Alignment with the help of the alignment service Nigel Warr 18th September 2015
Contents 1 Overview
2
2 The Leica AT401 Absolute Tracker
2
3 The CERN Coordinate System 3.1 Conversion from CERN to Miniball coordinate system . . . . . . . . . . . . . . . . . . . . . . 3.2 Conversion from Miniball to CERN coordinate system . . . . . . . . . . . . . . . . . . . . . .
2 4 4
4 Alignment of the frame
4
5 Alignment of the Coulex target chamber
6
6 Alignment of the targets
7
7 Alignment of the SPEDE target chamber
8
1
1
Overview
In the past, we used markings on the floor and on the wall behind the bending magnet before Miniball (viewed by opening a port-hole in the magnet) to set up the theodolite, so that it was directly over the point on the floor and looking at the point on the wall. This meant the theodolite was looking along the direction exactly opposite the beam direction. So if the target was centred on the crosshairs of the theodolite, it was correct. With HIE-ISOLDE it is no longer possible to open up a port-hole in the magnet and there is, in any case, no line of site to the wall and no mark on the wall. Instead there is a mark at the point where the beam intersects the wall after Miniball. There is also a mark on the floor after the beam dump. So in principle, we could mount the theodolite over the mark on the floor, line up to the one on the wall and rotate 180◦ and we would be looking also as before. Note that there are two ways to rotate the theodolite through 180◦ : • rotating about the vertical axis and using the scale to determine the number of degrees to rotate • rotating just the telescope about the horizontal axis and using the spirit level to get it level before and after the rotation. However, in 2015, we tried a new method for aligning, with the help of the alignment people (Michal Rebisz, Antje Behrens and Benoit Cummer). This new method is described in this document.
2
The Leica AT401 Absolute Tracker
The alignment service have a Leica AT401 Absolute Tracker, which is first set up using known points fixed in the floor and walls at ISOLDE, where they mount prisms and the AT401 uses a laser to determine is position relative to these points. After that, they can place a prism at any point and determine its absolute position in the CERN Coordinate System.
3
The CERN Coordinate System
The CERN Coordinate System has its origin at the PS, but there are offsets of about 2 km added to each coordinate, so it cannot be confused with any other system. The coordinates are either given as xCCS , yCCS , and zCCS or xCCS , yCCS , and HCCS . The relationship between zCCS and HCCS is given by:
zCCS = HCCS + 2000.00079 −
d2 2(R + h)
where
d=
p
(xCCS − 2000)2 + (yCCS − 2097.7927)2
and R is the mean radius of the earth in metres given by
R = 6371000 To go in the other direction, we use 0010
hCCS
zCCS − 2000.00079 + 0001 = d cos R
d2 2R
0011
Using the MADX calculation from 15/06/2015, which is in version 1.1 of the EDMS document 1323585 (https://edms.cern.ch/document/1323585/1.1) in the file XT01 survey ccs.txt. we have the coordinates of the Miniball target position:
x=1864.28940, y=2282.82486, z=2437.48881, h=437.49215 [m] 2
Figure 1: The Leica AT401 Absolute Tracker.
3
We define a Miniball coordinate system with the origin at the nominal target position, the y direction in the direction of the beam and the z-direction vertically upwards. So the z-axis is in the same direction as that of the CERN one, but it is rotated by -257.85485997◦ = -4.5004162987 radians1 , relative to the CERN coordinate system. Note, however, that we use millimetres not metres.
Angle between coordinate systems = -257.85485997◦ = -4.5004162987 radians Note that the Miniball CAD diagram is offset by 25 mm relative to the Miniball coordinate system. This is because it was designed for a nominal beam height of 1750 mm, but at ISOLDE the beam height is nominally at 1725 mm.
3.1
Conversion from CERN to Miniball coordinate system xM B =
1000 · (0.97761779 · (yCCS − 2282.824858) − 0.21038884 · (xCCS − 1864.289396))
yM B =
1000 · (−0.97761779 · (xCCS − 1864.289396) − 0.21038884 · (yCCS − 2282.824858))
zM B =
1000 · (zCCS − 2437.488812)
or 1000 · (HCCS − 437.492155)
zM B = where
0.97761779 = sin(−257.854860◦ ) 0.21038884 = cos(−257.854860◦ ) where the values with the CCS subscript are in the CERN Coordinate System and those with the MB subscript are in the Miniball coordinate system. The Miniball coordinate system has its origin at the nominal target position, with the y direction representing the beam and x horiziontal and z vertical.
3.2
4
Conversion from Miniball to CERN coordinate system xCCS =
1864.289396 − 0.97761779 · yM B /1000 − 0.21038884 · xM B /1000
yCCS =
2282.824858 + 0.97761779 · xM B /1000 − 0.21038884 · yM B /1000
zCCS =
zM B /1000 + 2437.488812
HCCS =
zM B /1000 + 437.492155
Alignment of the frame
To align the frame, we determined the absolute coordinates of the rings onto which the arcs are attached. There are three such rings below the target chamber and three above,on each side. By measuring at least three points on a ring, they can fit a circle and determine the centre of the circle. This should be exactly below or above the nominal target position. From the CAD diagrams, we know the positions of the centre of the top and bottom faces of each ring. If we number the rings from top to bottom, so the highest ring is ring 1 and the lowest is ring 12, we have the following coordinates for the centre of the top and bottom flat surfaces of each ring: 1 Angle
also taken from EDMS document 1323585
4
Figure 2: The Miniball frame, showing the 12 rings (bright green), numbered 1 to 12 from top to bottom. The beam goes into the page from left to right. Ring 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12 12
Surface Top Bottom Top Bottom Top Bottom Top Bottom Top Bottom Top Bottom Top Bottom Top Bottom Top Bottom Top Bottom Top Bottom Top Bottom
xM B , yM B , zM B [mm] 0, 0, +835 0, 0, +795 0, 0, +795 0, 0, +755 0, 0, +755 0, 0, +717 0, 0, +585 0, 0, +547 0, 0, +547 0, 0, +507 0, 0, +507 0, 0, +467 0, 0, -473 0, 0, -513 0, 0, -513 0, 0, -552 0, 0, -552 0, 0, -591 0, 0, -723 0, 0, -761 0, 0, -761 0, 0, -801 0, 0, -801 0, 0, -841
xCCS , yCCS , zCCS , HCCS [m] 1864.28940, 2282.82486, 2438.32381, 438.32715 1864.28940, 2282.82486, 2438.28381, 438.28715 1864.28940, 2282.82486, 2438.28381, 438.28715 1864.28940, 2282.82486, 2438.24381, 438.24715 1864.28940, 2282.82486, 2438.24381, 438.24715 1864.28940, 2282.82486, 2438.20581, 438.20915 1864.28940, 2282.82486, 2438.07381, 438.07715 1864.28940, 2282.82486, 2438.03581, 438.03915 1864.28940, 2282.82486, 2438.03581, 438.03915 1864.28940, 2282.82486, 2437.99581, 437.99915 1864.28940, 2282.82486, 2437.99581, 437.99915 1864.28940, 2282.82486, 2437.95581, 437.95915 1864.28940, 2282.82486, 2437.01581, 437.01915 1864.28940, 2282.82486, 2436.97581, 436.97915 1864.28940, 2282.82486, 2436.97581, 436.97915 1864.28940, 2282.82486, 2436.93681, 436.94015 1864.28940, 2282.82486, 2436.93681, 436.94015 1864.28940, 2282.82486, 2436.89781, 436.90115 1864.28940, 2282.82486, 2436.76581, 436.76915 1864.28940, 2282.82486, 2436.72781, 436.73115 1864.28940, 2282.82486, 2436.72781, 436.73115 1864.28940, 2282.82486, 2436.68781, 436.69115 1864.28940, 2282.82486, 2436.68781, 436.69115 1864.28940, 2282.82486, 2436.64781, 436.65115
Note, however, that these values are only achieved if the ball is closed and the locking pins are in place. However, it is rather hard to measure in this configuration, so it may be necessary to compromise. The rings above the target chamber are most affected by the absence of the locking pins.
5
5
Alignment of the Coulex target chamber
Miniball Coulex target chamber Beam direction
10
11 3
2
12
9
Coordinates relative to
CERN Coordinates System in m:
to centre in mm: 0
= (0,
1
0,
0)
0
(1864.2894, 2282.8249,
437.4922)
= (-137.5, -367.5, 100)
1
(1864.6776, 2282.7678,
437.5921)
2
= (-137.5, +367.5, 100)
2
(1863.9590, 2282.6131,
437.5922)
3
= (+137.5, -367.5, 100)
3
(1864.6197, 2283.0366,
437.5922)
4
= (+137.5, +367.5, 100)
4
(1863.9012, 2282.8820,
437.5922)
5
= (-127.5, -367.5, 100)
5
(1864.6755, 2282.7775,
437.5921)
6
= (-127.5, -351.5, 100)
6
(1864.6599, 2282.7742,
437.5921)
7
= (+127.5, -351.5, 100)
7
(1864.6062, 2283.0235,
437.5922)
8
= (+127.5, -367.5, 100)
8
(1864.6218, 2283.0268,
437.5922)
9
= (-127.5, +351.5, 100)
9
(1863.9726, 2282.6263,
437.5922)
10 = (-127.5, +367.5, 100)
10 (1863.9569, 2282.6229,
437.5922)
11 = (+127.5, +367.5, 100)
11 (1863.9033, 2282.8722,
437.5922)
12 = (+127.5, +351.5, 100)
12 (1863.9189, 2282.8756,
437.5922)
0
6
7 4
1 5
8
Figure 3: The target chamber alignment There are two ways to determine the alignment of the chamber:
6
Figure 4: The Leica retro-reflective targets mounted on the Miniball target wheel • Using the upper corners of the front and back plates • Using the sphere of the chamber itself The former method relies on the information in figure 3. In practise, it is not possible to use the points on the side plates, as there is a small difference depending how the side plates are mounted. However, you must have the side plates on to change the alignment, otherwise you could damage the target chamber. So it is really points 6, 7, 9 and 12 which need to be used. Point (See fig. 3) 6 7 9 12
xM B , yM B , zM B [mm] -127.5, -351.5, 100 +127.5, -351.5, 100 -127.5, +351.5, 100 +127.5, +351.5, 100
xCCS , yCCS , zCCS , HCCS [m] 1864.65985, 2282.77416, 2437.48881, 437.59215 1864.60620, 2283.02346, 2437.48881, 437.59215 1863.97259, 2282.62626, 2437.48881, 437.59215 1863.91894, 2282.87555, 2437.48881, 437.59215
The latter method involves measuring several points on the outer surface of the sphere and fitting a sphere to those points. For this, the side plates need to be removed (at least on one side), so it is not feasible to adjust the chamber this way, but it is a good check after using the other method.
6
Alignment of the targets
There are two ways to do this: • set up the theodolite so that it is looking in the inverse direction of the beam and check the crosshairs of the theodolite are centred on the target • use the absolute method with some special Leica retro-reflective targets (see fig. 4) mounted on the target wheel. 7
The former method has the disadvantage that it doesn’t measure the offset of the target along the beam direction. The nominal target position is2 : Point (See fig. 3) 0
7
xM B , yM B , zM B [mm] 0, 0, 0
xCCS , yCCS , zCCS , HCCS [m] 1864.28940, 2282.82486, 2437.48881, 437.49215
Alignment of the SPEDE target chamber
Figure 5: The SPEDE chamber The SPEDE target chamber is 27 mm longer than the Coulex one. As with the Coulex chamber, the target is centred between the two flanges, which are compatible with the Coulex ones. The points in the following table correspond to points 0, 5-11 in 3. i.e. without the side plates. The width (±127.5 mm) is the same, but the lengths (±365 and ±381 mm) are longer than those of the Coulex chamber (±351.5 and ±367.5 mm). Point (See fig. 5) 0 1 2 3 4 5 6 7 8
2 The
xM B , yM B , zM B [mm] 0.00, 0.00, 0.00 -127.50, -381.00, 80.00 -127.50, 381.00, 80.00 127.50, -381.00, 80.00 127.50, 381.00, 80.00 -127.50, -365.00, 80.00 -127.50, 365.00, 80.00 127.50, -365.00, 80.00 127.50, 365.00, 80.00
xCCS , yCCS , zCCS , HCCS [m] 1864.28940, 2282.82486, 2437.48881, 437.49215 1864.68869, 2282.78037, 2437.56881, 437.57214 1863.94375, 2282.62005, 2437.56881, 437.57216 1864.63504, 2283.02966, 2437.56881, 437.57215 1863.89010, 2282.86935, 2437.56881, 437.57216 1864.67305, 2282.77700, 2437.56881, 437.57214 1863.95939, 2282.62342, 2437.56881, 437.57216 1864.61940, 2283.02630, 2437.56881, 437.57215 1863.90574, 2282.87271, 2437.56881, 437.57216
nominal target position is taken from version 1.1 of the EDMS document 1323585.
8
Contents 1 Overview
2
2 The Leica AT401 Absolute Tracker
2
3 The CERN Coordinate System 3.1 Conversion from CERN to Miniball coordinate system . . . . . . . . . . . . . . . . . . . . . . 3.2 Conversion from Miniball to CERN coordinate system . . . . . . . . . . . . . . . . . . . . . .
2 4 4
4 Alignment of the frame
4
5 Alignment of the Coulex target chamber
6
6 Alignment of the targets
7
7 Alignment of the SPEDE target chamber
8
1
1
Overview
In the past, we used markings on the floor and on the wall behind the bending magnet before Miniball (viewed by opening a port-hole in the magnet) to set up the theodolite, so that it was directly over the point on the floor and looking at the point on the wall. This meant the theodolite was looking along the direction exactly opposite the beam direction. So if the target was centred on the crosshairs of the theodolite, it was correct. With HIE-ISOLDE it is no longer possible to open up a port-hole in the magnet and there is, in any case, no line of site to the wall and no mark on the wall. Instead there is a mark at the point where the beam intersects the wall after Miniball. There is also a mark on the floor after the beam dump. So in principle, we could mount the theodolite over the mark on the floor, line up to the one on the wall and rotate 180◦ and we would be looking also as before. Note that there are two ways to rotate the theodolite through 180◦ : • rotating about the vertical axis and using the scale to determine the number of degrees to rotate • rotating just the telescope about the horizontal axis and using the spirit level to get it level before and after the rotation. However, in 2015, we tried a new method for aligning, with the help of the alignment people (Michal Rebisz, Antje Behrens and Benoit Cummer). This new method is described in this document.
2
The Leica AT401 Absolute Tracker
The alignment service have a Leica AT401 Absolute Tracker, which is first set up using known points fixed in the floor and walls at ISOLDE, where they mount prisms and the AT401 uses a laser to determine is position relative to these points. After that, they can place a prism at any point and determine its absolute position in the CERN Coordinate System.
3
The CERN Coordinate System
The CERN Coordinate System has its origin at the PS, but there are offsets of about 2 km added to each coordinate, so it cannot be confused with any other system. The coordinates are either given as xCCS , yCCS , and zCCS or xCCS , yCCS , and HCCS . The relationship between zCCS and HCCS is given by:
zCCS = HCCS + 2000.00079 −
d2 2(R + h)
where
d=
p
(xCCS − 2000)2 + (yCCS − 2097.7927)2
and R is the mean radius of the earth in metres given by
R = 6371000 To go in the other direction, we use 0010
hCCS
zCCS − 2000.00079 + 0001 = d cos R
d2 2R
0011
Using the MADX calculation from 15/06/2015, which is in version 1.1 of the EDMS document 1323585 (https://edms.cern.ch/document/1323585/1.1) in the file XT01 survey ccs.txt. we have the coordinates of the Miniball target position:
x=1864.28940, y=2282.82486, z=2437.48881, h=437.49215 [m] 2
Figure 1: The Leica AT401 Absolute Tracker.
3
We define a Miniball coordinate system with the origin at the nominal target position, the y direction in the direction of the beam and the z-direction vertically upwards. So the z-axis is in the same direction as that of the CERN one, but it is rotated by -257.85485997◦ = -4.5004162987 radians1 , relative to the CERN coordinate system. Note, however, that we use millimetres not metres.
Angle between coordinate systems = -257.85485997◦ = -4.5004162987 radians Note that the Miniball CAD diagram is offset by 25 mm relative to the Miniball coordinate system. This is because it was designed for a nominal beam height of 1750 mm, but at ISOLDE the beam height is nominally at 1725 mm.
3.1
Conversion from CERN to Miniball coordinate system xM B =
1000 · (0.97761779 · (yCCS − 2282.824858) − 0.21038884 · (xCCS − 1864.289396))
yM B =
1000 · (−0.97761779 · (xCCS − 1864.289396) − 0.21038884 · (yCCS − 2282.824858))
zM B =
1000 · (zCCS − 2437.488812)
or 1000 · (HCCS − 437.492155)
zM B = where
0.97761779 = sin(−257.854860◦ ) 0.21038884 = cos(−257.854860◦ ) where the values with the CCS subscript are in the CERN Coordinate System and those with the MB subscript are in the Miniball coordinate system. The Miniball coordinate system has its origin at the nominal target position, with the y direction representing the beam and x horiziontal and z vertical.
3.2
4
Conversion from Miniball to CERN coordinate system xCCS =
1864.289396 − 0.97761779 · yM B /1000 − 0.21038884 · xM B /1000
yCCS =
2282.824858 + 0.97761779 · xM B /1000 − 0.21038884 · yM B /1000
zCCS =
zM B /1000 + 2437.488812
HCCS =
zM B /1000 + 437.492155
Alignment of the frame
To align the frame, we determined the absolute coordinates of the rings onto which the arcs are attached. There are three such rings below the target chamber and three above,on each side. By measuring at least three points on a ring, they can fit a circle and determine the centre of the circle. This should be exactly below or above the nominal target position. From the CAD diagrams, we know the positions of the centre of the top and bottom faces of each ring. If we number the rings from top to bottom, so the highest ring is ring 1 and the lowest is ring 12, we have the following coordinates for the centre of the top and bottom flat surfaces of each ring: 1 Angle
also taken from EDMS document 1323585
4
Figure 2: The Miniball frame, showing the 12 rings (bright green), numbered 1 to 12 from top to bottom. The beam goes into the page from left to right. Ring 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12 12
Surface Top Bottom Top Bottom Top Bottom Top Bottom Top Bottom Top Bottom Top Bottom Top Bottom Top Bottom Top Bottom Top Bottom Top Bottom
xM B , yM B , zM B [mm] 0, 0, +835 0, 0, +795 0, 0, +795 0, 0, +755 0, 0, +755 0, 0, +717 0, 0, +585 0, 0, +547 0, 0, +547 0, 0, +507 0, 0, +507 0, 0, +467 0, 0, -473 0, 0, -513 0, 0, -513 0, 0, -552 0, 0, -552 0, 0, -591 0, 0, -723 0, 0, -761 0, 0, -761 0, 0, -801 0, 0, -801 0, 0, -841
xCCS , yCCS , zCCS , HCCS [m] 1864.28940, 2282.82486, 2438.32381, 438.32715 1864.28940, 2282.82486, 2438.28381, 438.28715 1864.28940, 2282.82486, 2438.28381, 438.28715 1864.28940, 2282.82486, 2438.24381, 438.24715 1864.28940, 2282.82486, 2438.24381, 438.24715 1864.28940, 2282.82486, 2438.20581, 438.20915 1864.28940, 2282.82486, 2438.07381, 438.07715 1864.28940, 2282.82486, 2438.03581, 438.03915 1864.28940, 2282.82486, 2438.03581, 438.03915 1864.28940, 2282.82486, 2437.99581, 437.99915 1864.28940, 2282.82486, 2437.99581, 437.99915 1864.28940, 2282.82486, 2437.95581, 437.95915 1864.28940, 2282.82486, 2437.01581, 437.01915 1864.28940, 2282.82486, 2436.97581, 436.97915 1864.28940, 2282.82486, 2436.97581, 436.97915 1864.28940, 2282.82486, 2436.93681, 436.94015 1864.28940, 2282.82486, 2436.93681, 436.94015 1864.28940, 2282.82486, 2436.89781, 436.90115 1864.28940, 2282.82486, 2436.76581, 436.76915 1864.28940, 2282.82486, 2436.72781, 436.73115 1864.28940, 2282.82486, 2436.72781, 436.73115 1864.28940, 2282.82486, 2436.68781, 436.69115 1864.28940, 2282.82486, 2436.68781, 436.69115 1864.28940, 2282.82486, 2436.64781, 436.65115
Note, however, that these values are only achieved if the ball is closed and the locking pins are in place. However, it is rather hard to measure in this configuration, so it may be necessary to compromise. The rings above the target chamber are most affected by the absence of the locking pins.
5
5
Alignment of the Coulex target chamber
Miniball Coulex target chamber Beam direction
10
11 3
2
12
9
Coordinates relative to
CERN Coordinates System in m:
to centre in mm: 0
= (0,
1
0,
0)
0
(1864.2894, 2282.8249,
437.4922)
= (-137.5, -367.5, 100)
1
(1864.6776, 2282.7678,
437.5921)
2
= (-137.5, +367.5, 100)
2
(1863.9590, 2282.6131,
437.5922)
3
= (+137.5, -367.5, 100)
3
(1864.6197, 2283.0366,
437.5922)
4
= (+137.5, +367.5, 100)
4
(1863.9012, 2282.8820,
437.5922)
5
= (-127.5, -367.5, 100)
5
(1864.6755, 2282.7775,
437.5921)
6
= (-127.5, -351.5, 100)
6
(1864.6599, 2282.7742,
437.5921)
7
= (+127.5, -351.5, 100)
7
(1864.6062, 2283.0235,
437.5922)
8
= (+127.5, -367.5, 100)
8
(1864.6218, 2283.0268,
437.5922)
9
= (-127.5, +351.5, 100)
9
(1863.9726, 2282.6263,
437.5922)
10 = (-127.5, +367.5, 100)
10 (1863.9569, 2282.6229,
437.5922)
11 = (+127.5, +367.5, 100)
11 (1863.9033, 2282.8722,
437.5922)
12 = (+127.5, +351.5, 100)
12 (1863.9189, 2282.8756,
437.5922)
0
6
7 4
1 5
8
Figure 3: The target chamber alignment There are two ways to determine the alignment of the chamber:
6
Figure 4: The Leica retro-reflective targets mounted on the Miniball target wheel • Using the upper corners of the front and back plates • Using the sphere of the chamber itself The former method relies on the information in figure 3. In practise, it is not possible to use the points on the side plates, as there is a small difference depending how the side plates are mounted. However, you must have the side plates on to change the alignment, otherwise you could damage the target chamber. So it is really points 6, 7, 9 and 12 which need to be used. Point (See fig. 3) 6 7 9 12
xM B , yM B , zM B [mm] -127.5, -351.5, 100 +127.5, -351.5, 100 -127.5, +351.5, 100 +127.5, +351.5, 100
xCCS , yCCS , zCCS , HCCS [m] 1864.65985, 2282.77416, 2437.48881, 437.59215 1864.60620, 2283.02346, 2437.48881, 437.59215 1863.97259, 2282.62626, 2437.48881, 437.59215 1863.91894, 2282.87555, 2437.48881, 437.59215
The latter method involves measuring several points on the outer surface of the sphere and fitting a sphere to those points. For this, the side plates need to be removed (at least on one side), so it is not feasible to adjust the chamber this way, but it is a good check after using the other method.
6
Alignment of the targets
There are two ways to do this: • set up the theodolite so that it is looking in the inverse direction of the beam and check the crosshairs of the theodolite are centred on the target • use the absolute method with some special Leica retro-reflective targets (see fig. 4) mounted on the target wheel. 7
The former method has the disadvantage that it doesn’t measure the offset of the target along the beam direction. The nominal target position is2 : Point (See fig. 3) 0
7
xM B , yM B , zM B [mm] 0, 0, 0
xCCS , yCCS , zCCS , HCCS [m] 1864.28940, 2282.82486, 2437.48881, 437.49215
Alignment of the SPEDE target chamber
Figure 5: The SPEDE chamber The SPEDE target chamber is 27 mm longer than the Coulex one. As with the Coulex chamber, the target is centred between the two flanges, which are compatible with the Coulex ones. The points in the following table correspond to points 0, 5-11 in 3. i.e. without the side plates. The width (±127.5 mm) is the same, but the lengths (±365 and ±381 mm) are longer than those of the Coulex chamber (±351.5 and ±367.5 mm). Point (See fig. 5) 0 1 2 3 4 5 6 7 8
2 The
xM B , yM B , zM B [mm] 0.00, 0.00, 0.00 -127.50, -381.00, 80.00 -127.50, 381.00, 80.00 127.50, -381.00, 80.00 127.50, 381.00, 80.00 -127.50, -365.00, 80.00 -127.50, 365.00, 80.00 127.50, -365.00, 80.00 127.50, 365.00, 80.00
xCCS , yCCS , zCCS , HCCS [m] 1864.28940, 2282.82486, 2437.48881, 437.49215 1864.68869, 2282.78037, 2437.56881, 437.57214 1863.94375, 2282.62005, 2437.56881, 437.57216 1864.63504, 2283.02966, 2437.56881, 437.57215 1863.89010, 2282.86935, 2437.56881, 437.57216 1864.67305, 2282.77700, 2437.56881, 437.57214 1863.95939, 2282.62342, 2437.56881, 437.57216 1864.61940, 2283.02630, 2437.56881, 437.57215 1863.90574, 2282.87271, 2437.56881, 437.57216
nominal target position is taken from version 1.1 of the EDMS document 1323585.
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Wild T16 Theodolite Manual Pdf
Wild T1 Theodolite Manual Wild T1 Theodolite Manual Wild T1 Theodolite Manual T1 Micrometer Theodolite (model 70): 1973 - 1996 The Wild T1 is a Double Centre Theodolite with two independend cylindrical axes and they where produced between 1933 and 1996 in mainly four versions as shown abouve. Page 4/23 Acces PDF Wild T1 Theodolite Manual.
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Diese Seite gibt ihnen einen Überblick über all die Theodolite produziert von Wild Heerbrugg über all die Jahre. Dieser Link führt Sie zu den Technischen Daten der optischen Theodolite Verwenden Sie diesen Link zu Wild Theodolite und Zubehör | This page will give you a overview over all the theodolites produced from Wild Heerbrugg over all the years. Use this link to see the Technical data of the WILD optical theodolites Use this link to see the page with the WILD THEODOLITES AND ACCESSORIES FOR EVERY SURVEY TASK with Technical data of the WILD theodolite from 1965 Use this link to read a article about the changes from the first T2 to the Leica TCA2003 from Hugh BaertleinInside the Leica TCA2003 Note: not all data have been recorded, so some of the years are only estimated. This list is definitively not complete, but I will do my best to hold it updated. |
Typ / Model in production
(internal designation) from till
(internal designation) from till
Wild T0 Compass Thoeodolite T0 1932 - 1972 T0 (var) 1973 - 1978 T0 (neu) 1979 - 1990 |
The Wild T0 Compass Theodolite is a compact lightweight instrument, which can be used either for observing and setting-out magnetic bearings or as a normal theodolite for measuring or turning-off angles. It is particularly useful for rapid traversing, based on magnetic bearings, especially in areas where visibility is limited and the traverse legs likely to be short. The T0 can also be used for photogrammetric ground control surveys, low-order detailing, on building sites or as a recon- naissance instrument. The compass theodolite has a spring lever which to be moved to lower the compass circle onto its pivot. As this lever returns to its original position when released, thus raising the circle, the pivot can be damaged only as a result of particularly careless mishandling. Horizontal (i.e. Compass) Circle readings are of unusually high .accuracy for an instrument of this type and size, because of the coincidence setting of the diametrically-opposite parts of the circle. Horizontal and vertical circle readings are made to the nearest minute. The telescope has a magnification of 20x.
Accessories which can be attached to the TO include a telescope level, the Wild Objective Pentaprism, the Wild - Roelofs Solar Prism and an eyepiece sunglass for sighting bright objects.
Accessories which can be attached to the TO include a telescope level, the Wild Objective Pentaprism, the Wild - Roelofs Solar Prism and an eyepiece sunglass for sighting bright objects.
Wild T1 Double Centre Theodolite T1 1933 - 1938 NT1 1938 - 1956 T1AE 1959 - 1969 T101A 1965 - 1965 T101AE 1965 - 1966 T1 (70) / T1 (var) 1973 - 1996 |
The Wild T1A Double Center Theodolite is used for low-order triangulation, cadastral work, tunnel traverses, general traversing, tacheometry, property surveys, mine surveys, building site lay-outs etc. - in fact for most survey and engineering tasks where first or second order accuracies are not essential.
After the usual initial leveling-up, using the footscrews and plate level, the T1A is ready for vertical angles to be measured, there being no index level to center. The simple automatic vertical index, which replaces the usual level, thus makes vertical circle reading an easy matter and, as there are no mechanical parts, the liquid compensator has nothing to wear out-and nothing to maintain.
Each circle is read with the aid of an optical micrometer whose drum is cc).graduated to 20” (or 1c), with estimation made easily to 5” (or 10cc). Having two independent cylindrical vertical axes and two horizontal clamps (one each for the lower and upper plate and shaped differently to avoid confusion) the T1A allows the repetition method to be used for observing.
The T1A-E is identical to the T1A, except that its telescope provides an upright image - a feature often appreciated by users unaccustomed to working with an image that is reversed both laterally and vertically.
As the T1A (and T1A-E) can be removed from the tribrach without disturbing the centering, the famous Wild traversing equipment can be used with this theodolite, together with the full range of accessories, which is tabulated later.
After the usual initial leveling-up, using the footscrews and plate level, the T1A is ready for vertical angles to be measured, there being no index level to center. The simple automatic vertical index, which replaces the usual level, thus makes vertical circle reading an easy matter and, as there are no mechanical parts, the liquid compensator has nothing to wear out-and nothing to maintain.
Each circle is read with the aid of an optical micrometer whose drum is cc).graduated to 20” (or 1c), with estimation made easily to 5” (or 10cc). Having two independent cylindrical vertical axes and two horizontal clamps (one each for the lower and upper plate and shaped differently to avoid confusion) the T1A allows the repetition method to be used for observing.
The T1A-E is identical to the T1A, except that its telescope provides an upright image - a feature often appreciated by users unaccustomed to working with an image that is reversed both laterally and vertically.
As the T1A (and T1A-E) can be removed from the tribrach without disturbing the centering, the famous Wild traversing equipment can be used with this theodolite, together with the full range of accessories, which is tabulated later.
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Wild T16 Tacheometer Thoeodolite T16The T160 is a normal TI6 theodolite without the vertical circle unit. If the user is certain that his survey tasks will never require the measurement of vertical angles this model will be of economic advantage to him. The detachable tribrach ensures that the T16 can be used with all Wild traversing equipment and, of course, the normal accessories and attachments all provide additional uses and accuracies for the instrument. Wild T1 Theodolite Manual
Xxx - OtherThe well-known Wild T2 Universal Theodolite is ideally suited for almost every type of survey task. In addition to its high accuracy, with direct reading, to single seconds, it is simple to handle, has a well-illuminated optical and reading system and can be used with a large variety of accessories and attachments. The optics are sufficiently good to allow observing to normal targets up to 12 miles (20 km) away and, under favorable conditions, for pointing to the Pole Star to be made in the late afternoon. Circle readings, are made through one eyepiece, an inverter knob bringing the required circle image into the field of view. Coincidence setting provides a direct meaning of the two diametrically-opposite circle positions. The single second graduations and the general quality of the T2, with its all steel construction offering addition-al stability, make it a real 'Universal' theodolite widely used for triangulations up to 3rd arid even 2nd order limits, precise traversing, subtense measurements, astronomical observations, tacheometry, engineering work of all types, cadastral lay-outs, staking-out straights and curves, mining surveys and special industrial purposes, for which the special inter- changeable GOA autocollimation eyepiece is most useful. The T2-E is identical to the T2, apart from the upright telescope image and the T210 is another Variation of the instrument which, in this ease, has no vertical circle, being used for tasks where the T2's accuracy is required but without vertical angles. All models of the T2 are made so that the instrument can be removed from its tribrach and replaced by a target or subtense bar, without disturbing the centering. lf required, a special tribrach without built-in optical plummet, is available and another special tribrach fitted with a ball-centering device enables the T2 to be set up on an observation pillar in an embedded centering socket (a pillar bolt).
The Wild T3 Precision Theodolite is simple to use and, in fact, is similar to the T2 both in looks and operation. It is, however, larger and has even more accurate circles. Originally designed for 1st and 2nd order triangulations it is now becoming equally popular for the high precision measurements required &n such fields as dam Deformation surveys, industrial installations and machine tooling. For these last-named functions the T3A auto-collimation model is normally used, although it is possible to fit a standard T3 with a special autocollimation eyepiece unit (24 x magnification), interchangeable with the normal telescope eyepiece. The T3's steel construction gives it exceptional stability under all conditions, which provides an additional reason for its general acceptance as the perfect instrument for precision measurements. Although not equipped with a detachable tribrach the T3 has various possibilities for forced-centering, such as a ball centering device for pillar set-ups and a removable bayonet base allowing the theodolite to be used in conjunction with a special T3 - T2 combination locking bayonet base, which takes the T3, the T2 and all items of T2 traverse equipment. In addition it has its own range of accessories such as eyepiece prisms for steep sights, an astrolabe prism and other items intended for use on dam deformation work. Wild T1a Theodolite Manual
The Wild T4 Universal Instrumentis the largest of the Wild range of theodolites and is used for geodetic triangulation, astronomical observations and-geographical position determinations. Its broken telescope (with 65x magnification) allows comfortable sighting to the zenith. Circle readings are made with an optical micrometer and by coincidence setting of diametrically opposite graduations. The horizontal circle is read directly to 0.1” and the vertical circle is .0.2”. Accessories of equally high precision are also available for use with the T4, such as a chronograph, a chronometer and a time signal receiver. The Wild RDH Double Image Tacheometeris used with a special horizontal staff and provides very accurate tacheometric measurements. Based on the popular TI6 theodolite, with the same scale reading system, the RDH has a double image telescope which enables a direct horizontal distance reading and a direct difference in elevation to be obtained with a single pointing to the staff. Wild T1 Theodolite Manual Pdf
Wild Heerbrugg T16 Theodolite ManualThe Wild RDS Self-Reducing Tacheometer gives a direct horizontal distance reading and a height difference involving no tables and only a simple mental multiplication. Based on the TI6 theodolite, the RDS is used with a vertical staff and the normal stadia lines are replaced by very flat curves. When the special RDS staff is used, its zero mark is set to the same height as the tilting axis of the instrument, thus making calculations even easier. The RDS can be used as an ordinary theodolite, with the normal TI6 reading accuracies.
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