How
to
Set
Up
and
Run
the
FG5
3
35. With both beam blockers pushed in, look through the telescope and focus
the crosshairs with the telescope by rotating the eyepiece. It may be
helpful to place a white card in front of the telescope to see the crosshairs
better.
!
DO NOT ADJUST THE
INFINITY FOCUS
OF THE
COLLIMATING TELESCOPE (adjust only the eyepiece). THE OPERATOR
WHO FOCUSES THE CROSSHAIRS SHOULD ALSO PERFORM THE
REMAINING ALIGNMENT STEPS (36-39).
36. Pull out the reference beam blocker and adjust the mirror mount in front
of the telescope to center the reference beam on the crosshairs.
3.1.8.VERTICAL ADJUSTMENT OF THE
TEST BEAM
37. Pull out the test beam blocker to view both the test and reference beams in
the telescope.
38. Perform a rough vertical adjustment of the test beam by turning the
adjustment screws at the bottom of the interferometer legs until the two
points are coincident in the telescope. This is most easily done by first
adjusting the interferometer leg nearest the telescope eyepiece (moving
the spot diagonally) until the test beam spot is on the vertical crosshair
which passes through the reference beam spot, either above or below it.
Then adjust the single leg on the side of the interferometer opposite the
telescope to move the test beam spot vertically up or down into
coincidence with the reference beam spot (centered on the crosshairs).
39. Align the test and reference beams precisely by blocking the reference
beam blocker and adjusting the interferometer legs until the test beam is
centered in the crosshairs of the telescope. Alternately block the test and
reference beams to verify that
both
beams
are centered on the crosshairs,
then return both beam blockers to their out position.
3-9
40. Snap the top bellows ring off of its retainer and lower the bellows ring so
it rests on the Superspring mounting plate. This allows access to the
underside of the interferometer.
Содержание FG5
Страница 19: ...Design Components and Function 2 Figure 2 8 Top view of interferometer optics and beam path 2 11 ...
Страница 20: ...Design Components and Function 2 Figure 2 9 Side view of interferometer optics and beam path 2 12 ...
Страница 22: ...Design Components and Function 2 Figure 2 10 The Superspring 2 14 ...
Страница 31: ...Design Components and Function 2 Figure 2 13 Rotation Monitor 2 23 ...
Страница 32: ......
Страница 42: ...How to Set Up and Run the FG5 3 3 10 ...
Страница 44: ...How to Set Up and Run the FG5 3 Figure 3 2 V Post 3 12 ...
Страница 53: ...How to Set Up and Run the FG5 3 1 Backup the data 2 Shut off computer power 3 21 ...
Страница 87: ...Adjustment and Maintenance 4 4 29 ...
Страница 91: ...Adjustment and Maintenance 4 4 33 ...
Страница 104: ...Troubleshooting 5 5 2 ...
Страница 117: ...Troubleshooting 5 5 15 ...
Страница 131: ...Checklists and Logs Appendix D 9 3 ...
Страница 140: ...Checklists and Logs Appendix D Table 9 6 Replacing Drive Belt 9 12 ...
Страница 145: ...Checklists and Logs Appendix D Table 9 10 Replace Linear Bearings 9 17 ...
Страница 149: ...Checklists and Logs Appendix D Table 9 13 Replace Shaft Encoder 9 21 ...