User`s manual

Biaxial Displacement Follower User’s Manual Version 1.4, April 19, 2004 IM1013
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12. Output Filter Switch Selects one of three RC low pass filters at the displacement outputs.
13. Vel/Accel Switch Selected (Vert.Vel & Horiz.Vel) or (Vert.Vel & Vert. Accel) at the lower outputs.
14. Vel Time Constant Selector Selects the time constant used in calculating full scale velocity.
15. Vel/Accel Time Constant Selector Selects time constant for whether Horiz. Vel. Or Vert. Accel. As determined
by the Vel/Accel. switch.
16. Velocity Output A voltage proportional to vertical velocity appears here.
17.
Vel/Accel Output A voltage proportional to Horiz. Vel. Or Vert. Accel appears here.
18.
High Voltage Adjustment On rear of panel (not shown).
Description of Functions
V Out
A voltage proportional to the position of a vertically displaced target appears here, and is DC coupled.
Displacement over the full scale range of measurements would produce +/- 5.00 volts, or a change of 10.00 volts on the
output when properly calibrated with the vertical output gain control.
H Out
A voltage proportional to the position of a horizontally displaced target appears here, and is DC coupled.
Displacement over the full-scale range of measurement would produce +/- 5.00 volts or a change of 10.00 volts on the
output when properly calibrated with the horizontal output gain control.
V Gain
This is a 10-turn precision potentiometer which adjusts the vertical output’s amplitude. This control calibrates
the range of measurement and the output voltage so that a particular voltage will represent a particular displacement.
Consult the Lens Calibration data at the end of this manual for the proper setting of this control.
H Gain
This is a 10-turn precision potentiometer which adjusts the horizontal output’s amplitude. This control
calibrates the range of measurement and the output voltage so that a particular voltage will represent a particular
displacement. Consult the Lens Calibration data at the end of this manual for the proper setting of this control.
Mode Switch
This switch allows selection of five modes of operation:
Vertical – For monitoring displacement along the vertical axis (any external monitoring devices must be connected to
V Out).
Horizontal – For monitoring displacement along the horizontal axis ( any external monitoring device must be connect
to H Out).
Multiplex – For monitoring displacement along both the horizontal and the vertical axis at the same time.
Light Level – In the light level position the meter reads the amount of light on the aperture of the photo tube. The unit
will not track in the light level position
Off – Turns off power to the system.
Biaxial Target Switch
– Allows the tracker to properly track and automatically recapture a dark or a light center
target.
Target Phase Switches
– Allows the system to track vertically whether light over dark or dark over light targets; and
horizontally either light to the right or left.
Lock
– Adjusts the internal reference voltage in the servo loop to allow the system to track targets of varying contrast
ratios and of varying illumination intensities. When viewing the dark portion of the target, the lock on potentiometer should
be adjusted for light reading of –20 (see Operating Procedures).