Displacement Follower User’s Manual Version 1.4, April 19, 2004 IM1008
Page 18
Velocity and Acceleration Measurement Operating Procedure
Full-scale output for velocity and acceleration are determined as follows:
1
Note the full-scale range of measurement (FOV) of the lens being used.
2
With the system in operation, that is with the target in motion, set the
Velocity Time Constant
to 0.03ms and
work down until you obtain velocity peaks of just under 10V P-P. Full-scale outputs are 10V P-P and the system
will clip above that.
3
When the velocity has been set for just under 10V P-P, set the
Acceleration
control to 0.03ms, and work down
until you obtain acceleration peaks of just 10V P-P.
4
The velocity output is calibrated using this formula:
Range of Measurement
Velocity Time
10 volts =
5
The acceleration output is calibrated using this formula:
Range of Measurement
Velocity Time / Acceleration Time
10 volts =
Use the worksheet on the next page to help in calculating information from the moving target.
