SRV02 Gyroscope User Manual
1. Measure Encoder Input Channel #1.
2. Rotate the gyroscope module inner blue frame, one quarter of a full rotation and the encoder
should measure 1024 counts in quadrature mode.
Note
: Some data acquisition systems do not measure in quadrature and, in this case, one-quarter
of the expected counts are received, i.e. 256 counts in the SRV02-E or 512 in the SRV02-EHR.
In addition, some data acquisition systems measure in quadrature but increment the count by
0.25 (as opposed to having an integer number of counts). Make sure the details of the data-
acquisition system being used is known. The counters on the Quanser HIL boards measure in
quadrature and therefore a total of four times the number of encoder lines per rotation, e.g. a
1024-line encoder results in 4096 integer counts for every full rotation.
6.2.2. Troubleshooting
If the encoder is not measuring properly, go through this procedure:
●
Check that the data-acquisition board is functional, e.g. the LED on the Quanser Q2-USB
terminal board should be bright green. If not, then the terminal board or DAQ board fuses may
be burnt and need replacement.
●
Check that both the A and B channels from the encoder are properly generated and fed to the
data-acquisition device. Using an oscilloscope, there should be two square waves, signals A and
B, with a phase shift of 90 degrees. If this is not observed then the encoder may be damaged and
need to be replaced. Please see Section 7 for information on contacting Quanser for technical
support.
7. Technical Support
To obtain support from Quanser, go to
http://www.quanser.com/
and click on the
Tech Support
link.
Fill in the form with all the requested software and hardware information as well as a description of the
problem encountered. Also, make sure your e-mail address and telephone number are included. Submit
the form and a technical support representative will contact you.
8. References
[1] Quanser.
SRV02 User Manual
[2] Quanser.
Amplifier User Manual
[3] Quanser.
Data Acquisition Board User Manual
Document Number 908
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Revision 1.1
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