Polhemus 3SPACE FASTRAK, Руководство пользователя, Страница: 12 / 124

FASTRAK MANUAL
Rev. G 7 JUNE 2012
up. When these routines are completed (after the flashing), the indicator will turn to a
steady-on state thereby indicating that the system is ready to operate.
10. You may now use the PiMgr to exercise the system. After clicking a single button or
sending a
‘P’ – Single Data Record Output command (see page 63 ) to the system, the 6
Degree-Of-Freedom (6DOF) output data will be sent to the host. The data consists of a
header (0
s , where s equals the station number) and six columns of data as follows: ( NOTE:
These values represent an arbitrary placement of the receiver and transmitter.)
1 2 3 4 5 6 7
01 16.08 -0.38 0.71 3.05 1.12 -0.67
FASTRAK Data Record
Column Function
1 01 Header (not shown above)
2 X position in inches
3 Y position in inches
4 Z position in inches
5 Azimuth attitude in degrees
6 Elevation attitude in degrees
7 Roll attitude in degrees
Because you have locked the receiver in one position relative to the transmitter (Step 4 ),
the data output will not change regardless of the number of data samples you take.
11. Remove the receiver, move it approximately six inches toward the transmitter, secure it in
place, and take a data point. The value of the X position data will decrease by
approximately six inches. The Y and Z values will remain roughly the same as the original
data. If you left the attitude of the receiver approximately the same as it was when you
started, then the attitude data will be approximately the same also.
12. Again, remove the receiver and without moving its position, try twisting it in azimuth (in
the same plane as the 2 x 4) approximately 45 degrees and lock it down with tape. Now
take another data point by clicking a single button or using the
‘P’ – Single Data Record
Output command (page 63 ). The first four columns will be approximately as they were in
Step 10 , but the Azimuth data in column 5 will have changed by approximately 45 degrees.
13. Experiment with the system as shown in Step 12 to demonstrate that it measures the
position and orientation (6DOF) of the receiver with respect to the transmitter.
14. If the system fails to produce 6DOF data, carefully go over the above procedure in a
systematic fashion, checking connections and switch settings especially. When all else
fails, call us.