Download Inertial Unit: Watson

IMU-E604 Manual, Revision G
3.4
Heading
Analog
Resolution
Accuracy
Repeatability
Digital
0.09°
0.03°
±3° to 30 Degrees Angle*
Better Than 0.5°, Analog and Digital
Analog Scale: 0-360° (18°/Volt), South = ±10 VDC, West = -5 VDC, North = 0 VDC, East = +5 VDC
*Accuracy of the unit is greatly dependent upon field calibration. Even with perfect calibrations, field variations in the
magnetic declination will affect accuracy.
3.5 Other Specifications
Power Requirement
+12 VDC, < 600 mA
Size
See Drawing, Appendix F
Weight
< 4 Pounds
Shock (Survival)
600 g's
Temperature Range
Operating:
Survival:
-30°C to +71°C
-40°C to +85°C
4.0 Output and Interface
The IMU has both an analog and a digital interface. To prevent hardware/software conflicts, all analog
switches are disabled when the following RS-232 commands are sent to the unit.
Reference Command
Velocity Command
Coast Mode Command
4.1 Analog Outputs
The analog outputs have a full scale range of ±10 VDC and come from a 12 bit digital to analog
converter. The following outputs are available. Their full scale ranges are listed in the second column.
Roll*
Pitch*
Heading*
X Acceleration
Y Acceleration
Z Acceleration
Forward Acceleration
Lateral Acceleration
Vertical Acceleration
X Rate
Y Rate
Z Rate
Phone: (715) 839-0628
±180°
±180°
±180° (North = 0 VDC)
±2 g’s
±2 g’s
±2 g’s
±2 g’s
±2 g’s
±2 g’s
±100°/sec
±100°/sec
±100°/sec
Fax: (715) 839-8248
EMail: [email protected]
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