SDI-151 is a North seeker with digital display,constituted with dual degree of freedom dynamically tuned gyro,mechanical transmission and signal decoding circuit.Dual degree of freedom gyro has two basic features, procession and stable spin axis .Rotation axis of gyro remains the orientation relative to inertial space, oppositely, the earth rotates for its angular velocity . If take the earth as standard, the gyro's axis will be found rotating relative to the earth. Therefore, the gyro can track and measure the angular velocity of the earth.North seekers take advantage of this different component of angular velocity on X and Y axis, then get the reference axis position info/then get the system's position info by the rate difference on X and Y sensitive axis.
Feature
1.Easy to operate
2.Automated north-seeking
3.With digital display
4.Meet vehicle-mounted environment
Applications
1.Antenna positioning
2.Vehicle positioning
3.Radar positioning
Performance
Azimuth measurement range 0°~360°
Azimuth measurement accuracy 0.06°1s
Azimuth resolution 0.01°
North seeking time 3min
Prepare time 10min
Operation state static
Tilt angle measurement range(option) ±8°
Tilt angle measurement accuracy(option) ±0.06°
Digital display LCD
Communication ports
Serial ports RS-422/RS-232
Baud rate 9600bps
Environmental
Operating temp -40?~60?
Bump 3g 8~11ms half-sine wave
Electrical
Input voltage 24~36VDC
Operating current 1A
Physical
Size 180×170×185 mm
Weight <10kg
