Laser Gyro INS (laser gyros+ quartz accelerometers) System, BELGM70A

The laser gyro inertial navigation system employs laser gyroscopes and quartz accelerometers as core sensors, combined with advanced strapdown technology and navigation calculation software to achieve high-precision real-time navigation. It supports multiple modes such as inertial/satellite navigation integration and inertial autonomous navigation, meeting the needs of various vessel platforms and providing accurate heading, roll, pitch, speed, and position information.

Model		BELGM70A
Accelerometer	Months Bias Repeatability（1σ）	≤20μg	Position accuracy	Pure inertia	≤1nm/2h
	Months Scale Factor Accuracy（1σ）	≤10ppm		Inertia/DVL Combination	≤0.3%D
Gyro	Bias Repeatability（1σ）	≤0.005°/hr	AHRS Applications Performance	Heading Accuracy	≤0.03°sec(L)
	Scale Factor Accuracy（1σ）	≤3ppm		Pitch & Roll Accuracy	≤0.015°
	Random walk（1σ）	≤0.0015°/√hr,1σ	Characteristics	Power consumption	＜30W
Features	Angular Rate	≥±400°/sec		Dimensions(mm)	193×169×160
	Angular Acceleration	100000°/sec²		Weight	＜6kg
	Acceleration	＞25g		Temperature	-40℃~60℃
	Angular Attitude	Any Orientation		Shock	15g，Half-sine wave 11ms
	Speed accuracy	≤1.2kn		Input Voltage	DC24V(±25%)
	Startup time	≤10sec		cooling	Conduction to mounting plate
	Input/output	3 RS422 full-duplex serial ports, 1 100M Ethernet port		Vibration	20~2000Hz,6.06g
	Alignment time	≤15min		MTBF	＞20000 hours