Specifications

Inertial Surveying Unit
1. High performance
2. Fully calibrated
3. Stable & reliable
4. Low power consumption

Reliable Inertial Surveying Unit 180 deg Measuring Range

Technical data 

Terms	Value	Remark
Heading(pending)
Range Range	+-180 deg
Accuracy	<1 deg	With compass aiding or GPS aiding
Resolution	0.01 deg
Attitude
Range: roll, pitch	+-180, +-90 deg
Accuracy	<0.3 deg	Helicopter steady flight or hovering
Resolution	0.01 deg
Angular rate
Range: roll, pitch, yaw	+-150, +-300 deg/s	Standard configuration
	+-900 deg/s	High range configuration
Bias absolute error	<0.5 deg/s	Over working temperature, without Kalman filter
	<0.02 deg/s	Kalman filter stabilized
Bias stability in-run	6 deg/hr	Typical, allan deviation
Resolution	<0.01 deg/s
Angle random walk	0.1deg/hr	Typical
Noise density	0.002deg/s hz
Acceleration
Range: x,y,z(g)	+-12 g	+-4 for low range version
Bias stability(/m/s2)	4 x 10-4	Typical, allan deviation
Resolution(mg)	<1 mg
Noise density(mg/Hz)	0.08
Bandwidth
Sensor bandwidth	20Hz	With internal filtering
Environment
Shock survival in run	750g at 1ms
Shock survival power off	1500g at 0.1ms
Vibration operational	6g rms	20Hz-20KHz, random
Operating temperature	-20°C~85°C	-40°C~1055°C with reduced spec
Enclosure level	IP66 compliant
Electrical
Input voltage(DC V)	11-13	Surge clamping above 15.0v
Size	74 x 60 x 56mm
Weight	<400g
Connector	Micro-DB9

 

Description
The AH/VG610B is a high reliable, vibration-rejecting state inertial meaurement unit. It consists of 3 vibration ring gyroscopes and 3 inertial damping accelerometers mounted orthogonally in each axis of space. Each device is factory calibrated over the working temperature range. The fusion of the sensors is performed with an extended Kalman filter to provide the potimal estimation of dynamic roll and pitch angle. The AH/VG610B is available in standard and high range sensor configurations.
The AH/VG610B is featured with a high performance vibration mechanism to provide excellent reliability under vibration and shock conditions.
The AH/VG610B can accept external electronic compass(module number TBD) to provide optimized heading angle. GPS aided version is also available upon request.

Features

• consistent performance under high vibration environment
• internal vibration isolation mechanism
• fully calibrated for offset, scale factor, cross-axis sensitivity and misalignment of each axis of sensors
• temperature compensated for improved bias and sensitivity stability
• double precision extended kalman filter running at 500 cycles per second with synchronous sampling rate at 128kSPS of each other
• data rate up of 250 packets per second. user-friendly RS232 digital interface
• low power consumption, typical 0.25A@12V
• complete against crossbow VG440

Application

• unmanned helicopters and light hilicopters
• UAV and AGV
• platform stabilization
• vessel applications
• inertial navigation systems

Dimension