WTGAHRS from Witmotion is IMU system with built in GPS. The IMU contain 3 Axis gyro, 3axis accelerometer and 3 axis magnetic compass, magnetometer. The GPS is integrated with IMU using kalman filter. It is INS-GPS navigation system, enables to measure attitude angles in Pitch, Roll and Yaw directions (Angles rotation around X, Y, Z axis) and also LAT, LONG and ground speed measurements.

Features

Output TTL .
Input Voltage: 5 - 36V.
The attitude measurement accuracy up to Static 0.05°, Dynamic 0.1°.
INS with built-in GPS
aluminum casing for magnetic interference and shock resistance
External GPS antenna.

Specifications

Accelerometer parameters

Parameters	Condition	Typical value
Measuring range		±16g
Resolution ratio	±16g	0.0005(g/LSB)
RMS noise	Bandwidth=100Hz	0.75~1mg-rms
Static zero drift	Place horizontally	±80mg
Temperature drift	-40°C ~ +85°C	±0.15mg/℃
Bandwidth		5~256Hz

Gyroscope parameters

Parameters	Condition	Typical value
Measuring range		±2000°/s
Resolution ratio	±2000°/s	0.061(°/s)/(LSB)
RMS noise	Bandwidth=100Hz	0.05(°/s)-rms
Static zero drift	Place horizontally	±0.5~1°/s
Temperature drift	-40°C ~ +85°C	±0.02%/℃
Bandwidth		5~256Hz

Pitch and roll angle parameters

Parameters	Condition	Typical value
Measuring range		X:±180°
Measuring range		Y:±90°
Inclination accuracy		0.2°
Resolution ratio	Place horizontally	0.0055°
Temperature drift	-40°C ~ +85°C	±0.5~1°

Heading angle parameter

Parameters	Condition	Typical value
Measuring range		Z:±180°
Heading accuracy	6-axis algorithm, static	0.5°（Dynamic integral cumulative error exists）【1】
Resolution ratio	Place horizontally	0.0055°

GPS Parameter

Index	Technical Parameters
Signal reception	BDS/GPS/QZSS/GLONASS
Cold start TTFF	≤32s
Hot start TTFF	≤1s
Recapture TTFF	≤1s
Cold start capture sensitivity	-148dBm
Hot start capture sensitivity	-156dBm
Recapture sensitivity	-160dBm
Tracking sensitivity	-162dBm
positioning accuracy	<2.5m（CEP50）
Speed measurement accuracy	<0.1m/s（1σ）
Location update rate	5Hz
protocol	NMEA0183
Maximum height	18000m
Maximum speed	515m/s
Maximum acceleration	4g

Witmotion WTGAHRS IMU with Built in GPS Attitude Angles and Position Sensor datasheet.

Witmotion WTGAHRS IMU with Built in GPS Attitude Angles and Position Sensor user manual.

Inertial & Vibration

Piezo Sensor Element 15 mm

Tilt Compensated Digital Compass LSM303DLHC (3 Axis accelerometer + 3 Axis Magnetometer))

Piezo Sensor Element 35mm

Piezo Sensor Element 20 mm

Piezo Sensor Element 27mm

Gesture Recognition Sensor PAJ7620

Witmotion WTGAHRS IMU with Built in GPS Attitude Angles and Position Sensor (Static 0.05°, Dynamic 0.1°)