Microstrain - 3DM GX5-45
Inertial Sensor
    Country of Origin:USA
    Use:The LORD Sensing 3DM-GX5® family of high-performance industrial grade inertial sensors provides a wide range of triaxial inertial measurements and computed attitude and navigation solutions.
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The LORD Sensing 3DM-GX5® family of high-performance industrial grade inertial sensors provides a wide range of triaxial inertial measurements and computed attitude and navigation solutions. The 3DM-GX5-45 all-in-one navigation solution features a high performance integrated multi-constellation GNSS receiver utilizing the GPS, GLONASS, BeiDou, and Galileo satellite constellations. Sensor measurements are fully calibrated, temperature-compensated, and mathematically-aligned to an orthogonal coordinate system for highly accurate outputs. The auto-adaptive estimation filter algorithm produces highly accurate computed outputs under dynamic conditions. Computed outputs include pitch, roll, yaw, heading, position, velocity, and GNSS outputs- making it a complete GNSS/INS (GNSS Aided Inertial Navigation System) solution. The use of Micro-Electro-Mechanical System (MEMS) technology provides a highly accurate, small, light-weight device. The LORD Sensing MIP Monitor software can be used for device configuration, live data monitoring, and recording. Alternatively, the MIP Data Communications Protocol is available for development of custom interfaces and easy OEM integration.

Best in Class Performance

  • Fully calibrated, temperature-compensated, and mathematically-aligned to an orthogonal coordinate system for highly accurate outputs
  • High performance, low drift gyros with noise density of 0.005°/sec/√Hz and VRE of 0.001°/s/g²2RMS
  • Accelerometer noise as low as 25 µg/√Hz
  • Common protocol between 3DM®-GX3, GX4, RQ1, GQ4, GX5, and CV5
Ease of Use
  • Automatic magnetometer calibration and anomaly rejection eliminates the need for field calibration
  • Automatically compensates for vehicle noise and vibration
  • Easy integration via comprehensive and fully backward-compatible communication protocol
Cost Effective
  • Out-of-the-box solution reduces development time

Integrated sensors Triaxial accelerometer, triaxial gyroscope, triaxial magnetometer, pressure altimeter,temperature sensors and GNSS receiver
Data outputs Inertial Measurement Unit (IMU) outputs: acceleration, angular rate, magnetic field , ambient pressure, deltaTheta, deltaVelocity
Computed outputs: 

Extended Kalman Filter (EKF): filter status, GNSS timestamp, LLH position, NED velocity, attitude estimates (in Euler angles, quaternion, orientation matrix), linear and compensated acceleration, bias compensated angular rate, pressure altitude, gyroscope and accelerometer bias, scale factors and uncertainties, gravity and magnetic models, and more. Complementary Filter (CF): attitude estimates (in Euler angles, quaternion, orientation matrix), stabilizednorth and gravity vectorsGNSS correlation timestamp
Global Navigation Satellite System outputs (GNSS): LLH position, ECEF position and velocity, NED velocity, UTC time, 
GNSS time, SV.GNSSprotocol access mode available.
Inertial Measurement Unit (IMU) Sensor Outputs
  Accelerometer Gyroscope Magnetometer
Measurement range ±8 g (standard)
±2 g, ±4 g, ±20 g, ±40 g (optional)
300°/sec (standard)
±75, ±150,
±900 °/sec (optional)
±2.5 Gauss
Non-linearity ±0.02 % fs ±0.02 % fs ±0.3 % fs
Resolution <0.1 mg
<0.003°/sec --
Bias instability ±0.04 mg 8°/hr --
Initial bias error ±0.002 g ±0.04°/sec ±0.003 Gauss
Scale factor stability ±0.03% ±0.05% ±0.1%
Noise density 25 µg/√Hz (2 g) 0.005°/sec/√Hz (300 dps) 100 µGauss/√Hz
Alignment error ±0.05° ±0.05° ±0.05°
Adjustable bandwidth 225 Hz (max) 250 Hz (max) -
Offset error over
0.06% (typ) 0.04% (typ) --
Gain error over temperature 0.03% (typ) 0.03% (typ) --
Scale factor non-linearity
(@ 25° C)
0.02% (typ)
0.06% (max)
0.02% (typ)
0.06% (max)
±0.0015 Gauss
Vibration induced noise -- 0.072°/s RMS/g RMS --
Vibration rectification error (VRE) -- 0.001°/s/g2 RMS --
IMU filtering
Digital sigma-delta wide band anti-aliasing filter to digital averaging filter (user adjustable) scaled into physical units; coning and sculling integrals computed at 1 kHz
Sampling rate 1 kHz 4 kHz 50 Hz
IMU data output rate 1 Hz to 1000 Hz
Pressure Altimeter
Range -1800 m to 10,000 m
Resolution < 0.1 m
Noise density 0.01 hPa RMS
Sampling rate 25 Hz

Computed Outputs
Position accuracy ±2 m RMS horizontal, ± 5 m RMS vertical (typ)
Velocity accuracy ±0.1 m/s RMS (typ)
Attitude accuracy EKF outputs: ±0.25° RMS roll and pitch, ±0.8° RMS heading (typ)
CF outputs: ±0.5° roll, pitch, and heading (static, typ), ±2.0° roll, pitch, and heading (dynamic, typ)
Attitude heading range 360° about all axes
Attitude resolution < 0.01°
Attitude repeatability 0.2° (typ)
Calculation update rate 500 Hz
Computed data output rate EKF outputs: 1 Hz to 500 Hz
CF outputs: 1 Hz to 1000 Hz
Global Navigation Satellite System (GNSS) Outputs
Receiver type 72-channel GPS/QZSS L1 C/A, GLONASS L10F, BeiDou B1, SBAS L1 C/A:WAAS, EGNOS, MSAS Galileo E1B/C
GNSS data output rate 1 Hz to 4 Hz
Time-to-first-fix Cold start: 27 second, reacquisition: 1 second, hot start: <1 second
Sensitivity Tracking: -164 dBm, cold start: -147 dBm, hot start: -156 dBm
Velocity accuracy 0.1 m/sec
Heading accuracy 0.5°
Horizontal position accuracy GNSS: 2.5 m CEP
SBAS: 2.0 m CEP
Time pulse signal accuracy 30 nsec RMS
< 60 nsec 99%
Acceleration limit ≤ 4 g
Altitude limit No limit
Velocity limit 500 m/sec (972 knots)
Operating Parameters
Communication USB 2.0 (full speed)
RS232 (9,600 bps to 921,600 bps, default 115,200)
Power source +4 to + 36 V dc
Power consumption 700 mW (typ), 800 mW (max)
Operating temperature -40 °C to +85 °C
Mechanical shock limit 500 g (calibration unaffected)
1000 g (bias may change), 5000 g (survivability)
Physical Specifications
Dimensions 44.2 mm x 36.6 mm x 11 mm
Weight 20 grams
Enclosure material Aluminum
Regulatory compliance ROHS, CE
Connectors Data/power output: micro-DB9
GNSS  antenna:MMCX type
Software MIP Monitor, MIP Hard and Soft Iron Calibration, Windows XP/Vista/7/8/10 compatible
Compatibility Common protocol between 3DM-GX3, GX4, RQ1, GQ4, GX5, and CV5
Software development kit (SDK) MIP data communications protocol with sample code available (OS and platform independent)

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