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GPS Inclinometer

Vigor Technology MEMS Inclinometer / GPS Inclinometer


  • Output data: position, speed, PPS clock, X & Y axis tilt angle 
  • Level position accuracy: 2.5 m CEP, 2.0 m @ SBAS 
  • PPS clock accuracy: 30ns RMS 
  • Speed accuracy: 0.1m/s 
  • Tilt repeatability: ±0.0025° 
  • Local gravity acceleration value adjust automatically, ensure accurate zero at any place of world 
  • Radio:GPS L1 band, C/A code, GALILEO Open Services GLONASS FDMA;SBAS:WAAS, EGNOS, MSAS 
  • Available to API for Google maps 


Agricultural & construction machinery, Trucks, Buses, Trains 
Other outdoor ground mobile devices 
Track inspection instrument, field geological exploration 
Instruments and other operation equipment 
Field synchronous test system(rely on tilt angle & PPS clock) 
Vessel and other marine equipment 
Geological disaster long-term monitoring system

GPS Inclinometer
Tilt specifications 
Measurement range ±5° ±10° ±15° ±30° ±45° ±60°
Combined absolute
accuracy ①(@25 ℃ )
±0.01° ±0.015° ±0.02° ±0.04° ±0.06° ±0.08°

Absolute linearity(LSF,%FS)

±0.06 ±0.03 ±0.03 ±0.03 ±0.02 ±0.02

Cross-axis sensitivity②

Offset ③ ±0.005° ±0.008°
Repeatability ±0.0025°
Hysteresis ±0.0025°
Allowed installation misalignment④ ±4.0° ±3.0° ±2.5° ±1.5° ±1.2° ±1.2°
Input-axis misalignment ≤±0.1°
Sensitivity temperature drift
≤100ppm/℃ ≤50ppm/℃
Offset temperature drift
≤0.003°/ ℃
Offset turn on repeatability⑤ ±0.008°
Resolution 0.0025°
Long-term stability(1 year)⑥ ≤0.02°
Measurement axis 1 or 2 axis
Output SSI( compatible RS422)
Synchronous clock 100kHz~500kHz
Cold start warming time 60s
GPS specifications
Level position accuracy 2.5m@CEP/2.0m @ SBAS
PPS clock accuracy 30ns RMS
Radio 50 channels, GPS L1 band, C/A code;GALILEO Open Services
Speed accuracy 0.1m/S
Max speed 500m/S
Cold start warming time 26s
Warm-start 1s
GPS antenna Active, frequency: 1575 M ± 3 MHZ, polarity: RHCP, standard length 3 M
Output data Position(longitude and latitude), speed, PPS clock, X & Y axis tilt angle
Output interface CAN, RS232, RS485, RS422
Refresh rate 5Hz,10Hz,20Hz
Power supply 9~36VDC
Power consumption Average working current≤50mA, average power≤1.5W(25℃&24VDC)
Operation temperature range -40~85℃
Storage temperature range -60~100℃
Insulation resistance 100MΩ
MTBF ≥25000 hours
Shock 100g@11ms, three-axis, half-sine
Vibration 8grms, 20~2000Hz
Protection IP67
Connecting Military class connector (MIL-C-26482)
Weight 420g(without connector and cable)

① Combined absolute accuracy means the compositive value of sensor's absolute linearity, repeatability, hysteresis, offset and cross-axis sensitivity error.(in room temperature condition) as
②The cross-axis sensitivity means the angle that the tilt sensor may be banked to the normal tilt direction of sensor. The cross-axis sensitivity (± 0.1%FS)shows how much perpendicular acceleration or inclination is coupled to the inclinometer output signal. For example, for the single-axis inclinometer withrange ±30°(assuming the X-axis as measured tilt direction), when there is a 10° tilt angle perpendicular to the X-axis direction(the actual measuring angle is no change, example as +8.505°), the output signal will generate additional error for this 10° tilt angle, this error is called as cross-axis sensitivity error.SST300`s cross-axis sensitivity is 0.1%FS, the extra error is 0.1%×30°=0.03°(max), then real output angle should be +(8.505°±0.03°). In SST300 series,this error has been combined into the absolute accuracy
③ Offset means that when no angle input (such as the inclinometer is placed on an absolute level platform), output of sensor is not equal to zero,the actualoutput value is zero offset value.
④ Allowed installation misalignment means during the installation, the allowable installation angle deviation between actual tilt direction and sensor's nature measure ment direction. In general, when installed,SST300 sensor is required that the measured tilt direction keep parallel or coincident with sensor designated edge, this parameter can be allowed a certain deviation when sensor is installed and does not affect the measurement accuracy.
⑤ Offset turn on repeatability means the repeatability of the sensor in repeated by supply power on-off-on many times.
⑥ Long-term stability means the deviation between the statistics of the maximum and the minimum output value after a year of continuous power supply when the sensor is at 20℃ .