The NF1000 MEMS inertial north finder is a strapdown north finding solution composed of high-performance MEMS gyroscope and MEMS accelerometer, which can directly measure wellbore inclination angle and tool face angle. The three-axis MEMS gyroscope is sensitive to the angular motion of the carrier, and the three-axis MEMS accelerometer is sensitive to the linear acceleration of the carrier. The module internally compensates for the zero position, scale factor, non-orthogonal error, and acceleration related terms of all temperature parameters, which can maintain high measurement accuracy for a long time.
Part No, :
NF1000Order(MOQ) :
11. Product specification
MEMS gyroscope |
|
Range (°/s) |
±200 |
Zero position (°/h, 1 σ) |
≤0.2 |
Zero bias stability (°/h, 10s smooth) |
≤0.1 |
Zero bias instability (°/h, Allan) |
≤0.02 |
Zero bias repeatability (°/h) |
≤0.1 |
Angle random walk (°/√ h) |
≤0.01 |
Scale factor nonlinearity (ppm) |
≤100 |
Cross coupling (rad) |
≤0.001 |
Bandwidth (Hz) |
≥50 |
MEMS accelerometer |
|
Range (g) |
±30 |
Zero position (mg, 1 σ) |
≤1 |
Zero bias stability (ug, 10s smooth) |
≤100 |
Zero bias stability (ug, allan) |
≤50 |
Zero bias repeatability (ug) |
≤100 |
Speed random walk (mm/s/√ h) |
≤40 |
Scale factor nonlinearity (ppm) |
≤500 |
Cross coupling (rad) |
≤0.001 |
Bandwidth (Hz) |
≥50 |
Navigation accuracy |
|
North finding accuracy (°, 1 σ) |
1secL (L represents latitude) |
Horizontal attitude alignment accuracy (°, 1 σ) |
zero point one five |
Heading maintenance accuracy (°, 1 σ) |
0.5°*h |
Horizontal attitude maintenance accuracy (°, 1 σ) |
0.2°*h |
Attitude tracking measurement accuracy (°, 1 σ) |
zero point one |
Electrical/mechanical interface |
|
Power supply (V) |
5~12 |
Power (W) |
≤1.5 |
Start time (s) |
≤2 |
Communication interface |
1 RSS-422, 1 synchronous output |
Update rate (Hz) |
two hundred |
Size (mm × mm × mm) |
Φ31.8 × 85 |
Weight (g) |
≤400 |
Usage environment |
|
Working temperature (℃) |
-40~+125 |
Storage temperature (℃) |
-55~+85 |
Vibration (g, Rms) |
20~2000HZ,6.06 |
Impact (g) |
1000g/1ms |
Reliability |
|
MTBF (h) |
200,000 |
2. Product dimension
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