Place of Origin:
China
Brand Name:
Liocrebif
Certification:
GJB 9001C-2017
Model Number:
LKF-MSN300
For oil field
LKF-MSN300 MEMS inertial attitude measuring instrument adopts a strapdown navigation scheme composed of built-in high-precision MEMS gyroscope and MEMS accelerometer, which can directly point the azimuth angle, tilt angle and rolling angle of the logging hole. The range and bandwidth of the gyroscope and accelerometer of the sensor can be configured according to different user needs.
Fault diagnosis technology (customizable)
According to the needs of some application scenarios, multiple redundant inertial sensors are integrated in the module, which can realize fault diagnosis of product output and ensure the reliability of product work.
High quality and reliability
The company can effectively improve product quality and reduce system costs by comprehensively controlling upstream and downstream processes and technologies. At the same time, the company implements ISO9001 and GJB quality systems, and adopts strict processes to ensure the reliability and consistency of product performance.
The working temperature of the internal components of the attitude measuring instrument can reach 125℃, which well meets the relevant requirements of oil drilling measurement.
Table1 MSN300 Main Parameters
|
MEMS Gyroscope |
|
|
Range(°/s) |
±200 |
|
Bias(°/h,1σ) |
≤0.2 |
|
Bias stability(°/h,10s smooth) |
≤0.1 |
|
Bias instability(°/h,allan) |
≤0.02 |
|
Bias repeatability(°/h) |
≤0.1 |
|
Angular random walk(°/√h) |
≤0.01 |
|
Scale factor nonlinearity(ppm) |
≤100 |
|
Cross-coupling(rad) |
≤0.001 |
|
Bandwidth(Hz) |
≥50 |
|
MEMS Accelerometer |
|
|
Range(g) |
±30 |
|
Bias(mg,1σ) |
≤1 |
|
Bias stability(ug,10s smooth) |
≤100 |
|
Bias instability(ug,allan) |
≤50 |
|
Bias repeatability(ug) |
≤100 |
|
Velocity random walk(mm/s/√h) |
≤40 |
|
Scale factor nonlinearity(ppm) |
≤500 |
|
Cross-coupling(rad) |
≤0.001 |
|
Bandwidth(Hz) |
≥50 |
|
Navigation Accuracy |
|
|
North-seeking accuracy (°,1 σ ) |
1secL (L for Latitude) |
|
Horizontal attitude alignment accuracy (°,1 σ ) |
0.15 |
|
Heading holding accuracy(°,1σ) |
0.5°/h |
|
Horizontal attitude holding accuracy(°,1σ) |
0.2°/h |
|
Attitude tracking measurement accuracy(°,1σ) |
0.1 |
|
Electrical/mechanical interface |
|
|
Power supply (V) |
5~12 |
|
Power consumption (W) |
≤1.5 |
|
Start-up time (s) |
≤2 |
|
Communications interface |
1* RSS-422, 1* synchronous output |
|
Update rate (Hz) |
200 |
|
Size(mm×mm×mm) |
Φ31.8 × 85 |
|
Weight (g) |
≤400 |
|
Working environment |
|
|
Working temperature (℃) |
-40～+125 |
|
Storage temperature (℃) |
-55～+85 |
|
Vibration (g,Rms) |
20~2000HZ,6.06 |
|
Shock (g) |
1000g/1ms |
|
Reliability |
|
|
MTBF (h) |
200000 |
Table2 MSN300 Inertial Measurement Unit Connector External Pin Definitions
|
DB9 Pin |
Color |
Definition |
Function |
Notes |
|
6 |
Red |
+5V |
5V power supply |
System Power Supply(5V~12V) |
|
5 |
Black |
GND |
Power supply ground |
|
|
3 |
Purple |
DB9_RS_422 T+ |
Data transmit+ |
The data transmitter of the north seeker is upgraded and configured |
|
4 |
Orange |
DB9_RS_422 T- |
Data transmit- |
|
|
1 |
Yellow |
DB9_RS_422 R+ |
Data receive+ |
|
|
2 |
Green |
DB9_RS_422 R- |
Data receive- |
|
|
7 |
White |
TOV |
Data output pulse |
Data synchronization |
Main Features
Working at 125℃
Full temperature calibration
Good long-term stability
Sealing design
Strong resistance to vibration and impact
High performance, small size, light weight and low power consumption
Adopt high-performance MEMS inertial sensor
-40 ℃ to 125 ℃, full temperature operation
High attitude measurement accuracy
Support online software upgrade
Applications
Navigation under high temperature
North Seeking
Oil drilling heading measurement
Figure 1 Dimension
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