Low Dift Gyroscope Accelerometer Inertial Measurement Unit IMU
Low Dift Gyroscope Accelerometer Inertial Measurement Unit IMU
Product Description
The 16488HB multi-degree-of-freedom inertial measurement unit is a complete inertial system with a built-in three-axis gyroscope, a three-axis accelerometer, a three-axis magnetometer and a pressure sensor for measuring the three-axis angle of the carrier parameters such as rate, acceleration, three-axis magnetic field, air pressure, etc., output data after error compensation (including temperature compensation, installation misalignment angle compensation, nonlinear compensation, etc.) according to the communication protocol through SPI.
-
Three-axis digital gyroscope:
A) ± 2000º/s dynamic measurement range;
B) Zero bias stability: 3 °/H (GJB, 10S, Z-axis), 0.8 °/H (ALLAN, Z-axis);
2) Triaxial digital accelerometer:
A) ± 200g dynamic measurement range;
B) Zero bias stability: 0.4mg (GJB, 10S), 0.06mg (ALLAN);
3) Triaxial digital magnetometer: 2.5g auss
4) Digital barometer: 300mbar ~ 1100mbar
5) High reliability: MTBF 20000h;
6) Guaranteed accuracy within the full temperature range (-40 ℃ ~ + 80 ℃):
built-in high-performance temperature calibration and compensation algorithm;
7) Suitable for operation under strong vibration (6.06 G, 20 ~ 2000 Hz);
8) Suitable for working under large impact conditions (1000 G, 0.5ms);
Technical parameters
|
Parameter |
Test conditions |
Minimum value |
Typical value |
Maximum value |
Unit |
|
|
Gyroscope |
Dynamic measuring range |
|
|
500 |
2000 |
°/s |
|
Zero bias stability |
Allan variance, Z-axis |
|
0.8 |
|
°/h |
|
|
Allan variance, X and Y axis |
|
1.6 |
|
°/h |
||
|
10 s average (-40 ℃ ~ + 70 ℃, constant temperature), |
|
3 |
|
°/h |
||
|
10 s average (-40 ℃ ~ + 70 ℃, constant temperature), |
|
6 |
|
°/h |
||
|
Zero bias |
Zero-bias range, Z-axis |
|
±0.07 |
|
°/s |
|
|
Zero-bias range, X-axis and Y-axis |
|
±0.2 |
|
°/s |
||
|
Zero-bias change in full temperature range, Z-axis ① |
|
±0.02 |
|
°/s |
||
|
Zero Bias Change Over Temperature, X and Y |
|
±0.06 |
|
°/s |
||
|
Successive Start Repeatability, Z-axis |
|
0.002 |
|
|
||
|
Successive Start Repeatability, X-Axis and Y-Axis |
|
0.006 |
|
|
||
|
Day-by-day start repeatability, Z-axis |
|
0.003 |
|
/s |
||
|
Start repetition day by day, X axis and Y axis |
|
0.009 |
|
°/s |
||
|
Ffect of linear acceleration on bias |
|
0.002 |
|
°/s/g |
||
|
Influence of vibration on zero bias, change before and after vibration ② |
|
0.002 |
|
°/s/g |
||
|
Influence of vibration on zero bias, change before and during vibration ② |
|
0.002 |
|
°/s/g |
||
|
Scale factor |
Scale factor accuracy, Z-axis |
|
0.3 |
|
% |
|
|
Scale Factor Accuracy, X and Y Axis |
|
0.6 |
|
% |
||
|
Scale factor nonlinearity, Z-axis |
|
0.01 |
|
%FS |
||
|
Scale Factor Nonlinearity, X and Y Axis |
|
0.02 |
|
%FS |
||
|
Angular random walk |
|
|
0.15 |
|
°/ √hr |
|
|
Noise density |
|
|
0.001 |
|
°/s/ √Hz |
|
|
Resolution |
|
|
3.052×10-7 |
|
/s/LSB |
|
|
Bandwidth |
|
|
200 |
|
Hz |
|
|
Accelerometer |
Dynamic measuring range |
|
|
16 |
200 |
g |
|
Zero bias stability |
Allan variance |
|
0.06 |
|
mg |
|
|
10 s average (-40 ℃ ~ + 70 ℃, constant temperature) |
|
0.4 |
|
mg |
||
|
Zero bias |
Zero bias range |
|
2 |
|
mg |
|
|
Change of zero bias within the whole temperature range, peak-to-peak value ① |
|
4 |
|
mg |
||
|
Repeatability of successive starts |
|
0.5 |
|
mg |
||
|
Repeatability is initiated on a daily basis |
|
0.8 |
|
mg |
||
|
Zero-bias temperature coefficient |
|
0.05 |
0.1 |
mg/℃ |
||
Dimension
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