Micro-gyro north seeking HT-INS-100
(Weight only 65g；With heading keeping ability)
Product characteristics
1.High precision, small size, long-term stability.
2.Full temperature compensation.
3.Strong ability to withstand impact vibration.
4.Zero bias stability : Allan Variance 0.02° / h.
5. Completely independent gyro north seeking, free from ferromagnetism and external environment interference.
6. After the completion of north seeking, the heading keeping accuracy in motion is less than 0.3 °/h.
Product description
HT-INS-100 is a small-volume, high-precision MEMS inertial measurement unit, which integrates three-axis high-precision MEMS gyroscope, three-axis high-precision MEMS accelerometer, and full-temperature compensation before the product is out of the factory to ensure its stable performance in complex temperature environment. The products are widely used in intelligent handling robots ( AGV ), autonomous underwater vehicles ( AUV ), industrial equipment, measurement / map, stable platform, transportation, unmanned aerial vehicles ( UAV ), and unmanned ground vehicles ( UGV ).
Main technical
system performance | |||
Parameters | Conditional | Index | Unit |
Measurement range | 0~360 | ° | |
Initial north-seeking accuracy | 25℃ 1δ | 0.5（0.2° after calibration） | ° |
Initial alignment time | 3 | min | |
Heading keeping accuracy | 0.3 | °/h | |
Attitude measurement accuracy | 0.03（No long-term drift） | ° | |
Gyroscope performance | |||
Parameters | Conditional | Index | Unit |
Measurement range | 150
| °/s | |
Zero-bias stability | Allan Variance | 0.02 | °/h |
Zero bias repeatability | 0.1 | °/h | |
Scale factor repeatability | 100
| ppm | |
Random walk | 0.005 | °/ √h | |
Accelerometer performance | |||
Parameter | Conditions | Index | Unit |
Range | ±2、±4、±8 | g | |
Bias Stability | Allan Variance | 30 | ug |
Bias repeatability | 1 | mg | |
vibration rectification error | <0.1 | g | |
Interface characteristic | |
Data update rate | 100Hz |
Start-Up time | <30s |
Interface | RS422 |
Bps | 460.8Kbps |
Physical characteristics | |
Operating Temperature | -40℃-+80℃ |
Storage Temperature | -50℃-+85℃ |
Size | 44.5*38.5*21.5mm |
Weight | 65g |
RS422 Protocol：Baud=460.8K, no parity, data=8 bits, stop=1; | |||
Byte offset | Name | Description | Size[bit] |
0 | Header | 0xDD | 8 |
1 | X-axis angular velocity | float (deg/s) | 32 |
5 | Y-axis angular velocity | float (deg/s) | 32 |
9 | Z-axis angular velocity | float (deg/s) | 32 |
13 | X-axis acceleration | float (g) | 32 |
17 | Y-axis acceleration | float (g) | 32 |
21 | Z-axis acceleration | float (g) | 32 |
25 | Pitch angle value | float (deg) | 32 |
29 | Roll angle value | float (deg) | 32 |
33 | Heading angle value |
float (deg) |
32 |
37 | Temperature of X axis gyro | float (℃) | 32 |
41 | Temperature of Y axis gyro | float (℃) | 32 |
45 | Temperature of Z axis gyro | float (℃) | 32 |
46 | Checksum | 1-44 byte summation | 8 |
No. | NAME | I/O | Description |
1 | TX- | O | Line Tx- RS422 Level |
2 | RX- | I | Line Rx- RS422 Level |
9 | Tx+ | O | Line Tx- RS422 Level |
10 | Rx+ | I | Line Rx+ RS422 Level |
8 | VSUP | I | +5VDC Power supply |
15 | GND | Power ground | |
3,4,5,6 | Factory use. No access to any level | ||
7,11,12, 13,14 | NC |
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