Inertial Measure Unit Sensor Replace STIM210 Pure IMU 3 Axis
Gyro 3 Axis Accelerometer
The micro gyroscope assembly is composed of a three-axis gyroscope,
a temperature sensor, a signal processing board, a structure and
necessary software, and is used for measuring the
three-axis/two-axis angular rate of a carrier, and outputting three
angular rate data subjected to error compensation (including
temperature compensation, installation misalignment angle
compensation, nonlinear compensation and the like) through an
RS-422 serial port according to an agreed communication protocol.
1.1.1 Gyroscope specifications
- Measuring range: ± 400 °/s
- Zero-bias stability (@ Allan variance): ≤ 1 °/H
- Zero-bias stability (1s smooth, 1σ, room temperature): ≤ 10 °/H
- Zero bias error within full temperature range: ≤ 20 °/H
- Random walk: ≤ 0.2 °/√ H
- Zero-bias repeatability: ≤10°/h
- Zero bias acceleration sensitivity: ≤ 1 °/H/G
- Resolution: ≤ 0.001 °/s
- Scale factor nonlinearity: ≤ 100ppm
- Repeatability of scale factor: ≤ 100ppm
- Cross coupling: ≤ 0.1%
- Bandwidth: ≤250Hz
- Weight: (52 ± 5) G
1.1.2 Power supply requirements
- Supply voltage: (+ 5 ± 0.5) V (DC);
- Power supply current: working current < 0.3A;
1.1.3 Environmental adaptability
- Working temperature: (-45 ~ 85) ℃
- Storage temperature: (-55 ~ 105) ℃
- Vibration: 10 ~ 2000Hz, 6.06g
- Impact: 5000 G, 0.1ms
Outline drawing of micro gyroscope
| Node number | Node definition | Type | Explain |
| 1 | GND | SUPPLY | Power ground(4) |
| 2 | ExtTrig | INPUT | External Trigger Source(3) |
| 3 | VSUP | SUPPLY | Positive end of product power supply, DC regulated power supply +
5V |
| 4 | TxD+ | OUTPUT | Product RS422 output interface positive terminal |
| 5 | TxD- | OUTPUT | Product RS422 output interface negative terminal |
| 6 | CHASSIS | CHASSIS | Product mechanically isolated from power ground |
| 7 | GND | INPUT | Signal Ground(4) |
| 8 | NRST | INPUT | Reset signal(2) |
| 9 | RxD- | INPUT | Product RS422 receiving interface negative terminal |
| 10 | RxD+ | INPUT | Product RS422 receiving interface positive terminal |
Dimension
