Product Overview
IMUP8 is a 6-degree-of-freedom MEMS inertial sensor module developed by Yuanji Technology. It provides standard output for triaxial gyroscope and accelerometer data.
High accuracy and resolution allow it to detect the slightest vibrations and tilts. The wide output range facilitates the detection of motion in highly dynamic conditions. Each module undergoes factory fine-tuning across an ultra-wide temperature range and independent calibration, ensuring stable operation in extreme operating conditions while maintaining consistent product performance.
Application：Aerial Surveying
Tactical-grade MEMS 6-DOF Inertial Sensor
AND-IMUP8 Product Manual
Features
Tactical-grade MEMS Gyroscope
● 0.5°/hr zero bias instability
● 0.1°/√hr angular random walk
● 30°/hr temperature drift (-40 to 85°C, ≤1°C/min @1°C)
Tactical-grade MEMS accelerometer
● 20μg bias instability
● 0.035m/s/√hr velocity random walk
● 1.Qmg temperature drift (-40°C to 85°C, ≤1°C/min @1σ)
Extensive precision temperature compensation
● Temperature compensation from -40°C to 85°C
● Precision temperature calibration
Independent Gimbal Calibration
● Independent calibration per module: sensitivity, zero bias, non-orthogonality error
● User-configurable interface for installation error calibration
High-Intensity Operating Tolerance
● Superior shock resistance: 2000g (0.5ms, half-sine, 3-axis)
● Superior vibration resistance: 10g (10–2kHz, 3-axis)
● Full-temperature stable operation: -40°C to 85°C
● 100% magnetic shielding
Real-time Flexible Digital Interface, Compact Form Factor
● Configurable output sampling rate up to 1kHz
● Supports serial interface 422
● Dimensions: 38.6 × 44.8 × 21.5mm, Weight: approx. 58g
1. Performance Parameters
| 1.1 Gyroscope performance indicators | ||||||||
| Parameters | Test Conditions/Remarks | Min | Typical value | Max | Unit | |||
| Measurement Range | ±300 | °/s | ||||||
| Zero Offset Instability | @25℃, ALLAN variance,1σ | 0.5 | °/hr | |||||
| Zero Offset Stability | 10-second smoothing | 2 | °/hr | |||||
| Zero Offset Repeatability | NS | 3 | °/hr | |||||
| Resolution | 0.0041 | °/s | ||||||
| Inter-axis Non-orthogonality | 0.02 | deg | ||||||
| Internal Low-pass Cutoff Frequency | Software-adjustable | 10 | 75 | Hz | ||||
| Sampling Rate | 1000 | 1000 | Hz | |||||
| Measurement Delay | 7.2 | ms | ||||||
| Zero Offset Drift Over Full Temperature Range | -40℃~85℃, <=1℃/min @1σ |
30 | °/hr | |||||
| Random Walk | @25℃, ALLAN variance,1σ | 0.1 | °/ √hr | |||||
| Scale Factor Error | 1.0 | ‰ | ||||||
| Scale Factor Non-linearity | 50 | ppm | ||||||
| Note 1: 1σ value of zero offset variation across the entire temperature range under a heating rate of 1°C per minute | ||||||||
| Note 2: IEEE standard, Allan variance curve provided under static 25°C conditions. | ||||||||
| 1.2 Accelerometer performance indicators | |||||||||
| Parameters | Test Conditions/Remarks | Min | Typical value | Max | Unit | ||||
| Measurement Range | ±6 | ±20 | g | ||||||
| Zero Offset Instability | @25℃, ALLAN variance,1σ | 20 (±6) |
μg | ||||||
| 25(± 20g) |
μg | ||||||||
| Zero Offset Stability | NS，10-second smoothing | 30(±6) | μg | ||||||
| 60(± 20g) |
μg | ||||||||
| Zero Offset Stability | NS | 20(±6) | μg | ||||||
| 40(± 20g) |
μg | ||||||||
| Resolution | 0.0816 | mg | |||||||
| Inter-axis Non-orthogonality | 0.02 | deg | |||||||
| Internal Low-pass Cutoff Frequency | Software-adjustable | 75 | Hz | ||||||
| Sampling Rate | 1000 | 1000 | Hz | ||||||
| Measurement Delay | 7.2 | ms | |||||||
| Zero Offset Drift Over Full Temperature Range | -40℃~85℃, <=1℃/min @1σ |
1.0 | mg | ||||||
| Random Walk | @25℃, ALLAN variance,1σ | 0.035(± 6) |
m/s/ √ hr |
||||||
| 0.04(± 20) |
m/s/ √ hr |
||||||||
| Note 1: 1σ value of zero offset variation across the entire temperature range under a heating rate of 1°C per minute | |||||||||
| Note 2: IEEE standard, Allan variance curve provided under static 25°C conditions. | |||||||||
3. Specifications
| 3.1 Maximum absolute value | |||||||||
| Parameters | Measurement level | Remarks | |||||||
| Storage Temperature | -55℃-90℃ | ||||||||
| VSUP to GND | -0.5-6.5V | ||||||||
| Operating temperature | -40-+85℃ | ||||||||
| RXD+/RXD-to GND | -7.5V~12.5V | Matching resistor 120Ω | |||||||
| RXD+to RXD- | ±6V | ||||||||
| TXD+/TXD-to GND | -7.5V~12.5V | ||||||||
| ExtTrig to GND | -0.3V-7V | ||||||||
| NRST to GND | -0.3V-7V | ||||||||
| DATA READY to GND | -0.3V-7V | ||||||||
3.2 EMC
| Test items | Testing standards | |||||||
| CE | Complies withEN55032 CISPR 16-2-1 | |||||||
| CS | Complies withEN55035 EN(IEC)61000-4-6 | |||||||
| EFT | Complies withEN55035 EN(IEC)61000-4-4 | |||||||
| RE | Complies withEN55032 CISPR 16-2-3 | |||||||
| RS | Complies withEN55035 EN(IEC)61000-4-3 | |||||||
| ESD | Complies withEN55035 EN(IEC)61000-4-2 | |||||||
3.3 Electrostatic Discharge (ESD) Level
| V(ESD) Electrostatic Discharge | Test Mode | Testing standards | Test Level | ||||||
| Contact Discharge | Complies with EN(IEC)61000-4-2 |
±8 KV | |||||||
| Air Discharge | ±15 KV | ||||||||
4. Electrical characteristics
| Parameters | Condition | Min | Typical Value | Max | Unit | ||
| Power Input | 4.5 | 5 | 5.5 | V | |||
| Power | 0.7 | W | |||||
| Storage Temperature | -55 | 90 | ℃ | ||||
| Operating Temperature | -40 | 85 | ℃ | ||||
| RS422 Input Resistance | 120 | Q | |||||
| RESET(NRST PIN) |
High | 2.3 | V | ||||
| Low | 0.6 | V | |||||
| NRST Internal Pull-Up Resistor’ | 4.7 | KΩ | |||||
| Data Ready | 3.3 | V | |||||
| ExtTrig | High | 2.3 | V | ||||
| Low | 0.6 | V | |||||
| Note: When the supply voltage exceeds 6V, the internal voltage protection circuit will disconnect the power supply and enter a reset state until the voltage returns to operating conditions, at which point normal operation will resume. | |||||||
| No.Pin | Pin NAme | Pin Description |
| 1 | 422_TX_Z | RS-422, TXD- |
| 2 | 422_RX_B | RS-422, RXD- |
| 3 | NC | Not connected |
| 4 | DATA READY | Data Ready |
| 5 | NRST | External hardware reset input, internally pulled up |
| 6 | GND | Signal ground |
| 7 | NC | Not connected |
| 8 | VIN | Power supply input, +5V input |
| 9 | 422_TX_Y | RS-422, TXD+ |
| 10 | 422_RX_A | RS-422, RXD+ |
| 11 | ExtTrig | External trigger pps |
| 12 | GND | Power supply ground |
| 13 | GND | Power supply ground |
| 14 | NC | Not connected |
| 15 | GND | Power supply ground |
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