Product overview
The BWSENSING BW-MINS400 is a packaged micro inertial navigation unit for attitude sensing in UAVs and other vehicle or stabilization applications. Its physical envelope measures 60 mm long, 59 mm wide and 29 mm high, defining the space required for the packaged component. The sensing specifications cover a gyroscope and an accelerometer, with acceleration measurement on the X, Y and Z axes. Integration options include a 9–36V DC supply and selectable RS232, RS485 or TTL output.
Attitude performance is specified separately for motion and static use: dynamic accuracy is 0.2°, while static accuracy is 0.01°. Pitch measurement spans ±90º and roll spans ±180º, with heading retention specified at 0.1°/min. The temperature range is -40°C to +85°C with temperature compensation, supported by bias tracking and Kalman filtering. Accelerometer bias stability depends on the stated measurement interval: at 25°C and 1σ, it is 0.001mg over 100s and 0.01mg over 10s.
Specifications
| Specification | Value & conditions |
|---|---|
| Manufacturer and model | BWSENSING BW-MINS400 high-precision micro inertial navigation unit |
| Dynamic attitude accuracy | 0.2° |
| Static attitude accuracy | 0.01° |
| Attitude measurement range | Pitch ±90º; roll ±180º |
| Heading retention accuracy | 0.1°/min |
| Gyroscope resolution | 0.01°/sec |
| Gyroscope bias stability | 10°/hAcross the full temperature range; 10s, 1σ. |
| Angular random walk coefficient | Less than 0.1 °/√h |
| Accelerometer measurement range | ±1.8 gX, Y and Z axes. |
| Accelerometer bias stability at 100s | 0.001mg25°C, 100s, 1σ. |
| Accelerometer bias stability at 10s | 0.01mg25°C, 10s, 1σ. |
| Supply voltage | 9–36V DC |
| Interface options | RS232, RS485 or TTLSelectable output interface. |
| Temperature range | -40°C to +85°CWith temperature compensation. |
| Dimensions | L60 × W59 × H29 mmPackaged product. |
| Bias tracking | Special bias-tracking algorithm for drift elimination |
| Filtering | High-performance Kalman filtering algorithm |
| Application areas | Unmanned boats and underwater vehicles; robotics; platform stabilization; large vessels; automated guided vehicles; automated and unmanned driving; special-purpose vehicles; UAVs |
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