Compare inertial measurement units (IMU)
The Castor IMU models side by side.
| Castor IMU 1100Accel + Gyro + Inclinometer · RS422 | Castor GYR 1200Gyroscope-Only Module · RS422 | Castor IMU 1640Accel + Gyro · OEM SPI | |
|---|---|---|---|
| Sensor Suite | |||
| Sensors | Accelerometer, Gyroscope, Inclinometer | Gyroscope only | Accelerometer, Gyroscope |
| Gyro Bias InstabilityGYR 1200's single-axis-family design delivers the lowest gyro bias instability in the range | 0.7°/hr (typ.) | 0.6°/hr (typ.) (stronger) | 1°/hr (typ.) |
| Accelerometer Bias Instability | 0.02 mg (typ.) | — | 0.019 mg (typ.) |
| Update Rate | Up to 2000 Hz | Up to 2000 Hz | Up to 4250 Hz (stronger) |
| Communication & Interface | |||
| Interface | RS422 | RS422 | SPI (15 Mbps) |
| Data Format | Binary | Binary | Binary |
| Mounting | Standalone module | Standalone module | OEM PCB-mount (board-to-board connector) |
| Electrical & Power | |||
| Input Voltage | 4.5 to 5.5 V DC | 4.5 to 5.5 V DC | 3 to 3.6 V DC |
| Power Consumption | < 1.3 W | 1.2 W | < 1 W (stronger) |
| Mechanical & Environmental | |||
| Dimensions | 38.6 × 44.8 × 21.5 mm | 37.6 × 43.8 × 19 mm | 47 × 44 × 14 mm |
| Weight | 72 ± 3 g | 60 ± 4 g | 57 ± 3 g (stronger) |
| Mechanical ShockAll three qualified per MIL-STD-883F, Method 2002.4, Test Condition B | 1500 g / 0.5 ms half-sine | 1500 g / 0.5 ms half-sine | 1500 g / 0.5 ms half-sine |
| Operating Temperature | −40°C to +85°C | −40°C to +85°C | −40°C to +71°C |
| Ingress Protection | IP65 | IP65 | IP65 |
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