01 · AttitudeSMT · Reference
IM19
The original tilt-compensation reference
Units shipped 100K+Roll/Pitch dyn 0.05° 2σPatents WW
03 · Attitude · Industrial · Hardened
IM23-TCB
Screw-mount IMU for harsh environments
Mechanically hardened 25 × 25 × 5.9 mm successor to IM19, built for the harshest industrial environments. Factory-calibrated temperature compensation across the full operating range, dynamic pitch & roll to 0.01° (2σ), gyro bias instability of 0.5 °/h, and 1000 Hz configurable output.
Roll/Pitch dyn 0.01° 2σGyro BI 0.5 °/hHeight 5.9 mm
Overview
About the IM23-TCB
IM23-TCB is a miniaturized (25 × 25 × 5.9 mm) inertial measurement unit (IMU) and controller designed by FEYMAN. It is built on the foundation of the IM19 module, which has been deployed in a wide range of industrial applications with over 100K units (by 2023) in active use.
IM23 is a mechanically hardened version (screw mounting) of the IM19 (SMT), designed to meet the demands of the harshest industrial environments. With a built-in 9-axis sensor and a powerful processor, it enables tilt measurement, AHRS, RTK imaging or laser surveys, agricultural machine control and pan-tilt. The device is factory-calibrated across the whole temperature range.
Key features
- 3-axis gyroscope, 3-axis accelerometer and 3-axis magnetometer
- Temperature compensation and calibration
- Miniaturization, adapting to a variety of complex scenarios
- Shock-resistant
- AHRS & integrated navigation algorithm (optional)
Applications
- Survey
- Agriculture
- Construction
Specifications
IM23-TCB technical specifications
| Output range | ±490 deg/s |
|---|---|
| Angular random walk | 0.025 deg/√h |
| Scale factor nonlinearity | 200 ppm |
| G-sensitivity | 1 deg/h/g |
| Bandwidth | 70 Hz |
| Output range | ±8 g |
|---|---|
| Bias repeatability (1σ) | 0.5 mg |
| Velocity random walk | 0.03 m/s/√h |
| Scale factor nonlinearity | 500 ppm |
| Bandwidth | 70 Hz |
| Output range | ±500 µT |
|---|---|
| Resolution | 0.15 µT |
| Temperature drift | 0.027 µT/°C |
| Heading (INS) | 0.08° (2σ) |
|---|---|
| Roll / Pitch (INS) | 0.01° (2σ) |
| Heading (AHRS) | 0.5° |
| Roll / Pitch (AHRS) | 0.05° |
| Supply voltage | 3.3 ± 0.1 V |
|---|---|
| Typical power consumption | ≤ 0.85 W |
| Size | 25.0 × 25.0 × 5.9 mm |
| Operating temperature | −40 °C ~ +85 °C |
| Starting time | < 1 s |
| Shock tolerance | 5000 g @ 0.1 ms |
| Vibration | 20 Hz ~ 2000 Hz, 6.06 g |
| Output frequency | 1000 Hz max |
| FPC interface | 16P FPC, 0.5 mm spacing |
Source: IM23-TCB Product Datasheet, V1.6 (2026-08-09). Specifications are subject to change — always confirm against the latest datasheet before designing a module into your product. Request the current revision →