The SG210 Torque/Angle Sensor is a reference design torque sensor for proof-of-concept/evaluation/technology demonstration. This unique high-performance torque sensor based on Sensitivus’ SG3Q technology is ideal for a quick start in any torque sensor project.
For most e-bike applications the two main issues are a delay in cadence detection and an offset/zero-point stability in the torque sensor. This is how the SG210 Torque/Angle sensor reference design can help:
- The SG210 measures cadence based on inductive absolute angle measurements with 1 deg resolution, resulting in an ultrafast cadence response without the use of permanent magnets.
- Torque offset stability performance is market-leading due to the strain gauge technology used. Learn more about what makes our strain gauge-based technology so much better than magnetostrictive sensors for torque measurements on e-bikes.
The SG210 is not only suitable for e-bike applications but can also meet a wide range of requirements in other applications. SG210 has flexible couplings for input + output which means that it can easily be used for various test set-ups where torque and/or angle are needed.
Inside SG210 is the SG30 module set, which can be used as a convenient stepping stone to a custom sensor system.
Features
- Fast torque, angle, and cadence output
- 1-degree resolution absolute angle output
- Cadence output with very fast start/stop
- Contactless (inductive), zero friction, and magnet free
- Wireless digital link to rotating strain gauge sensor
- Low power consumption
- Cylindrical shaft ends for friction fit couplings
- Strong steel construction allows fixation
- Serial digital output
- Adjustable airgap for evaluation of wireless link and angle sensor
Specifications
- Rated torque (Full Scale, FS): ±300Nm
- Total torque offset error ≤0.6% of FS including hysteresis and temperature
- 360-degree angle output with 1-degree resolution
- Cadence output: ±220RPM with 1RPM resolution
- Low power consumption: 50mA/5V
- 1kSa/s sample rate (1ms sample period)
- Serial digital output (3.3V UART, 230400 baud, N81)
- 20mm diameter cylindrical shaft ends for friction fit couplings
- Strong steel construction, allows fixation for evaluation of bending cancellation
- Adjustable airgap for evaluation of wireless link and angle sensor
- For evaluation and prototyping use only. No certifications included.
Documentation
For more about the SG3Q technology used and to download even more information:
To understand why torque sensors based on strain gauges are superior to torque sensors based on the magnetostrictive/magnetoelastic principle in e-bike applications, read our white paper comparing the two.
Illustrations
The SG210 torque/angle sensor reference design as seen from the side.
(Photo on its way)
SENSITIVUS GAUGE