Miniature Torque Sensors

The easiest way to measure torque depends on your application. For static or reaction torque, a reaction torque sensor mounted in-line is straightforward. For rotating shafts, a wireless torque sensor like the SYNTH or BT4000 Series eliminates cabling complexity. Wireless sensors offer plug-and-play installation, removing the need for slip rings, rotary transformers, or power supply wiring.

Reaction torque sensors measure static or near-static torque without rotating — they are fixed in place and measure the torque reacted through a structure. Rotary torque sensors are designed to rotate with a shaft and measure dynamic, in-line torque during operation. The choice depends on whether your application involves a stationary test fixture or a continuously rotating drivetrain component.

A dual-range torque sensor, like the T171-231, can switch between two measurement ranges — with ratios up to 5:1 — within a single compact unit. This is ideal when your test application spans a wide torque range, such as calibrating torque wrenches at both low and high settings, eliminating the need for two separate sensors and reducing equipment costs.

Yes. SensorData's BT4000 and SYNTH wireless torque sensors are specifically designed for high-vibration environments. The BT4000 uses Bluetooth with induction power to eliminate rotor cable damage from vibration. The SYNTH series is immune to EMI, ESD, and nearby metal interference, making both series reliable choices for automotive road testing, engine test cells, and other vibration-intensive applications.

SensorData miniature torque sensors cover a wide speed range. The T258 high-speed rotating sensor is rated up to 35,000 RPM, the T260 operates up to 20,000 RPM with a 35,000 RPM option, and the BT4000 and SYNTH wireless sensors support standard rotating speeds up to 20,000 RPM. Reaction sensors operate at 0 RPM for static applications.

Yes. The SYNTH Wireless Rotary Torque Sensor is intrinsically safe and certified for use in ZONE 1 DIV 1 explosive environments. It operates on a long-life Lithium Ion battery and transmits data wirelessly over 500 feet, making it suitable for oil drilling, petroleum mining, and other flammable or caustic environments where wired sensors pose safety risks.