Futek QTA141 miniature torque sensor

Futek has announced the QTA141 micro reaction torque sensor. With its miniature footprint, the sensor is designed to provide a precision torque measurement solution for miniature DC servo motors.

Traditional reaction torque sensors are more bulky, while the QTA141 measures only 22 mm in diameter and 10 mm in height. It additionally features a 10 mm diameter central hole, allowing a motor drive shaft and coupling to pass cleanly through the sensor. The significant reduction in size allows the unit to fit where most reaction torque sensors cannot.

Along with its small size, the product features ±0.5% non-linearity, ±0.5% hysteresis and ±0.1% non-repeatability, with metal foil strain gauges in both clockwise and counter-clockwise torque directions. Additionally, the device features a 1 Nm capacity that exceeds the stall torque of most 22 mm gear motors, a rated output of 1.3 mV/V and a safe overload capacity of 150%.