1.Key Technical Specifications Measuring target: Dynamic rotary torque Measuring range: Optional from 0.1N·m to thousands of N·m Sensitive element: High-stability foil strain gauge Elastic body material: High-strength alloy steel Operating temperature: -20℃ ~ +85℃ with full zero and span temperature compensation Comprehensive accuracy: ±0.3%FS ~ ±0.8%FS Safe overload: 200%FS; ultimate breaking torque 400%FS Response time: ≤8ms fast dynamic torque response Excitation voltage: 3–12VDC Output signal: mV/V analog signal, I2C/CAN digital signal optional Protection grade: IP64, dustproof and splash resistant Service life: Over 15 million torsion cycle tests Structure form: Flange type, shaft type, miniature disc type for different installation space 2.Core Function Real-time collect torque signals during motor operation, transmission rotation and torsion durability tests, and transmit precise data to the main control unit. Provide torque benchmark data for motor calibration, reducer efficiency inspection and rotary equipment closed-loop control. Detect abnormal overload torque, send alarm signals to PLC and trigger automatic overload protection shutdown of equipment. Various structural sizes to match micro motors, industrial reducers and vehicle power systems. Low temperature drift and strong anti-interference performance, stable measurement under long-term continuous rotation. 3.Working Principle This sensor adopts foil strain gauge piezoresistive torsion detection technology: Rotational torque twists the alloy elastic body and creates tiny reversible torsional deformation. Strain gauges bonded on the elastic body produce resistance changes linearly corresponding to torque magnitude. Built-in full Wheatstone bridge converts resistance fluctuation into weak analog voltage signals. External signal conditioning circuit realizes temperature compensation, amplification and filtering, outputting standard torque signals for system acquisition and analysis. 4.Application Scope Applicable Equipment Micro motor test benches, industrial gearboxes, robot joint modules, new energy vehicle drive shafts, engine test stands Matching Components Automation PLC, torque display instrument, motor drive control module, vehicle domain controller Application Scenarios Motor output torque detection, transmission efficiency testing, robot joint torsion monitoring, vehicle power system performance calibration, torsion fatigue life testing of mechanical parts