A small range torque sensor is an instrument used to measure small torque, usually used in fields such as electronic manufacturing, precision assembly, laboratory research and development that require high torque measurement accuracy.
The working principle of a small range torque sensor is mainly based on strain effect or magneto elastic effect. A strain gauge torque sensor is a device that attaches strain gauges to an elastic shaft. When the elastic shaft is subjected to torque, it undergoes elastic deformation, and the resistance value of the strain gauges changes accordingly. The magnitude of the torque is calculated by measuring the change in resistance value. Magnetoelastic torque sensors use the principle that the magnetic properties of ferromagnetic materials change when subjected to torque to measure torque.
feature
High precision: Small range torque sensors can accurately measure small torque changes, with an accuracy typically ranging from ± 0.1% FS to ± 0.5% FS, or even higher, meeting precision measurement requirements.
Small size and light weight: In order to meet the installation requirements of miniaturized equipment and precision instruments, small range torque sensors are generally small in size and light in weight, making them easy to integrate into various narrow spaces.
High response frequency: It can quickly respond to changes in torque, accurately measure dynamic torque in real time, and is suitable for situations where instantaneous changes in torque need to be monitored.
Good stability: It has good stability and can maintain reliable measurement performance in different working environments, with little influence from environmental factors such as temperature and humidity.
Multiple output signals: Common output signals include voltage signals, current signals, frequency signals, digital signals, etc., which can be easily connected to various data acquisition devices, controllers, or display instruments.
Application scenarios
Precision assembly: In the assembly of micro motors, sensors and other products, the assembly torque of rotor shafts, micro gears and other components can be monitored in real time to ensure assembly quality.
Precision testing of small torque equipment: used for daily calibration of small torque tools in the workshop, such as micro pneumatic torque wrenches, small electric screwdrivers, etc., to ensure the accuracy of tool torque.
Integration of detection equipment: It can be integrated as a core sensing component into detection equipment such as micro spring pre tension force detection and small connector fatigue torque testing.
Laboratory R&D testing: When universities or enterprise R&D departments conduct research on micro mechanical structures, micro robot joints, etc., they can be used to collect torque data, providing a basis for structural optimization.
Automotive parts testing: used in the assembly and fastening of automotive electronic components, to test the torque of screwdrivers, nut machines, etc., to ensure the reliability of automotive assembly.