In order to avoid troublesome wiring, wireless sensors have been the research hotspot in recent years and have successfully developed wireless sensors. Torque sensor has always been the industry's most commonly used sensors, but the wireless torque sensor has not yet appeared, most of the wireless torque sensor on the market can not meet customer needs, the design of high-performance wireless torque sensor is imminent.

High-performance wireless torque sensor The sensor and wireless communication technology together to achieve the wireless data transmission. The electrical signal of the torque is amplified by the signal processing circuit controlled by the one-chip computer. After A / D conversion, the digital code collected by the encoder is transmitted to the transmitting module for transmission. Receive module receives the data, the decoder will transfer the data to the microcontroller, the LED display of the resulting torque data value. Sensor data acquisition and transmission circuit consists of a torque sensor, signal processing part, microcontroller and wireless transmitter circuit. The torque sensor transmits the electrical strain signal generated by the strain gage to the signal processing circuit. Signal processing part of the sensor analog signal extraction amplification, and analog / digital conversion. Microprocessor is responsible for controlling the work of all parts of the system, and digital signal processing. Under the control of the microprocessor, the wireless transmitting circuit encodes and processes the collected information data by the encoder and transmits it with the transmitting module. Achieve wireless transmission.

Anti-interference ability and accuracy have always been the two important technical parameters of the sensor. In the process of designing the high-performance wireless torque sensor, a series of anti-interference measures have been taken in the design and manufacture to reduce the influence of the external disturbance signal. For example, The amplifier's shield reduces the effects of outside interference signals. Try not to form a loop in the wiring, such as copper on the circuit board. The test shows that the wireless torque sensor high reliability, anti-interference ability, it is worth promoting.

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