晕厥防治裤压力传感器信号放大电路设计

Design of Signal Amplifi cation Circuit for Pressure Sensor of the Prevention and Treatment Trousers for Vasovagal Syncope

目的设计晕厥防治裤的压力传感器放大电路,以检测治疗压力。方法根据压力检测、精度、尺寸、成本等需求,选择合适的压力传感器,设计相应的具有滤波、信号隔离、信号放大功能的放大电路。结果经过该放大电路后的信号输出稳定、干扰小。结论该放大电路可用于测量晕厥防治裤的治疗压力。

Objective To design a signal amplification circuit for the pressure sensor of the prevention and treatment trousers for vasovagal syncope in order to test the therapy pressure. Methods The suitable pressure sensor was selected according to the requirements of pressure testing, accuracy, size and cost of the equipment, and then the corresponding signal amplification circuit with several functions including filtering, signal isolation and signal amplification was designed. Results The output signals which were magnified by the circuit were steady and the interference of these output signals was little. Conclusion The signal amplification circuit can be used to test the therapy pressure of the prevention and treatment trousers for vasovagal syncope.