作　　者： ; ;

机构地区： 茂名学院理学院

出　　处： 《信息技术》 2009年第6期45-46,50,共3页

摘　　要： 热敏电阻风速传感器的风速/电压曲线受到气体温度、湿度等的影响,呈现明显的非线性化。通过设计基于双恒流源的双臂电桥,与常用的惠斯登电桥进行比较。实验表明,双恒流源双臂电桥比惠斯登电桥能更好地补偿热敏电阻风速传感器的非线性关系,并获得较高的灵敏度。 It is impacted by the gas temperature and humidity that wind-speed/voltage curves of thermistor wind-speed sensor, showing clear of the nonlinear. Through the dual-arm bridge based on dual invariable-current source, compared with common Wheatstone bridge, the experiments show that dual-arm bridge based on dual invariable-current source can obtain better linear compensation and high sensitivity than Wheatstone bridge.

关 键 词： 双恒流源 惠斯登电桥 线性化 补偿

领　　域： [自动化与计算机技术] [自动化与计算机技术]