【摘要】 介绍了一种新颖的金属线胀系数测量方法,该方法是利用霍尔位移传感器的位移与输出电压的线性关系,对位移量的测量能精确到千分之一毫米,从而实现对微小位移的测量。利用该方法通过对铁的线胀系数测量结果表明:此法操作过程简单,测量精度较高。更多还原

【Abstract】 This paper introduced a new method to measure metal linear expansion coefficient,this method mainly uses the linear relations between the displacement and voltage of the Hall sensor to measure the micro displacement.It can be accurate to one thousandth of a micrometer,test results are demonstrated:This method has a simpler operation and higher precision.更多还原