摘要
利用电容传感器设计了杨氏模量测量仪.弹性材料在重物作用下长度发生微小变化,导致电容两极板间的电容变化,通过搭建电容传感电路,将电容变化转换为电压变化.基于电容传感的杨氏模量测量仪实现了力学量的电学测量.
The measuring method of the Young modulus of elastic material based on condenser sensor was proposed. The tiny change in capacitance between the two electrodes was brought about from the minielongation of elastic material employing a heavy object. The capacitance change could be transformed to the change of voltage by using the condenser sensor circuit. Such a Young modulus measuring apparatus based on the condenser sensor could realize the electric measurement of the dy namical variable.
出处
《物理实验》
2013年第6期6-8,13,共4页
Physics Experimentation
基金
国家自然科学基金资助(No.61004130)
中国博士后科学基金资助(No.2012M510925
No.2013M530145)
中央高校基础科研业务费资助(No.HEUCF2013)
关键词
杨氏模量
电容传感器
数据采集
Young modulus condenser sensor data acquisition
