1-3型OPCM传感元件测量OM构件表面动态应力研究

Research on the Detection of the Dynamic Surface Stress of Orthotropic Material Structure with 1-3 OPCM Strain Sensing Units

研究了1-3型正交异性压电复合材料应变传感元件的构造及传感原理；推导了应用OPCM传感元件测量各向同性材料构件和正交异性材料构件表面应力的传感方程；对OPCM元件的动静态物 进行了测定；验证了这种传感元件在动态应力波检测中的优越性。

The orthotropic mechanical sensing unit is presented which is made from piezoele ctric composite material. It is capable of detecting the surface stresses of bot h isotropic and orthotropic material structure. The sensing equations of the sen sing units are deduced. The dynamic and static properties of the OPCM units are calibrated and its advantages are proved.