应变片的选择对应变式位移传感器特性的影响  

Influence of choice of strain gauge on characteristic of strain-type displacement sensors

作　　者：卢兴国[1] 余晓芬[1] 黄亮[1] 

机构地区：[1]合肥工业大学仪器仪表学院,合肥230009

出　　处：《黑龙江科技学院学报》2005年第3期153-156,共4页Journal of Heilongjiang Institute of Science and Technology

基　　金：国家自然科学基金项目"纳米三坐标测量机关键技术的研究"(50175024)

摘　　要：为了能深入了解应变片的种类对应变式位移传感器特性尤其是在重复性、迟滞等静态方面的影响,选取电阻和半导体两种类型的应变片,并以4种不同结构形式的悬臂梁作为转换元件,进行实验研究。数据分析显示:在实验室环境下,选用半导体应变片可有效地减小重复性误差和迟滞误差,如配合一定结构形式的悬臂梁将获得更加理想的结果。The strain gauge is the most important component of the strain-type displacement sensors with a high accuracy and a high resolution. The factors such as the choice of the strain gauge influence the performance of sensors directly. In order to investigate the influence of the kind of the strain gauge on the sensors, two kinds of strain gauge were chosen. Experimental studies were made with different kinds of cantilevers as the transform component. The analysis of a series of data shows that choosing semiconductor strain gauge can reduce the repetition error and the hysteresis error in the laboratory circumstance. A better result may happen with the help of cantilever of definite structure.

关 键 词：应变片种类 应变式位移传感器 特性参数 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]