摘要
一种新型的测试钢领钢丝圈摩擦力装置,该装置利用传感器原理,将钢领钢丝圈之间的摩擦力转化为悬臂梁的应变,粘贴在悬臂梁上的4个应变片相应产生变形,这四个应变片组成的电桥的输出电压就会发生变化,再将电压的变化量经过放大显示在动态应变仪上,最后对动态应变仪进行标定。在实验过程中,根据动态应变仪的读数,就可以得出即时的钢领钢丝圈摩擦力。从测试结果可以看出,该测试装置的精度可达0.5g。
A new equipment for measuring friction force between ring and traveler is introduced. The equipment changes the friction force into strain of the cantilever on which four strain gauges are stuck. The strain of cantilever results in varying resistance value of strain gauge and the variation of the resistance value influence output voltage which is amplified and shown on the dynamic strain indicator. Based on the data shown on the dynamic strain indicator which is demarcated, the friction force can be calculated out. From experimental result, it can be found that the precision of experimental result is about 0. 5 g.
出处
《传感技术学报》
EI
CAS
CSCD
北大核心
2006年第2期429-431,共3页
Chinese Journal of Sensors and Actuators
关键词
钢领
钢丝圈
传感器
应变
测试
ring
traveler
test
friction force
strain
sensor
