A contact probe using Michelson interferometers for CMMs

A high precision contact probe for a micro/nano-CMM was developed to detect the 3D motion of the stylus tip.This contact probe is composed of a stylus with a ball tip,a suspension plate and three displacement sensors.The stylus was connected to the suspension plate,which is suspended to the probe housing by three beryllium-copper leaf springs.A 3D translation of a ball tip causing by probing force would be transferred to three Z-displacements on the suspension plate.Displacement sensors,based on the classic model of Michelson interferometer,can measure nanoscale displacement on the plate.Calibrations with a nano measuring and positioning machine (NMM) proved the typical standard deviation was less than 20 nm for both the trigger and scanning modes.
CMM contact probe suspension plate Michelson interferometer
Chao-Min Huang Bo-Hsun Liao Kuang-Chao Fan
National Taiwan University, No.1, Sec. 4, Roosevelt Road, Taipei, Taiwan 106
国际会议
2012第八届精密工程测量和仪器仪表国际研讨会(ISPEMI2012)
成都
英文
1-8
2012-08-08(万方平台首次上网日期,不代表论文的发表时间)