TUN Dun-Jie, LI Yuan, LI Dong-Sheng, LEI Xin, HE Meng-Han. Design and calibration of 3D Micro Tactile Probe based on MEMS Capacitance Sensor[J]. Editorial Office of Optics and Precision Engineering, 2013,21(12): 3087-3094
TUN Dun-Jie, LI Yuan, LI Dong-Sheng, LEI Xin, HE Meng-Han. Design and calibration of 3D Micro Tactile Probe based on MEMS Capacitance Sensor[J]. Editorial Office of Optics and Precision Engineering, 2013,21(12): 3087-3094 DOI: 10.3788/OPE.20132112.3087.
Design and calibration of 3D Micro Tactile Probe based on MEMS Capacitance Sensor
It is difficult to measure large size components in higher precision and a 3D mode in the micro-nano geometrical measurement. Therefore
a high resolution
small sized capacitance sensor was fabricated based on non-silicon Micro-electronic-mechanical system(MEMS) technology. By designing the packaging and weak-capacitance acquisition system of the sensor
a capacitance-based micro tactile probe was developed to measure the 3D dimensions in micro/nano scale. Then
a 3D micro displacement platform was designed to test and calibrate the probe. The macro-micro combination drive mode was used to design the stage and its moving range is 25 mm25 mm10 mm and the uniaxial resolution in 12 m range is 1 nm. Finally
the range
linearity
hysteresis and resolution of the probe were tested. Results show that the axial range is 4.5 m
the lateral range is greater than 5 m
the axial resolution and the lateral resolution of the probe are less than 10 nm and 25 nm
respectively. The experiments show that the probe has a good linearity and its advantages are simple structure
high resolution
small volume and low costs. The probe developed can be integrated to the nano measuring and positioning machine (NMM) to complete required measurement tasks in large ranges and sub-micrometer or nanometer level accuracy.
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references
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