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| Design and Realization of Contact Profilometer of Linear Controllable Measuring Force |
| SUN Yan-ling1,2,CHANG Su-ping3 |
1. Hubei University of Arts and Science, Xiangyang, Hubei 441053;
2. The Co-Innovation Center of Hubei Province of Auto Parts Manufacture Equipment Digitizing, Xiangyang, Hubei 441053;
3. Huazhong University of Science and Technology, Wuhan, Hubei 430074 |
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Abstract The traditional measuring rod is redesigned to arched structure with a gravity center adjustment device, the lever force model and the mathematical model of the measuring force are derived. The mechanical relations between the measuring rod and the surface are simplified. A voice coil motor is added into the measuring system to control the measuring force. By adjusting the current in the coil of the voice coil motor in real time, the measuring force can be controlled. The relations between the control parameters and the voice coil motor current are derived . A simple method to determine the parameters is verified by experiments.
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2014, Vol. 35 
