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
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.
［1］Lee C K. Diferential laser interferometer for nanometer displacement measurement［J］. AIAA Journal,1995, 33(9):1675-1680.
［2］Bowen D K,et al Sub-nanometer Transducer characterization by X-ray interferometry［J］. Precision Engineering, 1990, 12(3):165-173.
［3］Bobrof N. Recent advances in displacement measuring interferometry［J］. Meas Sci Technol,1995,4(9): 907-26.
［4］Brand U, Hermann K. A laser measurement system for the high-precision calibration of displacement transducers［J］. Meas Sci Technol, 1996, 7(6): 911-917.
［5］张宝铭.王春茹.高精度音圈电动机［J］.微电机,1995,28(1):50-51.
［6］张大卫.冯晓梅.音圈电机的技术原理［J］. 中北大学学报(自然科学版),2006,27(3):224-228.
［7］王晓远.杨光.闫杰.两种结构的光盘驱动器音圈电机性能分析［J］.微电机(伺服技术), 2005,38(2):7-9.
［8］黄声华.陶醒世.傅光洁.音圈电机的数学模型及仿真［J］.华中理工大学学报, 1996,24(S2):68-71.
2014, Vol. 35 
