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Frontiers of Mechanical Engineering >> 2010, Volume 5, Issue 3 doi: 10.1007/s11465-010-0021-1

Remote calibration system for frequency based on in-place benchmark

School of Mechanical & Automobile Engineering, South China University of Technology, Guangzhou 510640, China;

Available online: 2010-09-05

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According to the deficiencies of remote calibration mode based on material object reference, a new model of a remote calibration system for frequency based on in-place benchmark is introduced, which is made of a calibration subsystem on the spot and a remote management subsystem. The key technology of some key problems for the remote calibration system is particularly discussed, including the time and frequency benchmark receiving module based on global positioning system (GPS), frequency comparison based on a phase method, frequency division based on dual high-frequency phase locked loop (PLL), and remote calibration based on the web. The results show that the system possesses some characteristics, such as high precision, good versatility, and no limitation of time and place.

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