| Electric energy is the most important energy, its application has caused great changes in the production technology. In the modem society electric energy has been applied to the various fields of the society production and the subsistence. Watt-hour meter is the important means of energy measurement and economic accounts. Its nicety directly relates the economy benefit of the Country and the users. To insure the watt-hour meter抯 veracity, the National Measurement Institute is in charge of the watt-hour meter抯 calibrating work. The precision grade and the operating mode of the watt-hour meter抯 calibrator have great affect to the watt-hour meter抯 calibrating work.?.02 grade watt-hour meter calibrator?is fit for the province measurement technology institution, electric power measurement, scientific research department etc as the measurement standard. The kind of the calibrator isn抰 yet made in our country, and with the rapid development of the instrument industry, instrumental develop is favor to the direction of the miniaturinzation, great information, programmable control. So the article discusses the basic research of the?.02 grade three-phase programmable watt-hour meter calibrator?in the condition of the rapid development of the LCD technology and the abundant software and hardware resources. In the control of the PC, the calibrator realizes the programmable control to calibrate meter and makes use of the standard meter抯 LCD instead of the traditional calibrator抯 scout instrument. The software of the PC should run on the Windows, and it has the characteristic: graphic user interface, more visible, sweet and convenient handle. The adoptive LCD is SED-1330 LCD controller of Japanese SEIKO EPSON Inc. and the DMF5O 1 74NB-FW lattice graphics mode liquid crystal module of Japanese OPTREX Inc. .Its software design is realized in the 8031 SCM(single chip machine), having the characteristic of the Chinese menu hint and the great display information. |
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