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《Ordnace Industry Automation》 2002-03
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The Basal Principium of WB Intelligent Electrical Transmitter and Its Application

CHEN Shi (Dept. Sensor Technology, Southwest Research Institute of Automation, Mianyang 621000, China)  
WB intelligent electrical transmitter is divided into single-phase and three-phase two classes. The transmitter is consisted of three parts: isolated sensing measure, DSP data processing and communication control, Works with single power or none-power, and DIN modularization structure is adopted. Because of the technologies of analog signal isolation, None-cross zero AC sample, digital filtering, digital discrepancy compensating, RS-485 communication interface etc are adopted, full isolation of the disturbance from field, scaling of data acquisition, the virtual value and communication of network are realized. At one time,the basal format of the communication protocol of the intelligent electric transmitter is discussed, taking example for the application of the transmitter in power-station auto-surveillance and measure system, its application is introduced.
【Fund】: 863/CIMS目标产品(863-511-820-041)
【CateGory Index】: TP212.6
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