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ÐéÄâÒÇÆ÷ϵͳµÄÈí¼þ¿ª·¢Æ½Ì¨¼ò½é¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­9 2.3.1 ͼÐλ¯±à³ÌÓïÑÔLabVIEW¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­9 2.3.2 ÆäËüÐéÄâÒÇÆ÷Èí¼þ¿ª·¢Æ½Ì¨¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­13 µÚ3Õ ±äѹÆ÷µçÆø²ÎÊý²âÁ¿·½·¨Ñо¿¼°ÊÔÑé·½·¨¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­14 3.1 µçѹµçÁ÷µÄ²âÁ¿¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­ 3.1.1 ÓÐЧֵµÄ²âÁ¿¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­ 3.1.2 ·åÖµµÄ²âÁ¿¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­ 3.2 µç×èµÄ²âÁ¿¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­16 3.3 ζȵIJâÁ¿¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­17 3.4 г²¨²âÁ¿¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­18 3.4.1 г²¨·ÖÎö¶¨Òå¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­18 3.4.2 ¸µÁ¢Ò¶±ä»»¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­18 3.4.3 г²¨²âÁ¿×¢ÒâÊÂÏî¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­20 3.4.4 ±ê׼ƵÂÊ¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­23 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ÐźŵIJúÉú¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­31 4.3.2 FFT±ä»»¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­32 4.3.3 г²¨Ê§ÕæÓëƵÆ×·ÖÎö¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­33 4.3.4 ´Ø¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­34 4.3.5 Á÷³ÌͼÉè¼Æ¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­36 4.3.6 Ç°Ãæ°åÉè¼Æ¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­36 4.3.7 ³ÌÐòÉè¼Æ¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­37 4.4 ÎÂÉýÊÔÑé²âÁ¿Ä£¿éÉè¼Æ¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­37 4.4.1 Á÷³ÌͼÉè¼Æ¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­37 4.4.2 Ç°Ãæ°åÉè¼Æ¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­38 4.4.3 ³ÌÐòÉè¼Æ¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­38 4.5 Êý¾Ý²É¼¯Ä£¿é¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­39 4.5.1 ˳Ðò½á¹¹¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­39 4.5.2 Ç°Ãæ°åÉè¼Æ¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­39 4.5.3 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Òª£ºËæ×ÅÐÅÏ¢¿ÆѧµÄ·¢Õ¹£¬¼ÆËã»úºÍÊý¾Ý²É¼¯¼¼ÊõµÃµ½ÁËÔ½À´Ô½¹ã·ºµÄ¹Ø×¢£¬ÔÚʵ¼ÊÎÊÌâµÄ½â¾öÖз¢»ÓÁËÖØÒªµÄ×÷Óᣱ¾ÎÄÔËÓÃÐéÄâÒÇÆ÷Èí¼þÅäºÏPCI¿¨Ïà¹ØÀíÂۺͷ½·¨½â¾öʵ¼ÊÎÊÌâÖÐËùÃæÁٵIJ»¾«È·¡¢²»È·¶¨ÐÔÎÊÌâ¡£±¾¿ÎÌâÃûΪ¡°»ùÓÚÐéÄâÒÇÆ÷¼¼ÊõµÄ±äѹÆ÷µçÆø²ÎÊý²âÁ¿¡±£¬½áºÏ¿ÎÌâÐèÒª£¬Ö÷ÒªÑо¿µçÆø²âÁ¿µÄÈí¼þʵÏÖ¼°ÐźŲɼ¯¼¼Êõ¡£ÔÚ·ÖÎöÁ˹úÄÚÍâµçÆø²âÁ¿¼¼ÊõÑо¿ÏÖ×´µÄ»ù´¡ÉÏ£¬Ñ¡Ôñ¼«¾ß·¢Õ¹Ç±Á¦µÄÐéÄâÒÇÆ÷²âÁ¿¼¼Êõ£¬Öصã·ÅÔÚÐéÄâÒÇÆ÷µÄÈí¼þÉè¼ÆÉÏ¡£ÔÚÑо¿ÁËÐéÄâÒÇÆ÷µÄÈí¼þÓ¦Óúó£¬ÀûÓÃÆäÉè¼Æ¸÷²âÁ¿Ä£¿é£¬ÔÙ½«¸÷Ä£¿éÖÆ×÷³É×ÓÄ£¿é£¬ÀûÓò˵¥Ä£¿éʵÏÖ¶Ô¸÷×ÓÄ£¿éµÄµ÷Ó᣾ßÌå˵À´£¬±¾¿ÎÌâ¹²°üÀ¨Ëĸö²âÁ¿Ä£¿é£¬·Ö±ðÊÇ£ºµçѹ±È²âÁ¿£¬ÈÆ×éµç×è²âÁ¿£¬Ð³²¨·ÖÎö£¬ÎÂÉý²âÁ¿£¬Í¬Ê±»¹°üÀ¨ÁíÁ½¸öÄ£¿é£º²Ëµ¥Ä£¿éÒÔ¼°²É¼¯Í¨µÀÄ£¿é£¬ÓÃÒÔʵÏÖÄ£¿éµ÷ÓúÍÊý¾Ý²É¼¯¡£ ¹Ø¼ü´Ê£ºLabVIEW, ÐéÄâÒÇÆ÷, µçÆø²ÎÊý£¬²âÁ¿, ±äѹÆ÷ The Electric Measurement of Transformer Based on LabVIEW Virtual Instruments Abstract: With the development of science and technology, computer and DAQ technology have attracted more and more concerns from people and played an important role in problem- solving. In this thesis, the existing problem of inaccuracy and uncertainty shall be solved with the Virtual Instruments Software and the DAQ theory and methods.the title og mine is ¡®The Electric Measurement of Transformer Based on LabVIEW Virtual Instruments¡¯.Under the title, major efforts were put onto the researches of the Software and the DAQ technology.On the basis of the status quo of the researches on the electric measurement home and abroad, the topic of Virtual Instruments Measurement was well chosen because of its future potential of development. The focus was the software designing of the Virtual Instruments. After the research on the application of the Virtual Instruments Software, the result was helpful for the designing of each VI which later was made into subVI.In the designing of VI£¬the input of signals were realized by VI of temperature with DAQ technology. At last the transfer of subVI from the menu was achieved. Say in a specific way, this topic includes totally four measure the mold piece, respectively is: The electric voltage compare sub VI, rounding an electric resistance sub VI, the wave analysis sub VI, temperature measurement sub VI, including another two mold pieces at the same time:The menu sub VI and collect corridor sub VI, to carry out the mold piece and collect with data. Key Words: LabVIEW£» Virtual Instruments£»Electric Element; Measurement£» transformer