ѹÃôµç×è¼°ÆøÌå·Åµç¹ÜµÄÐÔÄܽéÉÜ

ͨѶÉ豸¼°¼ÒÓõçÆ÷µÈÆóÒµÊÇÔ½À´Ô½¶à£¬µç×ÓÉ豸µÄСÐÍ»¯¡¢ÖÇÄÜ»¯ºÍ¸ßÃܶȼ¯³É»¯£¬Êǵ±½ñ¿Æ¼¼·¢Õ¹µÄ±êÖ¾£¬Ó¦ÓÃÔÚ²»Í¬µçÆøÉ豸ÉϵĹýµçѹ±£»¤ÔªÆ÷¼þÆ·ÖÖÒ²Ô½À´Ô½¶à¡¢¶ø¼¼ÊõÓë¼¼²ÎÊýÔòÊÇÔ½À´Ô½Ï¸»¯ºÍ¿Á¿Ì¡£ÈçºÎÑ¡¹ºÒ»¸ö¸üÊʺÏ¡¢¸ü°²È«µÄ¡¢¶ÔÉ豸Äܹ»½øÐÐÓÐЧ±£»¤µÄÔª¼þ£¿

ÀËÓ¿ÎüÊÕÆ÷£¨¹ýµçѹ±£»¤Ôª¼þ£©µÄÐÔÄÜÓë·ÖÎö

ÔÚÓõçÉ豸ÖÐ×îÔçÓ¦ÓõÄÀËÓ¿ÎüÊÕÆ÷ÊDzÉÓüâ¶Ë·ÅµçÔ­Àí£¬ÀûÓöþ»òÈý¸ö½ðÊôÕëµÄ¿ÕÆø¼ä϶¶ÔµØ·Åµç£¬Ð¹·ÅÏß·ÉÏ¿ÉÄÜ·¢Éú¸ÐÓ¦µçѹµÄ¹ýµçѹ±£»¤Æ÷¼þ£¬ÕâÖÖÆ÷¼þµÄ·Åµçµçѹµã¿ÉÄÜ»áËæ»·¾³µÄζÈ¡¢Æøѹ¡¢Êª¶ÈµÄ±ä»¯¶ø·¢ÉúƯÒÆ¡£Ëæ×ÅÉç»áÐèÇóºÍ¼¼Êõ·¢Õ¹£¬¾ßÓÐÔì¼ÛµÍÁ®¡¢°²×°¼òµ¥¡¢·Åµçµçѹµã׼ȷµÄÑõ»¯Ð¿Ñ¹Ãôµç×裬Öð½¥´úÌæÁË´«Í³µÄÓмä϶·Åµç±£»¤Æ÷¼þ¡£µ«Ñ¹Ãôµç×è×ÔÉíµÄ©µç»áË湤×÷ʱ¼ä¶øÔö¼Ó£¬Òò©µçÔÚÔª¼þÉϲúÉúµÄÈÈÁ¿ÍùÍù»áʹԪ¼þ±íÃæ»ý³¾£¬³¤Ê±¼äµÄÈȶÔÁ÷ÆøÌå´øÀ´»ý³¾£¬¶¼»áÔì³Éµç·°å¾øԵϵÊýϽµ£¬Õâ¿ÉÄÜ»á´øÀ´ÔÖÄÑÐԵĺó¹û¡£Ñ¹Ãôµç×èÔÚÊÍ·ÅÀËÓ¿ÄÜÁ¿Ê±£¬ÓÉÓÚÔª¼þй·ÅͨµÀµç×費ΪÁ㣬ÔÚµçÁ÷ÈÈЧӦµÄ×÷ÓÃÏ£¨P=I2×R£©ÍùÍùÔì³ÉÔª¼þµÄÕ¨ÁÑ£¬240—400nsµÄ·Åµç·´Ó¦Ëٶȣ¬×÷Ϊ±£»¤¸ß¶È¼¯³É»¯µÄµç×ÓÉ豸ÉÔÏÔÂýÁËһЩ¡£

ΪÃô¸ÐÉ豸Ìṩ¿ìËÙ±£»¤µÄ°ëµ¼Ìå¹ÌÌå·Åµç¹Ü£¬¶ÔÀËÓ¿³å»÷µçѹµÄ·´Ó¦ËٶȿÉÒÔµÍÓÚ1ns¡£¹ÌÌå·Åµç¹ÜµÄ·´Ó¦Êý¶ÈËäȻҪ±ÈѹÃôµç×è¿ì£¬µ«°ëµ¼Ìå²ÄÁÏÒò¹ýÔØÄÜÁ¦²î£¬²»Ò×ÖÆ×÷´óÈÝÁ¿µÄÀËÓ¿±£»¤Ôª¼þ£¬¹ýÔØ»á¶ÔÀËÓ¿±£»¤Ôª¼þÔì³É²»¿ÉÄæµÄËð»Ù£¨Äã¸ù±¾²»¿ÉÄÜÔ¤²â¿ÉÄÜÒªÊͷŵÄÄÜÁ¿Öµ£¬Ö»Äܾ¡Á¿Ôö¼ÓÔª¼þÄÍÊܵÄÈßÓàÁ¿£©¡£Ôö´óÀËÓ¿±£»¤Ôª¼þ·ÅµçÄÍÊÜÁ¿£¬°ëµ¼Ìå¹ÌÌå·Åµç¹ÜµÄµçÈÝÒ²½«³ÉÕý±ÈÔö¼Ó£¬Õâ´ó´óÏÞÖÆÁË°ëµ¼Ìå¹ÌÌå·Åµç¹ÜµÄÓ¦Óû·¾³¡£
 

Õë¶ÔÊг¡¼°¼¼ÊõÐèÇ󣬹ú¼ÊÉϲÉÓøĽøÐÍÆøÌå·ÅµçÔª¼þ½ÏºÃµÄ½â¾öÉÏÊöÎÊÌ⣬ÐÂÐÍÆøÌå·Åµç¹ÜÔª¼þÖеĸ´ºÏÆøÌåʹԪ¼þ¶ÔÀËÓ¿µçѹ·´Ó¦Êý¶È¿ì£¨≤30 ns£©¡¢·Åµçµã¸ü¾«È·£¬Ôª¼þÎüÊÕÀËÓ¿µçѹÄÜÁ¿Ê±£¬ÄÜÁ¿ÒÔ¹âµÄ·½Ê½¸ß¼¶ÄÜÊÍ·Å£¬²úÈÈÁ¿µÍ£¬ÓëͬÑù·ÅµçÄÍÁ¿µÄѹÃôµç×èÏà±È£¬Ìå»ýÖ»ÓÐѹÃôµç×èµÄ1/6—1/8´óС¡£

ÆøÌå·Åµç¹ÜµÄÌصãÊÇÔª¼þÔÚδ·Åµçʱ£¬Ôª¼þÖеĸ´ºÏÆøÌåδ±»µçÀ룬²»µ¼µç£¬Ôª¼þµÄ¾øÔµµç×è´óÓÚ1000MΩ£¬µ±Ôª¼þ¹¤×÷ʱ£¬ÓÉÓÚÆøÌå±»µçÀëºóΪµ¼Ì壬µç×èÂʺܵÍ£¬ÔÚÕâ¸ö¹ý³ÌÀïÔª¼þÖÐÆøÌå²»¶ÏµÄÖظ´µçÀë—¸´ºÏ£¬µçÀëʱÔÚÎüÊÕÄÜÁ¿£¬¸´ºÏʱͨ¹ý·¢¹âÊÍ·ÅÄÜÁ¿£¬Ôª¼þÖÐͨ¹ýµÄµçÁ÷Ô½´ó£¬Ôª¼þÖеÄÆøÌåά³ÖµçÀëµÄʱ¼äÔ½³¤£¬Ôª¼þ¶ÔÍâµÈЧµÄµç×èԽС£¬Ôª¼þÁ½¶Ëѹ½µÔ½µÍ£¬ÆøÌå·Åµç¹Ü¾ßÓиº×èÌØÐÔ¡£

¼È¾ßÓÐÆøÌå·ÅµçÔª¼þ²»Â©µç¡¢·Åµçʱ²úÈȵÍ¡¢·´Ó¦ËٶȿìµÄÌص㣬ÓÖÏóѹÃôµç×èѹÃôµç×èÄÇÑùÎÞÐøÁ÷ÌØÐÔ£¬¿ÉÖ±½Ó´úÌæѹÃôµç×èΪÓõçÉ豸Ìṩ¸ü¿ì¡¢¸üºÃµÄ°²È«±£»¤£¬ÊÇѹÃôµç×èµÄÀíÏëÌæ´ú²úÆ·¡£