ÌâÄ¿ÄÚÈÝ

£¨2010?Õ¢±±Çø¶þÄ££©µÚ29½ì°ÂÔË»áÒÑÓÚ2008Äê8ÔÂ8ÈÕÔÚ±±¾©¾ÙÐУ¬ÌøË®±ÈÈüÊÇÎÒ¹úµÄ´«Í³ÓÅÊÆÏîÄ¿£®Ä³Ô˶¯Ô±ÕýÔÚ½øÐÐ10mÌø̨ÌøË®±ÈÈü£¬ÈôÖ»Ñо¿Ô˶¯Ô±µÄÏÂÂä¹ý³Ì£¬ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ£¨¡¡¡¡£©
·ÖÎö£ºÎïÌåÄܲ»ÄÜ¿´³ÉÖʵ㿴ÎïÌåµÄÐÎ×´´óСÔÚËùÑо¿µÄÎÊÌâÖÐÄܲ»ÄܺöÂÔ£»Ô˶¯Ô±ÔÚÏÂÂäµÄ¹ý³Ì×öÔȼÓËÙÖ±ÏßÔ˶¯£¬¸ù¾ÝÔȱäËÙÖ±ÏßÔ˶¯µÄ¹æÂɽøÐÐÅжϼ´¿É£®
½â´ð£º½â£ºA¡¢Ñо¿Ô˶¯Ô±µÄ¼¼Êõ¶¯×÷£¬Ô˶¯Ô±µÄÐÎ×´´óС²»ÄܺöÂÔ£¬¹ÊÔ˶¯Ô±²»ÄÜ¿´³ÉÖʵ㣮¹ÊA´íÎó£®
B¡¢Ô˶¯Ô±ÔÚÏÂÂäµÄ¹ý³Ì×öÔȼÓËÙÖ±ÏßÔ˶¯£¬ÒÔ×Ô¼ºÎª²Î¿¼Ïµ£¬Ë®Ãæ×öÔȼÓËÙÉÏÉý£®¹ÊB´íÎó£®
C¡¢Ô˶¯Ô±ÏÂÂäµÄ¹ý³ÌÖУ¬ËÙ¶ÈÔ½À´Ô½´ó£¬ºóÒ»°ëʱ¼äÄÚµÄλÒƱÈÇ°Ò»°ëʱ¼äÄÚλÒƴ󣬸ù¾Ýh=
1
2
gt2£¬
Ç°Ò»°ëʱ¼äÄÚµÄλÒÆÊÇÕû¸öλÒÆ
1
4
£¬ËùÒÔÇ°Ò»°ëʱ¼äÄÚµÄλÒÆÓëºóÒ»°ëʱ¼äÄÚµÄλÒƱÈΪ1£º3£®¹ÊC´íÎó£®
D¡¢ËÙ¶ÈÔ½À´Ô½¿ì£¬Ç°Ò»°ëλÒÆÄÚËùÓõÄʱ¼ä³¤£¬ºóÒ»°ëλÒÆÄÚËùÓõÄʱ¼ä¶Ì£®¹ÊC´íÎó£¬DÕýÈ·£®
¹ÊÑ¡D£®
µãÆÀ£º½â¾ö±¾ÌâµÄ¹Ø¼üÕÆÎÕÎïÌåÄÜ¿´³ÉÖʵãµÄÌõ¼þ£¬ÒÔ¼°ÖªµÀÌøË®Ô˶¯Ô±ÔÚÏÂÂäµÄ¹ý³ÌÖÐËÙ¶ÈÔ½À´Ô½´ó£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿
£¨2010?Õ¢±±Çø¶þÄ££©Ó°ÏìÎïÖʲÄÁϵç×èÂʵÄÒòËغܶ࣬һ°ã½ðÊô²ÄÁϵĵç×èÂÊËæζȵÄÉý¸ß¶øÔö´ó£¬°ëµ¼Ìå²ÄÁϵĵç×èÂÊÔòËæζȵÄÉý¸ß¶ø¼õС£¬PTCÔª¼þÓÉÓÚ²ÄÁϵÄÔ­ÒòÓÐÌØÊâµÄµ¼µçÌØÐÔ£®

£¨1£©Èçͼ£¨¼×£©ÊÇÓÉij½ðÊô²ÄÁÏÖƳɵĵç×èRËæÉãÊÏζÈt±ä»¯µÄͼÏó£¬ÈôÓøõç×èÓëµç³Ø£¨µç¶¯ÊÆE=1.5V£¬ÄÚ×è²»¼Æ£©¡¢µçÁ÷±í£¨Á¿³ÌΪ5mA¡¢ÄÚ×è²»¼Æ£©¡¢µç×èÏäR¡ä´®ÁªÆðÀ´£¬Á¬½Ó³ÉÈçͼ£¨ÒÒ£©ËùʾµÄµç·£¬Óøõç×è×ö²âÎÂ̽ͷ£¬°ÑµçÁ÷±íµÄµçÁ÷¿Ì¶È¸ÄΪÏàÓ¦µÄζȿ̶ȣ¬¾ÍµÃµ½ÁËÒ»¸ö¼òµ¥µÄ¡°½ðÊôµç×èζȼơ±£®
¢ÙµçÁ÷¿Ì¶È½Ï´ó´¦¶ÔÓ¦µÄζȿ̶È
½ÏС
½ÏС
£®£¨Ìî¡°½Ï´ó¡±»ò¡°½ÏС¡±£©
¢ÚÈôµç×èÏä×èÖµR¡ä=150¦¸£¬ÔÚ±ûͼÖбê³ö¿Õ¸ñ´¦¶ÔÓ¦µÄζÈÊýֵΪ
50
50
¡æ£®
£¨2£©Ò»ÓÉPTCÔª¼þ×ö³ÉµÄ¼ÓÈÈÆ÷£¬Æä
1R
-t
µÄ¹ØϵÈçͼ£¨¶¡£©Ëùʾ£®ÒÑÖªËüÏòËÄÖÜÉ¢ÈȵŦÂÊΪPQ=0.1£¨t-t0£©Íߣ¬ÆäÖÐt£¨µ¥Î»Îª¡æ£©Îª¼ÓÈÈÆ÷µÄζȣ¬t0ΪÊÒΣ¨±¾ÌâÈ¡20¡æ£©£®µ±¼ÓÈÈÆ÷²úÉúµÄÈȹ¦ÂÊPRºÍÏòËÄÖÜÉ¢ÈȵŦÂÊPQÏàµÈʱ¼ÓÈÈÆ÷ζȱ£³ÖÎȶ¨£®ÏÖ½«´Ë¼ÓÈÈÆ÷½Óµ½200VµÄµçÔ´ÉÏ£¨ÄÚ×è²»¼Æ£©£¬Ôò¼ÓÈÈÆ÷¹¤×÷µÄÎȶ¨Î¶ÈΪ
70
70
¡æ£®

Î¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨µç»°£º027-86699610 ¾Ù±¨ÓÊÏ䣺58377363@163.com

¾«Ó¢¼Ò½ÌÍø