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<P>   æœ‰å…³èµ„料和基本实验结论表明,高频无æžç¯å·¥ä½œæ—¶å¯¹äººä½“çš„å¥åº·æ²¡æœ‰ä»»ä½•å½±å“ã€?/P> <P>3ã€æ— æžç¯å·¥ä½œæ—¶ç¯æ³¡è¡¨é¢æ¸©åº¦æœ‰å¤šé«˜ï¼?/P> <P>   ä»?5W高频无æžç¯ä¸ºä¾‹ï¼Œç¯æ³¡çš„è¡¨é¢æ¸©åº?90℃,165Wç¯æ³¡è¡¨é¢æ¸©åº¦ä¹Ÿåªæœ?00℃左å³ï¼Œè€Œæ™®é€šçš„100W白炽ç¯å·¥ä½œæ—¶çš„è¡¨é¢æ¸©åº¦ä¼šè¶…过100â„?金å¤ç¯å’Œé«˜åދ钠ç¯å°±æ›´é«˜ï¼Œä¼šè¶…è¿?50℃ã€?/P> <P>4ã€é«˜é¢‘æ— æžç¯çš„电å­é•‡æµå™¨å¤–壳是å¦å¸¦ç”µï¼Ÿå¯¹äººèº«å®‰å…¨ä¼šä¸ä¼šæž„æˆå¨è„‹ï¼Ÿ</P> <P>   æŽ¥äºŽç«çº¿å’Œä¸­çº¿ä¹‹é—´çš„å…±æ€ç”µå®¹C3ã€C4的中点接到电路盒外壳,使金属外壳带电,但C3ã€C4çš„å–值较å°ï¼Œä¸€èˆ¬åª2200PFï½?700PF,å¤–å£³åœ¨å®‰è£…æ—¶è¦æ±‚ä¸Žå¤§åœ°è”æŽ¥ï¼Œæ‰€ä»¥æ˜¯å®‰å…¨çš„ï¼Œä¸æž„æˆå¯¹äººèº«å®‰å…¨çš„å¨è„‹ã€‚ä½†å½“ç”µè·¯ç›’å¤–å£³æœªä¸Žå¤§åœ°è”æŽ¥æ—¶ï¼Œç”¨æ½®æ¹¿çš„æ‰‹æŽ¥è§¦å¤–å£³ï¼Œå¯èƒ½ä¼šæœ‰è½»å¾®éº»æ‰‹çš„æ„Ÿè§‰ï¼Œè¿™æ˜¯æ­£å¸¸çš„。如果我们用旧å¼500型万用表测é‡å¤–壳对地线电压,就会å‘现,用500Vï½žæ¡£æµ‹é‡æ—¶ï¼Œçº¦ä¸º90ï½?00V~;ç”?50V~档测é‡çº¦ä¸º100V~;ç”?0V~档测é‡çº¦ä¸º30V~;ç”?0V~档测é‡åˆ™åªæœ?V~。这些ä¸ä¸€è‡´çš„æµ‹é‡ç»“果实际是感应电压,感应电压的大å°ä¼šå—到客观环境的影å“,例如放置的方ä½ï¼Œè·ç¦»ä¿¡å·æºçš„远近,环境和金属表é¢çš„æ¹¿åº¦ï¼Œä»¥åŠè¡¨å¤´æœ¬èº«ä¸åŒæµ‹é‡æ¡£ä½çš„阻抗等等。为了é™ä½Žâ€œéº»æ‰‹â€ï¼Œå…±æ€ç”µå®¹å°½é‡å–低,åªè¦EMC能通过,å–2000PF为宜ã€?/P> <P>5.å¯åŠ¨ç”µåŽ‹ã€å¯åŠ¨ç”µæµå’Œå¯åŠ¨åŠŸçŽ‡æœ‰å¤šå¤§ï¼Ÿ</P> <P>    高频无æžç¯å·¥ä½œæ—¶ï¼Œå¯åŠ¨ç”µåŽ‹ï¼ˆä¹Ÿå³ç‚¹ç«ç”µåŽ‹ï¼‰å¯è¾?000-4000VP-P。如果用手碰触输出端接点,å¯èƒ½ä¼šå¼•起皮肤表é¢å±€éƒ¨ç¼ä¼¤ï¼Œä½†ä¸ä¼šè‡´å‘½ï¼Œå› ä¸ºäººä½“呈感抗,在工作频率较高情况下,其阻抗Z=2Ï€fL也高,ä¸å‘生å±é™©ã€‚由于是软å¯åŠ¨ï¼Œå¯åŠ¨ç”µæµå’Œå¯åŠ¨åŠŸçŽ‡éƒ½é™åˆ¶åœ¨é¢å®šèŒƒå›´ä¹‹å†…ã€?/P> <P>6.ä¸åŒç“¦æ•°çš„ç¯æ³¡å’Œç”µè·¯å¯å¦äº’æ¢ï¼?/P> <P>    ä¸å¯ä»¥ã€?5Wçš„ç¯æ³¡è¦é…接85W功率的高频电å­é•‡æµå™¨ï¼?0Wçš„ç¯æ³¡è¦é…接60W的镇æµå™¨ä¸å¯ä»¥é𿄿Œªç”¨ï¼Œå› ä¸ºç”µè·¯å’Œè€¦åˆå™¨åªæœ‰å·¥ä½œåœ¨è®¾å®šçš„é¢å®šæŒ‡æ ‡èŒƒå›´å†…æ‰èƒ½å‘挥最佳的效能,对ç¯çš„寿命和安全性都有好处ã€?/P> <P>7.è¿žæŽ¥ç¯æ³¡çš„电缆线能ä¸èƒ½å‰ªçŸ­æˆ–加长ï¼?/P> <P>    ä¸å¯ä»¥ã€‚连接高频电缆线本身有一定的分布电容和分布电感,电路的高频输出è¦ä¸Žè€¦åˆå™¨åŒ¹é…æ‰èƒ½æ­£å¸¸å·¥ä½œï¼Œéšæ„åŠ é•¿æˆ–å‰ªçŸ­å¿…ç„¶ä½¿ç”µç¼†æ€»çš„åˆ†å¸ƒç”µå®¹å’Œåˆ†å¸ƒç”µæ„Ÿå‚æ•°äº§ç”Ÿå˜åŒ–,导致电路失è°ï¼Œäº§ç”Ÿæ•…障。但如果把高频功率振è¡ç”µè·¯ä¸Žå¼€å…³ç”µæºåˆ†å¼€ï¼Œåˆ™å¼€å…³ç”µæºçš„ç›´æµè¾“出引线原则上å¯ä»¥å»¶é•¿ã€?/P> <P>8.高频无æžç¯æ‰“破时有没有å±é™©ï¼Ÿ</P> <P>    没有。冷泡打破时,里é¢çš„固体汞和辅助汞是å¯ä»¥å›žæ”¶çš„ã€‚çƒ­æ³¡ï¼ˆç‚¹ç‡ƒçš„ç¯æ³¡ï¼‰æ‰“破时,因没有普通ç¯ä¸çš„é«˜æ¸©çƒ­ï¼Œç¯æ³¡è¡¨é¢æ¸©åº¦ä¹Ÿå°äº?00℃。ä¸å«å¼•起纸屑之类的易燃物å“ç‡ƒçƒ§ï¼Œç”¨èµ·æ¥æ¯”å…¶ä»–ç¯è¦å®‰å…¨å¾—多,几乎ä¸ç”¨â€œé˜²æš´â€ã€?/P> <br> </div> </div> </div><div style="clear:both"></div></div> <div class="ld_footer hidden-md visible-lg-block hidden-xs hidden-sm"> <hr/> <div class="big"> <div class="ft_left 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