ÌâÄ¿ÄÚÈÝ

ÔÚ¡°²â¶¨½ðÊôµÄµç×èÂÊ¡±µÄʵÑéÖÐ
¢ÙÐèÒªÖ±½Ó²âÁ¿µÄÎïÀíÁ¿ÊÇ
U¡¢I¡¢L¡¢d
U¡¢I¡¢L¡¢d
£¬ÇëÓÃÖ±½Ó²âÁ¿µÄÁ¿À´±íʾ½ðÊôË¿µÄµç×èÂÊ£¬Ôò¦Ñ=
U¦Ðd2
4IL
U¦Ðd2
4IL

¢Ú¸ÃʵÑéÖÐÐè²ÉÓ÷ü°²·¨²â½ðÊôË¿£¨×èֵԼΪ3¦¸£©µÄµç×èÖµ£¬ÊµÑéÊÒÌṩÁËÒÔÏÂÒÇÆ÷£º
A£®µçѹ±íV£º3V£¨ÄÚ×èԼΪ3k¦¸£©ºÍ15V£¨ÄÚ×èÔ¼15k¦¸£©Á½¸öÁ¿³Ì
B£®µçÁ÷±íA£º0.6A£¨ÄÚ×èԼΪ0.1¦¸£©ºÍ3A£¨ÄÚ×èԼΪ0.02¦¸£©Á½¸öÁ¿³Ì
C£®Ò»½Ú¸Éµç³Ø        
D£®»¬¶¯±ä×èÆ÷£¬×î´ó×èÖµ10¦¸    
E£®µ¼Ïß¡¢µç¼üÈô¸É
ΪÁ˼õСʵÑéÎó²î£¬µçѹ±íӦѡÔñ
3V
3V
Á¿³Ì£¬µçÁ÷±íӦѡÔñ
0.6A
0.6A
Á¿³Ì£®µçÁ÷±íÓ¦²ÉÓÃ
Íâ½Ó
Íâ½Ó
·¨£¨Ìî¡°ÄÚ½Ó¡±»ò¡°Íâ½Ó¡±£©£¬Í¨¹ý¸Ã·½·¨²â³öµÄµç×èÖµ±Èʵ¼Êֵƫ
С
С
£¨Ìî¡°´ó¡±»ò¡°Ð¡¡±£©£®
¢ÛÔÚ¿òÄÚ»­³öÓ÷ü°²·¨²âÁ¿¸Ãµç×èµÄ×èֵʱµÄʵÑéµç·ͼ£¬²¢Á¬½ÓÉÐδÍê³ÉµÄʵÎïͼ

¢ÜÈçͼÊÇÀûÓÃÂÝÐý²â΢Æ÷²â³öµÄ½ðÊôË¿µÄÖ±¾¶£¬Æä¶ÁÊýΪ
1.997
1.997
mm£®
·ÖÎö£º¢Ù¸ù¾Ýµç×趨ÂÉR=¦Ñ
L
S
¡¢Å·Ä·¶¨ÂÉR=
U
I
È·¶¨ÐèÒª²âÁ¿µÄÎïÀíÁ¿£¬´Ó¶øÇó³öµç×èÂʵıí´ïʽ£®
¢Ú¸ù¾ÝµçÔ´µçѹȷ¶¨µçѹ±íµÄÁ¿³Ì£¬¸ù¾Ýµç·ÖеĵçÁ÷È·¶¨µçÁ÷±íµÄÁ¿³Ì£®Í¨¹ý±È½Ï´ý²âµç×è¡¢µçÁ÷±í¡¢µçѹ±íÄÚ×è´óС£¬È·¶¨µçÁ÷±íµÄÄÚÍâ½Ó£®
¢Û¸ù¾Ý·ü°²·¨²âµç×裬»­³öµç·ͼ£¬ÔÙ¸ù¾Ýµç·ͼÁ¬½ÓʵÎïͼ£®
¢ÜÂÝÐý²â΢Æ÷µÄ¶ÁÊýµÈÓڹ̶¨¿Ì¶È¶ÁÊý¼ÓÉϿɶ¯¿Ì¶È¶ÁÊý£¬ÔÚ¶Á¿É¶¯¿Ì¶È¶ÁÊýʱÐè¹À¶Á£®
½â´ð£º½â£º¢Ù¸ù¾Ýµç×趨ÂÉR=¦Ñ
L
S
¡¢Å·Ä·¶¨ÂÉR=
U
I
£¬µÃ¦Ñ=
US
IL
£®ºá½ØÃæ»ýS=
¦Ðd2
4
£¬ËùÒÔ¦Ñ=
U¦Ðd2
4IL
£¬ÐèÒª²âÁ¿µÄÎïÀíÁ¿ÓУºµçѹU¡¢µçÁ÷I£¬µ¼Ïߵij¤¶ÈL£¬µ¼ÏßµÄÖ±¾¶d£®
¢ÚÒòΪµçѹµÄµçѹΪһ½Ú¸Éµç³Ø£¬µçѹ´óԼΪ1.5V£¬Ôòµçѹ±íÑ¡Ôñ3VÁ¿³ÌµÄÎó²î½ÏС£®µç·ÖеÄ×î´óµçÁ÷´óÔ¼I=
1.5
3
A=0.5A
£¬ËùÒÔµçÁ÷±íÑ¡Ôñ0.6AÁ¿³ÌµÄÎó²î½ÏС£®½ðÊôË¿µÄµç×èԶСÓÚµçѹ±íµÄÄÚ×裬ÊôÓÚСµç×裬¸ù¾Ý¡°Ð¡ÍâƫС¡±Öª£¬µçÁ÷±í²ÉÈ¡Íâ½Ó·¨£¬²âÁ¿Îó²îƫС£®
¢ÛµçÁ÷±í²ÉÈ¡Íâ½Ó·¨£¬»¬¶¯±ä×èÆ÷²ÉÓÃÏÞÁ÷ʽ½Ó·¨£¬µç·ͼÈçÏ£¬ÊµÎïÁ¬½ÓͼÈçÏ£®
¢ÜÂÝÐý²â΢Æ÷µÄ¶ÁÊýΪ£º1.5mm+0.01¡Á49.7mm=1.997mm£®
¹Ê´ð°¸Îª£º¢ÙU¡¢I¡¢L¡¢d£¬
U¦Ðd2
4IL

¢Ú3V£¬0.6A£¬Íâ½Ó£¬Ð¡
¢ÛÈçͼËùʾ£®
¢Ü1.997
µãÆÀ£º½â¾ö±¾ÌâµÄ¹Ø¼üÕÆÎÕÂÝÐý²â΢Æ÷µÄ¶ÁÊý·½·¨£¬ÒÔ¼°ÕÆÎÕÆ÷²ÄÑ¡È¡µÄÔ­Ôò£¬¾«È·¡¢°²È«£¬ÖªµÀÈçºÎÈ·¶¨µçÁ÷±íµÄÄÚÍâ½Ó£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿
Ôڲⶨ½ðÊôµÄµç×èÂʵÄʵÑéÖУ¬½ðÊôµ¼Ïß³¤Ô¼0.8m£¬Ö±¾¶Ð¡ÓÚ1mm£¬µç×è´óԼΪ4¦¸£®ÊµÑéÖ÷Òª²½ÖèÈçÏ£¬
ÇëÌîдÆäÖеĿհײ¿·Ö»ò°´ÒªÇóÁ¬Ïߣº

£¨¢ñ£©²½Ö裺
1ÓÃÃ׳߲âÁ¿½ðÊôµ¼Ïߵij¤¶È£¬²â3´Î£¬Çó³öƽ¾ùÖµL£»
2 ÔÚ½ðÊôµ¼ÏßµÄ3¸ö²»Í¬Î»ÖÃÉÏÓÃ
ÂÝÐý²â΢Æ÷
ÂÝÐý²â΢Æ÷
²âÁ¿Ö±¾¶£¬Çó³öƽ¾ùÖµd£»
3 Ó÷ü°²·¨²âÁ¿½ðÊôµ¼Ïߵĵç×èR£®ÏÖÓÐÆ÷²Ä£ºÖ±Á÷µçÔ´£¨µç¶¯ÊÆÔ¼4.0V£¬
ÄÚ×èºÜС£©£¬
£¨¢ò£© ¸ø¶¨µÄÆ÷²Ä£ºµçÁ÷±íA1£¨Á¿³Ì0¡«0.6A£¬ÄÚ×èÔ¼0.125¦¸£©£»µçÁ÷±íA2£¨Á¿³Ì0¡«3.0A£¬ÄÚ×èÔ¼0.025¦¸£©£»µçѹ±íV£¨Á¿³Ì0¡«3V£¬ÄÚ×èÔ¼3k¦¸£©£»»¬¶¯±ä×èÆ÷R0£¨×î´ó×èÖµ20¦¸£©£¬¿ª¹ØS¡¢µ¼ÏßÈô¸É£®
¢ÙÈç¹û¼ÈÒªÂú×ã²âÁ¿ÒªÇó£¬ÓÖÒª²âÁ¿Îó²î½ÏС£¬Ó¦¸ÃÑ¡ÓõĵçÁ÷±íÊÇ
µçÁ÷±íA1
µçÁ÷±íA1
£»
¢ÚÆäʵÑéµç·ԭÀíͼÈç¼×¡¢ÒÒ£¬ÄãÈÏΪӦ¸ÃÑ¡ÔñÄÇÖÖ
¼×
¼×
£¨¼×»òÒÒ£©µç·£®
¢ÛÔÚʵÎïͼͼ±ûÉÏ»­ÏßÁ¬½Ó³ÉʵÑéµç·£®
¢Ü¸ù¾ÝÉÏÊö²âµÃµÄ½ðÊôµ¼Ïß³¤¶ÈL£¬Ö±¾¶dºÍµç×èR£¬Óɵç×èÂʵıí´ïʽ¦Ñ=
¦Ðd2R
4L
¦Ðd2R
4L
Ëã³ö¸Ã½ðÊôµÄµç×èÂÊ£®£¨Óøø¶¨µÄ×Öĸ±íʾ£©
£¨2013?µÂÖݶþÄ££©Ä³Í¬Ñ§ÔÚ¡°²â¶¨½ðÊôµÄµç×èÂÊ¡±µÄʵÑéÖУº
¢ÙÓÃÂÝÐý²â΢Æ÷²âÁ¿½ðÊôË¿µÄÖ±¾¶Èçͼ¼×Ëùʾ£¬Ôò¸Ã½ðÊôË¿µÄÖ±¾¶Îª
0.520
0.520
mm£®
¢ÚÏÈÓöàÓõç±í´Ö²âÆäµç×èRx£®½«Ñ¡Ôñ¿ª¹Øµ÷µ½Å·Ä·µ²¡°¡Á100¡±µ²Î»²¢µ÷Á㣬²âÁ¿Ê±·¢ÏÖÖ¸Õëƫת½Ç¶È¹ý´ó£¬ÕâʱËûÓ¦¸Ã½«Ñ¡Ôñ¿ª¹Ø»»³ÉÅ·Ä·µ²µÄ¡°
¡Á10
¡Á10
¡±µ²Î÷°ëÇò£¨Ñ¡Ìî¡°¡Ál0¡±¡±¡°¡Á1K¡±£©£¬ÖØÐÂÅ·Ä·µ÷Á㣬ÔٴβâÁ¿½ðÊôË¿µÄ×èÖµ£®Æä±íÅ̼°Ö¸ÕëËùָλÖÃÈçͼÒÒËùʾ£¬Ôò´Ë¶Î½ðÊôË¿µÄµç×èΪ
120
120
¦¸£®

¢ÛÏÖÒª½øÒ»²½¾«È·²âÁ¿RxµÄ×èÖµ£¬Êµ
ÑéÊÒÌṩÁËÒÔÏÂÆ÷²Ä£º
Ö±Á÷µçÔ´E£¨µç¶¯ÊÆ4V£¬ÄÚ×è²»¼Æ£©
µçÁ÷±íA1£¨Á¿³Ì30mA£¬ÄÚ×èÔ¼1¦¸£©
µçÁ÷±íA2£¨Á¿³Ì500¦ÌA£¬ÄÚ×èΪ100¦¸£©
»¬¶¯±ä×èÆ÷R1£¨×î´ó×èֵΪ10¦¸£©
¶¨Öµµç×èR2=5000¦¸£¬£»
¶¨Öµµç×èR3=500¦¸£»
µç¼üS¼°µ¼ÏßÈô¸É£®
ΪÁ˲ⶨ½ðÊôË¿Éϵĵçѹ£¬¿ÉÒÔ½«µçÁ÷±í
A
 
2
A
 
2
£¨Ñ¡Ìî¡°A1¡±»ò¡°A2¡±£©´®Áª¶¨Öµµç×è
R
 
3
R
 
3
£¨Ñ¡Ìî¡°R2¡°»ò¡°R3¡±£©£¬½«Æä¸Ä×°³ÉÒ»¸öÁ¿³ÌΪ3.0VµÄµçѹ±í£®Èçͼ±ûËùʾ£¬¸ÃͬѧÉè¼ÆÁ˲âÁ¿µç×èRxµÄa¡¢bÁ½ÖÖ·½°¸£¬ÆäÖÐÓõ½Á˸Ä×°ºóµÄµçѹ±íºÍÁíÒ»¸öµçÁ÷±í£¬ÔòӦѡ·½°¸
a
a
£¨Ñ¡Ìî¡°a¡±»ò¡°b¡±£©£®
ÔÚ¡°²â¶¨½ðÊôµÄµç×èÂÊ¡±µÄʵÑéÖУ¬±»²â½ðÊôË¿µÄµç×è´óԼΪ6¦¸£®ÏÖÏÈÓÿ̶ȳ߲â³ö½ðÊôË¿µÄ³¤¶Èl£»½Ó×ÅÓÃÂÝÐý²â΢Æ÷²âÁ¿½ðÊôË¿Ö±¾¶d£¬Æä¿Ì¶ÈλÖÃÈçͼ¼×Ëùʾ£»ÔÙÓ÷ü°²·¨²â³ö½ðÊôË¿Á½¶ËµÄµçѹUºÍͨ¹ý½ðÊôË¿µÄµçÁ÷I£¬¼ÆËã³öËüµÄµç×裻×îºó¸ù¾Ýµç×趨ÂɼÆËã³ö¸Ã½ðÊô²ÄÁϵĵç×èÂÊ£®
¾«Ó¢¼Ò½ÌÍø
¢Ù´Óͼ¼×ÖжÁ³ö½ðÊôË¿µÄÖ±¾¶dΪ
 
mm£®
¢ÚÔÚÓ÷ü°²·¨²â¶¨½ðÊôË¿µÄµç×èʱ£¬³ý±»²âµÄµç×èË¿Í⣬»¹ÓÐÈçϹ©Ñ¡ÔñµÄʵÑéÆ÷²Ä£º
Ö±Á÷µçÔ´E£ºµç¶¯ÊƵÄ4.5V£¬ÄÚ×èºÜС£»
µçÁ÷±íA1£ºÁ¿³Ì0¡«0.6A£¬ÄÚ×èΪ0.125¦¸£»
µçÁ÷±íA2£ºÁ¿³Ì0¡«3.0A£¬ÄÚ×èΪ 0.025¦¸£»
µçѹ±íV1£ºÁ¿³Ì0¡«3V£¬ÄÚ×èÁ¦3k¦¸£»
µçѹ±í V2£ºÁ¿³Ì 0¡«15V£¬ÄÚ×èΪ15¦¸£»
»¬¶¯±ä×èÆ÷R1£º×î´ó×èÖµ10¦¸£¬ÔÊÐíͨ¹ýµÄ×î´óµçÁ÷Ϊ 0.2A£»
»¬¶¯±ä×èÆ÷R2£º×î´ó×èÖµ20¦¸£¬ÔÊÐíͨ¹ýµÄ×î´óµçÁ÷Ϊ 1.0A£»
¿ª¹Ø¡¢µ¼Ïߵȣ®
ÒªÇóÓнϸߵIJâÁ¿¾«¶È£¬²¢ÄܲâµÃ¶à×éÊý¾Ý£®Ôڿɹ©Ñ¡ÔñµÄÆ÷²ÄÖУ¬Ó¦¸ÃÑ¡ÓõĵçÁ÷±íÊÇ
 
£¬Ó¦Ñ¡Óõĵçѹ±íÊÇ
 
£¬Ó¦¸ÃÑ¡ÓõĻ¬¶¯±ä×èÆ÷ÊÇ
 
£®
¢Û¸ù¾ÝËùÑ¡µÄÆ÷²Ä£¬ÔÚͼÒÒµÄÐéÏß¿òÖл­³öʵÑéµç·ͼ£®
¢Üд³öÓòâµÃµÄÎïÀíÁ¿±íʾµÄ¼ÆËãµç×èÂʵıí´ïʽ£¨ÓÃ×Öĸ±íʾ£©£º¦Ñ=
 
£®

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

¾«Ó¢¼Ò½ÌÍø