热敏电阻阻值10K有哪些B值？ ntc热敏电阻10k的 测得温度偏高怎么办,该选5k的还收1...
\u70ed\u654f\u7535\u963b\u4e0a\u6807\u8bc6\u768410k-25c\u662f\u4ec0\u4e48\u610f\u601d\u3000\u3000NTC\u70ed\u654f\u7535\u963b\uff0c\u662f\u6307\u8d1f\u6e29\u5ea6\u7cfb\u6570\u70ed\u654f\u7535\u963b\uff0c\u963b\u503c\u4f1a\u968f\u6e29\u5ea6\u5347\u9ad8\u964d\u4f4e\uff0c10K\u662f\u6307\u6807\u79f0\u963b\u503c\uff0825\u2103\uff09\u662f10K\u03a9\uff0cB\u6307\u662f3950K\u3002
\u3000\u3000\u8fd9\u662f\u4e2a10\u03a9\uff0c\u82af\u7247\u662f11mm\u7684\u8d1f\u6e29\u5ea6\u7cfb\u6570\u7684\u70ed\u654f\u7535\u963b\u3002
\u3000\u30001\u3001\u70ed\u654f\u7535\u963b\u5668\u662f\u654f\u611f\u5143\u4ef6\u7684\u4e00\u7c7b\uff0c\u6309\u7167\u6e29\u5ea6\u7cfb\u6570\u4e0d\u540c\u5206\u4e3a\u6b63\u6e29\u5ea6\u7cfb\u6570\u70ed\u654f\u7535\u963b\u5668\uff08PTC\uff09\u548c\u8d1f\u6e29\u5ea6\u7cfb\u6570\u70ed\u654f\u7535\u963b\u5668\uff08NTC\uff09\u3002
\u3000\u30002\u3001\u70ed\u654f\u7535\u963b\u5668\u7684\u5178\u578b\u7279\u70b9\u662f\u5bf9\u6e29\u5ea6\u654f\u611f\uff0c\u4e0d\u540c\u7684\u6e29\u5ea6\u4e0b\u8868\u73b0\u51fa\u4e0d\u540c\u7684\u7535\u963b\u503c\u3002\u6b63\u6e29\u5ea6\u7cfb\u6570\u70ed\u654f\u7535\u963b\u5668\uff08PTC\uff09\u5728\u6e29\u5ea6\u8d8a\u9ad8\u65f6\u7535\u963b\u503c\u8d8a\u5927\uff0c\u8d1f\u6e29\u5ea6\u7cfb\u6570\u70ed\u654f\u7535\u963b\u5668\uff08NTC\uff09\u5728\u6e29\u5ea6\u8d8a\u9ad8\u65f6\u7535\u963b\u503c\u8d8a\u4f4e\uff0c\u5b83\u4eec\u540c\u5c5e\u4e8e\u534a\u5bfc\u4f53\u5668\u4ef6\u3002
NTC\u70ed\u654f\u7535\u963b\u9664\u4e86\u4f60\u8bf4\u768410K\u8fd9\u4e2a\u53c2\u6570\u4ee5\u5916\uff0c\u8fd8\u6709\u4e00\u4e2a25\u5ea6\u4e0e50\u5ea6\u6bd4\u503c\u53c2\u6570\uff0c\u901a\u5e38\u7528B3950\u3001B3470\u3001B3350\u6765\u8868\u793a\uff0c\u53c2\u6570B\u7684\u6570\u503c\u6108\u9ad8\uff0c\u6d4b\u91cf\u7684\u6e29\u5ea6\u5c31\u6108\u9ad8\u3002
\u4f60\u5e94\u8be5\u5148\u4e86\u89e3NTC\u7684\u53c2\u6570B\u662f\u591a\u5c11\uff0c\u572825\u5ea6\u65f6\u6709\u65e0\u8bef\u5dee\uff0c\u5982\u679c\u6ca1\u6709\uff0c\u5219\u53ef\u6839\u636e\u5df2\u77e5\u53c2\u6570B\uff0c\u9009\u62e9\u8f83\u5c0f\u7684\u53c2\u6570B\u7684NTC\u3002
\u5982\u679c\u572825\u5ea6\u65f6\u5c31\u5b58\u5728\u8bef\u5dee\uff0c\u6e29\u5ea6\u504f\u9ad8\uff0c\u90a3\u5c31\u5e94\u8be5\u6362\u62105K\u3002
绛旓細CMFB鎸囩殑鏄礋娓╁害绯绘暟鐑晱鐢甸樆锛103=10K娆э紝J=5%锛堢簿搴︼級锛3500=3500K锛B鍊锛夛紝H=3%锛圔鍊肩簿搴︼級锛
绛旓細T = 1./(1./(273.15+25)+1./B*log(Rt./R25))-273.15 鍏朵腑锛孊涓鐑晱鐢甸樆鐨勫浐瀹氬弬鏁帮紝R25涓哄叾鍦25鎽勬皬搴︿笅鐨闃诲锛孯t涓哄疄闄呮俯搴︿笅鐨勯樆鍊 涓嬪浘鏄剧ず浜哛25=10k锛屼笉鍚B鍊鐨勭儹鏁忕數闃绘俯搴︾數闃绘洸绾 浣跨敤鐢甸樆鍒嗗帇娉曞姞杩愭斁璺熼殢璁捐妯℃嫙绔數璺紝娴嬮噺4-10k灏辫兘瑕嗙洊浜轰綋浣撴俯鑼冨洿浜嗐傛垜鐨勭數璺湁涓壒娈...
绛旓細NTC鐑晱鐢甸樆25搴︽槸10K锛岄偅60搴︽槸2~3K銆傚叿浣撶殑杩橀渶瑕佷綘鎻愪緵B鍊鏄3435鐨勮繕鏄3950鐨勩傚鏋滀綘璐拱杩囨浜у搧锛屼綘鍚戜綘鐨勪緵搴斿晢绱㈣娓╁害瀵瑰簲琛ㄥ氨鍙互鐨勩侼TC鐑晱鐢甸樆鏄礋娓╁害绯绘暟鐨勶紝鐢甸樆鍊闅忔俯搴﹀彉鍖栬屽彉鍖栫殑銆
绛旓細鐑晱鐢甸樆鐨勭壒鎬ф槸闅忔俯搴︾殑涓婂崌锛闃诲涓嬮檷銆傚浗瀹舵爣鍑嗕腑瑙勫畾锛氫互25搴︿笅鐨勯樆鍊间綔涓洪浂鍔熺巼鏍囩О闃诲笺備篃灏辨槸鎴戜滑鎵璇寸殑5K銆10K銆50K銆100K鐨勭儹鏁忕數闃伙紝閮芥槸鐗规寚25搴︿笅鐨勯樆鍊笺傛潗鏂欏父鏁帮紙鎴戜滑鎵璇寸殑B鍊锛夊叕寮忎负锛欱=锛圱1*T2锛/锛圱2-T1锛*Ln锛圧T1/RT2锛変竴鑸儹鏁忕數闃荤殑鏉愭枡甯告暟锛岄噰鐢25/50鍜25/85搴︽潵...
绛旓細ntc鐨3950k鐨勬剰鎬濇槸锛氭湁3950k銆侼TC鐑晱鐢甸樆鐨闃诲涓庢俯搴﹀鐓ц〃涓昏鍏虫敞鍑犱釜鏂归潰锛氭俯搴︺丯TC闃诲笺侀樆鍊煎叕宸強B鍊銆侼TC鐑晱鐢甸樆闅忕潃娓╁害鐨勫崌楂樿岄檷浣庝簡鐢甸樆锛屽苟鎻愪緵鍚勭鍩烘湰鐢甸樆鍜屾洸绾裤傛垜浠氱煡鎯呭喌鎵璇寸殑闃诲煎嵆涓篘TC鐨勭殑鏍囩О闃诲硷紝澶у鏁版儏鍐典笅鍗25鈩冩椂鐨勯樆鍊硷紝瀹冩彁渚涗簡涓涓柟渚跨殑鍙傝冪偣銆備緥濡傦紝10K鐨凬TC...
绛旓細b鍊纭畾浜鐑晱鐢甸樆鐨勭壒寰侊紝姣忎釜鍘傚鍋氱殑鐢甸樆锛屽鏋渂鍊肩浉鍚岋紝闃诲灏辨槸涓鏍风殑
绛旓細MF54鐝犵姸娴嬫俯鍨鐑晱鐢甸樆 搴旂敤: 鐢靛瓙浣撴俯璁 鐜哀鏍戣剛鍖呭皝鍨婲TC鐑晱鐢甸樆,鍏锋湁楂樼簿搴﹀拰蹇熷弽搴旂瓑浼樼偣銆俁=10K B= 3380, 绮惧害1%, 鐝犵姸鐩村緞 1.5mm 宸﹀彸 鏈鍕熸姇椤圭洰浜у搧绯绘柊楂樼悊鐢靛瓙鐙珛寮鍙戯紝鍏锋湁瀹屽叏鑷富鐭ヨ瘑浜ф潈锛屽叿鏈変互涓嬬壒鐐癸細 灏忓瀷鍖栵細鍖荤枟鐢靛瓙鍜岀Щ鍔ㄩ氫俊鐢∟TC鐑晱鐢甸樆搴旂敤浜嗘渶鏂板鍚堝皝瑁呮妧鏈紝...
绛旓細鏍规嵁闀垮害鍗曚綅鐨勪笉鍚屾湁涓ょ琛ㄧず鏂规硶锛屽嵆鑻卞埗琛ㄧず娉曞拰鍏埗琛ㄧず娉曘備緥濡傦細0603鏄嫳鍒惰〃绀烘硶锛岃〃绀洪暱搴︿负0.06鑻卞锛屽搴︿负0.03鑻卞;鍙堝锛1005鏄叕鍒惰〃绀烘硶锛岃〃绀洪暱搴︿负1.0姣背锛屽搴︿负0.5姣背銆備笟鍐呯殑鎯緥鏄敤鑻卞埗琛ㄧず銆傜洰鍓嶆渶灏忕殑璐寸墖鐢甸樆涓0201锛屾渶澶х殑涓2512銆傝创鐗鐢甸樆闃诲璇樊绮惧害鏈壜1%銆伮2%銆伮...
绛旓細鐑晱鐢甸樆绛夌骇寰堝锛屽悓涓鍘傚鐨勪笉鍚屾壒娆′篃鏈夊井灏忓樊鍒備竴鑸娇鐢ㄥ墠浼氱簿纭祴閲忋
绛旓細Rt = RT0*EXP(Bn*锛1/T-1/T0)锛夈傚紡涓璕T銆丷T0鍒嗗埆涓烘俯搴銆乀0鏃鐨勭數闃诲锛孊n涓烘潗鏂欏父鏁帮紟闄剁摲鏅剁矑鏈韩鐢变簬娓╁害鍙樺寲鑰屼娇鐢甸樆鐜囧彂鐢熷彉鍖栵紝杩欐槸鐢卞崐瀵间綋鐗规у喅瀹氱殑銆侼TC鐑晱鐢甸樆鍣鐨勫彂灞曠粡鍘嗕簡婕暱鐨勯樁娈碉紟1834骞达紝绉戝瀹堕娆″彂鐜颁簡纭寲閾舵湁璐熸俯搴︾郴鏁扮殑鐗规э紟1930骞达紝绉戝瀹跺彂鐜版哀鍖栦簹閾-姘у寲閾滀篃...
