用惠斯通电桥测电阻实验数据处理问题。 惠斯通电桥法测电阻实验报告实验误差有哪些
\u7528\u60e0\u65af\u901a\u7535\u6865\u6d4b\u7535\u963b\u5b9e\u9a8c\u6570\u636e\u5982\u4f55\u5904\u7406\u5f53\u7535\u6865\u4e0a\u7684\u6307\u793a\u9488\u5728\u4e2d\u95f4\u4e3a\u96f6\u65f6\uff0c\u8bf4\u660e\u7535\u6865\u8fbe\u5230\u4e86\u5e73\u8861\uff0c\u4e5f\u5c31\u662f\u8bf4\u88ab\u6d4b\u7535\u963b\u4e0e\u5bf9\u5e94\u6865\u81c2\u7684\u7535\u963b\u503c\u5411\u7b49\uff0c\u5bf9\u5e94\u6865\u81c2\u7684\u7535\u963b\u503c\u5c31\u662f\u7535\u6865\u4e0a\u4e2a\u7535\u963b\u65cb\u94ae\u4e0a\u6307\u793a\u7684\u6240\u6709\u503c\u4e4b\u548c\u3002\u8bf4\u767d\u4e86\u5c31\u662f\u5f53\u7535\u6865\u5e73\u8861\u65f6\u5c06\u7535\u6865\u6240\u6709\u65cb\u94ae\u6307\u793a\u7684\u7535\u963b\u503c\u901a\u52a0\uff0c\u8fd9\u5c31\u662f\u88ab\u6d4b\u7535\u963b\u7684\u503c\u3002
\u8bef\u5dee\u6709\uff1a
\u7535\u963b\u7684\u7cbe\u5ea6\u5bfc\u81f4\u7684\u8bef\u5dee
\u8ba1\u7b97\u5bfc\u81f4\u7684\u8bef\u5dee
\u63a5\u89e6\u7535\u963b\u7684\u8bef\u5dee
\u7535\u6865\u963b\u503c\u6bd4\u8bbe\u7f6e\u4e0d\u5408\u7406
\u68c0\u6d41\u8ba1\u7075\u654f\u5ea6\u53ef\u5bfc\u81f4\u5076\u7136\u8bef\u5dee\u589e\u5927
\u5bfc\u7ebf\u7535\u963b\u53ef\u4f7f\u6d4b\u91cf\u503c\u504f\u5927\u6216\u504f\u5c0f,\u8ddf\u7535\u8def\u4e2d\u7535\u963b\u5206\u5e03\u6709\u5173,\u5c5e\u7cfb\u7edf\u8bef\u5dee\u3002
\u7b80\u4ecb\uff1a
\u60e0\u65af\u901a\u7535\u6865\u662f\u7531\u56db\u4e2a\u7535\u963b\u7ec4\u6210\u7684\u7535\u6865\u7535\u8def\uff0c\u8fd9\u56db\u4e2a\u7535\u963b\u5206\u522b\u53eb\u505a\u7535\u6865\u7684\u6865\u81c2\uff0c\u60e0\u65af\u901a\u7535\u6865\u5229\u7528\u7535\u963b\u7684\u53d8\u5316\u6765\u6d4b\u91cf\u7269\u7406\u91cf\u7684\u53d8\u5316\uff0c\u5355\u7247\u673a\u91c7\u96c6\u53ef\u53d8\u7535\u963b\u4e24\u7aef\u7684\u7535\u538b\u7136\u540e\u5904\u7406\uff0c\u5c31\u53ef\u4ee5\u8ba1\u7b97\u51fa\u76f8\u5e94\u7684\u7269\u7406\u91cf\u7684\u53d8\u5316\uff0c\u662f\u4e00\u79cd\u7cbe\u5ea6\u5f88\u9ad8\u7684\u6d4b\u91cf\u65b9\u5f0f\u3002
\u7531\u6765\uff1a
\u8fd9\u79cd\u7535\u6865\u662f\u7531\u82f1\u56fd\u53d1\u660e\u5bb6\u514b\u91cc\u65af\u8482\u57281833\u5e74\u53d1\u660e\u7684\uff0c\u4f46\u662f\u7531\u4e8e\u60e0\u65af\u901a\u7b2c\u4e00\u4e2a\u7528\u5b83\u6765\u6d4b\u91cf\u7535\u963b\uff0c\u6240\u4ee5\u4eba\u4eec\u4e60\u60ef\u4e0a\u5c31\u628a\u8fd9\u79cd\u7535\u6865\u79f0\u4f5c\u4e86\u60e0\u65af\u901a\u7535\u6865\u3002
\u5b9e\u9a8c\u76ee\u7684\uff1a
1\uff0e\u719f\u6089\u7528\u60e0\u65af\u901a\u7535\u6865\u6d4b\u7535\u963b\u7684\u539f\u7406\u3002
2\uff0e\u638c\u63e1QJ19\u578b\u7bb1\u5f0f\u60e0\u65af\u901a\u7535\u6865\u548cAC15\u578b\u76f4\u6d41\u590d\u5c04\u5f0f\u68c0\u6d41\u8ba1\u7684\u4f7f\u7528\u65b9\u6cd5\u3002
\u5e94\u7528\uff1a
\u5e94\u7528\u5728\u79f0\u91cd\u68c0\u6d4b\u5143\u4ef6\u4e0a\u3002
\u6ce8\u610f\u4e8b\u9879\uff1a
\u8c03\u8282\u65f6\u5e94\u5148\u7c97\u8c03\uff0c\u518d\u8fdb\u884c\u7ec6\u8c03\uff0c\u6b21\u5e8f\u4e0d\u80fd\u98a0\u5012\u3002
绛旓細浣犵殑璁＄畻寮忔槸Rx=R1*R2/R3鍚э紝瀵筊1R2R3鍒嗗埆姹傚亸瀵煎彇缁濆鍊肩浉鍔狅紝鏈塪Rx=(R2/R3)*dR1+(R1/R3)*dR2+(R1*R2)/(R3*R3)*dR3锛屽叾涓璬R1锛宒R2锛宒R3涓烘瘡涓鐢甸樆鐨勪笉纭畾搴︼紝鐩稿涓嶇‘瀹氬害涓篸Rx/Rx
绛旓細R1涓嶳2涓茶仈锛汻3涓嶳x涓茶仈锛屽啀灏嗕袱缁勫苟鑱旓紝鎸夐『鏃堕拡鐨勯『搴忔槸R1銆丷2銆丷x銆丷3锛屽湪R1涓嶳2闂寸殑鎺ョ偣鍜孯3涓嶳x鐨勬帴鐐归棿杩炴娴佽锛孯1涓嶳3鐨勬帴鐐规帴鐢垫簮鐨勪竴鏋侊紝R2涓嶳x鐨勬帴鐐规帴鐢垫簮鐨勫彟涓涓瀬锛岃皟鐢甸樆绠变娇妫娴佽鎸囬拡鍒0锛岃鍑篟1銆丷2銆丷3鐨勭數闃诲硷紝...
绛旓細閫愬樊娉
绛旓細灏嗘暟鏄捐〃璋冮浂銆傝皟闆跺悗灏嗛噺绋嬭浆鍏200mV閲忕▼锛屾寜涓嬧滄帴鍏モ濇寜閿紝涔熷彲浠ラ夋嫨寰畨琛ㄥ仛妫娴佽;璋冭妭R3鍚勭洏鐢甸樆锛岀矖骞宠 鍚庯紝鍙互閫夋嫨20mV鎸℃垨2mV鎸★紝缁嗚皟R3锛屼娇鐢垫ˉ骞宠 ;鎸変笅寮忚绠楄娴嬬數闃诲兼槸:Rx=(R2/R1)R3銆
绛旓細3銆佹鏃讹紝鍙互閫愭笎鍑忓皬鎴栧澶х數闃荤鐨勯樆鍊硷紝鐩村埌鎸囬拡鎸囧悜涓績浣嶇疆銆傝褰鏁版嵁锛氬綋鎸囬拡鎸囧悜涓績浣嶇疆鏃讹紝璁颁笅鐢甸樆绠辩殑闃诲硷紝杩欏氨鏄緟娴嬬數闃鐨勪及璁″笺傚叧闂數婧愶細鍏抽棴寮鍏筹紝鏂紑鐢佃矾銆傝绠楀疄闄呯數闃伙細鏍规嵁娆у瀹氬緥锛屽疄闄呯數闃荤瓑浜庣數婧愮數鍘嬮櫎浠ラ氳繃鐢甸樆绠辩殑鐢垫祦銆鎯犳柉鐧荤數妗ユ祴涓肩數闃荤墿鐞瀹為獙鐨勯噸瑕佹у涓嬶細1銆佹儬鏂櫥...
绛旓細瀹為獙鍘熺悊锛1銆 鐢甸樆鎸夌収闃诲煎ぇ灏忓彲鍒嗕负楂樼數闃(100K浠ヤ笂)銆佷腑鐢甸樆(1锝100K)鍜屼綆鐢甸樆(1浠ヤ笅)涓夌銆備竴鑸瀵肩嚎鏈韩浠ュ強鍜屾帴鐐瑰寮曡捣鐨勭數璺腑闄勫姞鐢甸樆绾︿负>0.1锛岃繖鏍峰湪娴嬩綆鐢甸樆鏃跺氨涓嶈兘鎶婂畠蹇界暐鎺夈傚鎯犳柉閫氱數妗鍔犱互鏀硅繘鑰屾垚鐨勫弻鑷傜數妗...
绛旓細姹傚姪鐢ㄦ儬鏂氱數妗ユ祴鐢甸樆涓嶇‘瀹氬害鎬庝箞绠楁垜浠彧鐢ㄤ簡绠卞紡鎯犳柉閫氱數妗ヨ屼笖娌℃湁鐏垫晱鐢垫祦璁＄敤鏁板瓧鐢靛帇琛ㄤ唬鏇跨殑鍘熷鏁版嵁鍙湁鍊嶇巼寰呮祴鐢甸樆闃诲煎彧鏈夎繖淇... 姹傚姪 鐢ㄦ儬鏂氱數妗ユ祴鐢甸樆 涓嶇‘瀹氬害鎬庝箞绠 鎴戜滑鍙敤浜嗙寮忔儬鏂氱數妗 鑰屼笖娌℃湁鐏垫晱鐢垫祦璁 鐢ㄦ暟瀛楃數鍘嬭〃浠ｆ浛鐨 鍘熷鏁版嵁鍙湁 鍊嶇巼 寰呮祴鐢甸樆闃诲 鍙湁杩欎咯 灞曞紑 鎴戞潵绛...
绛旓細杩欑鐢垫ˉ鏄敱鑻卞浗鍙戞槑瀹跺厠閲屾柉钂傚湪1833骞村彂鏄庣殑锛屼絾鏄敱浜庢儬鏂氱涓涓敤瀹冩潵娴嬮噺鐢甸樆锛屾墍浠ヤ汉浠範鎯笂灏辨妸杩欑鐢垫ˉ绉颁綔浜嗘儬鏂氱數妗ャ瀹為獙鐩殑锛1锛庣啛鎮鐢ㄦ儬鏂氱數妗ユ祴鐢甸樆鐨勫師鐞嗐2锛庢帉鎻J19鍨嬬寮忔儬鏂氱數妗ュ拰AC15鍨嬬洿娴佸灏勫紡妫娴佽鐨勪娇鐢ㄦ柟娉曘傚簲鐢細搴旂敤鍦ㄧО閲嶆娴嬪厓浠朵笂銆傛敞鎰忎簨椤癸細璋冭妭鏃跺簲鍏堢矖璋...
绛旓細鍘熺悊 鎯犳柉閫氱數妗鐨勫钩琛″師鐞嗘槸锛氬綋鐢垫ˉ涓洓涓數闃荤殑姣斿间负涓瀹氬兼椂锛岀數妗ュ钩琛★紝鐢垫祦涓洪浂銆傚綋鐢垫ˉ涓竴涓數闃诲彂鐢熷彉鍖栨椂锛岀數妗ュ皢澶卞幓骞宠 锛岀數娴佸皢娴佽繃鐢垫祦璁°傛牴鎹祴閲忕數娴佸拰鐢垫ˉ涓殑鐢甸樆姣斿硷紝鍙互璁＄畻鍑烘湭鐭ョ數闃荤殑鍊笺傚湪娴嬮噺鐢甸樆娓╁害绯绘暟鏃讹紝鍙互灏嗙數闃绘斁缃湪鎭掓俯娴翠腑锛岄氳繃鏀瑰彉鎭掓俯娴寸殑娓╁害鏉ユ祴閲忕數闃荤殑娓╁害...
绛旓細搴旇璁╃數妗ユ瘮杈冭噦鐢甸樆鏃嬮挳灏介噺澶氬湴浣跨敤锛岃幏寰楁渶澶氭湁鏁堟暟瀛楋紝鎻愰珮娴嬮噺绮惧害銆鎯犳柉鐧荤數妗姣旂巼鑷傞夊彇鍘熷垯锛氬鏋滅敤鐨勬槸6鍦堢數闃荤锛屽簲閫夋嫨姣旂巼浣縍o鏈変簲浣嶆湁鏁堟暟瀛椼備竴鑸儏鍐典笅鍊嶇巼鐨勯夊彇瑕佷娇鑳借鍙栧洓浣嶆湁鏁堟暟瀛椼傚鏋滀笉鎸夌収鎯犳柉閫氱數妗姣旂巼鑷傜殑鍊嶇巼鍊肩殑閫夊彇鍘熷垯锛屾祴閲忕粨鏋滀細鏈夎宸紝鏈夋晥鏁板瓧閫夊彇涓嶅瀵艰嚧缁撴灉涓嶅噯纭
