你对大学物理实验直流单电桥有何改进想法
\u5927\u5b66\u7269\u7406\u5b9e\u9a8c\u4e2d\u53cc\u81c2\u7535\u6865\u4e0e\u60e0\u65af\u901a\u7535\u6865\u7684\u533a\u522b\u662f\u4ec0\u4e48\uff1f\u53cc\u81c2\uff0c\u6d4b\u91cf\u963b\u503c\u7684\u8303\u56f4\uff0c\u5728\u6570\u91cf\u7ea7\u4e0a\uff0c\u5c0f\u4e8e\u60e0\u65af\u987f\u3002\u963b\u503c\u5728\u5c0f\u6570\u70b9\u4ee5\u4e0a\u7684\uff0c\u7528\u60e0\uff1b\u5c0f\u6570\u70b9\u4ee5\u4e0b\u7684\uff0c\u7528\u53cc\u81c2[\u53ef\u542b1\u4f4d\u6570]\u3002\u4e24\u79cd\u7535\u6865\uff0c\u5728\u91cf\u7a0b\u4e0a\u6709\u5206\u5de5\u3001\u63a5\u529b\u7684\u6548\u679c\u548c\u5fc5\u8981\u3002
\u53cc\u81c2\u6d4b\u91cf\u7cbe\u5ea6\u53ef\u8fbe\u5c0f\u6570\u70b93\u30014\u4f4d\u3002
\u60e0\uff0c\u4e0d\u5fc5\u8003\u8651\u6d4b\u91cf\u63a5\u7ebf\u7535\u963b\u5f15\u8d77\u7684\u6d4b\u91cf\u8bef\u5dee\u3002\u4f46\u662f\u5982\u679c\u7528\u60e0\u7684\u539f\u7406\u505a\u6210\u7684\u7535\u6865\u6765\u6d4b\u5c0f\u7535\u963b\uff0c\u63a5\u7ebf\u7535\u963b\u7684\u8bef\u5dee\u5c06\u4e25\u91cd\u5f71\u54cd\u6d4b\u91cf\u7cbe\u5ea6\u3002
\u53cc\u81c2\uff0c\u4ece\u8bbe\u8ba1\u539f\u7406\u548c\u5b9e\u9645\u64cd\u4f5c\u4e0a\uff0c\u901a\u8fc7\u201c\u5bf9\u7b49\u7684\u5e73\u8861\u2018\uff0c\u53ef\u4ee5\u907f\u514d\u63a5\u7ebf\u7535\u963b\u672c\u8eab\u5e26\u6765\u7684\u8bef\u5dee\u3002
\u6309\u4f60\u7ed9\u7684\u56fe\uff0c\u5e94\u4e3a R1/Rx=R3/R2,\u5f97Rx=R1R2/R3
\u82e5\u5c06\u5bf9\u89d2\u7ebfAC\u4e0e\u5bf9\u89d2\u7ebfBD\u95f4\u7684\u63a5\u7ebf\u5bf9\u6362\uff0c\u5219\u4e3a R1/R3=Rx/R2,\u8fd8\u662f\u5f97Rx=R1R2/R3
你不会是同济物理系的吧……
绛旓細鐩存祦鍗曡噦鐢垫ˉ鐨勫钩琛℃潯浠舵槸鐢垫ˉ鐩稿鑷傜數闃荤殑涔樼Н鐩哥瓑锛涚洿娴佸崟鑷傜數妗ョ殑浼樼偣锛氱伒鏁忓害楂樸佸噯纭害楂銆傚崟鑷傜數妗ラ噰鐢ㄦ亽娴佹簮渚涚數锛岃繖鏍风數妗ョ殑杈撳嚭涓嶅彈娓╁害鐨勫奖鍝嶃傚崟鑷傜數妗ユ娴嬪嚭鐢甸樆鐨勫彉鍖栧悗锛岀粡杩囧樊鍒嗘斁澶у櫒锛岃緭鍑轰俊鍙峰啀缁忚繃鐢靛帇鐢垫祦鐨勮浆鎹紝鍙樻崲鎴愮浉搴旂殑鐢垫祦锛岃鐢垫祦淇″彿閫氳繃闈炵嚎鎬х煫姝ｇ數璺殑琛ュ伩锛屽嵆浜х敓涓庤緭鍏ヤ俊鍙...
绛旓細鎺㈢储绮惧瘑绉戞妧锛鐩存祦鐢垫ˉ鐨勯瓍鍔涜В鏋愮洿娴佺數妗ワ紝杩欎釜鍑濊仛浜鐗╃悊瀛︽櫤鎱х殑鍚嶈瘝锛屼簬2019骞村喘闇插ご瑙掞紝瀹冧笓涓虹簿瀵嗙數闃绘祴閲忚岀敓锛屽挨鍏舵槸瀵逛簬鐩存祦鐢甸樆鍙婂叾鍙樺寲鐨勯珮鏁堟崟鎹夈傚畠骞堕潪浼犵粺鐨勬蹇碉紝鑰屾槸鎯犳柉鐧荤數妗ユ妧鏈殑闈╂柊鍗囩骇锛屼互鐜颁唬绮惧瘑鍚堥噾缁曠嚎鐢甸樆浣滀负鏍稿績鍏冧欢锛岀‘淇濅簡娴嬮噺绮惧害涓庣ǔ瀹氭с傚叾涓紝鏁板瓧鐩存祦鐢垫ˉ鏇存槸寮曚汉娉ㄧ洰銆
绛旓細鐩存祦鐢垫ˉ鏄竴绉嶇敤姣旇緝娉曟祴閲忕數闃荤殑浠櫒锛屼富瑕佺敱姣斾緥鑷傘佹瘮杈冭噦銆佹娴佽绛夋瀯鎴愭ˉ寮忕嚎璺紝娴嬮噺鏃跺皢琚祴閲忎笌閲忚繘灞曟瘮杈冭屽緱鍒板緱娴嬮噺缁撴灉锛屽洜鑰屾祴閲忕簿搴﹂珮锛屽姞涓婃柟娉曞阀濡欙紝浣跨敤鏂逛究锛屾墍浠ュ緱鍒板箍娉涘簲鐢紝鑷粍寮忕洿娴佺數妗ユ祴鐢甸樆瀹為獙鐨勬剰涔夋槸鎺屾彙鐩存祦鐢垫ˉ鐨勫師鐞嗗拰鐗圭偣锛屽浼氱敤鑷粍鐢垫ˉ鍜岀寮忕數妗ユ祴鐢甸樆鐨勬柟娉曘
绛旓細鐩存祦鐢垫ˉ鏄竴绉嶆瘮杈冨紡鐨勬祴閲忎华鍣紝涓昏鐢ㄤ簬娴嬮噺鐢甸樆锛屽叾鐏垫晱搴﹀拰鍑嗙‘搴﹂兘寰堥珮銆傚畠鍒嗕负鐩存祦鍗曡噦鐢垫ˉ鍜岀洿娴佸弻鑷傜數妗ヤ袱绉嶃傜洿娴佸崟鑷傜數妗ュ張绉版儬鏂櫥鐢垫ˉ锛屽畠閫傜敤浜庢祴閲1惟锝1M惟鐨勪腑闃诲肩數闃汇傜洿娴佸弻鑷傜數妗ュ張绉板嚡灏旀枃鐢垫ˉ锛屽畠閫傜敤浜庢祴閲忎綆闃诲硷紙1惟浠ヤ笅锛夌殑灏忕數闃伙紝濡傜煭瀵肩嚎鐢甸樆銆佸ぇ涓瀷鐢垫満鍜屽彉鍘嬪櫒缁曠粍鐨勭數闃...
绛旓細1銆佷氦娴佺數妗ュ湪娴嬮噺鏃堕櫎浜嗚婊¤冻闃绘姉妯＄浉绛夌殑鏉′欢锛岃繕瑕佹弧瓒充竴瀹氱殑闃绘姉瑙掓潯浠讹紝鍗充綋鐜板湪娴嬮噺瀹炶返涓氨鏄繀椤昏皟鑺備袱涓厓浠舵柟鑳戒娇鐢垫ˉ骞宠 锛岃鐩存祦鐢垫ˉ鍙渶璋冩暣涓涓弬鏁板嵆鍙2銆佽嫢鎯虫敼鍙樹竴涓洓鑷傜洿娴佺數妗ョ殑鎬ц川鏄笉鍙兘鐨勶紝瀹冧滑鍙兘鍋氭暟閲忎笂鐨勫彉鍖栥備絾瀵逛簬浜ゆ祦鍥涜噦鐢垫ˉ鏉ヨ锛屽畠鐨勫鏁版ˉ鑷傚彲浠ユ槸R,L,C缁勬垚...
绛旓細鐩存祦鐢垫ˉ鏄繛鎺ョ洿娴佺數婧愮殑鑳界敤姣旇緝娉曟祴閲忓悇绉嶉噺锛堝鐢甸樆銆佺數瀹广佺數鎰熺瓑锛夌殑浠櫒銆傛槸鐢卞洓涓敮璺粍鎴愮殑鐢佃矾銆傛湁涓鐢甸樆R锛屼竴瀵硅绾夸腑鎺ュ叆鐩存祦鐢垫簮U锛屽彟涓瀵硅绾挎帴鍏ユ娴佽G銆傜洿娴佺數妗ョ殑骞宠 鏉′欢鏄湪鍥涜竟褰㈢殑涓鏉″瑙掔嚎涓ょ鎺ヤ笂鐢垫簮锛屽彟涓鏉″瑙掔嚎涓ょ鎺ユ寚闆朵华鍣ㄣ傝皟鑺傛ˉ鑷備笂鏌愪簺鍏冧欢鐨勫弬鏁板硷紝浣挎寚闆朵华...
绛旓細鐢垫ˉ娉曟祴鐢甸樆鐨勫師鐞嗙數妗ョ數璺槸鐢电娴嬮噺涓數璺繛鎺ョ殑涓绉嶅熀鏈柟寮忋傜敱浜庡畠娴嬭瘯鐏垫晱锛屾祴閲忓噯纭紝浣跨敤鏂逛究锛屾墍浠ュ緱鍒板箍娉涘簲鐢ㄣ鐢垫ˉ鏈鐩存祦鍜屼氦娴佷箣鍒嗭紝鐩存祦鐢垫ˉ涓昏鐢ㄤ簬娴嬮噺鐢甸樆銆鐩存祦鍗曠數妗甯哥О鎯犳柉鐧荤數妗ワ紝鐢ㄤ簬1锝106W鑼冨洿涓肩數闃绘祴閲忥紱鐩存祦鍙岀數妗ュ父绉板紑灏旀枃鐢垫ˉ锛岀敤浜10-3锝1W鑼冨洿浣庡肩數闃绘祴閲忋備氦娴佺數妗ラ櫎娴...
绛旓細鐩存祦鐢垫ˉ骞宠 鏉′欢锛氱數妗ョ數璺殑涓昏鐗圭偣灏辨槸褰撳洓涓ˉ鑷傜數闃荤殑闃诲兼弧瓒充竴瀹氬叧绯绘椂锛屼細浣挎帴鍦ㄥ瑙掔嚎a銆乥闂寸殑鐢甸樆R涓病鏈夌數娴侀氳繃銆傝繖绉嶆儏鍐电О骞宠 鐘舵併傜壒鐐癸細鐢垫簮閲囩敤鐩存祦锛屾祴閲忕數璺娇鐢ㄧ殑鐢垫簮涔熸槸鐩存祦锛岃屼笖鍏惰〃澶淬佹瘮杈冭噦銆佹瘮渚嬭噦娴佽繃鐨勭數娴佹ц川閮芥槸鐩存祦銆備氦娴佺數妗 瑙ｉ噴锛氶亾鐞嗕笌鐩存祦鐩镐技锛屼笉杩囨ˉ鑷備笂鍙兘...
绛旓細鐩存祦鍗曡噦鐢垫ˉ锛屼篃绉颁负鎯犳柉閫氱數妗ワ紝鏄竴绉嶇敤浜庢祴閲忕數闃荤殑绮惧瘑浠櫒銆傚叾宸ヤ綔鍘熺悊鏄氳繃璋冭妭妗ヨ噦涓婄殑鐢甸樆锛屼娇鐢垫ˉ杈惧埌骞宠 鐘舵侊紝浠庤屾牴鎹凡鐭ョ數闃诲兼帹绠楀嚭寰呮祴鐢甸樆鐨勯樆鍊笺傜敱浜庣數妗ョ粨鏋勭殑鐗规э紝瀹冨浜庡井灏忕殑鐢甸樆鍙樺寲鏋佷负鏁忔劅锛屽洜姝ゅ父琚敤浜庨珮绮惧害娴嬮噺鍦哄悎銆傚湪瀹為檯搴旂敤涓紝鐩存祦鍗曡噦鐢垫ˉ鑳藉娴嬮噺鐨勬渶灏忕數闃诲彈鍒板涓...
绛旓細鍗曡噦鐢垫ˉ鐨勬祴閲忓璞′富瑕佹槸涓肩數闃伙紝瀵煎嚭鍏紡鐨勬潯浠跺彧鑳借鏄娴佽G=0.鍙岃噦鐢垫ˉ鐨勬祴閲忓璞″彲浠ユ槸浣庡肩數闃伙紝鍏紡鐨勫墠鎻愭槸姣斾緥鑷備笂鐨勭數闃诲繀椤昏繙杩滃ぇ浜庤繛鎺ョ數璺殑瀵肩嚎鐢甸樆銆傚崟妗ョ殑璇樊鏉ユ簮浜庡绾跨數闃诲拰妫娴佽鐨勭伒鏁忓害锛屽弻妗ョ殑璇樊涓昏鏉ユ簮浜庣儹鐢甸樆鍜岀數鍔垮樊甯︽潵鐨勪竴浜涘壇鏁堝簲銆
