单臂电桥与双臂电桥各适用于测什么阻值的电阻 单臂电桥适用于测量什么范围的电阻
\u5355\u81c2\u7535\u6865\u4e0e\u53cc\u81c2\u7535\u6865\u5404\u9002\u7528\u4e8e\u6d4b\u4ec0\u9ebd\u963b\u503c\u7684\u7535\u963b\u5355\u81c2\u7535\u6865\u4e3b\u8981\u7528\u6765\u6d4b\u91cf\u6bd4\u8f83\u5927\u7684\u7535\u963b\u3002
\u53cc\u81c2\u7535\u6865\u7ed3\u5408\u201c\u56db\u7aef\u63a5\u53e3\u201d\u6cd5\u548c\u60e0\u65af\u987f\u7535\u6865\uff0c\u53ef\u5f88\u7cbe\u786e\u7684\u6d4b\u91cf1-1*10~-5\u6b27\u59c6\u7684\u7535\u963b\u3002
\u5355\u81c2\u7535\u6865\u9002\u7528\u4e8e\u6d4b\u91cf\u4e2d\u7b49\u963b\u503c\uff0810\uff5e10^6\u6b27\u59c6\uff09\u7684\u7535\u963b\u3002
\u82e5\u8981\u6d4b\u91cf\u66f4\u5927\u963b\u503c\u7684\u7535\u963b\uff0c\u4e00\u822c\u91c7\u7528\u9ad8\u7535\u963b\u7535\u6865\u6216\u5146\u6b27\u8868\uff1b\u800c\u8981\u6d4b\u91cf\u963b\u503c\u8f83\u5c0f\u7684\u7535\u963b\uff0c\u4e00\u822c\u91c7\u7528\u53cc\u81c2\u7535\u6865\uff08\u5f00\u5c14\u6587\u7535\u6865\uff09\u3002
\u7535\u6865\u51c6\u786e\u5ea6\u9ad8\u3001\u7a33\u5b9a\u6027\u597d\uff0c\u6240\u4ee5\u88ab\u5e7f\u6cdb\u7528\u4e8e\u7535\u78c1\u6d4b\u91cf\u3001\u81ea\u52a8\u8c03\u8282\u548c\u81ea\u52a8\u63a7\u5236\u4e2d\u3002\u60e0\u65af\u767b\u5355\u81c2\u7535\u6865\u662f\u6700\u57fa\u672c\u7684\u76f4\u6d41\u5355\u81c2\u7535\u6865\u3002\u76f4\u6d41\u5355\u81c2\u7535\u6865\u8def\u3002
\u6269\u5c55\u8d44\u6599
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\u53cc\u81c2\u7535\u6865\uff1a\u5373\u6709\u4e24\u4e2a\u7535\u963b\u662f\u5f85\u6c42\u6216\u672a\u77e5\u6216\u53d8\u5316\u7684\u3002
\u5047\u8bbe\u56db\u4e2a\u7535\u963b\u56fa\u5b9a\uff0c\u5f53s\u95ed\u5408\u65f6\uff0c\u82e5\u6ee1\u8db3\uff1a\u201cR3*R2=R1*R4\u201d\uff0c\u5373\u5bf9\u89d2\u7684\u7535\u963b\u4e58\u79ef\u76f8\u7b49\uff0c\u5219\u6b64\u65f6Uad\u7b49\u4e8e0\uff0c\u5c31\u662fad\u95f4\u6ca1\u6709\u7535\u538b\u3002\u5229\u7528\u8fd9\u4e2a\u539f\u7406\uff0c\u5f53\u7b49\u5f0f\u4e24\u8fb9\u56db\u4e2a\u91cf\u4e2d\u7684\u4e00\u4e2a\u4e3a\u672a\u77e5\u91cf\u7684\u65f6\u5019\uff0c\u5982\u679c\u8c03\u8282\u5176\u4f59\u4e09\u4e2a\u7535\u963b\u7684\u503c\u80fd\u4f7f\u5f97\u7b49\u5f0f\u6210\u7acb\uff0c\u90a3\u4e48\u7528\u516c\u5f0f\u5c31\u53ef\u4ee5\u5f97\u5230\u672a\u77e5\u91cf\u3002
\u4f46\u662f\u5b9e\u9645\u4e0a\u53ea\u8981\u7b49\u5f0f\u4e24\u8fb9\u5404\u6709\u4e00\u4e2a\u53ef\u4ee5\u8c03\u8282\u7684\u53ef\u53d8\u7535\u963b\uff0c\u90a3\u4e48\u53e6\u5916\u4e24\u4e2a\u7535\u963b\u6709\u4e00\u4e2a\u662f\u5b9a\u503c\uff0c\u5219\u4f59\u4e0b\u7684\u53e6\u5916\u4e00\u4e2a\u5fc5\u7136\u53ef\u4ee5\u5f97\u5230\u3002\u7528\u8fd9\u4e2a\u539f\u7406\u53ef\u4ee5\u505a\u6210\u7535\u963b\u6d4b\u91cf\u7bb1\u3002
\u53c2\u8003\u8d44\u6599\u6765\u6e90\uff1a\u641c\u72d7\u767e\u79d1-\u7535\u6865
双臂电桥结合“四端接口”法和惠斯顿电桥，可很精确的测量1-1*10~-5欧姆的电阻。
绛旓細鍗曡噦鐢垫ˉ涓昏鐢ㄦ潵娴嬮噺姣旇緝澶х殑鐢甸樆銆傚弻鑷傜數妗ョ粨鍚堚滃洓绔帴鍙ｂ濇硶鍜屾儬鏂】鐢垫ˉ锛屽彲寰堢簿纭殑娴嬮噺1-1*10~-5娆у鐨勭數闃汇
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绛旓細鍗曡噦鐢垫ˉ閫傜敤浜庢祴閲忎腑绛夐樆鍊硷紙10锝10^6娆у锛夌殑鐢甸樆銆傝嫢瑕佹祴閲忔洿澶ч樆鍊肩殑鐢甸樆锛屼竴鑸噰鐢ㄩ珮鐢甸樆鐢垫ˉ鎴栧厗娆ц〃锛涜岃娴嬮噺闃诲艰緝灏忕殑鐢甸樆锛屼竴鑸噰鐢鍙岃噦鐢垫ˉ锛堝紑灏旀枃鐢垫ˉ锛夈傜數妗ュ噯纭害楂樸佺ǔ瀹氭уソ锛屾墍浠ヨ骞挎硾鐢ㄤ簬鐢电娴嬮噺銆佽嚜鍔ㄨ皟鑺傚拰鑷姩鎺у埗涓傛儬鏂櫥鍗曡噦鐢垫ˉ鏄渶鍩烘湰鐨勭洿娴佸崟鑷傜數妗ャ傜洿娴佸崟鑷傜數妗ヨ矾銆
