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mV\uff08\u8fd9\u4e5f\u662f\u5404\u79cd\u5404\u6837IC\u7ec4\u6210\u4e2d\u95f4\u7684\u6700\u597d\u6539\u5584\uff09\u3002\u4f9d\u636e\u6b64\u9879\u79d1\u5b66\u7814\u7a76\uff0c\u5f53\u8fd0\u7528\u8def\u9762\u7f51\u683c\u6280\u672f\u65f6\uff0c\u7ebf\u8def\u677f\u8f90\u5c04\u6e90\u964d\u4f4e\u4e86\u7ea67 dB\u3002\u76f8\u5173\u6b64\u79d1\u5b66\u7814\u7a76\u7684\u5927\u91cf\u8be6\u7ec6\u8d44\u6599\uff0c\u5ba2\u6237\u7a0b\u5e8fHenry W. Ott\u7684\u7535\u78c1\u517c\u5bb9\u6d4b\u8bd5\u6027\u6c34\u5229\u5de5\u7a0b\u7684\u7b2c10.5.3\u8282\u3002<\/p>\n<p>\n\t\u4e3a\u4e86\u66f4\u597d\u5730\u663e\u7740\u51cf\u5c11\u63a5\u5730\u88c5\u7f6e\u7535\u6e90\u7535\u8def\u7535\u611f\u5668\uff0c\u5e94\u5e94\u75280.5\u82f1\u5c3a\u6216\u66f4\u5c0f\u7684\u63a5\u5730\u88c5\u7f6e\u7f51\u683c\u56fe\u95f4\u9694\u3002\u901a\u5e38\uff0c\u4f34\u968f\u7740\u8f93\u51fa\u529f\u7387\u7684\u63d0\u5347\uff0c\u5927\u5bb6\u5f88\u6709\u53ef\u80fd\u5fc5\u987b\u5e94\u7528\u66f4\u7ec6\u81f4\u7684\u7f51\u683c\u56fe\u6765\u7ed9\u4e88\u5927\u91cf\u7684\u5e76\u884c\u5904\u7406\u9014\u5f84\u5e76\u51cf\u5c11\u63a5\u5730\u4fdd\u62a4\u7535\u611f\u5668\u3002\u63a5\u5730\u88c5\u7f6e\u7f51\u683c\u6280\u672f\u4e0e\u8f93\u51fa\u529f\u7387\u8fbe\u523010 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src=\"\/wp-content\/uploads\/2021\/12\/20211215130535-61b9e81fadc6c.png\" \/><\/p>\n<p>\n\t\u56fe4\u3002\u7167\u7247\u7531\u8a79\u59c6\u65af\u7ed9\u4e88\u6765\u6e90\u4e8e\u5feb\u901f\u6570\u5b57\u8bbe\u8ba1\u7684Johnson\u548cMartin 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