{"id":2999,"date":"2024-09-11T14:57:41","date_gmt":"2024-09-11T06:57:41","guid":{"rendered":"https:\/\/www.unictron.com\/ultrasonic-transducers\/?page_id=2999"},"modified":"2025-11-24T13:20:17","modified_gmt":"2025-11-24T05:20:17","slug":"%e8%b6%85%e9%9f%b3%e6%b3%a2%e6%b0%a3%e9%ab%94%e6%bf%83%e5%ba%a6%e6%84%9f%e6%b8%ac","status":"publish","type":"page","link":"https:\/\/www.unictron.com\/ultrasonic-transducers\/piezoelectric-technologies\/%e8%b6%85%e9%9f%b3%e6%b3%a2%e6%b0%a3%e9%ab%94%e6%bf%83%e5%ba%a6%e6%84%9f%e6%b8%ac\/?lang=zh-hant","title":{"rendered":"\u8d85\u97f3\u6ce2\u6c23\u9ad4\u6fc3\u5ea6\u611f\u6e2c"},"content":{"rendered":"\n
    \n
  1. \u6c23\u9ad4\u6fc3\u5ea6\u611f\u6e2c\u6982\u8ff0<\/li>\n<\/ol>\n\n\n\n

        \u96a8\u8457\u4eba\u5011\u5c0d\u65bc\u74b0\u5883\u4fdd\u8b77\u8d8a\u4f86\u8d8a\u91cd\u8996\uff0c\u5e36\u52d5\u6c23\u9ad4\u6fc3\u5ea6\u611f\u6e2c\u5e02\u5834\u84ec\u52c3\u767c\u5c55\uff0c\u6240\u8b02\u6c23\u9ad4\u6fc3\u5ea6\u611f\u6e2c\u662f\u5c07\u6c23\u9ad4\u4e2d\u542b\u6709\u7684\u7279\u5b9a\u6c23\u9ad4\u4ee5\u9069\u7576\u7684\u5143\u4ef6\u8f49\u63db\u6210\u53ef\u76e3\u6e2c\u6216\u8a08\u91cf\u7684\u8a0a\u865f\u3002\u6c23\u9ad4\u6fc3\u5ea6\u611f\u6e2c\u5668\u5728\u74b0\u5883\u8207\u5de5\u696d\u4e4b\u7528\u9014\u751a\u5ee3\uff0c\u5c0d\u65bc\u707d\u5bb3\u9632\u6cbb\u3001\u5de5\u4f5c\u4eba\u54e1\u5b89\u5168\u8207\u5065\u5eb7\u7dad\u8b77\u3001\u6c61\u67d3\u9632\u6cbb\u7b49\u65b9\u9762\u7686\u5177\u6709\u76f8\u7576\u4e4b\u91cd\u8981\u6027\u3002\u65e5\u5e38\u751f\u6d3b\u4e2d\uff0c\u5927\u90e8\u5206\u6c23\u9ad4\u7121\u8272\u7121\u5473\uff0c\u8207\u4eba\u9ad4\u606f\u606f\u76f8\u95dc\u7684\u4e8c\u6c27\u5316\u78b3\uff08CO2<\/sub>\uff09\u3001\u6c27\u6c23\uff08O2<\/sub>\uff09\uff0c\u4e43\u81f3\u6709\u5bb3\u6c23\u9ad4\uff0c\u5982\u4e00\u6c27\u5316\u78b3\uff08CO\uff09\uff0c\u53ef\u4ee5\u85c9\u7531\u6c23\u9ad4\u6fc3\u5ea6\u611f\u6e2c\u5668\u5075\u77e5\uff0c\u4ee5\u78ba\u4fdd\u5065\u5eb7\u8207\u4eba\u8eab\u5b89\u5168\uff1b\u800c\u5de5\u696d\u9818\u57df\u4e2d\u5de5\u5ee0\u88fd\u7a0b\u6216\u67d0\u4e9b\u5834\u57df\u4e2d\u5247\u7d93\u5e38\u6703\u4f7f\u7528\u3001\u7522\u751f\u6216\u6392\u653e\u6c2b\u6c23\uff08H2<\/sub>\uff09\u3001\u4e00\u6c27\u5316\u78b3\uff08CO\uff09\u3001\u786b\u6c27\u5316\u7269\uff08SOx<\/sub>\uff09\u3001\u6c2e\u6c27\u5316\u7269\uff08NOx<\/sub>\uff09 \u53ca\u6c28\u6c23\uff08NH3<\/sub>\uff09 \u7b49\u6c61\u67d3\u6027\u8207\u5371\u96aa\u6027\u4e4b\u6c23\u9ad4\uff0c\u9700\u4f7f\u7528\u6c23\u9ad4\u6fc3\u5ea6\u5075\u6e2c\u4ee5\u5c0d\u5de5\u4f5c\u5b89\u5168\u53ca\u4f5c\u696d\u7cbe\u78ba\u7a69\u5b9a\u7b49\u63d0\u4f9b\u95dc\u9375\u8f14\u52a9\u3002<\/p>\n\n\n\n

        \u4e00\u822c\u6c23\u9ad4\u611f\u6e2c\u5668\u4e3b\u8981\u57fa\u65bc\u534a\u5c0e\u9ad4\u6216\u96fb\u5316\u5b78\u6280\u8853\uff0c\u4f9d\u6c23\u9ad4\u7a2e\u985e\u8207\u5075\u6e2c\u7cbe\u5ea6\u9700\u6c42\u800c\u9069\u7528\u4e0d\u540c\u7a2e\u985e\u7684\u6c23\u9ad4\u6fc3\u5ea6\u611f\u6e2c\u5668\u3002\u534a\u5c0e\u9ad4\u5f0f\u6c23\u9ad4\u611f\u6e2c\u5668\u5177\u6709\u53ef\u5075\u6e2c\u6c23\u9ad4\u7a2e\u985e\u591a\u3001\u58fd\u547d\u9577\u3001\u6210\u672c\u4f4e\u4e4b\u7279\u9ede\uff0c\u4f46\u6c23\u9ad4\u7a2e\u985e\u7684\u9078\u64c7\u6027(\u5206\u8fa8\u6027)\u4e0d\u4f73\uff0c\u591a\u7528\u65bc\u53ef\u71c3\u6c23\u9ad4\u6d29\u6f0f\u3001\u7a7a\u6c23\u54c1\u8cea\u5075\u6e2c\u7b49\u9818\u57df\u3002\u96fb\u5316\u5b78\u6280\u8853\u4e4b\u6c23\u9ad4\u611f\u6e2c\u5668\u53ca\u6aa2\u6e2c\u5100\u5668\uff0c\u5247\u662f\u8f03\u9069\u7528\u5728\u7cbe\u5ea6\u8981\u6c42\u8f03\u9ad8\u7684\u4f4e\u6fc3\u5ea6\u6bd2\u6027\u6c23\u9ad4\u3001\u6c27\u6c23\u76e3\u6e2c\u7b49\u9818\u57df\u3002\u53e6\u5916\u8fd1\u5e74\u767c\u5c55\u6bd4\u91cd\u9010\u6f38\u589e\u52a0\u7684\u7d05\u5916\u7dda\u6c23\u9ad4\u611f\u6e2c\u5668\uff0c\u5177\u9078\u64c7\u6027\u597d\u3001\u58fd\u547d\u9577\u4e14\u4e0d\u9700\u5be6\u65bd\u5b9a\u671f\u6821\u6b63\u4e4b\u512a\u52e2\uff0c\u9069\u7528\u65bc\u76e3\u6e2c\u5404\u7a2e\u6613\u71c3\u6613\u7206\u3001\u4e8c\u6c27\u5316\u78b3\u6c23\u9ad4\uff0c\u5728\u5ee3\u6cdb\u9818\u57df\u7684\u9ad8\u7aef\u5e02\u5834\u5360\u6709\u4e00\u5e2d\u4e4b\u5730\uff0c\u7136\u800c\u5176\u7121\u6cd5\u5075\u6e2c\u6c2b\u6c23\u4e14\u6613\u53d7\u6c34\u6c23\u4e4b\u5e72\u64fe\uff0c\u50f9\u4f4d\u4e5f\u76f8\u5c0d\u5176\u5b83\u578b\u5f0f\u6c23\u9ad4\u611f\u6e2c\u5668\u4f86\u7684\u9ad8\uff0c\u898f\u5283\u4f7f\u7528\u4ecd\u6709\u5176\u8003\u91cf\u53ca\u4fb7\u9650\u3002<\/p>\n\n\n\n

        \u8d85\u97f3\u6ce2\u6c23\u9ad4\u6fc3\u5ea6\u611f\u6e2c\u5668\u76f8\u8f03\u5176\u5b83\u985e\u6c23\u9ad4\u6fc3\u5ea6\u611f\u6e2c\u5668\u5177\u6709\u9748\u654f\u5ea6\u9ad8\u3001\u53cd\u61c9\u901f\u5ea6\u5feb\u3001\u7a69\u5b9a\u6027\u597d\u3001\u53ef\u5728\u7dda\u5373\u6642\u6aa2\u6e2c\u3001\u4f4e\u529f\u8017\u3001\u58fd\u547d\u9577\u3001\u4e0d\u6613\u53d7\u6c61\u67d3\u53ca\u78e8\u640d\u7b49\u512a\u9ede\uff0c\u4e26\u4e14\u4e0d\u9808\u50cf\u96fb\u5316\u5b78\u6216\u534a\u5c0e\u9ad4\u6c23\u9ad4\u6fc3\u5ea6\u611f\u6e2c\u5668\u90a3\u6a23\u6bcf1-3\u5e74\u66f4\u63db\u6216\u91cd\u65b0\u6821\u6e96\uff0c\u4e14\u53ef\u904b\u7528\u65bc\u4e0d\u540c\u7a2e\u985e\u6c23\u9ad4\uff0c\u5982\u6c2e\u6c23(N2<\/sub>)\u3001\u6c27\u6c23(O2<\/sub>)\u3001\u6c2b\u6c23(H2<\/sub>)\u3001\u4e00\u6c27\u5316\u6c2e(NO)\u3001\u4e8c\u6c27\u5316\u78b3(CO2<\/sub>)\u3001\u6c2c\u6c23(Ar)\u3001\u6c26\u6c23(He)\u3002\u8d85\u97f3\u6ce2\u6c23\u9ad4\u6fc3\u5ea6\u611f\u6e2c\u5668\u53ef\u6839\u64da\u8d85\u97f3\u6ce2\u5728\u7ba1\u9053\u5167\u50b3\u64ad\u7684\u901f\u5ea6\u8b8a\u5316\u4f86\u6e2c\u91cf\u6c23\u9ad4\u7684\u6fc3\u5ea6\u4e14\u4e0d\u9700\u8981\u5728\u7ba1\u9053\u4e0a\u947d\u5b54\u62bd\u53d6\u6c23\u9ad4\uff0c\u5e38\u898b\u65bc\u901a\u98a8\u6a5f\u3001\u58d3\u7e2e\u6a5f\u548c\u71c3\u6599\u76e3\u6e2c\u5668\u4e2d\uff1b\u53e6\u5916\u9084\u53ef\u4ee5\u540c\u6b65\u7cbe\u6e96\u6e2c\u91cf\u6c23\u9ad4\u6fc3\u5ea6\u8207\u6c23\u9ad4\u6d41\u91cf\uff0c\u9019\u662f\u4f7f\u7528\u8d85\u97f3\u6ce2\u6c23\u9ad4\u6fc3\u5ea6\u611f\u6e2c\u5668\u7684\u7368\u7279\u512a\u52e2\u3002\u6545\u8d85\u97f3\u6ce2\u6c23\u9ad4\u6fc3\u5ea6\u611f\u6e2c\u5668\u5df2\u5ee3\u6cdb\u61c9\u7528\u65bc\u91ab\u7642\u3001\u5de5\u696d\u3001\u5316\u5de5\u3001\u63a1\u7926\u548c\u98df\u54c1\u7b49\u9818\u57df\u7684\u5404\u7a2e\u9700\u8981\u6aa2\u6e2c\u6c27\u6c23\u3001\u4e8c\u6c27\u5316\u78b3\u7b49\u6c23\u9ad4\u6fc3\u5ea6\u548c\u6d41\u91cf\u7684\u8a2d\u5099\u4e2d\u3002\u5176\u7279\u5225\u9069\u7528\u65bc\u5075\u6e2c\u7279\u5b9a\u76ee\u6a19\u6c23\u9ad4\u4e4b\u60c5\u5883\uff0c\u4f8b\u5982\uff1a\u91ab\u7528\u88fd\u6c27\u6a5f\u3001\u5de5\u696d\u88fd\u6c27\u8a2d\u5099\u3001\u63a1\u7926\u74b0\u5883\u4f7f\u7528\u7684\u6c27\u6c23\u6fc3\u5ea6\u6aa2\u6e2c\u8a2d\u5099\u3001\u98df\u54c1\u5132\u5b58\u548c\u88fd\u4f5c\u8a2d\u5099\u7684\u6c27\u6c23\u6fc3\u5ea6\u6aa2\u6e2c\u7b49\u3002\u7e3d\u7684\u4f86\u8aaa\uff0c\u672a\u4f86\u96a8\u8457\u5de5\u696d\u81ea\u52d5\u5316\u6642\u4ee3\u4e4b\u4f86\u81e8\uff0c\u6c23\u9ad4\u6fc3\u5ea6\u611f\u6e2c\u5668\u4e4b\u904b\u7528\u5c07\u6703\u66f4\u52a0\u666e\u904d\uff0c\u611f\u6e2c\u6280\u8853\u4e5f\u6108\u8da8\u9032\u6b65\uff0c\u800c\u8d85\u97f3\u6ce2\u6c23\u9ad4\u6fc3\u5ea6\u611f\u6e2c\u6240\u5177\u5099\u4e4b\u512a\u52e2\uff0c\u5fc5\u7136\u5728\u5e02\u5834\u4e2d\u6709\u5176\u7368\u7279\u5730\u4f4d\u3002<\/p>\n\n\n\n

      \n
    1. \u8d85\u97f3\u6ce2\u6c23\u9ad4\u6fc3\u5ea6\u611f\u6e2c\u5de5\u4f5c\u539f\u7406\u8207\u7279\u6027<\/li>\n<\/ol>\n\n\n\n

      \u5de5\u4f5c\u539f\u7406<\/strong>\uff1a<\/p>\n\n\n\n

      \u8d85\u97f3\u6ce2\u6c23\u9ad4\u6fc3\u5ea6\u5075\u6e2c\u662f\u6e2c\u91cf\u7531\u8d85\u97f3\u6ce2\u767c\u5c04\u5668\uff08TX\uff09\u767c\u51fa\u8d85\u97f3\u6ce2\u4e26\u5728\u6c23\u9ad4\u74b0\u5883\u4e2d\u5230\u9054\u8d85\u97f3\u6ce2\u63a5\u6536\u5668\uff08RX\uff09\u7684\u98db\u884c\u6642\u9593\uff08ToF\uff1bTime of Flight\uff09\u5c31\u53ef\u4ee5\u7b97\u51fa\u6df7\u5408\u6c23\u9ad4\u7684\u8072\u901f\uff0c\u4e26\u85c9\u6b64\u8a08\u7b97\u51fa\u6df7\u5408\u6c23\u9ad4\u7684\u6fc3\u5ea6\uff0c\u57fa\u672c\u67b6\u69cb\u5982\u4e0b\u5716\u793a\u610f\u3002<\/p>\n\n\n

      \n
      \"\"<\/figure><\/div>\n\n\n

      \u7531\u65bc\u4e0d\u540c\u7684\u6c23\u9ad4\u6210\u5206\u5177\u6709\u4e0d\u540c\u7684\u8072\u901f\uff0c\u6211\u5011\u53ef\u4ee5\u901a\u904e\u6e2c\u91cf\u8d85\u97f3\u6ce2\u5728\u6c23\u9ad4\u4e2d\u7684\u8072\u901f\u6216\u98db\u884c\u6642\u9593\uff08ToF\uff09\u7684\u5dee\u7570\u4f86\u5075\u6e2c\u4e8c\u5143\u6df7\u5408\u6c23\u9ad4\u7684\u6fc3\u5ea6\u3002\u9032\u4e00\u6b65\u8aaa\uff0c\u8d85\u97f3\u6ce2\u6c23\u9ad4\u6fc3\u5ea6\u611f\u6e2c\u662f\u5229\u7528\u6c23\u9ad4\u4ecb\u8cea\u7684\u8072\u901fc\u8207\u5176\u6c23\u9ad4\u65b9\u7a0b\u5f0f\u4e4b\u9593\u7684\u95dc\u4fc2(\u53c3\u8003\u65b9\u7a0b\u5f0f1)\uff0c\u53ef\u6e2c\u91cf\u4e8c\u5143\u6df7\u5408\u6c23\u9ad4\u7684\u8072\u901f\u4f86\u8a08\u7b97\u6b64\u4e8c\u7a2e\u6c23\u9ad4\u7684\u9ad4\u7a4d\u6fc3\u5ea6\u3002<\/p>\n\n\n

      \n
      \"\"<\/figure><\/div>\n\n\n

      \u4ee5\u6c2b\u6c23(H2<\/sub>)\u6fc3\u5ea6\u70ba\u4f8b\uff0c\u7531\u65bc\u6c23\u9ad4\u4e2d\u6dfb\u52a0\u4e86H2<\/sub> \u6703\u5c0e\u81f4\u8072\u901f\u589e\u52a0\uff08\u66f4\u77ed\u7684ToF\uff09\uff0c\u53ef\u4ee5\u901a\u904e\u0394ToF\u7372\u5f97H2<\/sub>\u6c23\u9ad4\u6fc3\u5ea6\u3002\u5176\u539f\u7406\u5982\u4e0b\u5716\u6240\u793a\u3002<\/p>\n\n\n

      \n
      \"\"<\/figure><\/div>\n\n\n

      \u7531\u65bc\u4e8c\u5143\u6df7\u5408\u6c23\u9ad4\u8655\u65bc\u76f8\u540c\u7684\u58d3\u529b\u74b0\u5883\u4e0b\uff0c\u53ef\u6839\u64da\u65b9\u7a0b\u5f0f1\u63a8\u5c0e\u65b9\u7a0b\u5f0f2\uff0c<\/p>\n\n\n

      \n
      \"\"<\/figure><\/div>\n\n\n

      \u5982\u679c\u76ee\u6a19\u6c23\u9ad4(Object gas) \u6fc3\u5ea6 \u6bd4\u503c \u70ba \ud835\udce7 \u5247\u53c3\u8003 \u6c23\u9ad4 (r eference gas) \u6fc3\u5ea6\u70ba (1-\ud835\udce7 \u8868\u793a\u70ba\u65b9\u7a0b\u5f0f 3<\/p>\n\n\n

      \n
      \"\"<\/figure><\/div>\n\n\n

      \u5728\u8d85\u97f3\u6ce2\u50b3\u611f\u5668\u767c\u5c04\u63a5\u6536\u8ddd\u96e2L\u56fa\u5b9a\u4e0b\uff0c\u6e2c\u91cf\u98db\u884c\u6642\u9593tR<\/sub>\u53catM<\/sub>\u4ee5\u53d6\u5f97\u53c3\u8003\u6c23\u9ad4\u53ca\u518d\u6df7\u5408\u6c23\u9ad4\u4e4b\u8072\u901f(\u65b9\u7a0b\u5f0f4)\uff0c<\/p>\n\n\n

      \n
      \"\"<\/figure><\/div>\n\n\n

      \u5e36\u5165\u65b9\u7a0b\u5f0f4\u81f3\u98db\u884c\u6642\u9593\u5dee\u7570\u0394t\u8a08\u7b97\u516c\u5f0f (tM<\/sub>-tR<\/sub>)\uff0c\u5f97\u65b9\u7a0b\u5f0f5\uff0c<\/p>\n\n\n

      \n
      \"\"<\/figure><\/div>\n\n\n

      \u5e36\u5165\u65b9\u7a0b\u5f0f2\u3001\u65b9\u7a0b\u5f0f3\u81f3\u65b9\u7a0b\u5f0f5\uff0c\u518d\u7d93\u6cf0\u52d2\u5c55\u958b(Taylor expansion)\u7c21\u5316\u5f97\u65b9\u7a0b\u5f0f6\uff0c<\/p>\n\n\n

      \n
      \"\"<\/figure><\/div>\n\n\n

      \u5176\u4e2d<\/p>\n\n\n\n

      C: speed of sound<\/p>\n\n\n\n

      \ud835\udefe: ratio of specific heat at constant pressure Cp and specific heat at constant volume Cv<\/p>\n\n\n\n

      P: gas pressure<\/p>\n\n\n\n

      \ud835\udf0c: gas density<\/p>\n\n\n\n

      R: molar gas constant<\/p>\n\n\n\n

      T: temperature<\/p>\n\n\n\n

      \ud835\udc40\ud835\udc45: molecular weight of reference gas<\/p>\n\n\n\n

      MM: molecular weight of gas mixtures<\/p>\n\n\n\n

      \ud835\udc40\ud835\udc42: molecular weight of objective gas<\/p>\n\n\n\n

      \ud835\udce7: objective gas concentration<\/p>\n\n\n\n

      <\/p>\n\n\n\n

      \u7531\u7d50\u679c\u53ef\u77e5\uff0c\u76ee\u6a19\u6c23\u9ad4\u6fc3\u5ea6 \ud835\udce7 \u8207\u98db\u884c\u6642\u9593\u5dee \u0394t \u4e4b\u9593\u5b58\u5728\u8fd1\u4f3c\u6b63\u6bd4\u95dc\u4fc2\u3002\u7406\u8ad6\u4e0a\u53ef\u4ee5\u6e2c\u91cf\u6240\u6709\u4e8c\u5143\u6df7\u5408\u6c23\u9ad4\uff0c\u7136\u800c\u5728\u6e2c\u91cf\u8ddd\u96e2\u6709\u9650\u7684\u689d\u4ef6\u4e0b\uff0c\u70ba\u4e86\u5177\u6709\u4e00\u5b9a\u7684\u6642\u9593\u5dee\u7684\u8fa8\u5225\u80fd\u529b\uff0c\u5169\u7a2e\u6c23\u9ad4\u4e4b\u9593\u7684\u6469\u723e\u8cea\u91cf\u5dee\u7570\u61c9\u76f8\u5dee\u8f03\u5927\u70ba\u4f73\u3002<\/p>\n\n\n\n

      \u8d85\u97f3\u6ce2\u6c23\u9ad4\u5075\u6e2c\u50b3\u611f\u5668\u7684\u7279\u6027<\/strong>\uff1a<\/p>\n\n\n\n

        \n
      • \u8010\u7528\u3001\u53ef\u9760\u6027\u9ad8<\/li>\n\n\n\n
      • \u6297\u5e72\u64fe\u80fd\u529b\u5f3a<\/li>\n\n\n\n
      • \u53ef\u5728\u7dda\u5373\u6642\u6aa2\u6e2c<\/li>\n\n\n\n
      • \u7121\u9808\u5b9a\u671f\u6821\u51c6<\/li>\n\n\n\n
      • \u58fd\u547d\u9577<\/li>\n\n\n\n
      • \u6aa2\u6e2c\u7bc4\u570d\u5bec\uff080%~100%\uff09<\/li>\n\n\n\n
      • \u53ef\u540c\u6642\u6aa2\u6e2c\u6fc3\u5ea6\u8207\u6d41\u91cf<\/li>\n<\/ul>\n\n\n\n
          \n
        1. \u8d85\u97f3\u6ce2\u6c23\u9ad4\u6fc3\u5ea6\u5075\u6e2c\u61c9\u7528\u60c5\u5883<\/li>\n<\/ol>\n\n\n\n

              \u8d85\u97f3\u6ce2\u6c23\u9ad4\u50b3\u611f\u5668\u4f5c\u70ba\u7cbe\u6e96\u6e2c\u91cf\u6c23\u9ad4\u6fc3\u5ea6\u8207\u6d41\u91cf\u7684\u50b3\u611f\u5668\uff0c\u53ef\u5ee3\u6cdb\u61c9\u7528\u65bc\u91ab\u7642\u3001\u5de5\u696d\u3001\u5316\u5de5\u3001\u63a1\u7926\u548c\u98df\u54c1\u7b49\u9818\u57df\u7684\u5404\u7a2e\u9700\u8981\u6aa2\u6e2c\u6c27\u6c23\u3001\u4e8c\u6c27\u5316\u78b3\u7b49\u6c23\u9ad4\u6fc3\u5ea6\u548c\u6d41\u91cf\u7684\u8a2d\u5099\u4e2d\u3002\u4f8b\u5982\uff1a\u91ab\u7528\u88fd\u6c27\u6a5f\u3001\u5de5\u696d\u88fd\u6c27\u8a2d\u5099\u3001\u63a1\u7926\u74b0\u5883\u4f7f\u7528\u7684\u6c27\u6c23\u6fc3\u5ea6\u6aa2\u6e2c\u8a2d\u5099\u3001\u98df\u54c1\u5132\u5b58\u548c\u88fd\u4f5c\u8a2d\u5099\u7684\u6c27\u6c23\u6fc3\u5ea6\u6aa2\u6e2c\u7b49\u3002<\/p>\n\n\n\n

              \u53e6\u5916\uff0c\u4eba\u5011\u5c0d\u5c0b\u627e\u66ff\u4ee3\u80fd\u6e90\u7684\u8b70\u984c\u65e5\u76ca\u95dc\u6ce8\uff0c\u5728\u73fe\u6709\u7684\u66ff\u4ee3\u80fd\u6e90\u4e2d\uff0c\u6c2b\u6c23(H2<\/sub>)\u88ab\u8b7d\u70ba\u6700\u6c38\u7e8c\u7684\u80fd\u6e90\u4e4b\u4e00\uff0c\u4ee5\u6c2b\u71c3\u6599\u70ba\u52d5\u529b\u7684\u71c3\u6599\u96fb\u6c60\uff0c\u7531\u5168\u7403\u77e5\u540d\u5927\u5ee0\u6b63\u5728\u8a2d\u8a08\u548c\u5be6\u65bd\u4e2d\uff0c\u4e26\u4e14\u5728\u65e5\u672c\u9810\u4f30\u81f32050\u5e74\uff0c\u7406\u60f3\u7684H2<\/sub>\u7d93\u6fdf\u8a08\u756b\u5c07\u5168\u9762\u5be6\u65bd\uff1b\u56e0\u6b64\uff0c\u6c2b\u6c23\u5c07\u88ab\u7528\u4f5c\u904b\u8f38\u71c3\u6599\u3001\u5de5\u696d\u3001\u4f4f\u5b85\u767c\u96fb\u548c\u4f9b\u71b1\u4e4b\u7528\u3002\u6c23\u614b\u6c2b\u6c23\u4f5c\u70ba\u80fd\u6e90\u7684\u5ee3\u6cdb\u4f7f\u7528\u610f\u5473\u8457\u6c2b\u6c23\u7684\u5132\u5b58\u548c\u8655\u7406\u5c07\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\uff0c\u6c2b\u6c23\u662f\u900f\u904e\u7ba1\u9053\u904b\u8f38\uff0c\u7531\u65bc\u6c2b\u6c23\u662f\u4e00\u7a2e\u7121\u8272\u3001\u7121\u81ed\u3001\u7121\u5473\u7684\u7206\u70b8\u6027\u6c23\u9ad4\uff0c\u56e0\u6b64\u5728\u7ba1\u9053\u8868\u9762\u4e0d\u6253\u5b54\u7684\u60c5\u6cc1\u4e0b\u6e2c\u91cf\u6c2b\u6c23\u6c23\u9ad4\u6fc3\u5ea6\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u8d85\u97f3\u6ce2\u6c23\u9ad4\u6fc3\u5ea6\u50b3\u611f\u5668\u5373\u53ef\u6839\u64da\u8d85\u97f3\u6ce2\u5728\u7ba1\u9053\u5167\u50b3\u64ad\u7684\u8b8a\u5316\u901f\u5ea6\u5be6\u73fe\u6e2c\u91cf\u6c23\u9ad4\u7684\u6fc3\u5ea6\u4e14\u4e0d\u9700\u8981\u5728\u7ba1\u9053\u4e0a\u947d\u5b54\u62bd\u53d6\u6c23\u9ad4\uff0c\u5728\u6b64\u6f5b\u5728\u5e02\u5834\u4e2d\u5df2\u662f\u5177\u5099\u4e00\u5b9a\u512a\u52e2\u3002<\/p>\n\n\n\n

            \n
          1. \u8d85\u97f3\u6ce2\u6c23\u9ad4\u6d41\u91cf\u8207\u6fc3\u5ea6\u5075\u6e2c\u7cfb\u7d71\u958b\u767c<\/li>\n<\/ol>\n\n\n\n

            \u8d85\u97f3\u6ce2\u6c23\u9ad4\u6d41\u91cf\u8207\u6fc3\u5ea6\u91cf\u6e2c\u9700\u8981\u4e00\u5957\u9ad8\u7cbe\u5bc6\u7684\u4fe1\u865f\u91cf\u6e2c\u7cfb\u7d71\u91cf\u6e2c\u4fe1\u865f\u53ca\u6f14\u7b97\u6d41\u91cf\uff0c\u4e00\u822c\u53ef\u9078\u64c7\u9069\u7528\u65bc\u5075\u6e2c\u8d85\u97f3\u6ce2\u6c23\u9ad4\u6d41\u91cf\u7684\u516c\u7248\u6e2c\u8a66\u96fb\u8def\uff0c\u4f8b\u5982 TI EVM430-FR6043\uff0c\u5982\u4e0b\u5716\u6240\u793a\uff1a<\/p>\n\n\n

            \n
            \"\"<\/figure><\/div>\n\n\n

            \u96fb\u8def\u677fEVM430-FR6043\u7684\u91cf\u6e2c\u7cbe\u5ea6\u53ef\u9054\u5230\u00b1250 \u76ae\u79d2(pico second, 10-12<\/sup>\u79d2)\uff0c\u53ef\u5e6b\u52a9\u6211\u5011\u7cbe\u78ba\u7684\u91cf\u6e2c\u6c23\u9ad4\u6d41\u91cf\u8a08\u4e2d\u91cd\u8981\u7684\u6027\u80fd\u53c3\u6578\uff0c\u5982\u6383\u983b\u91cd\u5408\u5ea6\uff0cADC \u5cf0\u503c\uff0c\u53ca\u975c\u614b\u96f6\u9ede\u98c4\u79fb(ZFD)\u7b49\uff0c\u4e0b\u5716\u662f\u8a60\u696d\u79d1\u6280\u958b\u767c\u7684\u9ad8\u6027\u80fd\u53ca\u9ad8\u53ef\u9760\u5ea6\u7684\u8d85\u97f3\u6ce2\u50b3\u611f\u5668A200M3\uff0c\u5176\u5de5\u4f5c\u983b\u7387\u7d04\u70ba200 kHz\uff0c\u4f7f\u7528EVM430-FR6043\u6e2c\u8a66\u7684\u7d50\u679c\uff1a<\/p>\n\n\n\n

            \n
            \n
            \"\"
            \u6383\u983b\u91cd\u5408\u5ea6 (A200M3)<\/figcaption><\/figure>\n<\/div>\n\n\n\n
            \n
            \"\"
            ADC\u5cf0\u503c (A200M3)<\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n\n

            (\u0394ToF = 0.73 ns)<\/p>\n\n\n

            \n
            \"\"
            \u975c\u614b\u96f6\u9ede\u98c4\u79fbZFD (A200M3)<\/figcaption><\/figure><\/div>\n\n\n

            \u4ee5\u9023\u7e8c\u6027\u5075\u6e2c\u6c27\u6c23\u6fc3\u5ea6\u70ba\u4f8b\uff0c\u7576\u7ba1\u9053\u5185\u975c\u6b62\u6642\uff0c\u6c23\u9ad4\u53ea\u6709\u7a7a\u6c23\uff0c\u5927\u7d04\u542b21%\u7684\u6c27\u6c23\uff0c\u53ef\u5c07\u5176\u4f5c\u70ba\u7cfb\u7d71\u7684\u57fa\u6e96\u9ede\uff0c\u4ee5\u6b64\u72c0\u614b\u4e0b\u4e4b\u7d55\u5c0dToF\u6578\u503c\u53d6\u5f97tR<\/sub>\u53cacR<\/sub>\uff1b\u7576\u6c27\u6c23\u958b\u59cb\u5728\u6d41\u9053\u5167\u901a\u904e\u6642\uff0c\u7d55\u5c0dToF\u4ea6\u8ddf\u8457\u8b8a\u5316\uff0c\u6b64\u6642\u4e4b\u7d55\u5c0dToF\u6578\u503c\u70batM<\/sub>\uff0c\u5982\u6b64\u5373\u53ef\u5efa\u7acb\u9023\u7e8c\u6027\u6c27\u6fc3\u5ea6\u5075\u6e2c\u3002<\/p>\n\n\n

            \n
            \"\"
            \u9023\u7e8c\u6027\u6c27\u6fc3\u5ea6\u76e3\u63a7\u5716<\/figcaption><\/figure><\/div>\n\n\n
              \n
            1. \u8d85 \u97f3 \u6ce2 \u6c23\u9ad4\u6fc3\u5ea6\u5075 \u6e2c \u50b3\u611f \u5668 \u554f\u984c\u8207\u8a3a\u65b7<\/li>\n<\/ol>\n\n\n\n

              <\/p>\n\n\n\n

                \n
              • \u5f9e\u65b9\u7a0b\u5f0f1\u53ef\u770b\u51fa\u6eab\u5ea6\u4ea6\u70ba\u5f71\u97ff\u6fc3\u5ea6\u8a08\u7b97\u4e4b\u8981\u7d20\u4e4b\u4e00\uff0c\u627f\u4e0a\u8ff0\u6848\u4f8b\uff0c\u7cfb\u7d71\u4e2d\u6bcf1\u00b0C\u7684\u6e2c\u91cf\u8aa4\u5dee\uff0c\u6c27\u6fc3\u5ea6\u6578\u503c\u5c31\u6703\u7522\u751f\u7d042.75%\u7684\u8aa4\u5dee\uff0c\u56e0\u6b64\u5fc5\u9808\u628a\u6eab\u5ea6\u53c3\u6578\u8003\u616e\u65bc\u7cfb\u7d71\u8a2d\u8a08\u5167\uff0c\u4f7f\u7528\u8f03\u7cbe\u6e96\u7684\u6eab\u5ea6\u50b3\u611f\u5668\u3002<\/li>\n<\/ul>\n\n\n\n
                  \n
                • \u57fa\u65bc\u4e8c\u5143\u6df7\u5408\u6c23\u9ad4\u8a2d\u8a08\u7684\u8d85\u97f3\u6ce2\u6c23\u9ad4\u6fc3\u5ea6\u5075\u6e2c\u50b3\u611f\u5668\uff0c\u7406\u60f3\u72c0\u614b\u4e0b\u5f85\u6e2c\u6c23\u9ad4\u53ea\u80fd\u662f\u5169\u7a2e\u6c23\u9ad4\u7684\u6df7\u5408\u4ecb\u8cea\uff0c\u4e00\u65e6\u6df7\u5165\u5176\u5b83\u6c23\u9ad4\u5f8c\uff0c\u8d85\u97f3\u6ce2\u6c23\u9ad4\u6fc3\u5ea6\u91cf\u6e2c\u6703\u7522\u751f\u6975\u5927\u8aa4\u5dee\u3002<\/li>\n<\/ul>\n\n\n\n
                    \n
                  1. \u53c3\u8003\u8cc7\u6599
                    Reference<\/li>\n<\/ol>\n\n\n\n
                      \n
                    • Shan Minglei, Li Xiang, Zhu Changping, Zhang Jiahua, \u201cGas Concentration Detection Using Ultrasonic Based on Wireless Sensor Networks\u201d<\/li>\n\n\n\n
                    • TEXAS INSTRUMENTS, \u201cApplication Note \u6c27\u6fc3\u5ea6\u611f\u61c9\u201d<\/li>\n\n\n\n
                    • TEXAS INSTRUMENTS, \u201cDesign Guide: TIDM<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

                          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\u5de5\u4f5c\u539f\u7406\uff1a \u8d85\u97f3\u6ce2\u6c23\u9ad4\u6fc3\u5ea6\u5075\u6e2c\u662f\u6e2c\u91cf\u7531\u8d85\u97f3\u6ce2\u767c\u5c04\u5668\uff08TX\uff09\u767c\u51fa\u8d85\u97f3\u6ce2\u4e26\u5728\u6c23\u9ad4\u74b0\u5883\u4e2d\u5230\u9054\u8d85\u97f3\u6ce2\u63a5\u6536\u5668\uff08RX\uff09\u7684\u98db\u884c\u6642\u9593\uff08ToF\uff1bTime of Flight\uff09\u5c31\u53ef\u4ee5\u7b97\u51fa\u6df7\u5408\u6c23\u9ad4\u7684\u8072\u901f\uff0c\u4e26\u85c9\u6b64\u8a08\u7b97\u51fa\u6df7\u5408\u6c23\u9ad4\u7684\u6fc3\u5ea6\uff0c\u57fa\u672c\u67b6\u69cb\u5982\u4e0b\u5716\u793a\u610f\u3002 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