{"id":53482,"date":"2022-09-27T13:09:10","date_gmt":"2022-09-27T18:09:10","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/how-do-ultrasonic-sensors-work\/"},"modified":"2025-01-20T23:18:30","modified_gmt":"2025-01-21T04:18:30","slug":"how-do-ultrasonic-sensors-work","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/zh-hans\/how-do-ultrasonic-sensors-work\/","title":{"rendered":"\u8d85\u58f0\u6ce2\u4f20\u611f\u5668\u5de5\u4f5c\u539f\u7406\u6df1\u5ea6\u89e3\u6790\u53ca\u5e94\u7528\u8be6\u89e3"},"content":{"rendered":"

\u8d85\u58f0\u6ce2\u4f20\u611f\u5668\u7684\u5de5\u4f5c\u539f\u7406\u4f9d\u8d56\u4e8e\u58f0\u6ce2\uff0c\u7279\u522b\u662f\u4eba\u7c7b\u542c\u89c9\u8303\u56f4\u4e4b\u5916\u7684\u8d85\u58f0\u6ce2\u3002\u5b83\u4eec\u901a\u8fc7\u53d1\u5c04\u8d85\u58f0\u6ce2\u8109\u51b2\uff0c\u7136\u540e\u63a5\u6536\u8fd4\u56de\u7684\u56de\u6ce2\u6765\u6d4b\u91cf\u8ddd\u79bb\u3001\u901f\u5ea6\u6216\u5176\u4ed6\u7269\u7406\u5c5e\u6027\u3002\u8fd9\u79cd\u6280\u672f\u5e7f\u6cdb\u5e94\u7528\u4e8e\u6c7d\u8f66\u3001\u5de5\u4e1a\u81ea\u52a8\u5316\u3001\u673a\u5668\u4eba\u6280\u672f\u4ee5\u53ca\u533b\u7597\u8bbe\u5907\u7b49\u9886\u57df\u3002 \u6574\u4e2a\u8fc7\u7a0b\u9ad8\u6548\u4e14\u7cbe\u786e\uff0c\u4f7f\u5f97\u8d85\u58f0\u6ce2\u4f20\u611f\u5668\u6210\u4e3a\u5404\u79cd\u5e94\u7528\u4e2d\u4e0d\u53ef\u6216\u7f3a\u7684\u7ec4\u6210\u90e8\u5206\u3002<\/p>\n

\u8d85\u58f0\u6ce2\u7684\u4ea7\u751f\u4e0e\u53d1\u5c04<\/h3>\n

\u8d85\u58f0\u6ce2\u4f20\u611f\u5668\u5229\u7528\u538b\u7535\u6676\u4f53\u6216\u538b\u7535\u9676\u74f7\u5143\u4ef6\u6765\u4ea7\u751f\u8d85\u58f0\u6ce2\u3002\u5f53\u7535\u4fe1\u53f7\u65bd\u52a0\u5230\u8fd9\u4e9b\u6676\u4f53\u4e0a\u65f6\uff0c\u5b83\u4eec\u4f1a\u53d1\u751f\u5f62\u53d8\uff0c\u4ece\u800c\u4ea7\u751f\u8d85\u58f0\u6ce2\u632f\u52a8\u3002\u8fd9\u79cd\u632f\u52a8\u4ee5\u58f0\u6ce2\u7684\u5f62\u5f0f\u5411\u5916\u4f20\u64ad\u3002\u53d1\u5c04\u7684\u8d85\u58f0\u6ce2\u9891\u7387\u901a\u5e38\u572820kHz\u5230400kHz\u4e4b\u95f4\uff0c\u9891\u7387\u7684\u9009\u62e9\u53d6\u51b3\u4e8e\u5177\u4f53\u7684\u5e94\u7528\u9700\u6c42\u3002\u4f8b\u5982\uff0c\u7528\u4e8e\u6c7d\u8f66\u6cca\u8f66\u8f85\u52a9\u7cfb\u7edf\u7684\u4f20\u611f\u5668\u901a\u5e38\u4f7f\u7528\u8f83\u4f4e\u7684\u9891\u7387\uff0c\u4ee5\u83b7\u5f97\u8f83\u957f\u7684\u63a2\u6d4b\u8ddd\u79bb\uff1b\u800c\u7528\u4e8e\u7cbe\u5bc6\u6d4b\u91cf\u7684\u4f20\u611f\u5668\u5219\u53ef\u80fd\u4f7f\u7528\u8f83\u9ad8\u7684\u9891\u7387\uff0c\u4ee5\u63d0\u9ad8\u7cbe\u5ea6\u3002 \u53d1\u5c04\u529f\u7387\u4e5f\u6839\u636e\u5e94\u7528\u800c\u5f02\uff0c\u529f\u7387\u8fc7\u4f4e\u53ef\u80fd\u5bfc\u81f4\u63a2\u6d4b\u8ddd\u79bb\u4e0d\u8db3\uff0c\u800c\u529f\u7387\u8fc7\u9ad8\u5219\u53ef\u80fd\u5bf9\u73af\u5883\u9020\u6210\u5e72\u6270\u3002<\/p>\n\n\n\n\n\n\n\n
\u9891\u7387\u8303\u56f4 (kHz)<\/th>\n\u5e94\u7528\u793a\u4f8b<\/th>\n\u5178\u578b\u63a2\u6d4b\u8ddd\u79bb (cm)<\/th>\n\u5907\u6ce8<\/th>\n<\/tr>\n<\/thead>\n
20-40<\/td>\n\u6c7d\u8f66\u6cca\u8f66\u8f85\u52a9<\/td>\n150-300<\/td>\n\u8f83\u4f4e\u9891\u7387\uff0c\u63a2\u6d4b\u8ddd\u79bb\u8fdc<\/td>\n<\/tr>\n
40-80<\/td>\n\u7269\u4f53\u68c0\u6d4b<\/td>\n50-150<\/td>\n\u4e2d\u7b49\u9891\u7387\uff0c\u5e73\u8861\u8ddd\u79bb\u548c\u7cbe\u5ea6<\/td>\n<\/tr>\n
100-400<\/td>\n\u7cbe\u5bc6\u6d4b\u91cf<\/td>\n10-50<\/td>\n\u9ad8\u9891\uff0c\u9ad8\u7cbe\u5ea6\uff0c\u4f46\u63a2\u6d4b\u8ddd\u79bb\u77ed<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u56de\u6ce2\u7684\u63a5\u6536\u4e0e\u5904\u7406<\/h3>\n

\u5f53\u53d1\u5c04\u7684\u8d85\u58f0\u6ce2\u9047\u5230\u7269\u4f53\u65f6\uff0c\u4e00\u90e8\u5206\u58f0\u6ce2\u4f1a\u88ab\u53cd\u5c04\u56de\u6765\uff0c\u5f62\u6210\u56de\u6ce2\u3002\u4f20\u611f\u5668\u63a5\u6536\u5230\u7684\u56de\u6ce2\u4fe1\u53f7\u4f1a\u88ab\u8f6c\u6362\u6210\u7535\u4fe1\u53f7\u3002\u4f20\u611f\u5668\u5185\u90e8\u7684\u63a5\u6536\u5668\u901a\u5e38\u4e5f\u662f\u538b\u7535\u6676\u4f53\u6216\u538b\u7535\u9676\u74f7\u5143\u4ef6\uff0c\u5b83\u5c06\u58f0\u6ce2\u632f\u52a8\u8f6c\u5316\u4e3a\u7535\u4fe1\u53f7\u3002\u8fd9\u4e2a\u7535\u4fe1\u53f7\u7684\u5f3a\u5ea6\u548c\u65f6\u95f4\u4fe1\u606f\u90fd\u975e\u5e38\u91cd\u8981\u3002\u4fe1\u53f7\u5f3a\u5ea6\u53cd\u6620\u4e86\u7269\u4f53\u7684\u53cd\u5c04\u7279\u6027\uff0c\u800c\u4fe1\u53f7\u5230\u8fbe\u7684\u65f6\u95f4\u5219\u4e0e\u7269\u4f53\u5230\u4f20\u611f\u5668\u7684\u8ddd\u79bb\u6210\u6b63\u6bd4\u3002<\/p>\n

\u8ddd\u79bb\u7684\u8ba1\u7b97\u4e0e\u8f93\u51fa<\/h3>\n

\u4f20\u611f\u5668\u5185\u90e8\u7684\u7535\u8def\u4f1a\u5904\u7406\u63a5\u6536\u5230\u7684\u56de\u6ce2\u4fe1\u53f7\uff0c\u8ba1\u7b97\u51fa\u76ee\u6807\u7269\u4f53\u7684\u8ddd\u79bb\u3002\u8fd9\u4e2a\u8ba1\u7b97\u8fc7\u7a0b\u901a\u5e38\u57fa\u4e8e\u58f0\u901f\u548c\u56de\u6ce2\u4f20\u64ad\u65f6\u95f4\u3002 \u7b80\u5355\u7684\u8bf4\uff0c\u8ddd\u79bb\u7b49\u4e8e\u58f0\u901f\u4e58\u4ee5\u56de\u6ce2\u4f20\u64ad\u65f6\u95f4\u7684\u4e00\u534a (\u56e0\u4e3a\u58f0\u6ce2\u9700\u8981\u4f20\u64ad\u5230\u7269\u4f53\u7136\u540e\u518d\u53cd\u5c04\u56de\u6765)\u3002 \u516c\u5f0f\u5982\u4e0b\uff1a<\/p>\n

\u8ddd\u79bb = (\u58f0\u901f \u00d7 \u56de\u6ce2\u4f20\u64ad\u65f6\u95f4) \/ 2<\/p>\n

\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u58f0\u901f\u4f1a\u53d7\u5230\u6e29\u5ea6\u3001\u6e7f\u5ea6\u7b49\u73af\u5883\u56e0\u7d20\u7684\u5f71\u54cd\uff0c\u56e0\u6b64\u5728\u9ad8\u7cbe\u5ea6\u5e94\u7528\u4e2d\u9700\u8981\u8fdb\u884c\u76f8\u5e94\u7684\u8865\u507f\u3002 \u6b64\u5916\uff0c\u4fe1\u53f7\u5904\u7406\u7b97\u6cd5\u4e5f\u626e\u6f14\u7740\u5173\u952e\u89d2\u8272\uff0c\u5b83\u53ef\u4ee5\u8fc7\u6ee4\u6389\u566a\u58f0\uff0c\u63d0\u9ad8\u6d4b\u91cf\u7684\u51c6\u786e\u6027\u548c\u7a33\u5b9a\u6027\u3002 \u4e00\u4e9b\u9ad8\u7ea7\u7684\u8d85\u58f0\u6ce2\u4f20\u611f\u5668\u8fd8\u4f1a\u63d0\u4f9b\u591a\u79cd\u8f93\u51fa\u65b9\u5f0f\uff0c\u4f8b\u5982\u6a21\u62df\u7535\u538b\u3001\u6570\u5b57\u4fe1\u53f7\u6216\u4e32\u884c\u901a\u4fe1\u63a5\u53e3\uff0c\u4ee5\u9002\u5e94\u4e0d\u540c\u7684\u5e94\u7528\u573a\u666f\u3002<\/p>\n

\u5f71\u54cd\u6d4b\u91cf\u7684\u56e0\u7d20<\/h3>\n

\u9664\u4e86\u58f0\u901f\u7684\u5f71\u54cd\uff0c\u8fd8\u6709\u5176\u4ed6\u4e00\u4e9b\u56e0\u7d20\u4f1a\u5f71\u54cd\u8d85\u58f0\u6ce2\u4f20\u611f\u5668\u7684\u6d4b\u91cf\u7cbe\u5ea6\u548c\u53ef\u9760\u6027\u3002\u4f8b\u5982\uff0c\u76ee\u6807\u7269\u4f53\u7684\u6750\u8d28\u3001\u8868\u9762\u7c97\u7cd9\u5ea6\u3001\u4ee5\u53ca\u73af\u5883\u4e2d\u7684\u566a\u58f0\u90fd\u4f1a\u5bf9\u56de\u6ce2\u4fe1\u53f7\u4ea7\u751f\u5f71\u54cd\u3002 \u5f3a\u70c8\u7684\u53cd\u5c04\u6216\u5438\u6536\u4f1a\u4f7f\u6d4b\u91cf\u7ed3\u679c\u5931\u771f\uff0c\u800c\u73af\u5883\u566a\u58f0\u5219\u53ef\u80fd\u5bfc\u81f4\u8bef\u62a5\u6216\u6f0f\u62a5\u3002 \u56e0\u6b64\uff0c\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u9700\u8981\u4ed4\u7ec6\u9009\u62e9\u4f20\u611f\u5668\u53c2\u6570\uff0c\u5e76\u8003\u8651\u73af\u5883\u56e0\u7d20\u7684\u5f71\u54cd\uff0c\u4ee5\u786e\u4fdd\u6d4b\u91cf\u7684\u51c6\u786e\u6027\u548c\u53ef\u9760\u6027\u3002<\/p>\n

\u8d85\u58f0\u6ce2\u4f20\u611f\u5668\u4ee5\u5176\u7b80\u5355\u3001\u53ef\u9760\u3001\u6210\u672c\u4f4e\u5ec9\u7684\u4f18\u52bf\uff0c\u5728\u4f17\u591a\u9886\u57df\u53d1\u6325\u7740\u91cd\u8981\u4f5c\u7528\u3002 \u901a\u8fc7\u5bf9\u8d85\u58f0\u6ce2\u53d1\u5c04\u3001\u63a5\u6536\u548c\u4fe1\u53f7\u5904\u7406\u8fc7\u7a0b\u7684\u6df1\u5165\u7406\u89e3\uff0c\u6211\u4eec\u53ef\u4ee5\u66f4\u597d\u5730\u5229\u7528\u8fd9\u9879\u6280\u672f\uff0c\u63a8\u52a8\u5176\u5728\u66f4\u591a\u9886\u57df\u7684\u5e94\u7528\u548c\u53d1\u5c55\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

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