{"id":33045,"date":"2023-04-21T23:51:05","date_gmt":"2023-04-22T04:51:05","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/how-to-make-homemade-ultrasonic-sensor\/"},"modified":"2025-01-20T23:25:16","modified_gmt":"2025-01-21T04:25:16","slug":"how-to-make-homemade-ultrasonic-sensor","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/zh-hans\/how-to-make-homemade-ultrasonic-sensor\/","title":{"rendered":"\u81ea\u5236\u8d85\u58f0\u6ce2\u4f20\u611f\u5668\uff1a\u539f\u7406\u8be6\u89e3\u4e0e\u8be6\u7ec6\u5236\u4f5c\u6b65\u9aa4\u53ca\u5e94\u7528\u6307\u5357"},"content":{"rendered":"<p>\u81ea\u5236\u8d85\u58f0\u6ce2\u4f20\u611f\u5668\u8be6\u89e3<\/p>\n<p>\u8d85\u58f0\u6ce2\u4f20\u611f\u5668\u5728\u751f\u6d3b\u4e2d\u5e94\u7528\u5e7f\u6cdb\uff0c\u4f8b\u5982\u81ea\u52a8\u95e8\u3001\u505c\u8f66\u8f85\u52a9\u7cfb\u7edf\u7b49\u3002\u5e02\u9762\u4e0a\u5df2\u6709\u5404\u79cd\u5404\u6837\u7684\u8d85\u58f0\u6ce2\u4f20\u611f\u5668\u6a21\u5757\uff0c\u4f46\u81ea\u5df1\u52a8\u624b\u5236\u4f5c\u4e00\u4e2a\uff0c\u4e0d\u4ec5\u80fd\u52a0\u6df1\u5bf9\u8d85\u58f0\u6ce2\u4f20\u611f\u539f\u7406\u7684\u7406\u89e3\uff0c\u8fd8\u80fd\u83b7\u5f97\u72ec\u7279\u7684\u6210\u5c31\u611f\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u5236\u4f5c\u4e00\u4e2a\u7b80\u5355\u7684\u8d85\u58f0\u6ce2\u4f20\u611f\u5668\u3002<\/p>\n<h3>1. \u539f\u7406\u6982\u8ff0<\/h3>\n<p>\u8d85\u58f0\u6ce2\u4f20\u611f\u5668\u7684\u5de5\u4f5c\u539f\u7406\u57fa\u4e8e\u8d85\u58f0\u6ce2\u7684\u56de\u6ce2\u6d4b\u8ddd\u3002\u4f20\u611f\u5668\u53d1\u51fa\u8d85\u58f0\u6ce2\u8109\u51b2\uff0c\u9047\u5230\u969c\u788d\u7269\u540e\u53cd\u5c04\u56de\u4f20\u611f\u5668\uff0c\u901a\u8fc7\u6d4b\u91cf\u53d1\u51fa\u8109\u51b2\u548c\u63a5\u6536\u56de\u6ce2\u7684\u65f6\u95f4\u5dee\uff0c\u7ed3\u5408\u58f0\u901f\uff0c\u5c31\u53ef\u4ee5\u8ba1\u7b97\u51fa\u969c\u788d\u7269\u4e0e\u4f20\u611f\u5668\u7684\u8ddd\u79bb\u3002  \u8fd9\u4e2a\u8fc7\u7a0b\u9700\u8981\u4e00\u4e2a\u8d85\u58f0\u6ce2\u53d1\u5c04\u5668\u548c\u4e00\u4e2a\u8d85\u58f0\u6ce2\u63a5\u6536\u5668\u3002\u53d1\u5c04\u5668\u4ea7\u751f\u8d85\u58f0\u6ce2\uff0c\u63a5\u6536\u5668\u63a5\u6536\u53cd\u5c04\u56de\u6765\u7684\u8d85\u58f0\u6ce2\u4fe1\u53f7\u3002  \u7531\u4e8e\u8d85\u58f0\u6ce2\u7684\u9891\u7387\u9ad8\u4e8e\u4eba\u8033\u53ef\u542c\u8303\u56f4\uff0c\u6240\u4ee5\u6211\u4eec\u65e0\u6cd5\u76f4\u63a5\u542c\u5230\u3002<\/p>\n<h3>2. \u6750\u6599\u51c6\u5907<\/h3>\n<p>\u5236\u4f5c\u4e00\u4e2a\u7b80\u5355\u7684\u8d85\u58f0\u6ce2\u4f20\u611f\u5668\u9700\u8981\u4ee5\u4e0b\u6750\u6599\uff1a<\/p>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>\u6750\u6599\u540d\u79f0<\/th>\n<th>\u89c4\u683c<\/th>\n<th>\u6570\u91cf<\/th>\n<th>\u5907\u6ce8<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>40kHz\u8d85\u58f0\u6ce2\u6362\u80fd\u5668<\/td>\n<td>40kHz\uff0c\u76f4\u5f8410mm<\/td>\n<td>2<\/td>\n<td>\u4e00\u4e2a\u4f5c\u4e3a\u53d1\u5c04\u5668\uff0c\u4e00\u4e2a\u4f5c\u4e3a\u63a5\u6536\u5668<\/td>\n<\/tr>\n<tr>\n<td>\u5fae\u63a7\u5236\u5668<\/td>\n<td>Arduino Uno<\/td>\n<td>1<\/td>\n<td>\u6216\u5176\u4ed6\u7c7b\u4f3c\u7684\u5fae\u63a7\u5236\u5668<\/td>\n<\/tr>\n<tr>\n<td>\u7535\u963b<\/td>\n<td>220\u03a9<\/td>\n<td>2<\/td>\n<td>\u7528\u4e8e\u9650\u5236\u6362\u80fd\u5668\u7684\u9a71\u52a8\u7535\u6d41<\/td>\n<\/tr>\n<tr>\n<td>\u7535\u5bb9<\/td>\n<td>100nF<\/td>\n<td>2<\/td>\n<td>\u7528\u4e8e\u6ee4\u9664\u6362\u80fd\u5668\u7684\u566a\u58f0<\/td>\n<\/tr>\n<tr>\n<td>\u9762\u5305\u677f<\/td>\n<td><\/td>\n<td>1<\/td>\n<td>\u7528\u4e8e\u8fde\u63a5\u7535\u8def\u5143\u4ef6<\/td>\n<\/tr>\n<tr>\n<td>\u8df3\u7ebf<\/td>\n<td><\/td>\n<td>\u82e5\u5e72<\/td>\n<td>\u7528\u4e8e\u8fde\u63a5\u7535\u8def\u5143\u4ef6<\/td>\n<\/tr>\n<tr>\n<td>\u7535\u6e90<\/td>\n<td>5V<\/td>\n<td>1<\/td>\n<td>\u7528\u4e8e\u4f9b\u7535<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>3. \u7535\u8def\u8bbe\u8ba1<\/h3>\n<p>\u7535\u8def\u8bbe\u8ba1\u76f8\u5bf9\u7b80\u5355\uff0c\u5c06\u4e24\u4e2a40kHz\u8d85\u58f0\u6ce2\u6362\u80fd\u5668\u5206\u522b\u8fde\u63a5\u5230\u5fae\u63a7\u5236\u5668\u7684\u6570\u5b57\u5f15\u811a\u4e0a\uff0c\u901a\u8fc7\u7535\u963b\u548c\u7535\u5bb9\u8fdb\u884c\u4fdd\u62a4\u3002  \u53d1\u5c04\u5668\u9700\u8981\u4e00\u4e2a\u8109\u51b2\u4fe1\u53f7\u89e6\u53d1\uff0c\u63a5\u6536\u5668\u5219\u9700\u8981\u6d4b\u91cf\u56de\u6ce2\u4fe1\u53f7\u7684\u8109\u5bbd\u3002  \u53ef\u4ee5\u4f7f\u7528Arduino\u7684\u5b9a\u65f6\u5668\u529f\u80fd\u7cbe\u786e\u6d4b\u91cf\u65f6\u95f4\u5dee\u3002<\/p>\n<h3>4. \u8f6f\u4ef6\u7f16\u7a0b<\/h3>\n<p>Arduino\u7684\u7f16\u7a0b\u76f8\u5bf9\u7b80\u5355\uff0c\u53ef\u4ee5\u4f7f\u7528Arduino IDE\u7f16\u5199\u4ee3\u7801\u3002\u4ee3\u7801\u9700\u8981\u5305\u542b\u4ee5\u4e0b\u6b65\u9aa4\uff1a<\/p>\n<ol>\n<li>\u53d1\u9001\u4e00\u4e2a\u8109\u51b2\u4fe1\u53f7\u7ed9\u53d1\u5c04\u5668\u3002<\/li>\n<li>\u7b49\u5f85\u63a5\u6536\u5668\u63a5\u6536\u5230\u56de\u6ce2\u4fe1\u53f7\u3002<\/li>\n<li>\u6d4b\u91cf\u8109\u51b2\u5bbd\u5ea6\uff08\u65f6\u95f4\u5dee\uff09\u3002<\/li>\n<li>\u6839\u636e\u58f0\u901f\u8ba1\u7b97\u8ddd\u79bb\u3002<\/li>\n<li>\u5c06\u8ddd\u79bb\u6570\u636e\u8f93\u51fa\u5230\u4e32\u53e3\u6216\u663e\u793a\u5c4f\u3002<\/li>\n<\/ol>\n<p>\u5177\u4f53\u7684\u4ee3\u7801\u5b9e\u73b0\u9700\u8981\u6839\u636e\u9009\u62e9\u7684\u5fae\u63a7\u5236\u5668\u548c\u4f20\u611f\u5668\u578b\u53f7\u8fdb\u884c\u8c03\u6574\u3002  \u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u7531\u4e8e\u73af\u5883\u566a\u58f0\u7684\u5f71\u54cd\uff0c\u9700\u8981\u8fdb\u884c\u6ee4\u6ce2\u5904\u7406\u4ee5\u63d0\u9ad8\u6d4b\u8ddd\u7cbe\u5ea6\u3002<\/p>\n<h3>5.  \u8ddd\u79bb\u8ba1\u7b97\u548c\u8bef\u5dee\u5206\u6790<\/h3>\n<p>\u8ddd\u79bb\u7684\u8ba1\u7b97\u516c\u5f0f\u4e3a\uff1a\u8ddd\u79bb = (\u58f0\u901f \u00d7 \u65f6\u95f4\u5dee) \/ 2\u3002  \u5176\u4e2d\uff0c\u58f0\u901f\u4f1a\u53d7\u5230\u6e29\u5ea6\u7684\u5f71\u54cd\uff0c\u9700\u8981\u6839\u636e\u5b9e\u9645\u6e29\u5ea6\u8fdb\u884c\u6821\u6b63\u3002  \u6b64\u5916\uff0c\u73af\u5883\u566a\u58f0\u3001\u969c\u788d\u7269\u7684\u6750\u8d28\u7b49\u56e0\u7d20\u4e5f\u4f1a\u5f71\u54cd\u6d4b\u8ddd\u7cbe\u5ea6\u3002  \u4e3a\u4e86\u63d0\u9ad8\u7cbe\u5ea6\uff0c\u53ef\u4ee5\u91c7\u7528\u591a\u6b21\u6d4b\u91cf\u53d6\u5e73\u5747\u503c\u7684\u65b9\u6cd5\u3002<\/p>\n<h3>6.  \u6539\u8fdb\u4e0e\u5347\u7ea7<\/h3>\n<p>\u8fd9\u4e2a\u7b80\u5355\u7684\u8d85\u58f0\u6ce2\u4f20\u611f\u5668\u53ef\u4ee5\u8fdb\u884c\u6539\u8fdb\u548c\u5347\u7ea7\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528\u66f4\u9ad8\u7cbe\u5ea6\u7684\u8ba1\u65f6\u5668\u3002<\/li>\n<li>\u6dfb\u52a0\u6ee4\u6ce2\u7535\u8def\u4ee5\u51cf\u5c11\u566a\u58f0\u5e72\u6270\u3002<\/li>\n<li>\u4f7f\u7528\u66f4\u5f3a\u5927\u7684\u5fae\u63a7\u5236\u5668\u8fdb\u884c\u66f4\u590d\u6742\u7684\u4fe1\u53f7\u5904\u7406\u3002<\/li>\n<li>\u589e\u52a0\u6e29\u5ea6\u4f20\u611f\u5668\u8fdb\u884c\u58f0\u901f\u6821\u6b63\u3002<\/li>\n<\/ul>\n<p>\u603b\u7ed3<\/p>\n<p>\u81ea\u5236\u8d85\u58f0\u6ce2\u4f20\u611f\u5668\u662f\u4e00\u4e2a\u6709\u8da3\u4e14\u6709\u76ca\u7684\u9879\u76ee\uff0c\u5b83\u80fd\u591f\u5e2e\u52a9\u6211\u4eec\u66f4\u597d\u5730\u7406\u89e3\u8d85\u58f0\u6ce2\u4f20\u611f\u5668\u7684\u539f\u7406\u548c\u5e94\u7528\u3002 \u901a\u8fc7\u5b66\u4e60\u548c\u5b9e\u8df5\uff0c\u6211\u4eec\u53ef\u4ee5\u4e0d\u65ad\u6539\u8fdb\u548c\u5b8c\u5584\u6211\u4eec\u7684\u8bbe\u8ba1\uff0c\u521b\u9020\u51fa\u66f4\u7cbe\u51c6\u3001\u66f4\u5b9e\u7528\u7684\u8d85\u58f0\u6ce2\u4f20\u611f\u5668\u3002  \u5e0c\u671b\u672c\u6587\u80fd\u591f\u4e3a\u5404\u4f4dDIY\u7231\u597d\u8005\u63d0\u4f9b\u4e00\u4e9b\u53c2\u8003\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u81ea\u5236\u8d85\u58f0\u6ce2\u4f20\u611f\u5668\u8be6\u89e3 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