{"id":29095,"date":"2023-04-22T03:01:16","date_gmt":"2023-04-22T08:01:16","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/how-to-make-an-ultrasonic-sensor\/"},"modified":"2025-01-20T23:23:34","modified_gmt":"2025-01-21T04:23:34","slug":"how-to-make-an-ultrasonic-sensor","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/zh-hans\/how-to-make-an-ultrasonic-sensor\/","title":{"rendered":"\u8d85\u58f0\u6ce2\u4f20\u611f\u5668\u5236\u4f5c\u8be6\u89e3\uff1a\u539f\u7406\u3001\u7535\u8def\u53ca\u4ee3\u7801\u5b9e\u73b0\u6307\u5357"},"content":{"rendered":"<p>\u8d85\u58f0\u6ce2\u4f20\u611f\u5668\u662f\u4e00\u79cd\u5229\u7528\u8d85\u58f0\u6ce2\u6765\u6d4b\u91cf\u8ddd\u79bb\u3001\u901f\u5ea6\u6216\u5176\u4ed6\u7269\u7406\u91cf\u7684\u88c5\u7f6e\u3002\u5176\u5de5\u4f5c\u539f\u7406\u662f\u53d1\u5c04\u8d85\u58f0\u6ce2\u8109\u51b2\uff0c\u7136\u540e\u63a5\u6536\u4ece\u76ee\u6807\u7269\u4f53\u53cd\u5c04\u56de\u6765\u7684\u56de\u6ce2\u3002\u901a\u8fc7\u6d4b\u91cf\u53d1\u5c04\u548c\u63a5\u6536\u4e4b\u95f4\u7684\u65f6\u95f4\u5dee\uff0c\u4ee5\u53ca\u5df2\u77e5\u7684\u58f0\u901f\uff0c\u53ef\u4ee5\u8ba1\u7b97\u51fa\u76ee\u6807\u7269\u4f53\u7684\u8ddd\u79bb\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>\u8d85\u58f0\u6ce2\u4f20\u611f\u5668\u7684\u57fa\u672c\u7ec4\u4ef6<\/h3>\n<p>\u4e00\u4e2a\u7b80\u5355\u7684\u8d85\u58f0\u6ce2\u4f20\u611f\u5668\u4e3b\u8981\u7531\u4ee5\u4e0b\u51e0\u4e2a\u7ec4\u4ef6\u6784\u6210\uff1a<\/p>\n<ul>\n<li>\n<p><strong>\u8d85\u58f0\u6ce2\u6362\u80fd\u5668 (Transducer):<\/strong>  \u8fd9\u662f\u6838\u5fc3\u90e8\u4ef6\uff0c\u8d1f\u8d23\u53d1\u5c04\u548c\u63a5\u6536\u8d85\u58f0\u6ce2\u3002\u5b83\u901a\u5e38\u662f\u4e00\u4e2a\u538b\u7535\u6676\u4f53\uff0c\u53ef\u4ee5\u901a\u8fc7\u65bd\u52a0\u7535\u538b\u4ea7\u751f\u8d85\u58f0\u6ce2\uff0c\u4e5f\u53ef\u4ee5\u901a\u8fc7\u63a5\u6536\u53cd\u5c04\u7684\u8d85\u58f0\u6ce2\u4ea7\u751f\u7535\u538b\u53d8\u5316\u3002\u9009\u62e9\u5408\u9002\u7684\u6362\u80fd\u5668\u9891\u7387\u975e\u5e38\u91cd\u8981\uff0c\u8fd9\u5c06\u5f71\u54cd\u4f20\u611f\u5668\u7684\u6d4b\u91cf\u8303\u56f4\u548c\u7cbe\u5ea6\u3002  \u5e38\u89c1\u7684\u9891\u7387\u8303\u56f4\u4ece40kHz\u5230400kHz\u4e0d\u7b49\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u5b9a\u65f6\u5668 (Timer):<\/strong> \u7528\u4e8e\u7cbe\u786e\u6d4b\u91cf\u8d85\u58f0\u6ce2\u53d1\u5c04\u548c\u63a5\u6536\u4e4b\u95f4\u7684\u65f6\u95f4\u5dee\u3002\u9ad8\u7cbe\u5ea6\u5b9a\u65f6\u5668\u662f\u5173\u952e\uff0c\u56e0\u4e3a\u5fae\u5c0f\u7684\u8bef\u5dee\u90fd\u4f1a\u5bfc\u81f4\u8ddd\u79bb\u6d4b\u91cf\u4e0a\u7684\u8f83\u5927\u504f\u5dee\u3002  \u8bb8\u591a\u5fae\u63a7\u5236\u5668\u5185\u7f6e\u9ad8\u7cbe\u5ea6\u5b9a\u65f6\u5668\uff0c\u975e\u5e38\u9002\u5408\u6b64\u5e94\u7528\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u5fae\u63a7\u5236\u5668 (Microcontroller):<\/strong>  \u8d1f\u8d23\u63a7\u5236\u6574\u4e2a\u7cfb\u7edf\u7684\u8fd0\u884c\uff0c\u5305\u62ec\u53d1\u9001\u89e6\u53d1\u4fe1\u53f7\u7ed9\u6362\u80fd\u5668\u3001\u8bfb\u53d6\u5b9a\u65f6\u5668\u6570\u636e\u3001\u4ee5\u53ca\u8fdb\u884c\u8ddd\u79bb\u8ba1\u7b97\u548c\u6570\u636e\u5904\u7406\u3002  \u4f8b\u5982\uff0cArduino Uno\u7b49\u5fae\u63a7\u5236\u5668\u5c31\u975e\u5e38\u9002\u5408\u8fd9\u4e2a\u9879\u76ee\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u7535\u6e90 (Power Supply):<\/strong> \u4e3a\u6574\u4e2a\u7cfb\u7edf\u63d0\u4f9b\u7a33\u5b9a\u7684\u7535\u6e90\u3002<\/p>\n<\/li>\n<\/ul>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>\u7ec4\u4ef6<\/th>\n<th>\u529f\u80fd<\/th>\n<th>\u89c4\u683c\u793a\u4f8b<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u8d85\u58f0\u6ce2\u6362\u80fd\u5668<\/td>\n<td>\u53d1\u5c04\u548c\u63a5\u6536\u8d85\u58f0\u6ce2<\/td>\n<td>40kHz, 20mm\u76f4\u5f84<\/td>\n<\/tr>\n<tr>\n<td>\u5b9a\u65f6\u5668<\/td>\n<td>\u7cbe\u786e\u6d4b\u91cf\u8d85\u58f0\u6ce2\u98de\u884c\u65f6\u95f4<\/td>\n<td>1\u00b5s\u7cbe\u5ea6<\/td>\n<\/tr>\n<tr>\n<td>\u5fae\u63a7\u5236\u5668<\/td>\n<td>\u63a7\u5236\u7cfb\u7edf\u8fd0\u884c\uff0c\u8fdb\u884c\u6570\u636e\u5904\u7406<\/td>\n<td>Arduino Uno, STM32 \u7b49<\/td>\n<\/tr>\n<tr>\n<td>\u7535\u6e90<\/td>\n<td>\u4e3a\u7cfb\u7edf\u63d0\u4f9b\u7a33\u5b9a\u7535\u6e90<\/td>\n<td>5V DC<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u7535\u8def\u8bbe\u8ba1\u4e0e\u8fde\u63a5<\/h3>\n<p>\u5c06\u4e0a\u8ff0\u7ec4\u4ef6\u8fde\u63a5\u8d77\u6765\u9700\u8981\u4e00\u4e2a\u7b80\u5355\u7684\u7535\u8def\u3002  \u5fae\u63a7\u5236\u5668\u901a\u8fc7\u4e00\u4e2a\u5f15\u811a\u5411\u6362\u80fd\u5668\u53d1\u9001\u89e6\u53d1\u4fe1\u53f7\uff0c\u542f\u52a8\u8d85\u58f0\u6ce2\u53d1\u5c04\u3002  \u53e6\u4e00\u4e2a\u5f15\u811a\u8fde\u63a5\u5230\u6362\u80fd\u5668\u7684\u63a5\u6536\u7aef\uff0c\u7528\u4e8e\u8bfb\u53d6\u53cd\u5c04\u56de\u6ce2\u7684\u4fe1\u53f7\u3002  \u5b9a\u65f6\u5668\u5219\u7528\u4e8e\u7cbe\u786e\u6d4b\u91cf\u4ece\u53d1\u5c04\u5230\u63a5\u6536\u4e4b\u95f4\u7684\u65f6\u95f4\u95f4\u9694\u3002  \u4e00\u4e2a\u7b80\u5355\u7684\u7535\u8def\u56fe\u53ef\u4ee5\u53c2\u8003Arduino\u7684\u5b98\u65b9\u793a\u4f8b\uff0c\u6216\u8005\u8bb8\u591a\u5728\u7ebf\u8d44\u6e90\u3002  \u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u9700\u8981\u6839\u636e\u6240\u9009\u7528\u7684\u6362\u80fd\u5668\u548c\u5fae\u63a7\u5236\u5668\u7684\u89c4\u683c\u8fdb\u884c\u76f8\u5e94\u7684\u7535\u8def\u8bbe\u8ba1\u3002<\/p>\n<h3>\u8f6f\u4ef6\u7f16\u7a0b\u4e0e\u7b97\u6cd5<\/h3>\n<p>\u5fae\u63a7\u5236\u5668\u9700\u8981\u8fd0\u884c\u76f8\u5e94\u7684\u7a0b\u5e8f\u6765\u63a7\u5236\u6574\u4e2a\u7cfb\u7edf\u3002  \u7a0b\u5e8f\u7684\u4e3b\u8981\u6d41\u7a0b\u5982\u4e0b\uff1a<\/p>\n<ol>\n<li>\u53d1\u9001\u89e6\u53d1\u4fe1\u53f7\u7ed9\u8d85\u58f0\u6ce2\u6362\u80fd\u5668\uff0c\u542f\u52a8\u8d85\u58f0\u6ce2\u53d1\u5c04\u3002<\/li>\n<li>\u5f00\u59cb\u8ba1\u65f6\u3002<\/li>\n<li>\u7b49\u5f85\u63a5\u6536\u56de\u6ce2\u4fe1\u53f7\u3002<\/li>\n<li>\u505c\u6b62\u8ba1\u65f6\u3002<\/li>\n<li>\u6839\u636e\u6d4b\u5f97\u7684\u65f6\u95f4\u5dee\u548c\u58f0\u901f\u8ba1\u7b97\u76ee\u6807\u7269\u4f53\u7684\u8ddd\u79bb\u3002  \u8ddd\u79bb\u8ba1\u7b97\u516c\u5f0f\uff1a\u8ddd\u79bb = (\u58f0\u901f \u00d7 \u65f6\u95f4\u5dee) \/ 2  \uff08\u9664\u4ee52\u662f\u56e0\u4e3a\u8d85\u58f0\u6ce2\u9700\u8981\u5f80\u8fd4\uff09<\/li>\n<li>\u5c06\u8ba1\u7b97\u7ed3\u679c\u663e\u793a\u5728\u663e\u793a\u5668\u4e0a\u6216\u8005\u901a\u8fc7\u4e32\u53e3\u8f93\u51fa\u3002<\/li>\n<\/ol>\n<p>\u4e0d\u540c\u5fae\u63a7\u5236\u5668\u7684\u7f16\u7a0b\u8bed\u8a00\u548c\u5e93\u51fd\u6570\u6709\u6240\u4e0d\u540c\uff0c\u4f46\u57fa\u672c\u7b97\u6cd5\u662f\u76f8\u540c\u7684\u3002  \u4f8b\u5982\uff0cArduino\u53ef\u4ee5\u4f7f\u7528C++\u7f16\u7a0b\uff0c\u5e76\u5229\u7528\u5176\u5185\u7f6e\u7684\u5e93\u51fd\u6570\u6765\u7b80\u5316\u5b9a\u65f6\u5668\u548c\u4e32\u53e3\u64cd\u4f5c\u3002<\/p>\n<h3>\u8ddd\u79bb\u6d4b\u91cf\u8bef\u5dee\u4e0e\u6821\u51c6<\/h3>\n<p>\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u8ddd\u79bb\u6d4b\u91cf\u4f1a\u5b58\u5728\u4e00\u5b9a\u7684\u8bef\u5dee\u3002\u8fd9\u4e9b\u8bef\u5dee\u53ef\u80fd\u6e90\u4e8e\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/p>\n<ul>\n<li><strong>\u58f0\u901f\u53d8\u5316:<\/strong>  \u6e29\u5ea6\u3001\u6e7f\u5ea6\u7b49\u73af\u5883\u56e0\u7d20\u4f1a\u5f71\u54cd\u58f0\u901f\uff0c\u4ece\u800c\u5bfc\u81f4\u6d4b\u91cf\u8bef\u5dee\u3002<\/li>\n<li><strong>\u591a\u8def\u5f84\u53cd\u5c04:<\/strong>  \u8d85\u58f0\u6ce2\u53ef\u80fd\u4f1a\u4ece\u591a\u4e2a\u7269\u4f53\u8868\u9762\u53cd\u5c04\u56de\u6765\uff0c\u5bfc\u81f4\u6d4b\u91cf\u7ed3\u679c\u4e0d\u51c6\u786e\u3002<\/li>\n<li><strong>\u6362\u80fd\u5668\u7279\u6027:<\/strong>  \u6362\u80fd\u5668\u7684\u6307\u5411\u6027\u3001\u7075\u654f\u5ea6\u7b49\u7279\u6027\u4e5f\u4f1a\u5f71\u54cd\u6d4b\u91cf\u7cbe\u5ea6\u3002<\/li>\n<\/ul>\n<p>\u4e3a\u4e86\u63d0\u9ad8\u6d4b\u91cf\u7cbe\u5ea6\uff0c\u53ef\u4ee5\u8fdb\u884c\u4e00\u4e9b\u6821\u51c6\u5de5\u4f5c\uff0c\u4f8b\u5982\uff0c\u5728\u5df2\u77e5\u8ddd\u79bb\u4e0b\u6d4b\u91cf\u591a\u6b21\uff0c\u7136\u540e\u6839\u636e\u6d4b\u91cf\u7ed3\u679c\u8fdb\u884c\u8bef\u5dee\u8865\u507f\u3002  \u4e5f\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e9b\u7b97\u6cd5\u6765\u6ee4\u9664\u566a\u58f0\uff0c\u63d0\u9ad8\u6d4b\u91cf\u7ed3\u679c\u7684\u7a33\u5b9a\u6027\u3002<\/p>\n<h3>\u5b9e\u9645\u5e94\u7528\u4e0e\u62d3\u5c55<\/h3>\n<p>\u5236\u4f5c\u5b8c\u6210\u7684\u8d85\u58f0\u6ce2\u4f20\u611f\u5668\u53ef\u4ee5\u5e94\u7528\u4e8e\u8bb8\u591a\u9886\u57df\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li><strong>\u81ea\u52a8\u6cca\u8f66\u7cfb\u7edf:<\/strong>  \u6d4b\u91cf\u8f66\u8f86\u4e0e\u969c\u788d\u7269\u4e4b\u95f4\u7684\u8ddd\u79bb\u3002<\/li>\n<li><strong>\u673a\u5668\u4eba\u5bfc\u822a:<\/strong>  \u5e2e\u52a9\u673a\u5668\u4eba\u611f\u77e5\u5468\u56f4\u73af\u5883\u3002<\/li>\n<li><strong>\u6db2\u4f4d\u6d4b\u91cf:<\/strong>  \u6d4b\u91cf\u5bb9\u5668\u5185\u7684\u6db2\u4f4d\u9ad8\u5ea6\u3002<\/li>\n<li><strong>\u8ddd\u79bb\u6d4b\u91cf\u4eea:<\/strong>  \u6d4b\u91cf\u7269\u4f53\u4e4b\u95f4\u7684\u8ddd\u79bb\u3002<\/li>\n<\/ul>\n<p>\u901a\u8fc7\u6dfb\u52a0\u4e00\u4e9b\u989d\u5916\u7684\u529f\u80fd\uff0c\u4f8b\u5982\u663e\u793a\u5c4f\u3001\u6570\u636e\u5b58\u50a8\u6a21\u5757\u7b49\uff0c\u53ef\u4ee5\u8fdb\u4e00\u6b65\u62d3\u5c55\u8d85\u58f0\u6ce2\u4f20\u611f\u5668\u7684\u529f\u80fd\u3002<\/p>\n<p>\u8d85\u58f0\u6ce2\u4f20\u611f\u5668\u5236\u4f5c\u76f8\u5bf9\u7b80\u5355\uff0c\u4f46\u9700\u8981\u5bf9\u7535\u5b50\u7535\u8def\u548c\u7f16\u7a0b\u6709\u4e00\u5b9a\u7684\u4e86\u89e3\u3002 \u901a\u8fc7\u4ed4\u7ec6\u9009\u62e9\u7ec4\u4ef6\uff0c\u8bbe\u8ba1\u5408\u7406\u7684\u7535\u8def\uff0c\u7f16\u5199\u6b63\u786e\u7684\u7a0b\u5e8f\uff0c\u5e76\u8fdb\u884c\u5fc5\u8981\u7684\u6821\u51c6\uff0c\u53ef\u4ee5\u5236\u4f5c\u51fa\u4e00\u4e2a\u6027\u80fd\u826f\u597d\u7684\u8d85\u58f0\u6ce2\u4f20\u611f\u5668\uff0c\u5e76\u5728\u5404\u79cd\u5e94\u7528\u4e2d\u53d1\u6325\u4f5c\u7528\u3002  \u638c\u63e1\u5176\u4e2d\u7684\u539f\u7406\u548c\u6280\u5de7\u5bf9\u4e8e\u4ece\u4e8b\u76f8\u5173\u9886\u57df\u7684\u5de5\u4f5c\u8005\u81f3\u5173\u91cd\u8981\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8d85\u58f0\u6ce2\u4f20\u611f\u5668\u662f\u4e00\u79cd\u5229\u7528\u8d85\u58f0\u6ce2\u6765\u6d4b\u91cf\u8ddd\u79bb\u3001\u901f\u5ea6\u6216\u5176\u4ed6\u7269\u7406\u91cf\u7684\u88c5\u7f6e\u3002\u5176\u5de5\u4f5c\u539f\u7406\u662f\u53d1\u5c04\u8d85\u58f0\u6ce2\u8109\u51b2\uff0c\u7136\u540e\u63a5\u6536\u4ece\u76ee\u6807\u7269\u4f53<\/p>\n","protected":false},"author":1,"featured_media":26465,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6413],"tags":[],"class_list":["post-29095","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","prodpage-classic"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.bjultrasonic.com\/zh-hans\/wp-json\/wp\/v2\/posts\/29095","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bjultrasonic.com\/zh-hans\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bjultrasonic.com\/zh-hans\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/zh-hans\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/zh-hans\/wp-json\/wp\/v2\/comments?post=29095"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/zh-hans\/wp-json\/wp\/v2\/posts\/29095\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/zh-hans\/wp-json\/wp\/v2\/media\/26465"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/zh-hans\/wp-json\/wp\/v2\/media?parent=29095"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/zh-hans\/wp-json\/wp\/v2\/categories?post=29095"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/zh-hans\/wp-json\/wp\/v2\/tags?post=29095"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}