{"id":32653,"date":"2023-04-22T00:09:19","date_gmt":"2023-04-22T05:09:19","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/how-to-make-ultrasonic-sensor\/"},"modified":"2025-01-20T23:25:52","modified_gmt":"2025-01-21T04:25:52","slug":"how-to-make-ultrasonic-sensor","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/zh-hans\/how-to-make-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\uff0c\u51ed\u501f\u5176\u975e\u63a5\u89e6\u5f0f\u6d4b\u91cf\u3001\u9ad8\u7cbe\u5ea6\u548c\u53ef\u9760\u6027\u7b49\u4f18\u52bf\uff0c\u5e7f\u6cdb\u5e94\u7528\u4e8e\u6c7d\u8f66\u3001\u5de5\u4e1a\u81ea\u52a8\u5316\u3001\u673a\u5668\u4eba\u3001\u533b\u7597\u7b49\u9886\u57df\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8\u5982\u4f55\u5236\u4f5c\u4e00\u4e2a\u7b80\u5355\u7684\u8d85\u58f0\u6ce2\u4f20\u611f\u5668\uff0c\u6db5\u76d6\u5176\u6838\u5fc3\u7ec4\u4ef6\u3001\u5de5\u4f5c\u539f\u7406\u4ee5\u53ca\u7535\u8def\u8bbe\u8ba1\u7b49\u65b9\u9762\u3002<\/p>\n<h3>\u6838\u5fc3\u7ec4\u4ef6\u53ca\u9009\u578b<\/h3>\n<p>\u5236\u4f5c\u8d85\u58f0\u6ce2\u4f20\u611f\u5668\u9700\u8981\u4ee5\u4e0b\u6838\u5fc3\u7ec4\u4ef6\uff1a<\/p>\n<ul>\n<li><strong>\u8d85\u58f0\u6ce2\u6362\u80fd\u5668 (Transducer):<\/strong>  \u8fd9\u662f\u4f20\u611f\u5668\u7684\u5fc3\u810f\uff0c\u8d1f\u8d23\u53d1\u5c04\u548c\u63a5\u6536\u8d85\u58f0\u6ce2\u4fe1\u53f7\u3002\u9009\u62e9\u6362\u80fd\u5668\u65f6\uff0c\u9700\u8981\u8003\u8651\u5176\u9891\u7387\u3001\u7075\u654f\u5ea6\u3001\u5de5\u4f5c\u7535\u538b\u548c\u65b9\u5411\u6027\u7b49\u53c2\u6570\u3002\u9891\u7387\u7684\u9009\u62e9\u53d6\u51b3\u4e8e\u6d4b\u91cf\u8ddd\u79bb\u548c\u7cbe\u5ea6\u8981\u6c42\uff0c\u66f4\u9ad8\u7684\u9891\u7387\u610f\u5473\u7740\u66f4\u9ad8\u7684\u7cbe\u5ea6\u4f46\u66f4\u77ed\u7684\u6d4b\u91cf\u8ddd\u79bb\u3002\u4f8b\u5982\uff0c40kHz \u7684\u6362\u80fd\u5668\u5e38\u7528\u4e8e\u8fd1\u8ddd\u79bb\u6d4b\u91cf\uff0c\u800c 400kHz \u7684\u6362\u80fd\u5668\u5219\u9002\u5408\u66f4\u7cbe\u7ec6\u7684\u6d4b\u91cf\u3002  \u5317\u4eac\u8d85\u58f0\u6ce2\u516c\u53f8\u751f\u4ea7\u7684\u591a\u79cd\u6362\u80fd\u5668\u53ef\u4f9b\u9009\u62e9\uff0c\u5176\u4ea7\u54c1\u53c2\u6570\u8868\u901a\u5e38\u5305\u542b\u4ee5\u4e0a\u5173\u952e\u4fe1\u606f\u3002<\/li>\n<\/ul>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>\u53c2\u6570<\/th>\n<th>\u5355\u4f4d<\/th>\n<th>40kHz \u6362\u80fd\u5668\u793a\u4f8b<\/th>\n<th>400kHz \u6362\u80fd\u5668\u793a\u4f8b<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u9891\u7387<\/td>\n<td>kHz<\/td>\n<td>40<\/td>\n<td>400<\/td>\n<\/tr>\n<tr>\n<td>\u7075\u654f\u5ea6<\/td>\n<td>mV\/Pa<\/td>\n<td>10<\/td>\n<td>20<\/td>\n<\/tr>\n<tr>\n<td>\u5de5\u4f5c\u7535\u538b<\/td>\n<td>V<\/td>\n<td>5<\/td>\n<td>12<\/td>\n<\/tr>\n<tr>\n<td>\u675f\u5bbd<\/td>\n<td>\u5ea6<\/td>\n<td>20<\/td>\n<td>5<\/td>\n<\/tr>\n<tr>\n<td>\u6700\u5927\u6d4b\u91cf\u8ddd\u79bb<\/td>\n<td>\u7c73<\/td>\n<td>4<\/td>\n<td>0.5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<ul>\n<li>\n<p><strong>\u63a7\u5236\u7535\u8def:<\/strong>  \u8fd9\u90e8\u5206\u7535\u8def\u8d1f\u8d23\u63a7\u5236\u6362\u80fd\u5668\u7684\u53d1\u5c04\u548c\u63a5\u6536\uff0c\u4ee5\u53ca\u5bf9\u63a5\u6536\u5230\u7684\u4fe1\u53f7\u8fdb\u884c\u5904\u7406\u3002\u5b83\u901a\u5e38\u5305\u62ec\u4e00\u4e2a\u5fae\u63a7\u5236\u5668 (MCU)\u3001\u653e\u5927\u5668\u548c\u5b9a\u65f6\u5668\u7b49\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u7535\u6e90:<\/strong>  \u4e3a\u6574\u4e2a\u7cfb\u7edf\u63d0\u4f9b\u7a33\u5b9a\u7684\u7535\u6e90\u7535\u538b\u3002<\/p>\n<\/li>\n<\/ul>\n<h3>\u5de5\u4f5c\u539f\u7406<\/h3>\n<p>\u8d85\u58f0\u6ce2\u4f20\u611f\u5668\u7684\u5de5\u4f5c\u539f\u7406\u57fa\u4e8e\u8d85\u58f0\u6ce2\u7684\u56de\u6ce2\u6d4b\u8ddd\u6cd5\u3002\u4f20\u611f\u5668\u9996\u5148\u53d1\u51fa\u4e00\u4e2a\u77ed\u6682\u7684\u8d85\u58f0\u6ce2\u8109\u51b2\uff0c\u8be5\u8109\u51b2\u9047\u5230\u969c\u788d\u7269\u540e\u4f1a\u53cd\u5c04\u56de\u6765\u3002\u4f20\u611f\u5668\u63a5\u6536\u56de\u6ce2\u4fe1\u53f7\uff0c\u5e76\u6839\u636e\u53d1\u5c04\u548c\u63a5\u6536\u4e4b\u95f4\u7684\u65f6\u95f4\u5dee\u8ba1\u7b97\u51fa\u969c\u788d\u7269\u4e0e\u4f20\u611f\u5668\u7684\u8ddd\u79bb\u3002  \u8ddd\u79bb\u7684\u8ba1\u7b97\u516c\u5f0f\u4e3a\uff1a\u8ddd\u79bb = (\u901f\u5ea6 \u00d7 \u65f6\u95f4) \/ 2\uff0c\u5176\u4e2d\u901f\u5ea6\u4e3a\u8d85\u58f0\u6ce2\u5728\u7a7a\u6c14\u4e2d\u7684\u901f\u5ea6 (\u7ea6 340 m\/s)\u3002<\/p>\n<h3>\u7535\u8def\u8bbe\u8ba1<\/h3>\n<p>\u4e00\u4e2a\u7b80\u5355\u7684\u8d85\u58f0\u6ce2\u4f20\u611f\u5668\u7535\u8def\u901a\u5e38\u5305\u542b\u4ee5\u4e0b\u90e8\u5206\uff1a<\/p>\n<ol>\n<li><strong>\u8d85\u58f0\u6ce2\u6362\u80fd\u5668:<\/strong> \u8fde\u63a5\u5230\u63a7\u5236\u7535\u8def\u7684\u8f93\u51fa\u548c\u8f93\u5165\u5f15\u811a\u3002<\/li>\n<li><strong>\u5fae\u63a7\u5236\u5668 (MCU):<\/strong>  \u4f8b\u5982 Arduino \u6216 STM32\uff0c\u8d1f\u8d23\u63a7\u5236\u53d1\u5c04\u548c\u63a5\u6536\u8fc7\u7a0b\uff0c\u4ee5\u53ca\u8ddd\u79bb\u8ba1\u7b97\u3002  MCU \u9700\u8981\u5177\u5907\u5b9a\u65f6\u5668\u529f\u80fd\uff0c\u7cbe\u786e\u6d4b\u91cf\u53d1\u5c04\u548c\u63a5\u6536\u4e4b\u95f4\u7684\u65f6\u95f4\u5dee\u3002<\/li>\n<li><strong>\u653e\u5927\u5668:<\/strong> \u7528\u4e8e\u653e\u5927\u63a5\u6536\u5230\u7684\u5f31\u56de\u6ce2\u4fe1\u53f7\uff0c\u63d0\u9ad8\u4fe1\u566a\u6bd4\u3002<\/li>\n<li><strong>\u7535\u6e90:<\/strong> \u4e3a\u6574\u4e2a\u7535\u8def\u63d0\u4f9b\u7a33\u5b9a\u7684\u7535\u6e90\u3002<\/li>\n<\/ol>\n<h3>\u4fe1\u53f7\u5904\u7406\u4e0e\u8ddd\u79bb\u8ba1\u7b97<\/h3>\n<p>\u63a5\u6536\u5230\u7684\u56de\u6ce2\u4fe1\u53f7\u901a\u5e38\u6bd4\u8f83\u5fae\u5f31\u4e14\u542b\u6709\u566a\u58f0\u3002\u56e0\u6b64\uff0c\u9700\u8981\u8fdb\u884c\u4fe1\u53f7\u5904\u7406\u4ee5\u63d0\u53d6\u6709\u6548\u7684\u56de\u6ce2\u4fe1\u606f\u3002\u5e38\u7528\u7684\u4fe1\u53f7\u5904\u7406\u65b9\u6cd5\u5305\u62ec\u6ee4\u6ce2\u3001\u9608\u503c\u68c0\u6d4b\u7b49\u3002  \u4e00\u65e6\u68c0\u6d4b\u5230\u6709\u6548\u7684\u56de\u6ce2\u4fe1\u53f7\uff0cMCU \u5c31\u53ef\u4ee5\u6839\u636e\u53d1\u5c04\u548c\u63a5\u6536\u4e4b\u95f4\u7684\u65f6\u95f4\u5dee\u8ba1\u7b97\u51fa\u8ddd\u79bb\u3002<\/p>\n<h3>\u8f6f\u4ef6\u7f16\u7a0b<\/h3>\n<p>\u6839\u636e\u9009\u62e9\u7684MCU\uff0c\u9700\u8981\u7f16\u5199\u76f8\u5e94\u7684\u7a0b\u5e8f\u6765\u63a7\u5236\u4f20\u611f\u5668\u5e76\u5904\u7406\u6570\u636e\u3002\u7a0b\u5e8f\u4e3b\u8981\u5305\u62ec\uff1a<\/p>\n<ol>\n<li><strong>\u53d1\u9001\u8d85\u58f0\u6ce2\u8109\u51b2:<\/strong> \u63a7\u5236\u6362\u80fd\u5668\u53d1\u5c04\u8d85\u58f0\u6ce2\u8109\u51b2\u3002<\/li>\n<li><strong>\u63a5\u6536\u56de\u6ce2\u4fe1\u53f7:<\/strong>  \u8bfb\u53d6\u6362\u80fd\u5668\u7684\u63a5\u6536\u4fe1\u53f7\u3002<\/li>\n<li><strong>\u4fe1\u53f7\u5904\u7406:<\/strong>  \u5bf9\u63a5\u6536\u5230\u7684\u4fe1\u53f7\u8fdb\u884c\u6ee4\u6ce2\u548c\u9608\u503c\u68c0\u6d4b\u3002<\/li>\n<li><strong>\u8ddd\u79bb\u8ba1\u7b97:<\/strong>  \u6839\u636e\u65f6\u95f4\u5dee\u8ba1\u7b97\u8ddd\u79bb\u3002<\/li>\n<li><strong>\u6570\u636e\u8f93\u51fa:<\/strong>  \u5c06\u8ba1\u7b97\u51fa\u7684\u8ddd\u79bb\u8f93\u51fa\u5230\u663e\u793a\u5668\u6216\u5176\u4ed6\u8bbe\u5907\u3002<\/li>\n<\/ol>\n<h3>\u6ce8\u610f\u4e8b\u9879<\/h3>\n<ul>\n<li><strong>\u73af\u5883\u5e72\u6270:<\/strong>  \u6e29\u5ea6\u3001\u6e7f\u5ea6\u548c\u98ce\u901f\u7b49\u73af\u5883\u56e0\u7d20\u90fd\u4f1a\u5f71\u54cd\u8d85\u58f0\u6ce2\u7684\u4f20\u64ad\u901f\u5ea6\uff0c\u4ece\u800c\u5f71\u54cd\u6d4b\u91cf\u7cbe\u5ea6\u3002<\/li>\n<li><strong>\u7269\u4f53\u6750\u8d28:<\/strong>  \u4e0d\u540c\u6750\u8d28\u7684\u7269\u4f53\u5bf9\u8d85\u58f0\u6ce2\u7684\u53cd\u5c04\u7387\u4e0d\u540c\uff0c\u4e5f\u4f1a\u5f71\u54cd\u6d4b\u91cf\u7ed3\u679c\u3002<\/li>\n<li><strong>\u76f2\u533a:<\/strong>  \u4f20\u611f\u5668\u9644\u8fd1\u5b58\u5728\u4e00\u4e2a\u76f2\u533a\uff0c\u5728\u8fd9\u4e2a\u533a\u57df\u5185\u65e0\u6cd5\u8fdb\u884c\u6709\u6548\u7684\u6d4b\u91cf\u3002<\/li>\n<\/ul>\n<p>\u8d85\u58f0\u6ce2\u4f20\u611f\u5668\u7684\u5236\u4f5c\u9700\u8981\u4e00\u5b9a\u7684\u7535\u5b50\u6280\u672f\u57fa\u7840\u548c\u7f16\u7a0b\u80fd\u529b\u3002  \u901a\u8fc7\u5408\u7406\u9009\u62e9\u7ec4\u4ef6\u3001\u8bbe\u8ba1\u7535\u8def\u548c\u7f16\u5199\u7a0b\u5e8f\uff0c\u53ef\u4ee5\u5236\u4f5c\u51fa\u6027\u80fd\u826f\u597d\u7684\u8d85\u58f0\u6ce2\u4f20\u611f\u5668\uff0c\u5e76\u5c06\u5176\u5e94\u7528\u4e8e\u5404\u79cd\u5b9e\u9645\u5e94\u7528\u4e2d\u3002  \u5e0c\u671b\u672c\u6587\u80fd\u591f\u4e3a\u8bfb\u8005\u63d0\u4f9b\u4e00\u4e2a\u5165\u95e8\u7ea7\u7684\u6307\u5bfc\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8d85\u58f0\u6ce2\u4f20\u611f\u5668\uff0c\u51ed\u501f\u5176\u975e\u63a5\u89e6\u5f0f\u6d4b\u91cf\u3001\u9ad8\u7cbe\u5ea6\u548c\u53ef\u9760\u6027\u7b49\u4f18\u52bf\uff0c\u5e7f\u6cdb\u5e94\u7528\u4e8e\u6c7d\u8f66\u3001\u5de5\u4e1a\u81ea\u52a8\u5316\u3001\u673a\u5668\u4eba\u3001\u533b\u7597\u7b49\u9886\u57df\u3002\u672c\u6587\u5c06<\/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-32653","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\/32653","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=32653"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/zh-hans\/wp-json\/wp\/v2\/posts\/32653\/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=32653"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/zh-hans\/wp-json\/wp\/v2\/categories?post=32653"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/zh-hans\/wp-json\/wp\/v2\/tags?post=32653"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}