{"id":33387,"date":"2023-04-21T23:39:12","date_gmt":"2023-04-22T04:39:12","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/how-to-make-homemade-pressure-sensor\/"},"modified":"2025-01-20T23:24:46","modified_gmt":"2025-01-21T04:24:46","slug":"how-to-make-homemade-pressure-sensor","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/zh-hans\/how-to-make-homemade-pressure-sensor\/","title":{"rendered":"\u81ea\u5236\u538b\u529b\u4f20\u611f\u5668\uff1a\u539f\u7406\u8be6\u89e3\u4e0e\u5236\u4f5c\u6b65\u9aa4\u5168\u653b\u7565"},"content":{"rendered":"<p>\u81ea\u5236\u538b\u529b\u4f20\u611f\u5668\u8be6\u89e3<\/p>\n<p>\u538b\u529b\u4f20\u611f\u5668\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5404\u4e2a\u9886\u57df\uff0c\u4ece\u7b80\u5355\u7684\u8840\u538b\u8ba1\u5230\u590d\u6742\u7684\u5de5\u4e1a\u81ea\u52a8\u5316\u7cfb\u7edf\uff0c\u90fd\u9700\u8981\u7cbe\u786e\u7684\u538b\u529b\u6d4b\u91cf\u3002\u5e02\u9762\u4e0a\u6709\u5404\u79cd\u5404\u6837\u7684\u538b\u529b\u4f20\u611f\u5668\u53ef\u4f9b\u9009\u62e9\uff0c\u4f46\u5236\u4f5c\u4e00\u4e2a\u7b80\u5355\u7684\u81ea\u5236\u538b\u529b\u4f20\u611f\u5668\u4e5f\u662f\u5b8c\u5168\u53ef\u884c\u7684\uff0c\u8fd9\u5bf9\u4e8e\u5b66\u4e60\u548c\u5b9e\u9a8c\u6765\u8bf4\u975e\u5e38\u6709\u76ca\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u51e0\u79cd\u81ea\u5236\u538b\u529b\u4f20\u611f\u5668\u7684\u65b9\u6848\uff0c\u5e76\u63a2\u8ba8\u5176\u4f18\u7f3a\u70b9\u3002<\/p>\n<h3>\u5229\u7528\u538b\u963b\u6548\u5e94\u5236\u4f5c\u538b\u529b\u4f20\u611f\u5668<\/h3>\n<p>\u538b\u963b\u6548\u5e94\u662f\u6307\u6750\u6599\u7684\u7535\u963b\u7387\u968f\u65bd\u52a0\u7684\u538b\u529b\u800c\u53d8\u5316\u7684\u73b0\u8c61\u3002\u8bb8\u591a\u6750\u6599\u90fd\u8868\u73b0\u51fa\u8fd9\u79cd\u7279\u6027\uff0c\u4f8b\u5982\u7845\u3002\u5229\u7528\u8fd9\u79cd\u6548\u5e94\uff0c\u6211\u4eec\u53ef\u4ee5\u5236\u4f5c\u4e00\u4e2a\u7b80\u5355\u7684\u538b\u529b\u4f20\u611f\u5668\u3002<\/p>\n<p><strong>\u6750\u6599:<\/strong><\/p>\n<ul>\n<li>\u4e00\u5757\u7845\u7247\uff08\u53ef\u4ee5\u4f7f\u7528\u5e9f\u5f03\u7684\u592a\u9633\u80fd\u7535\u6c60\u677f\u4e2d\u7684\u7845\u7247\uff09<\/li>\n<li>\u4e24\u6839\u5bfc\u7535\u7ec6\u7ebf<\/li>\n<li>\u4e07\u7528\u8868<\/li>\n<li>\u80f6\u6c34<\/li>\n<li>\u575a\u786c\u7684\u5e95\u5ea7<\/li>\n<\/ul>\n<p><strong>\u6b65\u9aa4:<\/strong><\/p>\n<ol>\n<li>\u5728\u7845\u7247\u4e0a\u7528\u7ec6\u7ebf\u8fde\u63a5\u4e24\u4e2a\u7535\u6781\uff0c\u786e\u4fdd\u8fde\u63a5\u826f\u597d\uff0c\u5e76\u907f\u514d\u77ed\u8def\u3002<\/li>\n<li>\u5c06\u7845\u7247\u56fa\u5b9a\u5728\u575a\u786c\u7684\u5e95\u5ea7\u4e0a\uff0c\u786e\u4fdd\u7845\u7247\u4e0e\u5e95\u5ea7\u63a5\u89e6\u826f\u597d\u3002<\/li>\n<li>\u4f7f\u7528\u4e07\u7528\u8868\u6d4b\u91cf\u7845\u7247\u7684\u7535\u963b\u3002<\/li>\n<li>\u5728\u7845\u7247\u4e0a\u65bd\u52a0\u4e0d\u540c\u7684\u538b\u529b\uff0c\u5e76\u8bb0\u5f55\u4e0b\u76f8\u5e94\u7684\u7535\u963b\u503c\u3002<\/li>\n<\/ol>\n<p><strong>\u6570\u636e:<\/strong>  (\u793a\u4f8b\u6570\u636e\uff0c\u5b9e\u9645\u6570\u636e\u53d6\u51b3\u4e8e\u7845\u7247\u7684\u7279\u6027\u548c\u65bd\u52a0\u7684\u538b\u529b)<\/p>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>\u538b\u529b (kPa)<\/th>\n<th>\u7535\u963b (\u03a9)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>0<\/td>\n<td>1000<\/td>\n<\/tr>\n<tr>\n<td>10<\/td>\n<td>980<\/td>\n<\/tr>\n<tr>\n<td>20<\/td>\n<td>960<\/td>\n<\/tr>\n<tr>\n<td>30<\/td>\n<td>940<\/td>\n<\/tr>\n<tr>\n<td>40<\/td>\n<td>920<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u901a\u8fc7\u7ed8\u5236\u538b\u529b\u4e0e\u7535\u963b\u7684\u5173\u7cfb\u66f2\u7ebf\uff0c\u53ef\u4ee5\u5f97\u5230\u4e00\u4e2a\u538b\u529b-\u7535\u963b\u7684\u6821\u51c6\u66f2\u7ebf\uff0c\u4ece\u800c\u6839\u636e\u6d4b\u5f97\u7684\u7535\u963b\u503c\u8ba1\u7b97\u51fa\u538b\u529b\u3002\u8fd9\u79cd\u65b9\u6cd5\u7b80\u5355\u6613\u884c\uff0c\u4f46\u7cbe\u5ea6\u76f8\u5bf9\u8f83\u4f4e\uff0c\u4e14\u53d7\u73af\u5883\u6e29\u5ea6\u5f71\u54cd\u8f83\u5927\u3002<\/p>\n<h3>\u5229\u7528\u7535\u5bb9\u5f0f\u539f\u7406\u5236\u4f5c\u538b\u529b\u4f20\u611f\u5668<\/h3>\n<p>\u7535\u5bb9\u5f0f\u538b\u529b\u4f20\u611f\u5668\u5229\u7528\u538b\u529b\u53d8\u5316\u6539\u53d8\u7535\u5bb9\u6765\u6d4b\u91cf\u538b\u529b\u3002<\/p>\n<p><strong>\u6750\u6599:<\/strong><\/p>\n<ul>\n<li>\u4e24\u5757\u91d1\u5c5e\u8584\u7247<\/li>\n<li>\u7edd\u7f18\u6750\u6599\uff08\u4f8b\u5982\u5851\u6599\u8584\u819c\uff09<\/li>\n<li>\u4e07\u7528\u8868<\/li>\n<li>\u7535\u5bb9\u6d4b\u91cf\u4eea<\/li>\n<\/ul>\n<p><strong>\u6b65\u9aa4:<\/strong><\/p>\n<ol>\n<li>\u5c06\u4e24\u5757\u91d1\u5c5e\u8584\u7247\u7528\u7edd\u7f18\u6750\u6599\u9694\u5f00\uff0c\u5f62\u6210\u4e00\u4e2a\u7b80\u5355\u7684\u7535\u5bb9\u5668\u3002<\/li>\n<li>\u5c06\u8fd9\u4e2a\u7535\u5bb9\u5668\u8fde\u63a5\u5230\u7535\u5bb9\u6d4b\u91cf\u4eea\u4e0a\u3002<\/li>\n<li>\u5728\u91d1\u5c5e\u8584\u7247\u4e0a\u65bd\u52a0\u4e0d\u540c\u7684\u538b\u529b\uff0c\u5e76\u8bb0\u5f55\u4e0b\u76f8\u5e94\u7684\u7535\u5bb9\u503c\u3002<\/li>\n<\/ol>\n<p><strong>\u6570\u636e:<\/strong> (\u793a\u4f8b\u6570\u636e\uff0c\u5b9e\u9645\u6570\u636e\u53d6\u51b3\u4e8e\u91d1\u5c5e\u8584\u7247\u7684\u9762\u79ef\u3001\u95f4\u8ddd\u548c\u4ecb\u7535\u5e38\u6570)<\/p>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>\u538b\u529b (kPa)<\/th>\n<th>\u7535\u5bb9 (pF)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>0<\/td>\n<td>100<\/td>\n<\/tr>\n<tr>\n<td>10<\/td>\n<td>105<\/td>\n<\/tr>\n<tr>\n<td>20<\/td>\n<td>110<\/td>\n<\/tr>\n<tr>\n<td>30<\/td>\n<td>115<\/td>\n<\/tr>\n<tr>\n<td>40<\/td>\n<td>120<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u7c7b\u4f3c\u5730\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u7ed8\u5236\u538b\u529b\u4e0e\u7535\u5bb9\u7684\u5173\u7cfb\u66f2\u7ebf\uff0c\u5f97\u5230\u4e00\u4e2a\u538b\u529b-\u7535\u5bb9\u7684\u6821\u51c6\u66f2\u7ebf\uff0c\u4ece\u800c\u6839\u636e\u6d4b\u5f97\u7684\u7535\u5bb9\u503c\u8ba1\u7b97\u51fa\u538b\u529b\u3002\u8fd9\u79cd\u65b9\u6cd5\u7684\u7cbe\u5ea6\u6bd4\u538b\u963b\u5f0f\u65b9\u6cd5\u7565\u9ad8\uff0c\u4f46\u4ecd\u7136\u53d7\u5230\u73af\u5883\u56e0\u7d20\u7684\u5f71\u54cd\u3002<\/p>\n<h3>\u57fa\u4e8e\u538b\u7535\u6548\u5e94\u7684\u4f20\u611f\u5668(\u7b80\u8ff0)<\/h3>\n<p>\u538b\u7535\u6548\u5e94\u662f\u6307\u67d0\u4e9b\u6750\u6599\u5728\u53d7\u5230\u538b\u529b\u65f6\u4f1a\u4ea7\u751f\u7535\u8377\u7684\u73b0\u8c61\u3002\u4e00\u4e9b\u538b\u7535\u6676\u4f53\uff08\u4f8b\u5982\u77f3\u82f1\uff09\u53ef\u4ee5\u88ab\u7528\u6765\u5236\u4f5c\u538b\u529b\u4f20\u611f\u5668\uff0c\u8fd9\u79cd\u4f20\u611f\u5668\u8f93\u51fa\u7684\u662f\u7535\u538b\u4fe1\u53f7\uff0c\u800c\u975e\u7535\u963b\u6216\u7535\u5bb9\u53d8\u5316\u3002 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