{"id":306,"date":"2024-07-30T14:52:38","date_gmt":"2024-07-30T06:52:38","guid":{"rendered":"https:\/\/www.bihec.com\/acoustics\/?p=306"},"modified":"2024-07-30T14:55:54","modified_gmt":"2024-07-30T06:55:54","slug":"d1602d1202d1604","status":"publish","type":"post","link":"https:\/\/www.bihec.com\/acoustics\/d1602d1202d1604\/","title":{"rendered":"PRECISION ACOUSTICS,PA,D1602,D1202,D1604,\u819c\u6c34\u58f0\u4f20\u611f\u5668"},"content":{"rendered":"
PRECISION ACOUSTICS,PA<\/a>,D1602<\/a>,D1202<\/a>,D1604<\/a>,\u819c\u6c34\u58f0\u4f20\u611f\u5668<\/a><\/p>\n \u819c\u6c34\u58f0\u4f20\u611f\u5668<\/a><\/p>\n Precision Acoustics<\/a> \u516c\u53f8\u751f\u4ea7\u9ad8\u8d28\u91cf\u7684\u5171\u5e73\u9762\u819c\u6c34\u58f0\u4f20\u611f\u5668\uff0c\u8fd9\u4e9b\u4f20\u611f\u5668\u7ecf\u8fc7\u5f00\u53d1\uff0c\u65e8\u5728\u6ee1\u8db3MHz\u8d85\u58f0\u6ce2\u6d4b\u91cf\u7684\u4e25\u683c\u8981\u6c42\u3002<\/p>\n \u5dee\u5206\u819c\u6c34\u58f0\u4f20\u611f\u5668\u6a21\u578b\u9002\u7528\u4e8e\u6700\u82db\u523b\u7684\u3001\u5bbd\u5e26\u6d4b\u91cf\u573a\u5408\uff0c\u4f46\u9700\u8981\u6c34\u8d28\u975e\u5e38\u4f4e\u7684\u6c34\u73af\u5883\u3002<\/p>\n \u5dee\u5206\u8f93\u5165\u524d\u7f6e\u653e\u5927\u5668<\/a>\u5d4c\u5165\u5728\u6c34\u58f0\u4f20\u611f\u5668\u73af\u4e2d\uff0c\u819c\u4e0a\u7684\u7535\u6781\u56fe\u6848\u7ecf\u8fc7\u91cd\u65b0\u8bbe\u8ba1\uff0c\u786e\u4fdd\u4e86\u4e0d\u5bf9\u79f0\u7535\u6781\u9762\u79ef\u3002\u7ed3\u679c\u662f\u4fe1\u566a\u6bd4\u5f97\u5230\u4e86\u6539\u5584\uff0c\u4f7f\u5f97\u57fa\u4e8e9 \u00b5m\u819c\u7684\u819c\u6c34\u58f0\u4f20\u611f\u5668\u80fd\u591f\u6d4b\u91cf\u8d85\u8fc7120 MHz\u7684\u8c10\u6ce2\u5206\u91cf\u3002<\/p>\n UT\u578b\u819c\u6c34\u58f0\u4f20\u611f\u5668\u662f\u5728\u65e0\u6cd5\u4fdd\u8bc1\u6c34\u8d28\u7684\u5e7f\u5e26\u5bbd\u6d4b\u91cf\u4e2d\u7684\u9996\u9009\u4ea7\u54c1\u3002<\/p>\n \u5b83\u4eec\u53ef\u4ee5\u5355\u72ec\u4f7f\u7528\uff0c\u4e5f\u53ef\u4ee5\u4e0ePrecision Acoustics\u7684\u4fe1\u53f7\u653e\u5927\u5668<\/a>\u7ed3\u5408\u4f7f\u7528\uff0c\u4ee5\u51cf\u5c11\u566a\u58f0\u5e76\u5728\u5bbd\u5e26\u8303\u56f4\u5185\u6dfb\u52a0\u6709\u9650\u7684\u589e\u76ca\u3002\u5982\u679c\u9700\u8981\u989d\u5916\u7684\u589e\u76ca\uff0c\u819c\u6c34\u58f0\u4f20\u611f\u5668\u4e5f\u53ef\u4ee5\u4e0e\u6c34\u58f0\u4f20\u611f\u5668\u589e\u5f3a\u653e\u5927\u5668<\/a>\u914d\u5408\u4f7f\u7528\uff0c\u589e\u52a028 dB\u7684\u589e\u76ca\u3002<\/p>\n —\u5dee\u5206\u819c 0.2 \u6beb\u7c73<\/a><\/strong><\/p>\n \u7528\u4e8e\u9ad8\u9891\u8d85\u58f0\u6ce2\u538b\u529b\u6d4b\u91cf<\/a>\uff0c\u5176\u4e2d\u6700\u5c0f\u5316\u7a7a\u95f4\u5e73\u5747\u662f\u91cd\u8981\u7684\uff0c\u63a8\u8350\u4f7f\u7528\u8fd9\u79cd\u819c\u7247\u3002<\/p>\n \u6982\u8ff0<\/strong> 16 \u5fae\u7c73 0.2 \u6beb\u7c73\u819c\u6c34\u58f0\u4f20\u611f\u5668 \u2013 \u8ba2\u8d2d\u4ee3\u7801 D1602 12 \u5fae\u7c73 0.2 \u6beb\u7c73\u819c\u6c34\u58f0\u4f20\u611f\u5668 \u2013 \u8ba2\u8d2d\u4ee3\u7801 D1202 \u6b64\u6c34\u58f0\u4f20\u611f\u5668\u5fc5\u987b\u5728\u53bb\u79bb\u5b50\u6c34\u4e2d\u4f7f\u7528\u3002\u5b83\u914d\u5907\u4e86\u4e13\u7528\u7684\u7535\u6e90\u4f9b\u5e94\uff0c\u5e76\u5177\u670950 \u03a9 \u7684\u8f93\u51fa\u963b\u6297\u3002<\/p>\n \u6280\u672f\u89c4\u683c<\/strong><\/p>\n 0.2 \u6beb\u7c73\u5dee\u5206\u819c\u6c34\u58f0\u4f20\u611f\u5668\u662fPrecision Acoustics\u6709\u9650\u516c\u53f8\u751f\u4ea7\u7684\u4e00\u7cfb\u5217\u819c\u6c34\u58f0\u4f20\u611f\u5668\u4e4b\u4e00\u3002\u5b83\u8bbe\u8ba1\u7528\u4e8e\u4e0e\u5176\u4e13\u7528\u7535\u6e90\u7ed3\u5408\u5f62\u6210\u6c34\u58f0\u4f20\u611f\u5668\u7cfb\u7edf<\/a>\u3002\u672c\u6570\u636e\u8868\u4e2d\u62a5\u544a\u7684\u5c5e\u6027\u5747\u6307\u4e0e0.2 \u6beb\u7c73\u5dee\u5206\u819c\u6c34\u58f0\u4f20\u611f\u5668\u548c\u7535\u6e90\u7ed3\u5408\u7684\u6c34\u58f0\u4f20\u611f\u5668\u7cfb\u7edf\u7684\u5c5e\u6027\u3002\u6c34\u58f0\u4f20\u611f\u5668\u7684\u6d3b\u52a8\u5143\u4ef6\u5927\u5c0f\u5f71\u54cd\u591a\u79cd\u6027\u80fd\uff0c\u5305\u62ec\u7075\u654f\u5ea6\u3001\u9891\u7387\u54cd\u5e94\u3001\u65b9\u5411\u54cd\u5e94\u3001\u52a8\u6001\u8303\u56f4\u548c\u7b49\u6548\u566a\u58f0\u538b\u529b\u3002\u6b64\u6280\u672f\u6570\u636e\u8868\u7b26\u5408IEC 62127 \u2013 \u7b2c3\u90e8\u5206 [3] \u7684\u8981\u6c42\uff0c\u8be6\u7ec6\u8bf4\u660e\u4e860.2 \u6beb\u7c73\u5dee\u5206\u819c\u6c34\u58f0\u4f20\u611f\u5668\u7cfb\u7edf\u7684\u89c4\u683c\u30020.2 \u6beb\u7c73\u5dee\u5206\u819c\u6c34\u58f0\u4f20\u611f\u5668\u662f\u4e00\u79cd\u91d1\u6807\u51c6\u6d4b\u91cf\u8bbe\u5907\uff0c\u4e13\u4e3a\u57281.0 MHz \u5230 40 MHz\u9891\u7387\u8303\u56f4\u5185\u5e7f\u6cdb\u5e94\u7528\uff0c\u7279\u522b\u9002\u7528\u4e8e\u8bca\u65ad\u8d85\u58f0\u9886\u57df\uff0c\u63d0\u4f9b\u9ad8\u7075\u654f\u5ea6\u548c\u5bbd\u5e7f\u7684\u9891\u7387\u54cd\u5e94\u3002<\/p>\n \u4ea7\u54c1\u63cf\u8ff0 <\/p>\n <\/p>\n <\/p>\n <\/p>\n <\/p>\n\n
\n0.2 \u6beb\u7c73\u5dee\u5206\u819c\u6c34\u58f0\u4f20\u611f\u5668\u662f\u4e00\u6b3e\u91d1\u6807\u51c6\u6c34\u58f0\u4f20\u611f\u5668\uff0c\u63d0\u4f9b\u4f18\u5f02\u7684\u7075\u654f\u5ea6\u3001\u9891\u7387\u54cd\u5e94\u3001\u65b9\u5411\u54cd\u5e94\u3001\u52a8\u6001\u8303\u56f4\u548c\u566a\u58f0\u7b49\u6548\u538b\u529b\uff0c\u9002\u7528\u4e8e1 MHz \u5230 60 MHz \u8303\u56f4\u5185\u7684\u6d4b\u91cf\u30020.2 \u6beb\u7c73\u7684\u6d3b\u52a8\u533a\u57df\u63d0\u4f9b\u8db3\u591f\u7684\u7075\u654f\u5ea6\uff0c\u53ef\u6d4b\u91cf\u7ea6\u4e3a3\u5343\u5e15\u7684\u4fe1\u53f7<\/p>\n