{"id":377,"date":"2024-07-30T16:38:58","date_gmt":"2024-07-30T08:38:58","guid":{"rendered":"https:\/\/www.bihec.com\/acoustics\/?p=377"},"modified":"2024-07-30T16:38:58","modified_gmt":"2024-07-30T08:38:58","slug":"alberich-tile","status":"publish","type":"post","link":"https:\/\/www.bihec.com\/acoustics\/alberich-tile\/","title":{"rendered":"PRECISION ACOUSTICS,PA,Alberich tile,\u4f4e\u9891\u5438\u58f0\u677f\u6750\u6599"},"content":{"rendered":"
PRECISION ACOUSTICS,PA<\/a>,Alberich tile<\/a>,\u4f4e\u9891\u5438\u58f0\u677f\u6750\u6599<\/a><\/p>\n \u4f4e\u9891\u5438\u58f0\u677f\u6750\u6599<\/p>\n \u7cbe\u5bc6\u58f0\u5b66\u662f\u7531\u56fd\u5bb6\u7269\u7406\u5b9e\u9a8c\u5ba4\u5f00\u53d1\u7684\u4e00\u7cfb\u5217\u5438\u58f0\u677f\u6750\u6599\u7684\u72ec\u5bb6\u4f9b\u5e94\u5546\uff0c\u5e76\u83b7\u5f97\u4e86\u201cNPL\u6280\u672f\u5e94\u7528\u201d\u8ba4\u8bc1\u3002<\/p>\n \u8fd9\u4e9b\u74f7\u7816\u5728\u9891\u7387\u4f4e\u4e8e1.5 MHz\u7684\u8303\u56f4\u5185\u63d0\u4f9b\u4e86\u9ad8\u6c34\u5e73\u7684\u56de\u58f0\u51cf\u5c11\u548c\u63d2\u5165\u635f\u5931\u3002\u963f\u5c14\u8d1d\u91cc\u5947\u74f7\u7816<\/p>\n \u963f\u5c14\u8d1d\u91cc\u5947\u74f7\u7816\u662f\u4e13\u4e3a\u6c34\u4e0b\u4f7f\u7528\u800c\u5f00\u53d1\u7684\u58f0\u5b66\u5438\u58f0\u6750\u6599<\/a>\u3002<\/p>\n \u6982\u8ff0<\/p>\n NPL\u6280\u672f\u5e94\u7528\u5b83\u7684\u6027\u80fd\u5df2\u7ecf\u4f18\u5316\uff0c\u9002\u7528\u4e8e5 kHz\u81f320 kHz\u7684\u9891\u7387\u8303\u56f4\uff0c10 kHz\u65f6\u7684\u63d2\u5165\u635f\u5931\u4e3a25 dB\uff0c\u56de\u58f0\u51cf\u5c11\u4e3a15 dB\u3002<\/p>\n \u8be5\u74f7\u7816\u5c3a\u5bf8\u4e3a600 mm x 300 mm x 85 mm\uff0c\u91cd\u91cf\u4e3a31 kg\u3002\u963f\u5c14\u8d1d\u91cc\u5947\u74f7\u7816\uff0c\u7531\u58f0\u5b66\u805a\u5408\u7269\u6709\u9650\u516c\u53f8\u751f\u4ea7\uff0c\u662f\u4e00\u79cd\u58f0\u5b66\u5438\u58f0\u74f7\u7816\uff0c\u65e8\u5728\u6ee1\u8db3\u4f4e\u4e8e25 kHz\u9891\u7387\u8303\u56f4\u5185\u5e94\u7528\u7684\u9700\u6c42\u3002\u5b83\u662f\u4e00\u79cd\u5fae\u6ce1\u586b\u5145\u7684\u9884\u5236\u805a\u6c28\u916f\u677f\uff0c\u8868\u9762\u7ed3\u6784\u5316\uff0c\u4f4d\u4e8e35 mm\u539a\u7684\u5927\u5b54\u5c42\u4e4b\u4e0a\u3002\u8fd9\u79cd\u7ec4\u5408\u7279\u6027\u4f7f\u5176\u53ef\u4ee5\u5728\u4ee5\u4e0b\u9886\u57df\u4e2d\u4f7f\u7528\uff1a<\/p>\n \u963f\u5c14\u8d1d\u91cc\u5947\u74f7\u7816\u662f\u4f4e\u9891\u58f0\u5b66\u5438\u58f0\u6750\u6599\u7cfb\u5217\u7684\u4e00\u90e8\u5206\uff0c\u572825 kHz\u4ee5\u4e0b\u7684\u9891\u7387\u8303\u56f4\u5185\u63d0\u4f9b\u6bd4\u5176\u4ed6\u4efb\u4f55\u6750\u6599\u66f4\u9ad8\u6c34\u5e73\u7684\u63d2\u5165\u635f\u5931\u548c\u5206\u6570\u529f\u7387\u8017\u6563\u3002\u867d\u7136\u963f\u5c14\u8d1d\u91cc\u5947\u74f7\u7816\u63d0\u4f9b\u4e86\u826f\u597d\u7684\u56de\u58f0\u51cf\u5c11\u6c34\u5e73\uff0c\u4f46\u5728\u8fd9\u65b9\u9762\uff0cSF5048\u7684\u6027\u80fd\u7565\u4f18\u3002<\/p>\n <\/p>\n -\u63d2\u5165\u635f\u5931\uff08IL\uff09<\/strong>\u5b9a\u4e49\u4e3a IL = \u221220 log10(Pt \/ Pi)\uff0c\u5176\u4e2d Pt \u662f\u901a\u8fc7\u6837\u54c1\u4f20\u64ad\u7684\u58f0\u538b\u5e45\u5ea6\uff0cPi \u662f\u4f5c\u7528\u5728\u6837\u54c1\u4e0a\u7684\u58f0\u538b\u5e45\u5ea6\u3002\u5df2\u7ecf\u901a\u8fc7\u5b9e\u9a8c\u786e\u5b9a\u4e86\u5b89\u88c5\u57285\u6beb\u7c73\u539a\u94a2\u677f\u4e0a\u7684\u963f\u5c14\u8d1d\u91cc\u5947\u74f7\u7816\u7684\u63d2\u5165\u635f\u5931\uff0c\u5e76\u4e14\u8fd9\u5728\u56fe1\u4e2d\u663e\u793a\u51fa\u6765\u3002\u63d2\u5165\u635f\u5931\u6d4b\u91cf\u7684\u52a8\u6001\u8303\u56f4\u7ea6\u4e3a60 dB\uff0c\u9ad8\u4e8e\u8fd9\u4e2a\u503c\u7684\u6570\u636e\u4e0d\u80fd\u4fdd\u8bc1<\/p>\n <\/p>\n -\u56de\u58f0\u8870\u51cf\uff08ER\uff09<\/strong>\u5b9a\u4e49\u4e3a ER = \u221220 log10(Pr \/ Pi)\uff0c\u5176\u4e2d Pr \u662f\u4ece\u6837\u54c1\u53cd\u5c04\u56de\u6765\u7684\u58f0\u538b\u5e45\u5ea6\uff0cPi \u662f\u4f5c\u7528\u5728\u6837\u54c1\u4e0a\u7684\u58f0\u538b\u5e45\u5ea6\u3002\u5df2\u7ecf\u901a\u8fc7\u5b9e\u9a8c\u786e\u5b9a\u4e86\u5b89\u88c5\u57285\u6beb\u7c73\u539a\u94a2\u677f\u4e0a\u7684\u4e24\u4e2a\u963f\u5c14\u8d1d\u91cc\u5947\u74f7\u7816\u6837\u54c1\u7684\u56de\u58f0\u8870\u51cf\uff0c\u5e76\u4e14\u8fd9\u5728\u56fe2\u4e2d\u663e\u793a\u51fa\u6765\u3002\u56de\u58f0\u8870\u51cf\u6d4b\u91cf\u7684\u52a8\u6001\u8303\u56f4\u7ea6\u4e3a60 dB\uff0c\u9ad8\u4e8e\u8fd9\u4e2a\u503c\u7684\u6570\u636e\u4e0d\u80fd\u4fdd\u8bc1\u3002<\/p>\n <\/p>\n \u963f\u5c14\u8d1d\u91cc\u5947\u74f7\u7816\u7684\u63d2\u5165\u635f\u5931\uff08IL\uff09\u548c\u56de\u58f0\u8870\u51cf\uff08ER\uff09\u6570\u636e\u7531\u4f26\u6566\u56fd\u5bb6\u7269\u7406\u5b9e\u9a8c\u5ba4\u63d0\u4f9b\u3002\u963f\u5c14\u8d1d\u91cc\u5947\u74f7\u7816\u5df2\u7ecf\u8fdb\u884c\u4e86\u5e7f\u6cdb\u7684\u6821\u51c6\uff0c\u6709\u5173\u5176\u6027\u80fd\u968f\u6e29\u5ea6\u548c\u9759\u6c34\u538b\u53d8\u5316\u7684\u8fdb\u4e00\u6b65\u6570\u636e\u53ef\u4ee5\u901a\u8fc7Precision Acoustics<\/a> Ltd\u7533\u8bf7\u83b7\u53d6<\/p>\n -\u5206\u6570\u529f\u7387\u8017\u6563\uff08FPD\uff09<\/strong>\u5b9a\u4e49\u4e3a FPD = 1 – (Pr \/ Pi)^2 – (Pt \/ Pi)\uff0c\u5176\u4e2d Pr \u662f\u4ece\u6837\u54c1\u53cd\u5c04\u7684\u58f0\u538b\uff0cPt \u662f\u901a\u8fc7\u6837\u54c1\u4f20\u8f93\u7684\u58f0\u538b\uff0cPi \u662f\u4f5c\u7528\u5728\u6837\u54c1\u4e0a\u7684\u58f0\u538b\u3002\u8fd9\u4e00\u5b9a\u4e49\u662f\u57fa\u4e8e\u5bf9\u963f\u5c14\u8d1d\u91cc\u5947\u74f7\u7816\u7684ER\u548cIL\u6d4b\u91cf\u63a8\u5bfc\u5f97\u51fa\u7684\uff0c\u5e76\u5728\u56fe\u88683\u4e2d\u5c55\u793a\u3002<\/p>\n <\/p>\n <\/p>\n \n\n