{"id":2881,"date":"2023-12-13T15:04:53","date_gmt":"2023-12-13T07:04:53","guid":{"rendered":"https:\/\/www.unictron.com\/ultrasonic-transducers\/piezoelectric-technologies\/basic-sound-physics-i-en20231212\/"},"modified":"2024-02-15T10:41:11","modified_gmt":"2024-02-15T02:41:11","slug":"basic-sound-physics-i-en20231212","status":"publish","type":"page","link":"https:\/\/www.unictron.com\/ultrasonic-transducers\/piezoelectric-technologies\/basic-sound-physics-i-en20231212\/?lang=zh-hant","title":{"rendered":"\u57fa\u790e\u8072\u5b78\u7269\u7406 (I)"},"content":{"rendered":"\n<h2><strong>\u751a\u9ebc\u662f\u8072\u6ce2 ?<\/strong><\/h2>\n\n\n\n<ul>\n<li>\u4eba\u985e\u807d\u89ba\u80fd\u5bdf\u89ba\u7684\u6ce2\u52d5\uff0c\u7a31\u4e4b\u70ba\u8072\u97f3\uff0c\u6b64\u6642\u4e4b\u8072\u6ce2\u7a31\u70ba\u53ef\u807d\u6ce2\u3002\u8072\u97f3\u7684\u983b\u7387\u4e00\u822c\u6703\u4ee5\u8d6b\u8332(Hz)\u8868\u793a\uff0c\u6307\u6bcf\u79d2\u9418\u9031\u671f\u6027\u9707\u52d5\u7684\u6b21\u6578\u3002\u4e00\u822c\u800c\u8a00\uff0c\u4eba\u8033\u53ef\u807d\u5230\u7684\u8072\u6ce2\u983b\u7387\u7bc4\u570d\u5927\u7d04\u70ba20\u8d6b\u8332(Hz)~20\u5343\u8d6b\u8332(kHz)\uff0c\u8d85\u904e\u4eba\u8033\u7684\u53ef\u807d\u7bc4\u570d\u7a31\u4e4b\u70ba\u8d85\u97f3\u6ce2 (&gt;20 kHz)\u3002\u800c\u6240\u8b02\u8d85\u97f3\u6ce2\uff0c\u5176\u7269\u7406\u6027\u8cea\u8207\u53ef\u807d\u6ce2\u76f8\u540c\uff0c\u53ea\u80fd\u900f\u904e\u4ecb\u8cea\u50b3\u64ad\uff0c\u4f8b\u5982\u6c23\u9ad4\u6216\u6db2\u9ad4\u6216\u56fa\u9ad4\uff1b\u56e0\u6b64\uff0c\u8072\u6ce2\u8207\u8d85\u97f3\u6ce2\u5747\u7121\u6cd5\u5728\u771f\u7a7a\u4e2d\u50b3\u64ad\u3002<\/li>\n<\/ul>\n\n\n\n<ul>\n<li>\u8072\u6ce2\u662f\u4e00\u7a2e\u7e31\u6ce2(\u758f\u5bc6\u6ce2)\uff0c\u5982\u4e0b\u5716\u6240\u793a\uff1a<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" src=\"https:\/\/i1.wp.com\/www.unictron.com\/ultrasonic-transducers\/wp-content\/uploads\/sites\/8\/2023\/12\/01.png?resize=768%2C545&#038;ssl=1\" alt=\"\" class=\"wp-image-2884\" width=\"768\" height=\"545\" srcset=\"https:\/\/i1.wp.com\/www.unictron.com\/ultrasonic-transducers\/wp-content\/uploads\/sites\/8\/2023\/12\/01.png?resize=1024%2C726&amp;ssl=1 1024w, https:\/\/i1.wp.com\/www.unictron.com\/ultrasonic-transducers\/wp-content\/uploads\/sites\/8\/2023\/12\/01.png?resize=300%2C213&amp;ssl=1 300w, https:\/\/i1.wp.com\/www.unictron.com\/ultrasonic-transducers\/wp-content\/uploads\/sites\/8\/2023\/12\/01.png?resize=768%2C545&amp;ssl=1 768w, https:\/\/i1.wp.com\/www.unictron.com\/ultrasonic-transducers\/wp-content\/uploads\/sites\/8\/2023\/12\/01.png?resize=600%2C426&amp;ssl=1 600w, https:\/\/i1.wp.com\/www.unictron.com\/ultrasonic-transducers\/wp-content\/uploads\/sites\/8\/2023\/12\/01.png?w=1032&amp;ssl=1 1032w\" sizes=\"(max-width: 768px) 100vw, 768px\" data-recalc-dims=\"1\" \/><\/figure><\/div>\n\n\n<ul>\n<li>\u7e31\u6ce2\u662f\u6307\u4ecb\u8cea(\u6c23\u9ad4\/\u6db2\u9ad4\/\u56fa\u9ad4)\u7c92\u5b50\u9707\u52d5\u65b9\u5411\u8207\u6ce2\u7684\u524d\u9032\u65b9\u5411\u76f8\u4e92\u5e73\u884c\u7684\u4e00\u7a2e\u6ce2\u3002<\/li>\n<\/ul>\n\n\n\n<ul>\n<li>\u8072\u6ce2\u884c\u9032\u904e\u7a0b\u4e2d\uff0c\u4ecb\u8cea\u7c92\u5b50\u53ea\u6703\u5728\u539f\u5730\u4f5c\u524d\u5f8c\u9707\u52d5\uff0c\u4e0d\u6703\u96a8\u6ce2\u524d\u9032\uff0c\u4e14\u5728\u7c92\u5b50\u76f8\u5c0d\u5bc6\u96c6\u8655(\u6ce2\u5cf0)\uff0c\u8072\u58d3\u6703\u8f03\u5927\uff0c\u5728\u7c92\u5b50\u76f8\u5c0d\u7a00\u758f\u8655(\u6ce2\u8c37)\uff0c\u8072\u58d3\u6703\u8f03\u5c0f\u3002<\/li>\n<\/ul>\n\n\n\n<ul>\n<li>\u8072\u6ce2\u5728\u4e0d\u540c\u4ecb\u8cea\u4e2d\u7684\u50b3\u64ad\u901f\u5ea6\u662f\u4e0d\u4e00\u6a23\u7684\u3002\u5728\u56fa\u9ad4\u4e2d\u539f\u5b50\u7684\u6392\u5217\u8f03\u7dca\u5bc6\uff0c\u5176\u8072\u6ce2\u80fd\u91cf\u7684\u50b3\u905e\u4e5f\u76f8\u5c0d\u8f03\u5feb\uff0c\u6240\u4ee5\u8072\u6ce2\u5728\u56fa\u9ad4\u4e2d\u7684\u50b3\u64ad\u901f\u5ea6\u5927\u65bc\u8072\u6ce2\u5728\u6db2\u9ad4\u53ca\u6c23\u9ad4\u4e2d\u7684\u50b3\u64ad\u901f\u5ea6\u3002\u8072\u901f\u7684\u8868\u793a\u65b9\u5f0f\u5982\u4e0b\uff1a<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-align-center\"><em>C(\u8072\u901f)=f(\u983b\u7387) x \u03bb(\u6ce2\u9577)<\/em><\/p>\n\n\n\n<p>\u4e0b\u8868\u662f\u8072\u6ce2\u65bc\u4e0d\u540c\u4ecb\u8cea\u5167\u7684\u8072\u901f\uff1a<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"484\" height=\"530\" src=\"https:\/\/i0.wp.com\/www.unictron.com\/ultrasonic-transducers\/wp-content\/uploads\/sites\/8\/2023\/12\/012.png?resize=484%2C530&#038;ssl=1\" alt=\"\" class=\"wp-image-2886\" srcset=\"https:\/\/i0.wp.com\/www.unictron.com\/ultrasonic-transducers\/wp-content\/uploads\/sites\/8\/2023\/12\/012.png?w=484&amp;ssl=1 484w, https:\/\/i0.wp.com\/www.unictron.com\/ultrasonic-transducers\/wp-content\/uploads\/sites\/8\/2023\/12\/012.png?resize=274%2C300&amp;ssl=1 274w\" sizes=\"(max-width: 484px) 100vw, 484px\" data-recalc-dims=\"1\" \/><\/figure><\/div>\n\n\n<h2><strong>\u8072\u6ce2\u70ba\u4ec0\u9ebc\u6703\u8870\u6e1b(Attenuation)\uff0c\u662f\u4ec0\u9ebc\u8b93\u5b83\u8870\u6e1b\u7684\u5462\uff1f<\/strong><\/h2>\n\n\n\n<p>\u8072\u97f3\u5728\u50b3\u64ad\u904e\u7a0b\u4e2d\u6703\u8d8a\u4f86\u8d8a\u5fae\u5f31\uff0c\u9019\u5c31\u662f\u8072\u6ce2\u7684\u8870\u6e1b\u3002\u9020\u6210\u8072\u6ce2\u8870\u6e1b\u7684\u539f\u56e0\u6709\u4ee5\u4e0b\u4e09\u500b\uff1a<\/p>\n\n\n\n<p>(A)\u64f4\u6563\u8870\u6e1b\uff1a<\/p>\n\n\n\n<p>\u8072\u6ce2\u5411\u56db\u5468\u50b3\u64ad\u6642\uff0c\u5176\u80fd\u91cf\u6703\u9010\u6f38\u64f4\u6563\u958b\u4f86\u3002\u80fd\u91cf\u7684\u64f4\u6563\u4f7f\u5f97\u55ae\u4f4d\u9762\u7a4d\u4e0a\u6240\u5b58\u5728\u7684\u80fd\u91cf\u6e1b\u5c0f\uff0c\u807d\u5230\u7684\u8072\u97f3\u5c31\u8b8a\u5f97\u5fae\u5f31\u3002<\/p>\n\n\n\n<p>(B)\u5438\u6536\u8870\u6e1b\uff1a<\/p>\n\n\n\n<p>\u8072\u6ce2\u5728\u4ecb\u8cea\u4e2d\u50b3\u64ad\u6642\uff0c\u7531\u65bc\u4ecb\u8cea\u7684\u7c98\u6eef\u6027\u9020\u6210\u8cea\u9ede\u4e4b\u9593\u7684\u5167\u6469\u64e6\uff0c\u5f9e\u800c\u4f7f\u4e00\u90e8\u5206\u8072\u80fd\u8f49\u8b8a\u70ba\u71b1\u80fd\uff0c\u5c0e\u81f4\u8072\u80fd\u6e1b\u5c0f\uff0c\u807d\u5230\u7684\u8072\u97f3\u5c31\u8b8a\u5f97\u5fae\u5f31\u3002<\/p>\n\n\n\n<p>(C)\u6563\u5c04\u8870\u6e1b\uff1a<\/p>\n\n\n\n<p>\u7576\u4ecb\u8cea\u4e2d\u5b58\u5728\u9846\u7c92\u72c0\u7d50\u69cb(\u5982\u6db2\u9ad4\u4e2d\u7684\u61f8\u6d6e\u7c92\u5b50\u3001\u6c23\u6ce1\uff0c\u56fa\u9ad4\u4e2d\u7684\u9846\u7c92\u72c0\u7d50\u69cb\u3001\u7f3a\u9677\u3001\u6519\u96dc\u7269\u7b49)\uff0c\u5c0e\u81f4\u8072\u6ce2\u7684\u8870\u6e1b\u7a31\u6563\u5c04\u8870\u6e1b\u3002<\/p>\n\n\n\n<p>\u6700\u7d42\u8072\u6ce2\u7684\u7e3d\u8870\u6e1b\u91cf=(A)+(B)+(C)<\/p>\n\n\n\n<ul>\n<li>\u983b\u7387\u8d8a\u9ad8\uff0c\u8d8a\u5bb9\u6613\u8870\u6e1b(\u8870\u6e1b\u5e38\u6578\u8d8a\u5927)\u3002<\/li>\n\n\n\n<li>\u4e00\u822c\u4f86\u8aaa\uff0c\u8870\u6e1b\u5e38\u6578\u7684\u5927\u5c0f\u70ba \u56fa\u9ad4 &lt; \u6db2\u9ad4 &lt; \u6c23\u9ad4<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img decoding=\"async\" src=\"https:\/\/i1.wp.com\/www.unictron.com\/ultrasonic-transducers\/wp-content\/uploads\/sites\/8\/2023\/12\/02.png?resize=544%2C450&#038;ssl=1\" alt=\"\" class=\"wp-image-2888\" width=\"544\" height=\"450\" srcset=\"https:\/\/i1.wp.com\/www.unictron.com\/ultrasonic-transducers\/wp-content\/uploads\/sites\/8\/2023\/12\/02.png?w=725&amp;ssl=1 725w, https:\/\/i1.wp.com\/www.unictron.com\/ultrasonic-transducers\/wp-content\/uploads\/sites\/8\/2023\/12\/02.png?resize=300%2C248&amp;ssl=1 300w, https:\/\/i1.wp.com\/www.unictron.com\/ultrasonic-transducers\/wp-content\/uploads\/sites\/8\/2023\/12\/02.png?resize=600%2C497&amp;ssl=1 600w\" sizes=\"(max-width: 544px) 100vw, 544px\" data-recalc-dims=\"1\" \/><\/figure>\n\n\n\n<h2><strong>\u751a\u9ebc\u662f\u5206\u8c9d (dB) ?<\/strong><\/h2>\n\n\n\n<ul>\n<li>\u5206\u8c9d (dB) \u662f\u5ea6\u91cf\u8072\u97f3\u5927\u5c0f\u7684\u4e00\u7a2e\u5e38\u898b\u55ae\u4f4d\u3002<\/li>\n\n\n\n<li>\u4e00\u500b\u6b63\u5e38\u5e74\u8f15\u4eba\u7684\u807d\u89ba\uff0c\u5f9e\u53ef\u807d\u5230\u7684\u6700\u5c0f\u8072\u97f3 (\u59823\u7c73\u5916\u4e00\u96bb\u868a\u5b50\u5728\u98db)\uff0c\u5230\u6703\u9020\u6210\u807d\u529b\u53d7\u640d\u7684\u5de8\u5927\u8072\u97ff (\u5982\u8f2a\u8239\u5f15\u64ce\u5ba4\u5167\u7684\u8072\u97ff)\uff0c\u5176\u8072\u58d3\u6578\u503c\u7684\u5927\u5c0f\u6703\u76f8\u5dee\u90541\u767e\u842c\u500d\u3002<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"896\" height=\"971\" src=\"https:\/\/i2.wp.com\/www.unictron.com\/ultrasonic-transducers\/wp-content\/uploads\/sites\/8\/2023\/12\/03.jpg?resize=896%2C971&#038;ssl=1\" alt=\"\" class=\"wp-image-2890\" srcset=\"https:\/\/i2.wp.com\/www.unictron.com\/ultrasonic-transducers\/wp-content\/uploads\/sites\/8\/2023\/12\/03.jpg?w=896&amp;ssl=1 896w, https:\/\/i2.wp.com\/www.unictron.com\/ultrasonic-transducers\/wp-content\/uploads\/sites\/8\/2023\/12\/03.jpg?resize=277%2C300&amp;ssl=1 277w, https:\/\/i2.wp.com\/www.unictron.com\/ultrasonic-transducers\/wp-content\/uploads\/sites\/8\/2023\/12\/03.jpg?resize=768%2C832&amp;ssl=1 768w, https:\/\/i2.wp.com\/www.unictron.com\/ultrasonic-transducers\/wp-content\/uploads\/sites\/8\/2023\/12\/03.jpg?resize=600%2C650&amp;ssl=1 600w\" sizes=\"(max-width: 896px) 100vw, 896px\" data-recalc-dims=\"1\" \/><\/figure>\n\n\n\n<ul>\n<li>\u4e0a\u8ff0\u8072\u58d3\u6578\u503c\u7684\u5de8\u5927\u7d1a\u6578\u5dee\u7570\u6703\u8b93\u6211\u5011\u5728\u4f7f\u7528\u4e0a\u5f88\u4e0d\u65b9\u4fbf\uff0c\u56e0\u6b64\u6709\u4e86\u5206\u8c9d (dB) \u7684\u5b9a\u7fa9\u3002<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"610\" height=\"73\" src=\"https:\/\/i0.wp.com\/www.unictron.com\/ultrasonic-transducers\/wp-content\/uploads\/sites\/8\/2023\/12\/04.png?resize=610%2C73&#038;ssl=1\" alt=\"\" class=\"wp-image-2892\" srcset=\"https:\/\/i0.wp.com\/www.unictron.com\/ultrasonic-transducers\/wp-content\/uploads\/sites\/8\/2023\/12\/04.png?w=610&amp;ssl=1 610w, https:\/\/i0.wp.com\/www.unictron.com\/ultrasonic-transducers\/wp-content\/uploads\/sites\/8\/2023\/12\/04.png?resize=300%2C36&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.unictron.com\/ultrasonic-transducers\/wp-content\/uploads\/sites\/8\/2023\/12\/04.png?resize=600%2C72&amp;ssl=1 600w\" sizes=\"(max-width: 610px) 100vw, 610px\" data-recalc-dims=\"1\" \/><\/figure><\/div>\n\n\n<ul>\n<li>\u5176\u4e2d\u201c\u53c3\u8003\u8072\u58d3\u503c\u201d\u70ba\u6b63\u5e38\u4eba\u53ef\u807d\u5230\u8072\u97f3\u7684\u6700\u5c0f\u8072\u58d3\u503c 20 uPa.<\/li>\n\n\n\n<li>\u7d93\u904e\u8072\u58d3\u7d1adB\u7684\u8f49\u63db\uff0c\u4e0a\u8ff0\u76f8\u5dee\u4e00\u767e\u842c\u500d\u7684\u5de8\u5927\u5dee\u7570\uff0c\u5c31\u6703\u8b8a\u62100 dB~120 dB\u7684\u7bc4\u570d\uff0c\u5728\u4f7f\u7528\u4e0a\u6703\u8f03\u70ba\u65b9\u4fbf\u3002<\/li>\n<\/ul>\n\n\n\n<h2><strong>\u8072\u97f3\u4e09\u8981\u7d20<\/strong><\/h2>\n\n\n\n<p>\u8072\u97f3\u7684\u7279\u6027\u53ef\u7531\u4e09\u500b\u8981\u7d20\u4f86\u63cf\u8ff0\uff0c\u5373\u97f3\u8272\u3001\u97f3\u8abf\u548c\u97ff\u5ea6\u3002<\/p>\n\n\n\n<p>(1) \u97f3\u8272 (Timbre) \u2192 \u7531\u8072\u97f3\u7684\u6ce2\u578b (Waveform) \u4f86\u6c7a\u5b9a\u3002<\/p>\n\n\n\n<p>\u97f3\u8272\u8207\u8072\u6ce2\u7684\u632f\u52d5\u6ce2\u5f62\u6709\u95dc\uff0c\u6216\u8005\u8aaa\u8207\u8072\u97f3\u7684\u983b\u8b5c\u7d50\u69cb\u6709\u95dc\u3002\u6211\u5011\u4e4b\u6240\u4ee5\u80fd\u5206\u8fa8\u51fa\u9019\u662f\u5c0f\u63d0\u7434\u7684\u8072\u97f3\uff0c\u90a3\u662f\u9577\u7b1b\u7684\u8072\u97f3\uff0c\u5c31\u662f\u56e0\u70ba\u5176\u6ce2\u578b(\u5982\u4e0b\u5716\u6240\u793a)\u4e0d\u540c\u7684\u7de3\u6545<\/p>\n\n\n\n<div class=\"is-layout-flex wp-container-2 wp-block-columns\">\n<div class=\"is-layout-flow wp-block-column\" style=\"flex-basis:100%\"><div class=\"wp-block-image\">\n<figure class=\"alignleft size-full\"><img decoding=\"async\" width=\"205\" height=\"248\" src=\"https:\/\/i2.wp.com\/www.unictron.com\/ultrasonic-transducers\/wp-content\/uploads\/sites\/8\/2023\/12\/05.png?resize=205%2C248&#038;ssl=1\" alt=\"\" class=\"wp-image-2894\" data-recalc-dims=\"1\"\/><\/figure><\/div><\/div>\n<\/div>\n\n\n\n<p>(2) \u97f3\u8abf (Pitch) \u2192 \u7531\u983b\u7387 (Frequency) \u4f86\u6c7a\u5b9a\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"556\" height=\"281\" src=\"https:\/\/i1.wp.com\/www.unictron.com\/ultrasonic-transducers\/wp-content\/uploads\/sites\/8\/2023\/12\/6.png?resize=556%2C281&#038;ssl=1\" alt=\"\" class=\"wp-image-2860\" srcset=\"https:\/\/i1.wp.com\/www.unictron.com\/ultrasonic-transducers\/wp-content\/uploads\/sites\/8\/2023\/12\/6.png?w=556&amp;ssl=1 556w, https:\/\/i1.wp.com\/www.unictron.com\/ultrasonic-transducers\/wp-content\/uploads\/sites\/8\/2023\/12\/6.png?resize=300%2C152&amp;ssl=1 300w\" sizes=\"(max-width: 556px) 100vw, 556px\" data-recalc-dims=\"1\" \/><\/figure>\n\n\n\n<p>\u97f3\u8abf\u4e3b\u8981\u8207\u8072\u6ce2\u7684\u983b\u7387\u6709\u95dc\u3002\u8072\u6ce2\u7684\u983b\u7387\u8d8a\u9ad8(\u97f3\u8abf\u8d8a\u9ad8)\uff0c\u6211\u5011\u807d\u8d77\u4f86\u7684\u8072\u97f3\u5c31\u8d8a\u9ad8\u97f3\u3002\u76f8\u53cd\u7684\uff0c\u983b\u7387\u8d8a\u4f4e(\u97f3\u8abf\u8d8a\u4f4e)\uff0c\u6211\u5011\u807d\u5230\u7684\u8072\u97f3\u5c31\u8d8a\u4f4e\u6c89\u3002<\/p>\n\n\n\n<p>(3) \u97f3\u91cf\/\u97ff\u5ea6 (Loudness) \u2192 \u7531\u632f\u5e45 (Amplitude) \u4f86\u6c7a\u5b9a\u3002<br>\u97ff\u5ea6\u548c\u8072\u6ce2\u632f\u52d5\u7684\u5e45\u5ea6\u6709\u95dc\u3002\u4e00\u822c\u8aaa\u4f86\uff0c\u8072\u6ce2\u632f\u52d5\u5e45\u5ea6\u8d8a\u5927\u5247\u97ff\u5ea6\u4e5f\u8d8a\u5927(\u807d\u8d77\u4f86\u5c31\u8d8a\u5927\u8072)\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"261\" height=\"180\" src=\"https:\/\/i1.wp.com\/www.unictron.com\/ultrasonic-transducers\/wp-content\/uploads\/sites\/8\/2023\/12\/07.png?resize=261%2C180&#038;ssl=1\" alt=\"\" class=\"wp-image-2896\" data-recalc-dims=\"1\"\/><\/figure>\n\n\n\n<h2><strong><strong>\u8072\u6ce2\u7684\u57fa\u672c\u53c3\u6578<\/strong><\/strong><\/h2>\n\n\n\n<ul>\n<li>\u8072\u58d3 (Sound Pressure)\u3002\n<ul>\n<li>\u662f\u6307\u8072\u6ce2\u901a\u904e\u4ecb\u8cea\u6642\uff0c\u7531\u632f\u52d5\u6240\u7522\u751f\u7684\u58d3\u529b\u6539\u8b8a\u91cf\uff0c\u7528\u7b26\u865fP\u8868\u793a\uff0c\u55ae\u4f4d\u70baN\/m<sup>2<\/sup>(Pa)\u3002<\/li>\n\n\n\n<li>\u8072\u58d3\u4f4d\u6e96SPL (Sound Pressure Level(L<sub>P<\/sub>))\u6216\u7a31\u8072\u58d3\u7d1a\uff0c\u662f\u8072\u97f3\u7684\u5be6\u969b\u8072\u58d3\u8207\u53c3\u8003\u8072\u58d3\u4e4b\u6bd4\uff0c\u53d6\u4ee510\u70ba\u5e95\u7684\u5c0d\u6578\uff0c\u518d\u4e58\u4ee520\uff0c\u55ae\u4f4d\u70ba\u5206\u8c9d(dB)\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"143\" height=\"76\" src=\"https:\/\/i2.wp.com\/www.unictron.com\/ultrasonic-transducers\/wp-content\/uploads\/sites\/8\/2023\/12\/8.png?resize=143%2C76&#038;ssl=1\" alt=\"\" class=\"wp-image-2863\" data-recalc-dims=\"1\"\/><\/figure><\/div>\n\n\n<ul>\n<li>\u8072\u5f37 (Sound Intensity)\u3002\n<ul>\n<li>\u662f\u6307\u67d0\u55ae\u4f4d\u6642\u9593\u5167\uff0c\u5728\u67d0\u9ede\u901a\u904e\u8207\u67d0\u65b9\u5411\u5782\u76f4\u7684\u55ae\u4f4d\u9762\u7a4d\u7684\u8072\u80fd\u5e73\u5747\u503c\uff0c\u7528\u7b26\u865f I \u8868\u793a\uff0c\u55ae\u4f4d\u70baW\/m<sup>2<\/sup>\u3002<\/li>\n\n\n\n<li>\u8072\u5f37\u4f4d\u6e96 (Sound Intensity Level(L<sub>I<\/sub>)) \u6216\u7a31\u8072\u5f37\u7d1a\uff0c\u662f\u8072\u97f3\u7684\u5be6\u969b\u8072\u5f37 I \u8207\u53c3\u8003\u8072\u5f37\u4e4b\u6bd4\uff0c\u53d6\u4ee510\u70ba\u5e95\u7684\u5c0d\u6578\uff0c\u518d\u4e58\u4ee510\uff0c\u55ae\u4f4d\u70ba\u5206\u8c9d (dB)\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"141\" height=\"76\" src=\"https:\/\/i2.wp.com\/www.unictron.com\/ultrasonic-transducers\/wp-content\/uploads\/sites\/8\/2023\/12\/9.png?resize=141%2C76&#038;ssl=1\" alt=\"\" class=\"wp-image-2865\" data-recalc-dims=\"1\"\/><\/figure><\/div>\n\n\n<ul>\n<li>\u8072\u529f\u7387 (Sound Power)\u3002\n\n\n\n\n\n\n<ul>\n<li>\u8072\u6e90\u5728\u55ae\u4f4d\u6642\u9593\u5167\u767c\u5c04\u51fa\u7684\u7e3d\u8072\u80fd\u91cf\uff0c\u55ae\u4f4d\u662f\u74e6 (W)\u3002<\/li>\n<\/ul>\n\n\n\n<ul>\n<li>\u8072\u529f\u7387\u4f4d\u6e96 (Sound Power Level(L<sub>W<\/sub>)) \u6216\u7a31\u8072\u529f\u7387\u7d1a\uff0c\u662f\u8072\u97f3\u7684\u5be6\u969b\u529f\u7387W \u8207\u53c3\u8003\u529f\u7387\u4e4b\u6bd4\uff0c\u53d6\u4ee510\u70ba\u5e95\u7684\u5c0d\u6578\uff0c\u518d\u4e58\u4ee510\uff0c\u55ae\u4f4d\u70ba\u5206\u8c9d(dB)\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"163\" height=\"76\" src=\"https:\/\/i0.wp.com\/www.unictron.com\/ultrasonic-transducers\/wp-content\/uploads\/sites\/8\/2023\/12\/10.png?resize=163%2C76&#038;ssl=1\" alt=\"\" class=\"wp-image-2867\" data-recalc-dims=\"1\"\/><\/figure><\/div>\n\n\n<p class=\"has-small-font-size\">\u5176\u4e2d\u7684\u53c3\u8003\u503c\u5b9a\u7fa9\u5982\u4e0b \uff1a<\/p>\n\n\n\n<p class=\"has-small-font-size\">P<sub>0<\/sub>\uff1a (20&#215;10<sup>-6 <\/sup>N\/m<sup>2<\/sup>)\u00e0\u6b63\u5e38\u4eba\u53ef\u807d\u5230\u8072\u97f3\u7684\u6700\u5c0f\u8072\u58d3\u503c\u3002<\/p>\n\n\n\n<p class=\"has-small-font-size\">I<sub>0<\/sub>\uff1a 10<sup>-12<\/sup> (W\/m<sup>2<\/sup>)<\/p>\n\n\n\n<p class=\"has-small-font-size\">W<sub>0 <\/sub>\uff1a 10<sup>-12<\/sup> (W)<\/p>\n\n\n\n<p class=\"has-medium-font-size\">\u8072\u5f37\u8207\u8072\u58d3\u8207\u8ddd\u96e2\u53ef\u7528\u4e0b\u5217\u516c\u5f0f\u8f49\u63db\u8a08\u7b97<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"207\" height=\"74\" src=\"https:\/\/i1.wp.com\/www.unictron.com\/ultrasonic-transducers\/wp-content\/uploads\/sites\/8\/2023\/12\/11.png?resize=207%2C74&#038;ssl=1\" alt=\"\" class=\"wp-image-2869\" data-recalc-dims=\"1\"\/><\/figure><\/div>\n\n\n<p class=\"has-small-font-size\">\u5176\u4e2dI\uff1a\u8072\u5f37\uff0cP\uff1a\u8072\u58d3\uff0c\u03c1\uff1a\u4ecb\u8cea\u5bc6\u5ea6\uff0cC\uff1a\u8072\u901f\uff0cr\uff1a\u8207\u8072\u6e90\u7684\u8ddd\u96e2<\/p>\n\n\n\n<p>\u6839\u64da\u4ee5\u4e0a\u516c\u5f0f\uff0c\u5c31\u53ef\u63a8\u7b97\u51fa\u4e0b\u5217\u7d50\u679c\uff1a<\/p>\n\n\n\n<ul>\n<li>\u7576\u8ddd\u96e2\u52a0\u500d\uff0c\u5176\u8072\u97f3\u5f37\u5ea6\u4f4d\u6e96\u6e1b\u5c116dB\uff0c \u58d3\u529b\u4f4d\u6e96SPL\u6e1b\u5c116dB\u3002<\/li>\n\n\n\n<li>\u8072\u97f3\u5f37\u5ea6\u6e1b\u5c111\u534a\u6642\uff0c \u8072\u58d3\u4f4d\u6e96SPL\u6e1b\u5c11 3dB\u3002<\/li>\n\n\n\n<li>\u8072\u58d3\u6e1b\u5c111\u534a\u6642\uff0c \u8072\u58d3\u4f4d\u6e96SPL\u6e1b\u5c116dB\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u751a\u9ebc\u662f\u8072\u6ce2 ? C(\u8072\u901f)=f(\u983b\u7387) x \u03bb(\u6ce2\u9577) \u4e0b\u8868\u662f\u8072\u6ce2\u65bc\u4e0d\u540c\u4ecb\u8cea\u5167\u7684\u8072\u901f\uff1a \u8072\u6ce2\u70ba\u4ec0\u9ebc\u6703\u8870\u6e1b(Attenuation)\uff0c\u662f\u4ec0\u9ebc\u8b93\u5b83\u8870\u6e1b\u7684\u5462\uff1f \u8072\u97f3\u5728\u50b3\u64ad\u904e\u7a0b\u4e2d\u6703\u8d8a\u4f86\u8d8a\u5fae\u5f31\uff0c\u9019\u5c31\u662f\u8072\u6ce2\u7684\u8870\u6e1b\u3002\u9020\u6210\u8072\u6ce2\u8870\u6e1b\u7684\u539f\u56e0\u6709\u4ee5\u4e0b\u4e09\u500b\uff1a (A)\u64f4\u6563\u8870\u6e1b\uff1a \u8072\u6ce2\u5411\u56db\u5468\u50b3\u64ad\u6642\uff0c\u5176\u80fd\u91cf\u6703\u9010\u6f38\u64f4\u6563\u958b\u4f86\u3002\u80fd\u91cf\u7684\u64f4\u6563\u4f7f\u5f97\u55ae\u4f4d\u9762\u7a4d\u4e0a\u6240\u5b58\u5728\u7684\u80fd\u91cf\u6e1b\u5c0f\uff0c\u807d\u5230\u7684\u8072\u97f3\u5c31\u8b8a\u5f97\u5fae\u5f31\u3002 (B)\u5438\u6536\u8870\u6e1b\uff1a \u8072\u6ce2\u5728\u4ecb\u8cea\u4e2d\u50b3\u64ad\u6642\uff0c\u7531\u65bc\u4ecb\u8cea\u7684\u7c98\u6eef\u6027\u9020\u6210\u8cea\u9ede\u4e4b\u9593\u7684\u5167\u6469\u64e6\uff0c\u5f9e\u800c\u4f7f\u4e00\u90e8\u5206\u8072\u80fd\u8f49\u8b8a\u70ba\u71b1\u80fd\uff0c\u5c0e\u81f4\u8072\u80fd\u6e1b\u5c0f\uff0c\u807d\u5230\u7684\u8072\u97f3\u5c31\u8b8a\u5f97\u5fae\u5f31\u3002 (C)\u6563\u5c04\u8870\u6e1b\uff1a \u7576\u4ecb\u8cea\u4e2d\u5b58\u5728\u9846\u7c92\u72c0\u7d50\u69cb(\u5982\u6db2\u9ad4\u4e2d\u7684\u61f8\u6d6e\u7c92\u5b50\u3001\u6c23\u6ce1\uff0c\u56fa\u9ad4\u4e2d\u7684\u9846\u7c92\u72c0\u7d50\u69cb\u3001\u7f3a\u9677\u3001\u6519\u96dc\u7269\u7b49)\uff0c\u5c0e\u81f4\u8072\u6ce2\u7684\u8870\u6e1b\u7a31\u6563\u5c04\u8870\u6e1b\u3002 \u6700\u7d42\u8072\u6ce2\u7684\u7e3d\u8870\u6e1b\u91cf=(A)+(B)+(C) \u751a\u9ebc\u662f\u5206\u8c9d (dB) ? \u8072\u97f3\u4e09\u8981\u7d20 \u8072\u97f3\u7684\u7279\u6027\u53ef\u7531\u4e09\u500b\u8981\u7d20\u4f86\u63cf\u8ff0\uff0c\u5373\u97f3\u8272\u3001\u97f3\u8abf\u548c\u97ff\u5ea6\u3002 (1) \u97f3\u8272 (Timbre) \u2192 \u7531\u8072\u97f3\u7684\u6ce2\u578b (Waveform) \u4f86\u6c7a\u5b9a\u3002 \u97f3\u8272\u8207\u8072\u6ce2\u7684\u632f\u52d5\u6ce2\u5f62\u6709\u95dc\uff0c\u6216\u8005\u8aaa\u8207\u8072\u97f3\u7684\u983b\u8b5c\u7d50\u69cb\u6709\u95dc\u3002\u6211\u5011\u4e4b\u6240\u4ee5\u80fd\u5206\u8fa8\u51fa\u9019\u662f\u5c0f\u63d0\u7434\u7684\u8072\u97f3\uff0c\u90a3\u662f\u9577\u7b1b\u7684\u8072\u97f3\uff0c\u5c31\u662f\u56e0\u70ba\u5176\u6ce2\u578b(\u5982\u4e0b\u5716\u6240\u793a)\u4e0d\u540c\u7684\u7de3\u6545 (2) \u97f3\u8abf&hellip;<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":430,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"spay_email":""},"_links":{"self":[{"href":"https:\/\/www.unictron.com\/ultrasonic-transducers\/wp-json\/wp\/v2\/pages\/2881"}],"collection":[{"href":"https:\/\/www.unictron.com\/ultrasonic-transducers\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.unictron.com\/ultrasonic-transducers\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.unictron.com\/ultrasonic-transducers\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.unictron.com\/ultrasonic-transducers\/wp-json\/wp\/v2\/comments?post=2881"}],"version-history":[{"count":7,"href":"https:\/\/www.unictron.com\/ultrasonic-transducers\/wp-json\/wp\/v2\/pages\/2881\/revisions"}],"predecessor-version":[{"id":2923,"href":"https:\/\/www.unictron.com\/ultrasonic-transducers\/wp-json\/wp\/v2\/pages\/2881\/revisions\/2923"}],"up":[{"embeddable":true,"href":"https:\/\/www.unictron.com\/ultrasonic-transducers\/wp-json\/wp\/v2\/pages\/430"}],"wp:attachment":[{"href":"https:\/\/www.unictron.com\/ultrasonic-transducers\/wp-json\/wp\/v2\/media?parent=2881"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}