{"id":9307,"date":"2026-02-18T18:09:19","date_gmt":"2026-02-18T18:09:19","guid":{"rendered":"https:\/\/www.zehsm.com\/?p=9307"},"modified":"2026-02-18T18:09:19","modified_gmt":"2026-02-18T18:09:19","slug":"%e9%ab%98%e9%9f%b3%e5%9f%9f%e3%81%ae%e5%91%a8%e6%b3%a2%e6%95%b0%e5%bf%9c%e7%ad%94%e3%82%92%e6%b8%ac%e5%ae%9a%e3%81%99%e3%82%8b%e3%81%9f%e3%82%81%e3%81%ae%e3%83%88%e3%83%83%e3%83%97%e3%82%af%e3%83%a9","status":"publish","type":"post","link":"https:\/\/www.zehsm.com\/ja\/top-testing-equipment-for-measuring-high-audio-frequency-response\/","title":{"rendered":"\u9ad8\u97f3\u57df\u5468\u6ce2\u6570\u5fdc\u7b54\u6e2c\u5b9a\u7528\u306e\u4e3b\u8981\u8a66\u9a13\u6a5f\u5668"},"content":{"rendered":"

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\u3082\u3046\u4e00\u3064\u306e\u91cd\u8981\u306a\u6a5f\u5668\u306f\u3001 \u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u30a2\u30ca\u30e9\u30a4\u30b6\u30fc<\/strong> \u307e\u305f\u306f LCR\u30e1\u30fc\u30bf\u30fc<\/strong>. \u3067\u3059\u3002\u30b9\u30d4\u30fc\u30ab\u30fc\u3084\u30d8\u30c3\u30c9\u30d5\u30a9\u30f3\u30c9\u30e9\u30a4\u30d0\u30fc\u306e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u66f2\u7dda\u306f\u3001\u305d\u306e\u9ad8\u5468\u6ce2\u6319\u52d5\u306b\u3064\u3044\u3066\u6df1\u3044\u60c5\u5831\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002 NI PXIe-4309<\/strong> \u307e\u305f\u306f Hioki IM3590<\/strong> \u306e\u3088\u3046\u306a\u30c4\u30fc\u30eb\u306f\u3001\u30df\u30ea\u30d8\u30eb\u30c4\u304b\u3089\u6570\u30e1\u30ac\u30d8\u30eb\u30c4\u306b\u308f\u305f\u308b\u6383\u5f15\u5468\u6ce2\u6570\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u6e2c\u5b9a\u3092\u5b9f\u884c\u3057\u3001\u30aa\u30fc\u30c7\u30a3\u30aa\u6027\u80fd\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u6a5f\u68b0\u7684\u5171\u632f\u3084\u30a4\u30f3\u30c0\u30af\u30bf\u30f3\u30b9\u5909\u5316\u3092\u660e\u3089\u304b\u306b\u3057\u307e\u3059\u3002\u74b0\u5883\u8a66\u9a13\u3084\u30b9\u30c8\u30ec\u30b9\u30c6\u30b9\u30c8\u306b\u306f\u3001 \u6052\u6e29\u6052\u6e7f\u69fd<\/strong> \u304c\u3001\u6e29\u5ea6\u3068\u6e7f\u5ea6\u3092\u7cbe\u5bc6\u306b\u5236\u5fa1\u3067\u304d\u308b\u3082\u306e\u3068\u3057\u3066\u4e0d\u53ef\u6b20\u3067\u3059\u3002\u30aa\u30fc\u30c7\u30a3\u30aa\u30c7\u30d0\u30a4\u30b9\u306b\u304a\u3051\u308b\u90e8\u54c1\u5024\u3084\u6750\u6599\u7279\u6027\u306f\u74b0\u5883\u6761\u4ef6\u306b\u3088\u3063\u3066\u5909\u5316\u3057\u3001\u9ad8\u5468\u6ce2\u5b89\u5b9a\u6027\u306b\u76f4\u63a5\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u304b\u3089\u3067\u3059\u3002.<\/p>\n

\u6821\u6b63\u3001\u30d7\u30ed\u30fc\u30d6\u3001\u304a\u3088\u3073\u4fe1\u53f7\u7d4c\u8def<\/h2>\n

\u3042\u3089\u3086\u308b\u6e2c\u5b9a\u306e\u7cbe\u5ea6\u306f\u3001\u305d\u306e\u6821\u6b63\u3068\u4fe1\u53f7\u7d4c\u8def\u306e\u5b8c\u5168\u6027\u306b\u4f9d\u5b58\u3057\u307e\u3059\u3002. \u6821\u6b63\u6a19\u6e96\u5668<\/strong>, \u306f\u3001NIST\u306a\u3069\u306e\u56fd\u5bb6\u6a5f\u95a2\u306b\u30c8\u30ec\u30fc\u30b5\u30d6\u30eb\u3067\u3042\u308a\u3001\u30a2\u30ca\u30e9\u30a4\u30b6\u30fc\u306e\u5e74\u6b21\u8a8d\u8a3c\u306b\u5fc5\u8981\u3067\u3059\u3002\u9ad8\u5468\u6ce2\u4f5c\u696d\u306b\u304a\u3044\u3066\u306f\u3001, \u6821\u6b63\u6e08\u307f\u6e2c\u5b9a\u7528\u30de\u30a4\u30af\u30ed\u30d5\u30a9\u30f3<\/strong> \uff08\u4f8b\uff1a GRAS Sound & Vibration<\/strong> \u307e\u305f\u306f Bruel & Kjaer<\/strong>\u306e\u88fd\u54c1\uff09\u3067\u300150 kHz\u307e\u305f\u306f100 kHz\u307e\u3067\u62e1\u5f35\u3055\u308c\u305f\u30d5\u30e9\u30c3\u30c8\u306a\u5fdc\u7b54\u3092\u6301\u3064\u3082\u306e\u304c\u3001\u97f3\u97ff\u6e2c\u5b9a\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3002\u3053\u308c\u3089\u306f ICP\u00ae\uff08\u96c6\u7a4d\u56de\u8def\u5727\u96fb\uff09\u30de\u30a4\u30af\u30ed\u30d5\u30a9\u30f3\u7528\u96fb\u6e90\u304a\u3088\u3073\u30d7\u30ea\u30a2\u30f3\u30d7<\/strong>.<\/p>\n

\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u96fb\u6c17\u7684\u306a\u5074\u9762\u3067\u306f\u3001, \u5dee\u52d5\u30d7\u30ed\u30fc\u30d6\u30a2\u30f3\u30d7<\/strong> \u63a5\u5730\u3055\u308c\u305f\u6a5f\u5668\u306b\u304a\u3044\u3066\u3001\u30b0\u30e9\u30a6\u30f3\u30c9\u30eb\u30fc\u30d7\u3092\u767a\u751f\u3055\u305b\u3066\u30ce\u30a4\u30ba\u3092\u6ce8\u5165\u3059\u308b\u3053\u3068\u306a\u304f\u3001\u30d5\u30ed\u30fc\u30c6\u30a3\u30f3\u30b0\u6e2c\u5b9a\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002\u30d1\u30c3\u30b7\u30d6\u30aa\u30b7\u30ed\u30b9\u30b3\u30fc\u30d7\u30d7\u30ed\u30fc\u30d6\u306f\u3001\u9ad8\u5468\u6ce2\u56de\u8def\u306b\u904e\u5ea6\u306b\u8ca0\u8377\u3092\u304b\u3051\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002; \u30a2\u30af\u30c6\u30a3\u30d6FET\u30d7\u30ed\u30fc\u30d6<\/strong> \u9ad8\u5165\u529b\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u3068200 MHz\u3092\u8d85\u3048\u308b\u5e2f\u57df\u5e45\u3092\u5099\u3048\u305f\u3082\u306e\u306f\u3001\u30c7\u30b8\u30bf\u30eb\u30aa\u30fc\u30c7\u30a3\u30aa\u30e9\u30a4\u30f3\u3084\u30a2\u30f3\u30d7\u51fa\u529b\u3092\u6b6a\u307f\u306a\u304f\u30d7\u30ed\u30fc\u30d6\u3059\u308b\u305f\u3081\u306b\u5fc5\u8981\u3067\u3059\u3002\u3059\u3079\u3066\u306e\u76f8\u4e92\u63a5\u7d9a\u2014\u30b1\u30fc\u30d6\u30eb\u3001\u30b3\u30cd\u30af\u30bf\u3001\u30a2\u30c0\u30d7\u30bf<\/strong>\u2014\u306f\u9ad8\u54c1\u8cea\u3067\u306a\u3051\u308c\u3070\u306a\u3089\u305a\u3001\u5805\u7262\u306a\u30b7\u30fc\u30eb\u30c9\u3092\u5099\u3048\u3001\u9ad8\u5468\u6ce2\u3067\u306e\u53cd\u5c04\u3084\u640d\u5931\u3092\u9632\u3050\u305f\u3081\u306b\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\uff08\u30c7\u30b8\u30bf\u30eb\u3067\u306f\u901a\u5e3850\u03a9\u307e\u305f\u306f75\u03a9\u3001\u30a2\u30ca\u30ed\u30b0\u3067\u306f600\u03a9\uff09\u306b\u5408\u308f\u305b\u3066\u8a2d\u8a08\u3055\u308c\u3066\u3044\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n

\u30c7\u30b8\u30bf\u30eb\u30d5\u30ed\u30f3\u30c6\u30a3\u30a2\uff1a\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3068\u7d71\u5408\u30b7\u30b9\u30c6\u30e0<\/h2>\n

\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u306f\u3001\u5236\u5fa1\u304a\u3088\u3073\u89e3\u6790\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u306a\u3057\u3067\u306f\u7121\u529b\u3067\u3059\u3002\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u6700\u65b0\u30b7\u30b9\u30c6\u30e0\u306f\u3001 Audio Precision\u306eAPx500<\/strong> \u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3001\u307e\u305f\u306f Klippel\u306eKlippel Control Suite<\/strong> \u81ea\u52d5\u30c6\u30b9\u30c8\u30b7\u30fc\u30b1\u30f3\u30b9\u3001\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u30b0\u30e9\u30d5\u8868\u793a\u3001\u304a\u3088\u3073\u8a73\u7d30\u306a\u30c7\u30fc\u30bf\u30ed\u30b0\u6a5f\u80fd\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306b\u3088\u308a\u300110 Hz\u304b\u3089200 kHz\u307e\u3067\u306e\u5358\u4e00\u30b9\u30a4\u30fc\u30d7\u3067THD+N\u5bfe\u5468\u6ce2\u6570\u3092\u30d7\u30ed\u30c3\u30c8\u3059\u308b\u306a\u3069\u3001\u30ab\u30b9\u30bf\u30e0\u6e2c\u5b9a\u306e\u4f5c\u6210\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002\u306e\u53f0\u982d Audio over IP (AoIP)<\/strong> \u306e\u3088\u3046\u306a\u898f\u683c Dante<\/strong> \u305d\u3057\u3066 AES67<\/strong> \u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30d9\u30fc\u30b9\u306e\u89e3\u6790\u30c4\u30fc\u30eb\u306e\u5fc5\u8981\u6027\u3082\u751f\u307f\u51fa\u3057\u3066\u304a\u308a\u3001\u3053\u308c\u3089\u306f\u30d1\u30b1\u30c3\u30c8\u30ec\u30a4\u30c6\u30f3\u30b7\u3001\u30b8\u30c3\u30bf\u30fc\u3001\u30af\u30ed\u30c3\u30af\u540c\u671f\u7cbe\u5ea6\u3092\u6e2c\u5b9a\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u3089\u306f\u3059\u3079\u3066\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3051\u308b\u9ad8\u5468\u6ce2\u30aa\u30fc\u30c7\u30a3\u30aa\u306e\u5b8c\u5168\u6027\u3092\u52a3\u5316\u3055\u305b\u308b\u8981\u56e0\u3067\u3059\u3002.<\/p>\n

\u7814\u7a76\u958b\u767a\u304a\u3088\u3073\u6545\u969c\u89e3\u6790\u306e\u305f\u3081\u306b\u3001, \u9ad8\u901f\u30c7\u30b8\u30bf\u30eb\u30b9\u30c8\u30ec\u30fc\u30b8\u30aa\u30b7\u30ed\u30b9\u30b3\u30fc\u30d7 (DSO)<\/strong> \u6df1\u3044\u30e1\u30e2\u30ea\u3092\u5099\u3048\u305f\u3082\u306e\u3001\u4f8b\u3048\u3070 Teledyne LeCroy HDO8000<\/strong> \u30b7\u30ea\u30fc\u30ba\u306f\u3001\u904e\u6e21\u7684\u306a\u30aa\u30fc\u30c7\u30a3\u30aa\u30a4\u30d9\u30f3\u30c8\u3084\u8907\u96d1\u306a\u30c7\u30b8\u30bf\u30eb\u30d1\u30b1\u30c3\u30c8\u306e\u9577\u304f\u9ad8\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u30ec\u30fc\u30c8\u306e\u6ce2\u5f62\u3092\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\u3053\u3068\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002\u3053\u306e\u30c7\u30fc\u30bf\u306f\u305d\u306e\u5f8c\u3001\u30aa\u30d5\u30e9\u30a4\u30f3\u3067\u51e6\u7406\u3055\u308c\u3001\u7570\u5e38\u306e\u8a73\u7d30\u306a\u8abf\u67fb\u306b\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002\u7d71\u5408\u304c\u9375\u3067\u3059\uff1a\u6700\u3082\u5148\u9032\u7684\u306a\u30e9\u30dc\u306f\u3001 PXIe\u307e\u305f\u306fAXIe\u30e2\u30b8\u30e5\u30e9\u30b7\u30e3\u30fc\u30b7\u30b7\u30b9\u30c6\u30e0<\/strong>, \u3092\u904b\u7528\u3057\u3001\u30b8\u30a7\u30cd\u30ec\u30fc\u30bf\u3001\u30a2\u30ca\u30e9\u30a4\u30b6\u3001\u30aa\u30b7\u30ed\u30b9\u30b3\u30fc\u30d7\u3001\u30b9\u30a4\u30c3\u30c1\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u540c\u671f\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u306b\u7d44\u307f\u5408\u308f\u305b\u3001\u5358\u4e00\u306e\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u74b0\u5883\u3067\u5236\u5fa1\u3059\u308b\u3053\u3068\u3067\u3001\u30b7\u30fc\u30e0\u30ec\u30b9\u306a\u6df7\u5408\u4fe1\u53f7\u30c6\u30b9\u30c8\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002.<\/p>\n

\u6a5f\u5668\u9078\u5b9a\uff1a2024\u5e74\u306e\u5e02\u5834\u6982\u8981<\/h2>\n

\u9069\u5207\u306a\u6a5f\u5668\u3092\u9078\u3076\u306b\u306f\u3001\u4ed5\u69d8\u3001\u4e88\u7b97\u3001\u5c06\u6765\u306e\u30cb\u30fc\u30ba\u306e\u30d0\u30e9\u30f3\u30b9\u3092\u53d6\u308b\u3053\u3068\u304c\u5fc5\u8981\u3067\u3059\u3002\u5e02\u5834\u3067\u306f\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u5b9a\u7fa9\u8a08\u6e2c\u5668\u3084\u4e2d\u53e4\/\u518d\u751f\u54c1\u306e\u30cf\u30a4\u30a8\u30f3\u30c9\u6a5f\u5668\u3078\u306e\u5927\u304d\u306a\u30b7\u30d5\u30c8\u304c\u898b\u3089\u308c\u3001\u30d7\u30ed\u30d5\u30a7\u30c3\u30b7\u30e7\u30ca\u30eb\u306a\u80fd\u529b\u304c\u3088\u308a\u8eab\u8fd1\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u3001\u4ee3\u8868\u7684\u306a\u30e2\u30c7\u30eb\u3068\u4e3b\u8981\u4ed5\u69d8\u3092\u5099\u3048\u305f\u4e2d\u6838\u7684\u306a\u6a5f\u5668\u30ab\u30c6\u30b4\u30ea\u306e\u6bd4\u8f03\u3067\u3059\u3002.<\/p>\n\n\n\n\n\n\n\n\n\n\n
\u6a5f\u5668\u30ab\u30c6\u30b4\u30ea<\/th>\n\u4ee3\u8868\u30e2\u30c7\u30eb<\/th>\n\u4e3b\u8981\u306a\u9ad8\u5468\u6ce2\u4ed5\u69d8<\/th>\n\u53c2\u8003\u4fa1\u683c\u5e2f (USD)<\/th>\n\u4e3b\u306a\u4f7f\u7528\u7528\u9014<\/th>\n<\/tr>\n<\/thead>\n
\u9ad8\u6027\u80fd\u30aa\u30fc\u30c7\u30a3\u30aa\u30a2\u30ca\u30e9\u30a4\u30b6<\/strong><\/td>\nAudio Precision APx555 B\u3001R&S UPV-A<\/td>\n\u767a\u751f\u30fb\u89e3\u6790\u5e2f\u57df\u5e45: DC\uff5e1 MHz\u3001THD+N: < -120 dB (1 kHz)<\/td>\n$30,000\uff5e$60,000+<\/td>\n\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u30b0\u30ec\u30fc\u30c9\u306e\u30a2\u30ca\u30ed\u30b0\uff06\u30c7\u30b8\u30bf\u30eb\u30aa\u30fc\u30c7\u30a3\u30aa\u30c6\u30b9\u30c8<\/td>\n<\/tr>\n
\u30e2\u30b8\u30e5\u30e9\/\u30b7\u30b9\u30c6\u30e0\u30a2\u30ca\u30e9\u30a4\u30b6<\/strong><\/td>\nNational Instruments PXIe-449x\u3001VXIQ<\/td>\nCH\u6570: \u30b9\u30b1\u30fc\u30e9\u30d6\u30eb\u3001\u5e2f\u57df\u5e45: \u6700\u5927500 kHz\/CH<\/td>\n$15,000\uff5e$50,000 (\u30b7\u30b9\u30c6\u30e0)<\/td>\n\u30de\u30eb\u30c1\u30c1\u30e3\u30f3\u30cd\u30eb\u3001\u81ea\u52d5\u5316\u3055\u308c\u305f\u751f\u7523\u30c6\u30b9\u30c8<\/td>\n<\/tr>\n
\u30c0\u30a4\u30ca\u30df\u30c3\u30af\u30b7\u30b0\u30ca\u30eb\u30a2\u30ca\u30e9\u30a4\u30b6 (FFT)<\/strong><\/td>\nKeysight 35670A\u3001Siglent SSA3000X-R<\/td>\n\u5468\u6ce2\u6570\u7bc4\u56f2: DC\uff5e100+ MHz\u3001\u30c0\u30a4\u30ca\u30df\u30c3\u30af\u30ec\u30f3\u30b8: > 90 dB<\/td>\n$8,000\uff5e$25,000<\/td>\n\u8a73\u7d30\u306a\u30b9\u30da\u30af\u30c8\u30eb\u89e3\u6790\u3001\u632f\u52d5\u3001\u30ce\u30a4\u30ba<\/td>\n<\/tr>\n
LCR\/\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u30a2\u30ca\u30e9\u30a4\u30b6<\/strong><\/td>\nHioki IM3590\u3001Wayne Kerr 6500B<\/td>\n\u5468\u6ce2\u6570\u7bc4\u56f2: 0.1 Hz\uff5e5 MHz\u3001\u57fa\u672c\u78ba\u5ea6: 0.05%<\/td>\n$7,000\uff5e$20,000<\/td>\n\u30c9\u30e9\u30a4\u30d0\/\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u89e3\u6790<\/td>\n<\/tr>\n
\u6821\u6b63\u6e08\u307f\u6e2c\u5b9a\u7528\u30de\u30a4\u30af\u30ed\u30db\u30f3.<\/strong><\/td>\nGRAS 46BE 1\/4\u30a4\u30f3\u30c1\u3001B&K 4138<\/td>\n\u5468\u6ce2\u6570\u7bc4\u56f2\uff1a4 Hz\uff5e70 kHz\uff08\u00b12 dB\uff09<\/td>\n$2,000 \u2013 $4,000\uff08\u5404\uff09<\/td>\n\u97f3\u5727\u6e2c\u5b9a\u57fa\u6e96<\/td>\n<\/tr>\n
\u9ad8\u901f\u30aa\u30b7\u30ed\u30b9\u30b3\u30fc\u30d7<\/strong><\/td>\nTeledyne LeCroy HDO8108\u3001Rigol MSO8000<\/td>\n\u5e2f\u57df\u5e45\uff1a1 GHz\u4ee5\u4e0a\u3001\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u30ec\u30fc\u30c8\uff1a5 GSa\/s\u4ee5\u4e0a<\/td>\n$5,000 \u2013 $30,000\u4ee5\u4e0a<\/td>\n\u30c7\u30b8\u30bf\u30eb\u30aa\u30fc\u30c7\u30a3\u30aa\u3001\u30b8\u30c3\u30bf\u30fc\u3001\u904e\u6e21\u89e3\u6790<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u7d50\u8ad6\uff1a\u5c06\u6765\u6027\u3092\u5099\u3048\u305f\u30c6\u30b9\u30c8\u30d9\u30f3\u30c1\u306e\u69cb\u7bc9<\/h2>\n

\u9ad8\u5468\u6ce2\u30aa\u30fc\u30c7\u30a3\u30aa\u8a66\u9a13\u306e\u5206\u91ce\u306f\u3001\u3088\u308a\u5e83\u7bc4\u306aRF\u304a\u3088\u3073\u30c7\u30fc\u30bf\u901a\u4fe1\u8a66\u9a13\u624b\u6cd5\u3068\u878d\u5408\u3057\u3064\u3064\u3042\u308a\u307e\u3059\u3002\u5341\u5206\u306a\u5e2f\u57df\u5e45\u306e\u4f59\u88d5\u3001\u30e2\u30b8\u30e5\u30e9\u30fc\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3001\u5f37\u529b\u306a\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30b5\u30dd\u30fc\u30c8\u3092\u5099\u3048\u305f\u6a5f\u5668\u3078\u306e\u6295\u8cc7\u304c\u6975\u3081\u3066\u91cd\u8981\u3067\u3059\u3002\u65b0\u3057\u3044\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u306e\u30aa\u30fc\u30c7\u30a3\u30aa\u30b3\u30fc\u30c7\u30c3\u30af\u306e\u8a8d\u5b9a\u3001\u30b9\u30bf\u30b8\u30aa\u30de\u30a4\u30af\u306e\u5fe0\u5b9f\u5ea6\u306e\u78ba\u4fdd\u3001\u8d85\u97f3\u6ce2\u6d17\u6d44\u88c5\u7f6e\u306e\u30c7\u30d0\u30c3\u30b0\u306e\u3044\u305a\u308c\u306b\u304a\u3044\u3066\u3082\u3001\u57fa\u672c\u539f\u5247\u306f\u5909\u308f\u308a\u307e\u305b\u3093\u3002\u3059\u306a\u308f\u3061\u3001\u88ab\u8a66\u9a13\u30c7\u30d0\u30a4\u30b9\uff08DUT\uff09\u306e\u8981\u4ef6\u3092\u7406\u89e3\u3057\u3001\u4fe1\u53f7\u7d4c\u8def\u3092\u900f\u904e\u7684\u306b\u4fdd\u3061\u3001\u8a66\u9a13\u9650\u754c\u3092\u4e0a\u56de\u308b\u4ed5\u69d8\u306e\u8a08\u6e2c\u5668\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u4e0a\u8a18\u306e\u30c4\u30fc\u30eb\u3092\u6226\u7565\u7684\u306b\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u30a8\u30f3\u30b8\u30cb\u30a2\u306f\u30aa\u30fc\u30c7\u30a3\u30aa\u54c1\u8cea\u3068\u9769\u65b0\u306e\u9650\u754c\u3092\u62bc\u3057\u5e83\u3052\u308b\u3001\u4fe1\u983c\u6027\u304c\u9ad8\u304f\u518d\u73fe\u6027\u306e\u3042\u308b\u6e2c\u5b9a\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002.<\/p>\n

\n

\u9ad8\u5468\u6ce2\u30aa\u30fc\u30c7\u30a3\u30aa\u6e2c\u5b9a\u306b\u95a2\u3059\u308b\u5c02\u9580\u5bb6Q&A<\/h3>\n

Q1\uff1a\u9ad8\u5468\u6ce2\u6e2c\u5b9a\u306b\u304a\u3044\u3066\u3001\u30aa\u30fc\u30c7\u30a3\u30aa\u30a2\u30ca\u30e9\u30a4\u30b6\u30fc\u306e\u6821\u6b63\u306f\u3069\u306e\u7a0b\u5ea6\u306e\u983b\u5ea6\u3067\u884c\u3046\u3079\u304d\u3067\u3059\u304b\uff1f\u307e\u305f\u3001\u6821\u6b63\u306b\u306f\u4f55\u304c\u542b\u307e\u308c\u307e\u3059\u304b\uff1f<\/strong>
\n\u6821\u6b63\u9593\u9694\u306f\u3001\u30e1\u30fc\u30ab\u30fc\u307e\u305f\u306fISO 17025\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306b\u5f93\u3044\u3001\u91cd\u8981\u306a\u30e9\u30dc\u7528\u6a5f\u5668\u3067\u306f\u901a\u5e38\u5e741\u56de\u3067\u3059\u3002\u9ad8\u5468\u6ce2\u6e2c\u5b9a\u306b\u7279\u5316\u3057\u3066\u3001\u6821\u6b63\u3067\u306f\u3001\u5168\u5468\u6ce2\u6570\u7bc4\u56f2\uff08\u4f8b\uff1a\u6700\u59271 MHz\uff09\u306b\u304a\u3051\u308b\u30b8\u30a7\u30cd\u30ec\u30fc\u30bf\u30fc\u51fa\u529b\u304a\u3088\u3073\u30a2\u30ca\u30e9\u30a4\u30b6\u30fc\u5165\u529b\u306e\u5e73\u5766\u6027\u3068\u7cbe\u5ea6\u3001\u69d8\u3005\u306a\u5468\u6ce2\u6570\u306b\u304a\u3051\u308b\u6b6a\u307f\u30ec\u30d9\u30eb\u3001\u5185\u8535\u30c7\u30b8\u30bf\u30eb\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u7cbe\u5ea6\u304c\u691c\u8a3c\u3055\u308c\u307e\u3059\u3002\u30c8\u30ec\u30fc\u30b5\u30d6\u30eb\u306a\u6a19\u6e96\u5668\u3092\u4f7f\u7528\u3057\u3066\u3001\u6a5f\u5668\u306e\u30c9\u30ea\u30d5\u30c8\u3092\u88dc\u6b63\u3057\u307e\u3059\u3002\u4f7f\u7528\u983b\u5ea6\u304c\u9ad8\u3044\u5834\u5408\u3084\u6e29\u5ea6\u5909\u5316\u306e\u5927\u304d\u3044\u74b0\u5883\u3067\u306f\u3001\u3088\u308a\u983b\u7e41\u306a\uff08\u534a\u5e74\u3054\u3068\u306e\uff09\u6821\u6b63\u304c\u5fc5\u8981\u3068\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n

Q2\uff1a\u9ad8\u5468\u6ce2\uff08\u4f8b\uff1a40 kHz\uff09\u3067\u30a2\u30f3\u30d7\u306eTHD+N\u3092\u6e2c\u5b9a\u3059\u308b\u969b\u3001\u7d50\u679c\u304c\u3088\u308a\u30ce\u30a4\u30ba\u304c\u591a\u304f\u4e0d\u6b63\u78ba\u306b\u898b\u3048\u308b\u306e\u306f\u306a\u305c\u3067\u3059\u304b\uff1f<\/strong>
\n\u3053\u308c\u306f\u4e88\u60f3\u3055\u308c\u308b\u73fe\u8c61\u3067\u3059\u3002\u3059\u3079\u3066\u306e\u80fd\u52d5\u90e8\u54c1\u306f\u3001\u5e2f\u57df\u5e45\u306e\u5897\u52a0\u306b\u4f34\u3044\u30ce\u30a4\u30ba\u304c\u5897\u52a0\u3057\u307e\u3059\uff08\u30ce\u30a4\u30ba\u30d5\u30ed\u30a2\u306e\u4e0a\u6607\uff09\u3002\u3055\u3089\u306b\u3001\u591a\u304f\u306e\u30a2\u30f3\u30d7\u306f\u3001\u30eb\u30fc\u30d7\u30b2\u30a4\u30f3\u306e\u4f4e\u4e0b\u3084\u30b9\u30eb\u30fc\u30ec\u30fc\u30c8\u306e\u5236\u9650\u306b\u3088\u308a\u3001\u5468\u6ce2\u6570\u304c\u9ad8\u304f\u306a\u308b\u306b\u3064\u308c\u3066\u6b6a\u307f\u304c\u5897\u52a0\u3057\u307e\u3059\u3002\u6e2c\u5b9a\u5e2f\u57df\u5e45\u3092\u9069\u5207\u306b\u8a2d\u5b9a\u3057\uff08\u4f8b\uff1a80 kHz\u30ed\u30fc\u30d1\u30b9\u30d5\u30a3\u30eb\u30bf\u30fc\uff09\u3001\u30a2\u30ca\u30e9\u30a4\u30b6\u30fc\u304c\u6355\u6349\u3059\u308b\u5e2f\u57df\u5916\u306e\u8d85\u97f3\u6ce2\u30ce\u30a4\u30ba\u3092\u9664\u5916\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30a2\u30ca\u30e9\u30a4\u30b6\u30fc\u306e\u5e73\u5747\u5316\u6a5f\u80fd\u3092\u4f7f\u7528\u3057\u3066\u30e9\u30f3\u30c0\u30e0\u30ce\u30a4\u30ba\u3092\u4f4e\u6e1b\u3057\u3001\u8ca0\u8377\u304c\u305d\u308c\u3089\u306e\u5468\u6ce2\u6570\u3067\u306e\u96fb\u529b\u3092\u30ea\u30a2\u30af\u30c6\u30a3\u30d6\u306b\u306a\u3089\u305a\u306b\u51e6\u7406\u3067\u304d\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n

Q3\uff1a\u30de\u30a4\u30af\u3092\u4f7f\u7528\u3057\u305f\u97f3\u97ff\u9ad8\u5468\u6ce2\u6e2c\u5b9a\u3067\u6700\u3082\u4e00\u822c\u7684\u306a\u9593\u9055\u3044\u306f\u4f55\u3067\u3059\u304b\uff1f<\/strong>
\n\u4e0d\u9069\u5207\u306a\u30de\u30a4\u30af\u306e\u5411\u304d\u3068\u56de\u6298\u52b9\u679c\u304c\u4e3b\u8981\u306a\u843d\u3068\u3057\u7a74\u3067\u3059\u3002\u6ce2\u9577\u304c\u6570\u30bb\u30f3\u30c1\u30e1\u30fc\u30c8\u30eb\u672a\u6e80\uff08\u5468\u6ce2\u6570\u304c\u7d0410 kHz\u4ee5\u4e0a\uff09\u306e\u5834\u5408\u3001\u30de\u30a4\u30af\u672c\u4f53\u3084\u30b9\u30bf\u30f3\u30c9\u306e\u7269\u7406\u7684\u306a\u5b58\u5728\u304c\u53cd\u5c04\u3084\u56de\u6298\u3092\u5f15\u304d\u8d77\u3053\u3057\u3001\u5468\u6ce2\u6570\u5fdc\u7b54\u3092\u6b6a\u3081\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u5fc5\u305a\u30e1\u30fc\u30ab\u30fc\u63a8\u5968\u306e\u5411\u304d\uff08\u901a\u5e38\u306f0\u00b0\u307e\u305f\u306f90\u00b0\u5165\u5c04\uff09\u306b\u5f93\u3044\u3001\u8584\u304f\u97f3\u97ff\u7684\u306b\u900f\u660e\u306a\u30b9\u30bf\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3055\u3089\u306b\u3001\u30de\u30a4\u30af\u306e\u5ba3\u8a00\u3055\u308c\u305f\u81ea\u7531\u97f3\u5834\u307e\u305f\u306f\u5727\u529b\u97f3\u5834\u6821\u6b63\u304c\u3001\u6e2c\u5b9a\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\uff08\u4f8b\uff1a\u53cd\u5c04\u7a7a\u9593\u3067\u306e\u6e2c\u5b9a\u306b\u306f\u81ea\u7531\u97f3\u5834\uff09\u3068\u4e00\u81f4\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n

Q4\uff1a192 kHz\u3084384 kHz\u306e\u30c7\u30b8\u30bf\u30eb\u30aa\u30fc\u30c7\u30a3\u30aa\u306e\u666e\u53ca\u306b\u4f34\u3044\u3001\u9ad8\u5468\u6ce2\u6027\u80fd\u306b\u3068\u3063\u3066\u91cd\u8981\u306a\u7279\u5b9a\u306e\u30b8\u30c3\u30bf\u30fc\u6e2c\u5b9a\u306f\u4f55\u3067\u3059\u304b\uff1f<\/strong>
\n\u9ad8\u3044\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u30ec\u30fc\u30c8\u3067\u306f\u3001\u30af\u30ed\u30c3\u30af\u30bf\u30a4\u30df\u30f3\u30b0\u30b8\u30c3\u30bf\u30fc\u304c\u77ed\u3044\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u5468\u671f\u306b\u5bfe\u3057\u3066\u3088\u308a\u91cd\u8981\u306b\u306a\u308a\u307e\u3059\u3002\u6e2c\u5b9a\u3059\u3079\u304d\u306f\u3001 \u30a2\u30d1\u30fc\u30c1\u30e3\u30b8\u30c3\u30bf\u30fc<\/strong> \uff08ADC\u306b\u5f71\u97ff\uff09\u304a\u3088\u3073 \u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u30b8\u30c3\u30bf\u30fc<\/strong> \uff08\u4f8b\uff1aI\u00b2S\u307e\u305f\u306fS\/PDIF\u30e9\u30a4\u30f3\u4e0a\uff09\u306e\u4e21\u65b9\u3067\u3059\u3002\u30b8\u30c3\u30bf\u30fc\u306eRMS\u5024\u3060\u3051\u3067\u306a\u304f\u3001\u30b8\u30c3\u30bf\u30fc\u30b9\u30da\u30af\u30c8\u30e9\u30e0\u5206\u6790\u306e\u65b9\u304c\u4fa1\u5024\u304c\u9ad8\u3044\u3067\u3059\u3002\u3053\u308c\u306f\u3001\u9ad8\u5468\u6ce2\u30b8\u30c3\u30bf\u30fc\u6210\u5206\u304c\u76f8\u4e92\u5909\u8abf\u3092\u901a\u3058\u3066\u53ef\u8074\u5e2f\u57df\u306b\u6298\u308a\u8fd4\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u305f\u3081\u3067\u3059\u3002\u5c02\u7528\u306e\u30b8\u30c3\u30bf\u30fc\u6e2c\u5b9a\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3092\u5099\u3048\u305f\u30a2\u30ca\u30e9\u30a4\u30b6\u30fc\u3092\u4f7f\u7528\u3057\u3066\u3001\u30e9\u30f3\u30c0\u30e0\u30b8\u30c3\u30bf\u30fc\u3068\u6c7a\u5b9a\u6027\u30b8\u30c3\u30bf\u30fc\u3092\u5206\u96e2\u3057\u3001\u30aa\u30fc\u30c7\u30a3\u30aa\u4fe1\u53f7\u306b\u5bfe\u3059\u308b\u305d\u306e\u30b9\u30da\u30af\u30c8\u30eb\u6210\u5206\u3092\u6e2c\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>","protected":false},"excerpt":{"rendered":"

Accurate measurement of high audio frequency response is critical across industries\u2014from high-fidelity audio manufacturing and telecommunications to aerospace and medical device testing. As audio technology advances, with formats like high-resolution audio and immersive sound becoming standard, the demand for precise, reliable test equipment has never been greater. This guide explores the essential tools for characterizing performance beyond 20 kHz, delving into the technology, applications, and key selection criteria for building or upgrading a professional test bench. The Fundamentals of High-Frequency Audio Measurement Audio frequency response measurement traditionally focuses on the human hearing range (20 Hz to 20 kHz). However, high-frequency performance\u2014often defined as behavior from 20 kHz to 100 kHz […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-9307","post","type-post","status-publish","format-standard","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/www.zehsm.com\/ja\/wp-json\/wp\/v2\/posts\/9307","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.zehsm.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zehsm.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zehsm.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zehsm.com\/ja\/wp-json\/wp\/v2\/comments?post=9307"}],"version-history":[{"count":1,"href":"https:\/\/www.zehsm.com\/ja\/wp-json\/wp\/v2\/posts\/9307\/revisions"}],"predecessor-version":[{"id":9308,"href":"https:\/\/www.zehsm.com\/ja\/wp-json\/wp\/v2\/posts\/9307\/revisions\/9308"}],"wp:attachment":[{"href":"https:\/\/www.zehsm.com\/ja\/wp-json\/wp\/v2\/media?parent=9307"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zehsm.com\/ja\/wp-json\/wp\/v2\/categories?post=9307"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zehsm.com\/ja\/wp-json\/wp\/v2\/tags?post=9307"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}