[{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","@id":"https:\/\/wiki.edu.vn\/all2jp\/wiki10\/archives\/307#BlogPosting","mainEntityOfPage":"https:\/\/wiki.edu.vn\/all2jp\/wiki10\/archives\/307","headline":"\u30c8\u30fc\u30bf\u30eb\u30cf\u30fc\u30e2\u30cb\u30c3\u30af\u6b6a\u307f – \u30a6\u30a3\u30ad\u30da\u30c7\u30a3\u30a2","name":"\u30c8\u30fc\u30bf\u30eb\u30cf\u30fc\u30e2\u30cb\u30c3\u30af\u6b6a\u307f – \u30a6\u30a3\u30ad\u30da\u30c7\u30a3\u30a2","description":"before-content-x4 \u8868\u73fe \u82f1\u8a9e \u7dcf\u9ad8\u8abf\u6ce2\u6b6a\u307f \u3001\u7701\u7565 thd \uff08\u30c9\u30a4\u30c4\u4eba \u7dcf\u632f\u52d5\u3072\u305a\u307f \u3001 \u7dcf\u4e0a\u90e8\u632f\u52d5\u542b\u6709\u91cf \uff09\u4fe1\u53f7\u5206\u6790\u306e\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u3067\u306f\u3001\u4fe1\u53f7\u306e\u975e\u7dda\u5f62\u6b6a\u307f\u306b\u3088\u3063\u3066\u5f15\u304d\u8d77\u3053\u3055\u308c\u308b\u30b7\u30a7\u30a2\u306e\u30b5\u30a4\u30ba\u3092\u5b9a\u91cf\u5316\u3059\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u632f\u5e45\u95a2\u4fc2\u306e\u5f62\u3067\u96fb\u5727\u306e\u6642\u9593\u306a\u3069\u306e\u30d1\u30ef\u30fc\u30b5\u30a4\u30ba\u306e\u6bd4\u7387\u307e\u305f\u306f\u30d5\u30a3\u30fc\u30eb\u30c9\u30b5\u30a4\u30ba\u306b\u95a2\u9023\u3059\u308b\u3055\u307e\u3056\u307e\u306a\u898f\u5b9a\u304c\u3042\u308a\u307e\u3059\u3002 after-content-x4 thd \u5408\u8a08\u3055\u308c\u305f\u30b5\u30fc\u30d3\u30b9\u306e\u6bd4\u7387\u3068\u3057\u3066\u5b9a\u7fa9\u3055\u308c\u307e\u3059 p h \u57fa\u672c\u632f\u52d5\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u305f\u3081\u306e\u3059\u3079\u3066\u306e\u4e0a\u90e8\u632f\u52d5 p \u521d\u3081 \u3002\u305f\u3068\u3048\u3070\u300150","datePublished":"2020-03-05","dateModified":"2020-03-05","author":{"@type":"Person","@id":"https:\/\/wiki.edu.vn\/all2jp\/wiki10\/archives\/author\/lordneo#Person","name":"lordneo","url":"https:\/\/wiki.edu.vn\/all2jp\/wiki10\/archives\/author\/lordneo","image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/44a4cee54c4c053e967fe3e7d054edd4?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/44a4cee54c4c053e967fe3e7d054edd4?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"Enzyklop\u00e4die","logo":{"@type":"ImageObject","@id":"https:\/\/wiki.edu.vn\/wiki4\/wp-content\/uploads\/2023\/08\/download.jpg","url":"https:\/\/wiki.edu.vn\/wiki4\/wp-content\/uploads\/2023\/08\/download.jpg","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/wikimedia.org\/api\/rest_v1\/media\/math\/render\/svg\/c3318ff334dd9f2d71c7e37ffaafca20537b9bf7","url":"https:\/\/wikimedia.org\/api\/rest_v1\/media\/math\/render\/svg\/c3318ff334dd9f2d71c7e37ffaafca20537b9bf7","height":"","width":""},"url":"https:\/\/wiki.edu.vn\/all2jp\/wiki10\/archives\/307","wordCount":3534,"articleBody":"     (adsbygoogle = window.adsbygoogle || []).push({});before-content-x4\u8868\u73fe \u82f1\u8a9e  \u7dcf\u9ad8\u8abf\u6ce2\u6b6a\u307f \u3001\u7701\u7565 thd \uff08\u30c9\u30a4\u30c4\u4eba \u7dcf\u632f\u52d5\u3072\u305a\u307f \u3001 \u7dcf\u4e0a\u90e8\u632f\u52d5\u542b\u6709\u91cf \uff09\u4fe1\u53f7\u5206\u6790\u306e\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u3067\u306f\u3001\u4fe1\u53f7\u306e\u975e\u7dda\u5f62\u6b6a\u307f\u306b\u3088\u3063\u3066\u5f15\u304d\u8d77\u3053\u3055\u308c\u308b\u30b7\u30a7\u30a2\u306e\u30b5\u30a4\u30ba\u3092\u5b9a\u91cf\u5316\u3059\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u632f\u5e45\u95a2\u4fc2\u306e\u5f62\u3067\u96fb\u5727\u306e\u6642\u9593\u306a\u3069\u306e\u30d1\u30ef\u30fc\u30b5\u30a4\u30ba\u306e\u6bd4\u7387\u307e\u305f\u306f\u30d5\u30a3\u30fc\u30eb\u30c9\u30b5\u30a4\u30ba\u306b\u95a2\u9023\u3059\u308b\u3055\u307e\u3056\u307e\u306a\u898f\u5b9a\u304c\u3042\u308a\u307e\u3059\u3002        (adsbygoogle = window.adsbygoogle || []).push({});after-content-x4 thd \u5408\u8a08\u3055\u308c\u305f\u30b5\u30fc\u30d3\u30b9\u306e\u6bd4\u7387\u3068\u3057\u3066\u5b9a\u7fa9\u3055\u308c\u307e\u3059 p h \u57fa\u672c\u632f\u52d5\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u305f\u3081\u306e\u3059\u3079\u3066\u306e\u4e0a\u90e8\u632f\u52d5 p \u521d\u3081 \u3002\u305f\u3068\u3048\u3070\u300150 kHz\u306e\u9577\u65b9\u5f62\u4fe1\u53f7\u306b\u306f\u300150 kHz\u306e\u6d1e\u5f62\u306e\u5869\u57fa\u6027\u632f\u52d5\u3068\u3001\u57fa\u672c\u5468\u6ce2\u6570\u306e3\u30015\u30017\u30019\u56de\u306a\u3069\u306e\u4e0a\u90e8\u632f\u52d5\u304c\u542b\u307e\u308c\u3066\u304a\u308a\u3001\u30d5\u30fc\u30ea\u30a8\u5206\u6790\u306e\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u306b\u793a\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 \u60c5\u5831\u306f\u30012\u3064\u306e\u30b5\u30fc\u30d3\u30b9\u9593\u306e\u95a2\u4fc2\u306e\uff05\u3067\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002        (adsbygoogle = window.adsbygoogle || []).push({});after-content-x4THD%= PhP1de 100 {displaystyle mathrm {thd} _ {\uff05} = {frac {p_ {mathrm {h}}} {p_ {1}}} cdot 100} \u307e\u305f\u306fDB\u306e\u30b5\u30fc\u30d3\u30b9\u306e\u6bd4\u7387\u3068\u3057\u3066\u3001\u3064\u307e\u308a THDdB= \u5341 de log10\u2061 (PhP1){displaystyle mathrm {thd} _ {mathrm {db}} = 10cdot log _ {10} left\uff08{frac {mathrm {h}}} {p_ {1}}}\u53f3\uff09}} \u7dca\u5f35\u3001\u96fb\u6d41\u306a\u3069\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u30b5\u30a4\u30ba\u306f\u3001\u30ab\u30d0\u30fc\u30b9\u30af\u30a8\u30a2\u306b\u5165\u308a\u307e\u3059\u3002\u96fb\u5727\u4fe1\u53f7\u306e\u5834\u5408\u3001\u6709\u52b9\u306a\u5024\u96fb\u5727\u306e\u6bd4\u306f\u30a8\u30cd\u30eb\u30ae\u30fc\u6bd4\u306b\u76f8\u5f53\u3057\u307e\u3059\u3002        (adsbygoogle = window.adsbygoogle || []).push({});after-content-x4THD= U22+U32+U42+\u22ef+Un2U12{displaystyle mathrm {thd} = {frac {{{{}}} {} {} {}+{u_ {3}} {} {}+{u_ {{} {} {} {}+cdots+{u_ {{n}}}}}}}}}}} }}}\u3001} \u3053\u306e\u8a08\u7b97\u3067\u306f\u610f\u5473\u304c\u3042\u308a\u307e\u3059 \u306e n \u6709\u52b9\u306a\u5024\u96fb\u5727 \u306e Eff \u8abf\u548c\u306e\u3068\u308c\u305f n \u3002 \u306e\u4ed5\u69d8 thd+n \u3001\u3053\u3053\u3067\u306fn nose\uff08 \u82f1\u8a9e  \u30ce\u30a4\u30ba \uff09\u30b9\u30bf\u30f3\u30c9\u3002 \u5e72\u6e09\u306e\u5408\u8a08\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059 p \u4e71\u3059 =\u8abf\u548c\u306e\u3068\u308c\u305f\u7834\u58ca\u7684\u306a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9 p h \u3055\u3089\u306b\u3001\u30ce\u30a4\u30ba\u306e\u6df7\u4e71 p \u30e9\u30a6\u30b7\u30e5 \u5168\u4f53\u7684\u306a\u4fe1\u53f7\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3067 p \u4e0e\u3048\u3089\u308c\u305f \u6bd4\u8f03\u3055\u308c\u307e\u3059\u3002 Pratio= Psto\u00a8rPges= Ph+PrauschPges{DisplayStyle P_ {Mathrm {ratio}} = {fract {p_ {mathrm {st {mathrm}}}}}}}}}}}}} = {Math {math {math r {RAUSCH}}}}}}} {p_ {Mathrm {ges}}}}} \u3053\u3053\u3067\u3082\u3001\u60c5\u5831\u306f\uff05\u307e\u305f\u306fdb\u3067\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 THD+N%= Psto\u00a8rPgesde 100 {displasyStle mathrm {thd+n} _ {\uff05} = {frac {p_ {mathrm {st {dot}} r}}}} {p_ {mathrm {ges}}}} cdot 100} \u307e\u305f THD+NdB= \u5341 de log10\u2061 (Psto\u00a8rPges){displaystyle mathrm {thd+n} _ {mathrm {db}} = 10cdot log _ {10} left\uff08{frac {p_ {st {o}}}}}}} {p_ {mathrm {ges}}}}}} \u3042\u308b\u3044\u306f\u3001\u30b5\u30a6\u30f3\u30c9\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u306e\u3068\u308a\u308f\u3051\u3001\u632f\u5e45\u95a2\u4fc2\u306f\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u95a2\u4fc2\u306e\u4ee3\u308f\u308a\u306b\u95a2\u4fc2\u3057\u3066\u8a2d\u5b9a\u3055\u308c\u3001THD\u3068\u547c\u3070\u308c\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u4e0a\u8a18\u306e\u6c7a\u5b9a\u304b\u3089\u9038\u8131\u3059\u308b\u6b21\u306e\u5b9a\u7fa9\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002 [\u521d\u3081] THD%audio= U22+U32+U42+\u22ef+Un2U1 de 100 \u3001 {displaystyle mathrm {THD} _{mathrm {%audio} }={frac {sqrt {{U_{2}}^{2}+{U_{3}}^{2}+{U_{4}}^{2}+cdots +{U_{n}}^{2}}}{U_{1}}} cdot 100,} THD\u306f\u3001\u96fb\u6c17\u30a8\u30cd\u30eb\u30ae\u30fc\u4f9b\u7d66\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u3068\u3063\u3066\u3082\u91cd\u8981\u3067\u3059\u3002\u534a\u5c0e\u4f53\u69cb\u9020\u8981\u7d20\uff08\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u96fb\u6e90\u3001\u30a4\u30f3\u30d0\u30fc\u30bf\u30fc\u3001\u4f4d\u76f8\u30ab\u30c3\u30c8\u5236\u5fa1\u3092\u5099\u3048\u305f\u8abf\u5149\u5668\u306a\u3069\uff09\u3092\u6301\u3064\u6d88\u8cbb\u8005\u306a\u3069\u306e\u975e\u7dda\u5f62\u7279\u6027\u3092\u6301\u3064\u96fb\u6c17\u30c7\u30d0\u30a4\u30b9\u306f\u3001\u534a\u5c0e\u4f53\u306e\u8fc5\u901f\u306a\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u30d7\u30ed\u30bb\u30b9\u306e\u305f\u3081\u306b\u30a8\u30cd\u30eb\u30ae\u30fc\u4f9b\u7d66\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304b\u3089\u6d1e\u578b\u96fb\u6d41\u3092\u53d6\u5f97\u3057\u307e\u305b\u3093\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30e1\u30a4\u30f3\u96fb\u5727\u306e\u5f71\u97ff\u304c\u767a\u751f\u3057\u3001\u8ffd\u52a0\u306e\u8abf\u548c\u306e\u3068\u308c\u305f\u30b7\u30a7\u30a2\u304c\u523b\u5370\u3055\u308c\u3066\u304a\u308a\u3001THD\u304c\u5897\u52a0\u3057\u307e\u3059\u3002\u3053\u306e\u4e0a\u90e8\u632f\u52d5\u542b\u6709\u91cf\u304c\u5927\u304d\u304f\u306a\u308a\u3059\u304e\u308b\u3068\u3001\u4ed6\u306e\u6d88\u8cbb\u8005\u3067\u969c\u5bb3\u304c\u767a\u751f\u3057\u3001\u4e00\u822c\u7684\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u640d\u5931\u304c\u767a\u751f\u3057\u3001\u30d6\u30e9\u30a4\u30f3\u30c9\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u8981\u4ef6\u304c\u5897\u52a0\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u4e3b\u96fb\u6e90\u96fb\u5727\u306e\u4f4e\u3044THD\u306f\u3001\u512a\u308c\u305f\u96fb\u5727\u54c1\u8cea\u306e\u7279\u5fb4\u3067\u3059\u3002\u30e8\u30fc\u30ed\u30c3\u30d1\u3067\u306f\u3001\u89b3\u5bdf\u3055\u308c\u308b\u4e92\u63db\u6027\u30ec\u30d9\u30eb\u306f\u3001\u6a19\u6e96EN 61000-2\u307e\u305f\u306fEN 50160\u3067\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u307e\u3059\u3002 IEEE Standard 1459\u20132010\u306b\u3088\u308b\u3068 [2] \u96fb\u5727\u306eTHD\u306f\u6b21\u306e\u3088\u3046\u306b\u5b9a\u7fa9\u3057\u307e\u3059 THDU= U2\u2212U12U1{displaystyle mathrm {thd} _ {mathrm {u}} = {frac {sqrt {u}^{2}  –  {u_ {1} {}}}}} {{{1}}}\u3001}\u3001}\u3001}} \u3068 \u306e \u96fb\u5727\u306e\u6709\u52b9\u5024\u3068 \u306e \u521d\u3081 \u57fa\u672c\u7684\u306a\u632f\u52d5\u306e\u52b9\u679c\u7684\u306a\u5024\u3002 \u540c\u3058\u3053\u3068\u304c\u96fb\u6c17\u306b\u3082\u5f53\u3066\u306f\u307e\u308a\u307e\u3059\uff1a THDi= I2\u2212I12I1{displaystyle mathrm {thd} _ {mathrm {i}} = {frac {sqrt {{i}^{2}  –  {i_ {1}}^{2}}}} {i_ {1}}}}}}}}}}}}}}}}}}}}}}}}}}}} \u3002 \u6b6a\u307f\u4fc2\u6570\u306f\u3001\u632f\u5e45\u95a2\u4fc2\u3068\u3057\u3066\u540c\u69d8\u306b\u6c7a\u5b9a\u3055\u308c\u307e\u3059\u304c\u3001\u4fe1\u53f7\u5168\u4f53\u306e\u6709\u52b9\u306a\u5024\u3092\u4f7f\u7528\u3057\u3001\u57fa\u672c\u632f\u52d5\u306e\u6709\u52b9\u306a\u5024\u3060\u3051\u3067\u306a\u304f\u3001\u53c2\u7167\u3068\u3057\u3066\u4f7f\u7528\u3057\u307e\u3059\u3002\u7dca\u5f35\u3067 \u306e \u7d20\u6674\u3089\u3057\u3044\u8981\u56e0\u3067\u3059 k \u5b9a\u7fa9\u3055\u308c\u3066\u3044\u307e\u3059\uff1a k = THDR= U2\u2212U12U= THDU1+THDU2{displaysylaylyle k = mathrm {mathrm {r} = {frac {sqrt {u}  – }  – }  – }  – }  – }  –  {mathrm {mathrm {thdrm {{{sqrt {1 + mathrm {mathrm {} {} {} {} {} {} {} {} {{} {} {{} {} {{} {{} {} \u82f1\u8a9e\u3092\u8a71\u3059\u5c02\u9580\u6587\u5b66\u3067\u306f\u3001\u6b6a\u307f\u4fc2\u6570\u306fTHD\u3068\u3057\u3066\u533a\u5225\u3055\u308c\u307e\u3059 r \u3001 \u305f\u3081\u306b \u82f1\u8a9e  thd\u30eb\u30fc\u30c8\u5e73\u5747\u56db\u89d2 \u3001 \u5c02\u7528\u3002 [3] \u30e6\u30eb\u30b2\u30f3\u30fb\u30b7\u30e5\u30e9\u30d6\u30d0\u30c3\u30cf\uff1a \u96fb\u6c17\u30a8\u30cd\u30eb\u30ae\u30fc\u4f9b\u7d66 \u3002 VDD-Publising\u30011995\u3001ISBN 3-8007-1999-1\u3002  DIN EN 61000-2-4 \/ VDE 0839\u30d1\u30fc\u30c82-4\uff1a\u96fb\u78c1\u8010\u6027\uff08EMC\uff09 \u3002 2005\u5e745\u6708\u3002  DIN EN 61000-4-7 \/ VDE 0847-4-7\uff1a\u96fb\u6e90\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u63a5\u7d9a\u3055\u308c\u305f\u30c7\u30d0\u30a4\u30b9\u306e\u4e0a\u90e8\u632f\u52d5\u3068\u4e2d\u9593\u9ad8\u8abf\u6ce2\u3092\u6e2c\u5b9a\u3059\u308b\u305f\u3081\u306e\u624b\u9806\u3068\u30c7\u30d0\u30a4\u30b9\u306e\u30c6\u30b9\u30c8\u3068\u6e2c\u5b9a\u65b9\u6cd5\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3 \u3002 VDE Publishing House\u30012009\u5e7412\u6708\u3002  \u30a6\u30a9\u30eb\u30c8\u30b1\u30b9\u30bf\u30fc\uff1a sinad\u3001enob\u3001snr\u3001thd\u3001thd + n\u3001sfdr\u3092\u7406\u89e3\u3059\u308b\u306e\u3067\u3001\u9a12\u97f3\u5e8a\u3067\u8ff7\u5b50\u306b\u306a\u3089\u306a\u3044\u3067\u304f\u3060\u3055\u3044 \u3002\u30a2\u30ca\u30ed\u30b0\u30c7\u30d0\u30a4\u30b9\u3001\u4f1a\u793e\u30b9\u30af\u30ea\u30d7\u30c8\u30012005\uff08 analog.com [PDF; 93  KB ] MT-003\uff09\u3002  \u2191  G.\u30e9\u30f3\u30c7\u30a3\u30b9\u30ed\u30fc\u30f3\uff1a Audiophile\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u30bd\u30fc\u30b9\u30d6\u30c3\u30af \u3002 McGraw-Hill\u30012001\u3001ISBN 0-07-137929-0\u3001 S.  \u5341 \u3002   \u2191  IEEE\uff1a sinusoidal\u3001nonsinusoidal\u3001\u30d0\u30e9\u30f3\u30b9\u3001\u307e\u305f\u306f\u4e0d\u5747\u8861\u306a\u6761\u4ef6\u4e0b\u3067\u306e\u96fb\u529b\u91cf\u306e\u6e2c\u5b9a\u306e\u305f\u3081\u306eIEEE\u6a19\u6e96\u5b9a\u7fa9 \u3002 2010\u5e74\u3002   \u2191  Doron Shmilovitz\uff1a \u7dcf\u9ad8\u8abf\u6ce2\u6b6a\u307f\u306e\u5b9a\u7fa9\u3068\u6e2c\u5b9a\u89e3\u91c8\u3078\u306e\u5f71\u97ff\u306b\u3064\u3044\u3066 \u3002 \u30d0\u30f3\u30c9  20 \u3001 \u3044\u3044\u3048\u3002  \u521d\u3081 \u3002\u96fb\u529b\u4f9b\u7d66\u306b\u95a2\u3059\u308bIEEE\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u30011\u3002Januar2005\u3001doi\uff1a 10.1109\/TPWRD.2004.839744 \uff08 eng.tau.ac.il [PDF]\uff09\u3002         (adsbygoogle = window.adsbygoogle || []).push({});after-content-x4"},{"@context":"http:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"https:\/\/wiki.edu.vn\/all2jp\/wiki10\/#breadcrumbitem","name":"Enzyklop\u00e4die"}},{"@type":"ListItem","position":2,"item":{"@id":"https:\/\/wiki.edu.vn\/all2jp\/wiki10\/archives\/307#breadcrumbitem","name":"\u30c8\u30fc\u30bf\u30eb\u30cf\u30fc\u30e2\u30cb\u30c3\u30af\u6b6a\u307f – \u30a6\u30a3\u30ad\u30da\u30c7\u30a3\u30a2"}}]}]