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周波数分析

オンラインでの座学講座です。

内容

 

本講座は、騒音および振動計測に共通する周波数分析の基本を理解していただくことを目的としています。騒音・振動計測で用いられる簡単な周波数分析手法から2チャンネルFFT分析の応用(周波数応答関数)までをわかりやすく解説します。同時に、分析器の利用上の注意点についても紹介します。

 

*実施2週間前に申込人数が4名以下の場合は実施いたしません。

その場合はお申込みいただいた方にご連絡させていただきます。

 

詳細

 

  1. 周波数の基本概念(周波数とは、スペクトル、誤差)
  2. 信号の性質と単位(定常性、RMS/PWR/PSD/ESD)
  3. FFT分析(原理、サンプリング定理、アンチエリアシングフィルタ, 時間窓)
  4. 周波数応答関数(FRF)の測定方法 (機械系FRF、コヒーレンス、ランダム/バイアス誤差)
  5. 計測器を使用して解説(オクターブ分析、FFT分析、窓関数の影響、RMS/PSD/ESD等)

コース内容詳細:

場所 オンライン(Teams)
開始時間 17 Nov 2023 10:00
お申込み期限 3 Nov 2023
期間 終日
種類 Virtual
参加費 20,000円(税別)
PULSE保守ユーザ様は、¥14,000(税別)です。お申し込みの際、コメント欄にHost IDをご記入ください。
講師 ホッティンガー・ブリュエル・ケアー 専任講師
言語 日本語