JP2007279060A - 熱物性値測定方法 - Google Patents
熱物性値測定方法 Download PDFInfo
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Abstract
【解決手段】測定対象励起用の励起パルス光として超短パルス光を測定対象に照射する一方、プローブパルス光を該測定対象に照射して、その反射光を検知することにより該測定対象の温度変化を観測する。個別に電気的に制御可能の測定対象励起用のパルスレーザーと、プローブ用パルスレーザーの2台を用意し、励起パルス光の測定対象照射時に対するプローブ用パルス光の測定対象照射時刻の差を電気的に制御することにより、励起パルス光とプローブパルス光の時間差に依存して変化する信号を検出する。
【選択図】図1
Description
測定対象物励起用パルス光として周期的に発振されるレーザを測定対象物の第1表面に照射し、
プローブパルス光として前記励起光と等しい周期で発振するレーザを測定対象物の第2表面に照射し、
前記測定対象励起用のパルスレーザーに送る周期の基準信号と前記プローブ用パルスレーザーに送る周期の基準信号の同期を取り、基準信号間の位相差を制御することで励起パルスとプローブパルスの照射する時間差を電気的に制御して、励起パルスレーザとプローブパルスレーザの時間差に依存して変化する信号に対応して測定対象物の第1表面又は第2表面で励起用パルスレーザの繰り返し周期でパルス加熱に対する温度応答が繰り返される温度応答の時間変化をサーモリフレクタンス法により測定する熱物性値測定方法。
Claims (1)
- 励起用パルス光を測定対象物に照射する一方、プローブパルス光を該測定対象物に照射して、励起用パルス光による該測定対象物の熱拡散率、熱抵抗、熱浸透率などの熱物性値を検出する熱物性値測定方法において、
励起用パルス光として周期的に発振されるパルスレーザを測定対象物の第1表面に照射し、
プローブパルス光として前記励起光と等しい周期で発振するパルスレーザを前記測定対象物の第2表面に照射し、
前記励起用のパルスレーザに送る周期の基準信号と前記プローブ用のパルスレーザに送る周期の基準信号の同期を取り、前記基準信号間の位相差を制御することで励起パルスとプローブパルスの照射する時間差を電気的に制御して、励起パルスレーザとプローブパルスレーザの時間差に依存して変化する信号に対応して、測定対象物の第1表面又は第2表面で励起用パルスレーザの繰り返し周期でパルス加熱に対する温度応答が繰り返される温度変化をサーモリフレクタンス法により検出し、繰り返し周期全体の温度履歴曲線から測定する熱物性値測定方法。
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JP2007160229A JP4817328B2 (ja) | 2007-06-18 | 2007-06-18 | 熱物性値測定方法 |
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JP2007160229A JP4817328B2 (ja) | 2007-06-18 | 2007-06-18 | 熱物性値測定方法 |
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JP2002128426A Division JP2003322628A (ja) | 2002-04-30 | 2002-04-30 | 高速パルス高速時間応答測定方法並びに装置 |
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JP2007279060A true JP2007279060A (ja) | 2007-10-25 |
JP4817328B2 JP4817328B2 (ja) | 2011-11-16 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014119274A (ja) * | 2012-12-13 | 2014-06-30 | Osaka Univ | 熱定数の測定方法 |
JP6399329B1 (ja) * | 2017-11-07 | 2018-10-03 | 株式会社ピコサーム | 物性値測定装置、物性値測定方法及びプログラム |
WO2019092898A1 (ja) * | 2017-11-07 | 2019-05-16 | 株式会社ピコサーム | 物性値測定装置、物性値測定方法及びプログラム |
US11867567B2 (en) | 2019-06-20 | 2024-01-09 | Netzsch Japan K.K. | Thermo-physical property measurement instrument and thermo-physical property measurement method |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5258612A (en) * | 1992-04-01 | 1993-11-02 | Clark William G | Timed-resolved spectroscopy with split pump and probe pulses |
JP2000515624A (ja) * | 1996-01-23 | 2000-11-21 | ブラウン ユニバーシティー リサーチ ファウンデーション | 改良された光応力発生器及び検出器 |
JP2003322628A (ja) * | 2002-04-30 | 2003-11-14 | National Institute Of Advanced Industrial & Technology | 高速パルス高速時間応答測定方法並びに装置 |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5258612A (en) * | 1992-04-01 | 1993-11-02 | Clark William G | Timed-resolved spectroscopy with split pump and probe pulses |
JP2000515624A (ja) * | 1996-01-23 | 2000-11-21 | ブラウン ユニバーシティー リサーチ ファウンデーション | 改良された光応力発生器及び検出器 |
JP2003322628A (ja) * | 2002-04-30 | 2003-11-14 | National Institute Of Advanced Industrial & Technology | 高速パルス高速時間応答測定方法並びに装置 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014119274A (ja) * | 2012-12-13 | 2014-06-30 | Osaka Univ | 熱定数の測定方法 |
JP6399329B1 (ja) * | 2017-11-07 | 2018-10-03 | 株式会社ピコサーム | 物性値測定装置、物性値測定方法及びプログラム |
WO2019092898A1 (ja) * | 2017-11-07 | 2019-05-16 | 株式会社ピコサーム | 物性値測定装置、物性値測定方法及びプログラム |
US11175249B2 (en) | 2017-11-07 | 2021-11-16 | Netzsch Japan K.K. | Physical property value measurement device, physical property value measurement method, and recording medium |
US11867567B2 (en) | 2019-06-20 | 2024-01-09 | Netzsch Japan K.K. | Thermo-physical property measurement instrument and thermo-physical property measurement method |
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