On calibration of piezoelectric sensors with laser doppler vibrometer
We present a method for calibrating piezoelectric sensors using a laser Doppler vibrometer. Our method uses an average of Fourier transform terms of the recorded signal from the piezoelectric sensor, which is compared with the laser probe measurement in the overlapping frequency range. We use our me...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
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Acoustical Society of America (ASA)
2023
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| Online Access: | https://hdl.handle.net/1721.1/148148 |
| _version_ | 1826211698744229888 |
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| author | Ghaffari, HO Mok, U Pec, Matej |
| author2 | Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences |
| author_facet | Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences Ghaffari, HO Mok, U Pec, Matej |
| author_sort | Ghaffari, HO |
| collection | MIT |
| description | We present a method for calibrating piezoelectric sensors using a laser Doppler vibrometer. Our method uses an average of Fourier transform terms of the recorded signal from the piezoelectric sensor, which is compared with the laser probe measurement in the overlapping frequency range. We use our method to calibrate the response of miniature needle sensors employed in acoustic emission testing to several different excitation sources of stress waves in the frequency range of 20-300 kHz. We demonstrate that the output of the piezoelectric sensors can be accurately scaled with particle velocity. |
| first_indexed | 2024-09-23T15:10:06Z |
| format | Article |
| id | mit-1721.1/148148 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T15:10:06Z |
| publishDate | 2023 |
| publisher | Acoustical Society of America (ASA) |
| record_format | dspace |
| spelling | mit-1721.1/1481482023-02-23T03:08:45Z On calibration of piezoelectric sensors with laser doppler vibrometer Ghaffari, HO Mok, U Pec, Matej Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences We present a method for calibrating piezoelectric sensors using a laser Doppler vibrometer. Our method uses an average of Fourier transform terms of the recorded signal from the piezoelectric sensor, which is compared with the laser probe measurement in the overlapping frequency range. We use our method to calibrate the response of miniature needle sensors employed in acoustic emission testing to several different excitation sources of stress waves in the frequency range of 20-300 kHz. We demonstrate that the output of the piezoelectric sensors can be accurately scaled with particle velocity. 2023-02-22T17:27:20Z 2023-02-22T17:27:20Z 2021 2023-02-22T17:23:07Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/148148 Ghaffari, HO, Mok, U and Pec, Matej. 2021. "On calibration of piezoelectric sensors with laser doppler vibrometer." The Journal of the Acoustical Society of America, 150 (4). en 10.1121/10.0006445 The Journal of the Acoustical Society of America Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf Acoustical Society of America (ASA) Acoustical Society of America |
| spellingShingle | Ghaffari, HO Mok, U Pec, Matej On calibration of piezoelectric sensors with laser doppler vibrometer |
| title | On calibration of piezoelectric sensors with laser doppler vibrometer |
| title_full | On calibration of piezoelectric sensors with laser doppler vibrometer |
| title_fullStr | On calibration of piezoelectric sensors with laser doppler vibrometer |
| title_full_unstemmed | On calibration of piezoelectric sensors with laser doppler vibrometer |
| title_short | On calibration of piezoelectric sensors with laser doppler vibrometer |
| title_sort | on calibration of piezoelectric sensors with laser doppler vibrometer |
| url | https://hdl.handle.net/1721.1/148148 |
| work_keys_str_mv | AT ghaffariho oncalibrationofpiezoelectricsensorswithlaserdopplervibrometer AT moku oncalibrationofpiezoelectricsensorswithlaserdopplervibrometer AT pecmatej oncalibrationofpiezoelectricsensorswithlaserdopplervibrometer |