On transducer and bond corrections for velocity measurements using continuous-wave ultrasound
The perturbing effect of an ultrasonic transducer on determination of sound velocity by continuous-wave methods is reanalyzed. The Bolef–Menes (1+δ) formula is found usually to apply only within a very narrow frequency range around the transducer’s resonant frequencies. Thus it should be regarded as...
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Veröffentlicht in: | The Journal of the Acoustical Society of America 1989-09, Vol.86 (3), p.885-890 |
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description | The perturbing effect of an ultrasonic transducer on determination of sound velocity by continuous-wave methods is reanalyzed. The Bolef–Menes (1+δ) formula is found usually to apply only within a very narrow frequency range around the transducer’s resonant frequencies. Thus it should be regarded as a ‘‘near-transducer’’ rather than a ‘‘thin-transducer’’ correction. Outside the applicable frequency range, it is more appropriate to multiply δ by the square of the ratio of the specimen’s mechanical impedance to that of the transducer. The effect of the bond between specimen and transducer is assessed. |
doi_str_mv | 10.1121/1.398722 |
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The Bolef–Menes (1+δ) formula is found usually to apply only within a very narrow frequency range around the transducer’s resonant frequencies. Thus it should be regarded as a ‘‘near-transducer’’ rather than a ‘‘thin-transducer’’ correction. Outside the applicable frequency range, it is more appropriate to multiply δ by the square of the ratio of the specimen’s mechanical impedance to that of the transducer. 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The Bolef–Menes (1+δ) formula is found usually to apply only within a very narrow frequency range around the transducer’s resonant frequencies. Thus it should be regarded as a ‘‘near-transducer’’ rather than a ‘‘thin-transducer’’ correction. Outside the applicable frequency range, it is more appropriate to multiply δ by the square of the ratio of the specimen’s mechanical impedance to that of the transducer. The effect of the bond between specimen and transducer is assessed.</abstract><cop>Woodbury, NY</cop><pub>Acoustical Society of America</pub><doi>10.1121/1.398722</doi><tpages>6</tpages></addata></record> |
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source | Acoustical Society of America (AIP) |
subjects | Acoustical measurements and instrumentation Acoustics Exact sciences and technology Fundamental areas of phenomenology (including applications) Physics |
title | On transducer and bond corrections for velocity measurements using continuous-wave ultrasound |
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