The Dynamic Performance of Flexural Ultrasonic Transducers
Flexural ultrasonic transducers are principally used as proximity sensors and for industrial metrology. Their operation relies on a piezoelectric ceramic to generate a flexing of a metallic membrane, which delivers the ultrasound signal. The performance of flexural ultrasonic transducers has been la...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-01-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1424-8220/18/1/270 |
| _version_ | 1798041610264510464 |
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| author | Andrew Feeney Lei Kang George Rowlands Steve Dixon |
| author_facet | Andrew Feeney Lei Kang George Rowlands Steve Dixon |
| author_sort | Andrew Feeney |
| collection | DOAJ |
| description | Flexural ultrasonic transducers are principally used as proximity sensors and for industrial metrology. Their operation relies on a piezoelectric ceramic to generate a flexing of a metallic membrane, which delivers the ultrasound signal. The performance of flexural ultrasonic transducers has been largely limited to excitation through a short voltage burst signal at a designated mechanical resonance frequency. However, a steady-state amplitude response is not generated instantaneously in a flexural ultrasonic transducer from a drive excitation signal, and differences in the drive characteristics between transmitting and receiving transducers can affect the measured response. This research investigates the dynamic performance of flexural ultrasonic transducers using acoustic microphone measurements and laser Doppler vibrometry, supported by a detailed mechanical analog model, in a process which has not before been applied to the flexural ultrasonic transducer. These techniques are employed to gain insights into the physics of their vibration behaviour, vital for the optimisation of industrial ultrasound systems. |
| first_indexed | 2024-04-11T22:24:16Z |
| format | Article |
| id | doaj.art-93e4cc7accc64373942d01fe68ad54ed |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T22:24:16Z |
| publishDate | 2018-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-93e4cc7accc64373942d01fe68ad54ed2022-12-22T03:59:53ZengMDPI AGSensors1424-82202018-01-0118127010.3390/s18010270s18010270The Dynamic Performance of Flexural Ultrasonic TransducersAndrew Feeney0Lei Kang1George Rowlands2Steve Dixon3Department of Physics, University of Warwick, Coventry CV4 7AL, UKDepartment of Physics, University of Warwick, Coventry CV4 7AL, UKDepartment of Physics, University of Warwick, Coventry CV4 7AL, UKDepartment of Physics, University of Warwick, Coventry CV4 7AL, UKFlexural ultrasonic transducers are principally used as proximity sensors and for industrial metrology. Their operation relies on a piezoelectric ceramic to generate a flexing of a metallic membrane, which delivers the ultrasound signal. The performance of flexural ultrasonic transducers has been largely limited to excitation through a short voltage burst signal at a designated mechanical resonance frequency. However, a steady-state amplitude response is not generated instantaneously in a flexural ultrasonic transducer from a drive excitation signal, and differences in the drive characteristics between transmitting and receiving transducers can affect the measured response. This research investigates the dynamic performance of flexural ultrasonic transducers using acoustic microphone measurements and laser Doppler vibrometry, supported by a detailed mechanical analog model, in a process which has not before been applied to the flexural ultrasonic transducer. These techniques are employed to gain insights into the physics of their vibration behaviour, vital for the optimisation of industrial ultrasound systems.http://www.mdpi.com/1424-8220/18/1/270flexural ultrasonic transducerair-coupled ultrasounddynamic characterisation |
| spellingShingle | Andrew Feeney Lei Kang George Rowlands Steve Dixon The Dynamic Performance of Flexural Ultrasonic Transducers Sensors flexural ultrasonic transducer air-coupled ultrasound dynamic characterisation |
| title | The Dynamic Performance of Flexural Ultrasonic Transducers |
| title_full | The Dynamic Performance of Flexural Ultrasonic Transducers |
| title_fullStr | The Dynamic Performance of Flexural Ultrasonic Transducers |
| title_full_unstemmed | The Dynamic Performance of Flexural Ultrasonic Transducers |
| title_short | The Dynamic Performance of Flexural Ultrasonic Transducers |
| title_sort | dynamic performance of flexural ultrasonic transducers |
| topic | flexural ultrasonic transducer air-coupled ultrasound dynamic characterisation |
| url | http://www.mdpi.com/1424-8220/18/1/270 |
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