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Dubey, S. U.
- Programmable Ultrasonic Flaw Detection Using Pulser Receiver Card
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Authors
Affiliations
1 Department of Electronics, R.T.M. Nagpur University, Nagpur-440033, IN
2 Department of Electronics, S.K. Porwal College, Kamptee, Nagpur-441002, IN
3 Department of Electronics, Sindhu Mahavidyalaya, Nagpur-440017, IN
1 Department of Electronics, R.T.M. Nagpur University, Nagpur-440033, IN
2 Department of Electronics, S.K. Porwal College, Kamptee, Nagpur-441002, IN
3 Department of Electronics, Sindhu Mahavidyalaya, Nagpur-440017, IN
Source
Journal of Pure and Applied Ultrasonics, Vol 31, No 4 (2009), Pagination: 150-152Abstract
Pulse echo technique is widely used in ultrasonics to characterize the material under study, as it requires a single transducer for transmitter and receiver. In the present work, we have developed software to use pulser receiver card, DUSC880 from KEIYU NDT CO. TAIWAN in flaw locator. The card generates narrow train of pulses that are fed to the piezoelectric transducer which generates ultrasonic pulses that propagate through the material under test. Echoes from the back wall and the flaw (if any) are detected by the same transducer. The control panel for data acquisition, process and display is developed in VC++. Designed software displays flaw along with its position (depth) from the surface with the resolution of ±0.2 mm. The measurements are calibrated using standard calibration block. The software is successfully tested to detect position of the flaw in the various materials under test thereby enlarging the domain of application of pulser receiver card.Keywords
Pulser/Receiver Card, Pulse-Echo Technique, GUI, Flaw Detection.Full Text
- Design of Ultrasonic Resonant Air-Borne Tracking System
Abstract Views :192 |
PDF Views:0
Authors
Affiliations
1 Dr. Annasaheb G. D. Bendale Mahila Mahavidyalaya, Jalgaon-425 001, IN
2 Department of Electronics, R.T.M. Nagpur University, Nagpur-440 033, IN
1 Dr. Annasaheb G. D. Bendale Mahila Mahavidyalaya, Jalgaon-425 001, IN
2 Department of Electronics, R.T.M. Nagpur University, Nagpur-440 033, IN
Source
Journal of Pure and Applied Ultrasonics, Vol 40, No 3 (2018), Pagination: 88-90Abstract
Impedance spectroscopy is the study of measurement of impedance and phase with respect to frequency of electrical components or material under study. In the present work, an electrical impedance analysis of air-borne ultrasonic transducers is carried out with the help of a dedicated impedance analyzer, AD5933, manufactured by analog devices. It is a sweep type of resonant frequency tracking instrument that helps to detect the exact resonant frequency for ST 40 and SR 40 transmitter and receiver air borne transducers, respective. It is observed that impedance analyser, AD5933 is effective in the resonant tracking of air borne ultrasonic transducer.Keywords
Electrical Impedance, DDS, DFT, Resonance, Impedance Calibration.Full Text
References
- Arnold F.J., Gonçalves M.S., Roger L.L.B. and Mühlen S.S., Electrical impedance of piezoelectric ceramics under acoustic loads, 12 (2014) 48-54.
- Brennan, S., Measuring loudspeaker impedance profile using the AD5933, Application Note AN-843, Analog Devices, (2007) 1-12. http://www.analog.com/media/en/ technical-documentation/application-notes/ 236037846AN_843.pdf
- 1 MSPS 12-bit impedance converter, network analyzer, Analog Devices, (2011) 1-44. http://d1.amobbs.com/ bbs_upload782111/files_25/ourdev_530698.pdf 4 Bogatin E., Signal, Power Integrity-Simplified 2nd Edition, Prentice Hall, Michigan, (2009) 92-97.
- Lee W. and Sung C., Sweep type resonant frequency tracking for dual ultrasonic transducers under water, Int. J. Elect. Electron. Data Comm., 5 (2017) 23-25.
- Lis, W. and Schmidt J., Measuring the impedance of Ultrasonic transducers, Hydroacoust, 7 (2004) 143-148.
- Kuang, Y., Jin Y., Cochran S. and Huang Z., Resonance tracking and vibration stabilization for high power ultrasonic transducers, Ultrasonics, 54 (2014) 187-194.
- Zhang H., Wang F., Zhang D., Wang L., Hou Y. and Xi T., A new automatic resonance frequency tracking method for piezoelectric ultrasonic transducers used in thermosonic wire bonding, 235 (2015) 140-150.