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2005, 37

Y. B. Gandole, S. P. Yawale, S. S. Yawale

Simplified instrumentation for ultrasonic measurements

language: English

received 18.10.2005, published 04.12.2005

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ABSTRACT

Simplified instrumentation for ultrasonic measurements to generate and detect ultrasonic pulses in liquids and solids is described. High frequency pulse generator is assembled using integrated circuits (74LS00, 74LS90, 74LS93, 4093, 74121 and 7407), which generates variable frequencies (0.625, 1, 1.25, 2.5, 5 and 10 MHz), having pulse width 2 microseconds to 60 microseconds. The wideband receiver is developed using radio frequency amplifier (IC CA3028), zero-cross detector (LM393), and buffer amplifier (AD 826). The gain and bandwidth of the receiver are 50 dB and 15 MHz respectively. Transit time measurement has been taken on personal computer using analog to digital converter card. The system is found suitable, accurate and versatile for ultrasonic velocity and attenuation measurements.

8 pages, 7 figures

Сitation: Y. B. Gandole, S. P. Yawale, S. S. Yawale. Simplified instrumentation for ultrasonic measurements. Electronic Journal “Technical Acoustics”, http://www.ejta.org, 2005, 37.

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Yogendra Babarao Gandole received M.Sc. Applied Electronics degree from Amravati University, Amravati in 1987, Advance Diploma in Computer Software, System Analysis and Application from Bombay technical Board, Bombay in 1992, M.Sc. Subject communication (Electronics) from Yashawantrao Chavan Maharashtra Open University, Nashik in 2000. He is working as a lecturer in Adarsha science, J.B.Arts and Birla Commerce, Mahavidyalaya, Dhamangaon Rly since 1988. Presently he is working at Government Vidarbha Institute of Science and Humanities, Amravati, under Faculty Improvement Scheme (FIP) of University Grants Commission, New Delhi (India) for two years.

e-mail: ygandole(at)indiatimes.com

 
 

Shrikrishna Pandurangji Yawale Shrikrishna Pandurangji Yawale received M.Sc. Physics degree from Amravati University, Amravati in 1986, M.Phil. in 1989 and Ph.D. in 1992 from the same University. He worked as a lecturer in the Government Vidarbha Institute of Science and Humanities, Amravati, since 1986 and now working as a reader and head of department of Electronics. Since 1986, he has been actively engaged in the research. In the mean time he had worked at Institute of Science, Nagpur. The current interests of research are solid state physics and materials science. The fields are glasses, amorphous materials, thin film polymers, solid state gas and humidity sensors, microwaves, ultrasonic instrumentation and dielectrics. Under his guidance five students have been awarded by Ph.D. degree from Amravati University, Amravati. Till now 56 research papers are published in national and international journals. He is life member of Indian Institute of Ceramics. Kolkata (India).

E-mail: spyawale(at)rediffmail.com

 
 

Sangita Shrikrishna Yawale received M.Sc. degree in Physics in 1986, M.Phil in 1989 and Ph.D. in solid state Physics in 1992 from Amravati University, Amravati. She received M.Sc. Subject Communication (Physics) in 2005 from Yashawantrao Chavan Maharashtra Open University, Nashik. Since 1986 she is engaged in the research field of solid state Physics. She joined the Department of Physics, Government Vidarbha Institute of Science and Humanities, Amravati, in 1986 as a lecturer and now working as reader. Her research fields are glasses, dielectrics, ultrasonic, polymers etc. Under her guidance two students have been awarded Ph.D. degree. She has published 56 research papers in international journals and conferences.

E-mail: ssyawale(at)rediffmail.com