Dear all,
I'd like to supply a sound velocity measurement setup for the synthesized glass samples in our lab. For this, is there anyone who can help me to find out a supplier? Also, any example setups in your labs will be highly appreciated.
Thanks in advance for your time-consuming.
You yourself can make the set up in your laboratory provided that you procure one Pulse/Receiver set up, PZT Transducer of prepared frequency and a digital oscilloscope.
Kindly refer the following manuscript and proceed:
Radiation dose measurements in irradiated PMMA using ultrasonic technique
P.Palanichamy and E.Radhaba
Non-destructive Evaluation Division, Indira Gandhi Centre for Atomic Research, Kalpakkam 603 102,
Radiation Measurements
Volume 43, Issue 7, August 2008, Pages 1319-1323
I agree that any set of reciprocal piezo-transducers can be used. Alternatively you can use a small instrumented hammer to create the pulse, an only use one piezo-sensor as receiver at the other end of the glass sample (you don't need any more a pulse generator and power amplifier).
Your sample must be a rod with one dimension much larger tan the others in order to clearly differentiate the sound wave from the shear and flexural ones. Because the compressional waves are the fastest in a solid, you just need to capture the precise travelling time of the first arrival of the wave you generated either from the same transducer (the return pulse after reflecting at the other end of the rod) or a second transducer at the sample extremity (the direct path). For an accurate measurement, you need to look for the peak of the correlation function of your E/R signals, not just the first instant of energy arrival which is more difficult to determine precisely... But it remains a simple measurement if you are not looking for upmost precision.
Dear Bernard Garnier and Palanichamy Perumal
I appreciate your detailed responses. I will try your alternatives.
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