Photoacoustic pulse generation and probe-beam deflection for ultrasonic velocity measurements in liquids
- 15 February 1982
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 40 (4) , 310-312
- https://doi.org/10.1063/1.93073
Abstract
We have demonstrated a noncontact, fast, and accurate method for ultrasonicmeasurements in liquids. A pulse laser beam produces an acoustic pulse, whose propagation is monitored by its deflection effects on two cw probe beams. All laser beams are parallel to, but displaced from, one another. The acoustic velocity can be measured to an accuracy of 5 parts in 104 in a measurement time of 100 μs. Temperature‐dependentvelocities are measured for ethanol, methanol, water, as well as for concentrated sulfuric acid (which has not been measured previously).Keywords
This publication has 17 references indexed in Scilit:
- Pulsed optoacoustic spectroscopy of condensed matterReviews of Modern Physics, 1981
- An improved interferometer for ultrasonic attenuation or velocity measurementsRevue de Physique Appliquée, 1980
- Brillouin scattering studies of simple liquids: O2, N2, CO, CH4Canadian Journal of Physics, 1979
- Laser-generated stress waves in liquidsThe Journal of the Acoustical Society of America, 1978
- Distortion of short-duration stress pulses propagating in solids and liquidsThe Journal of the Acoustical Society of America, 1975
- Thermoelastic waves generated by laser beams of low powerThe Journal of the Acoustical Society of America, 1975
- Shock Wave Generation in Air and in Water by CO_2 TEA Laser RadiationApplied Optics, 1974
- Sound Speed in Pure Water and Sea WaterThe Journal of the Acoustical Society of America, 1970
- Speed of Sound in Four Primary Alcohols as a Function of Temperature and PressureThe Journal of the Acoustical Society of America, 1964
- Formulas for the Computation of Sound Speed in Sea WaterThe Journal of the Acoustical Society of America, 1960