04:09 Jan-06-2000 Martin Schickert R & D, Institute for Materials Research and Testing, Germany, Joined Jan 2000 18
Re: ultrasonics property of water : I want to get note which is ultrasonics property of water.
Bilaniuk, Nykolai; Wong, George S.K.: Speed of Sound in Pure Water as a Function of Temperature J. Acoust. Soc. Am. 93 (1993) 1609-1612
published a 5th order polynomial of the sound velocity of water in the temperature range of 0 to 100°C. The are no remarks as to measuring frequency or dispersion.
The classical text
Landolt, Börnstein: Molekularakustik (Band 5 der Gruppe II) Berlin: Springer 1967 (in German)
shows a similiar polynomial using the older (before 1990) temperature scale.
Selfridge, Alan R.: Approximate Material Properties in Isotropic Materials IEEE Trans. Sonics Ultrason. 32 (1985) 381-394
contains tables on temperature dependent sound attenuation in water. Please note the obviously wrong exponential in the respective formula: 10^-7 should read 10^-17. Actual tables are available on the net at http://www.ultrasonic.com/.
09:11 Sep-12-2001 Ed Ginzel R & D, - Materials Research Institute, Canada, Joined Nov 1998 1191
Re: ultrasonics property of water The Chemical Rubber Co. Handbook of Chemistry and Physics listed the acoustic velocities of water in a table. For distilled water at 25°C it is 1498m/s (density 0.998). For sea water at 25°C (I suppose salinity is related to the temperature) it is 1531m/s and the density of that sea water is 1.025. To establish your actual velocity at the temperature you are working the dV/dT for both distilled and sea water is -2.4m/s/°C