Title :
Speed of sound in sulfuric acid solution: Application to density measurement
Author :
Vray, D. ; Berchouz, D. ; Delachartre, P. ; Gimenez, G.
Author_Institution :
Lab, ´´Traitement du Signal & Ultrasons,´´ Villeurbanne, France
Abstract :
The possibility of deducing the density of a sulfuric acid solution from the measurement of the speed of an ultrasonic wave transmitted into the liquid is investigated. It is found that in the 1.10-1.30 density range and 10°C-50°C temperature range, evaluation of the density is possible by the simultaneous measurement of the ultrasound speed and the temperature. These results have led to the realization of an integrated system for the measurement of the density of an electrolytical solution (sulfuric acid) of electrochemical generators in order to know their state of charge
Keywords :
battery testers; density measurement; density of liquids; hydrogen compounds; secondary cells; ultrasonic velocity; 10 to 50 C; DENSONIC prototype; H2SO4 solution; Pb acid battery; US senior design; US velocity; batteries; density measurement; electrochemical generators; electrolytical solution; integrated system; specific gravity; state of charge; sulfuric acid solution; Battery charge measurement; Charge measurement; Current measurement; Density measurement; Gravity; Temperature distribution; Time measurement; Transmitters; Ultrasonic variables measurement; Velocity measurement;
Conference_Titel :
Ultrasonics Symposium, 1992. Proceedings., IEEE 1992
Conference_Location :
Tucson, AZ
Print_ISBN :
0-7803-0562-0
DOI :
10.1109/ULTSYM.1992.275835
