ACOUSTIC MODULATION OF THE CONDUCTIVITY OF SALT SOLUTIONS
Abstract
The fractional change of the conductivity of aqueous sodium chloride solutions produced by an acoustic wave were measured and found to be 0.7 x 10 to the -10th power per dyne/sq cm pressure change at room temperature over a concentration range of 0.3 to 3.0 molal. The measurements are consistent with predictions based on theory and static data and with previous measurements of the change in the low-frequency bulk conductivity of salt water produced by an acoustic wave. The measurements were made by reflecting electromagnetic and acoustic waves from the salt water surface in a coaxial test cell at a radio frequency of 146 mc and acoustic frequencies in the range of 15 to 30 kc. The equipment used is capable of measuring an amplitude modulation index lower than 160 db below 100% for 1 cps of bandwidth.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 28, 1961
- Accession Number
- AD0260534
Entities
People
- D. F. Eagle Jr.
- D. J. Bryant
- J. R. Walsh Jr.
- W. K. Rivers Jr.
Organizations
- Georgia Tech