METHOD FOR EXTENSION OF DIELECTRIC CONSTANT AND LOSS MEASUREMENTS OF LIQUIDS TO 100 MHZ WITH A FIXED-GEOMETRY SAMPLE HOLDER
HARRY DIAMOND LABS ADELPHI MD
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A method for measuring the dielectric properties of liquid specimens on a Q-meter at frequencies up to 100 MHz was developed by 1 assuming an equivalent circuit for a cylindrically shaped liquid-sample holder, 2 determining relevant circuit parameters by experiment, and 3 deriving the necessary equations taking full account of the effects of sample-holder inductance. Measurements made on two liquid samples are detailed and show that good accuracy is obtained when the standard liquid employed is a lossless dielectric with dielectric constant K near the K of the sample under test.
- Test Facilities, Equipment and Methods
- Electricity and Magnetism