Electricity: measuring and testing – Electrolyte properties – Using a conductivity determining device
Patent
1995-12-27
1997-10-21
Karlsen, Ernest F.
Electricity: measuring and testing
Electrolyte properties
Using a conductivity determining device
324439, G01N 2702
Patent
active
056800517
ABSTRACT:
An electromagnetic induction-type probe, for measuring the electrical properties of a solution, exhibits both a reduced size and a wide band property. The probe includes a primary transformer, composed of a toroidal core with a primary coil winding, a secondary transformer composed of a toroidal core with a secondary, coil winding, an electrostatic shield and coaxial cables which connect the probe and the main frame of a measuring instrument. The structure of the probe is symmetrical in order to eliminate measurement errors due to the asymmetry of the electrical field produced in the solution. The symmetry of the electrical field in the solution is maintained up to the high-frequency region and a wide-band effectiveness is realized by connecting the center tap terminal of a balancer to the outer conductors of the coaxial cables and the other terminals of the balancer to both ends of the gap of the electrostatic shield. Since the balancer can be contained in the handle of the probe, the size of the probe is reduced.
REFERENCES:
patent: 3030573 (1962-04-01), Yamashita et al.
patent: 3292077 (1966-12-01), Sloughter
patent: 3867688 (1975-02-01), Koski
patent: 4220920 (1980-09-01), Gross
patent: 5157332 (1992-10-01), Reese
patent: 5252925 (1993-10-01), Matsumoto et al.
patent: 5268642 (1993-12-01), Uchidomi
patent: 5341102 (1994-08-01), Akiyama et al.
Resmar et al., "A Miniture Conductivity Meter", Australian Journal of Instrumentation and Control, vol. 31, No. 1, pp. 5-8, Feb. 1975.
Do Diep
Hewlett--Packard Company
Karlsen Ernest F.
LandOfFree
Electromagnetic induction-type probe does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electromagnetic induction-type probe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electromagnetic induction-type probe will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1009681