Electricity: measuring and testing – Magnetic – Current through test material forms test magnetic field
Patent
1995-06-07
1996-11-05
O'Shea, Sandra L.
Electricity: measuring and testing
Magnetic
Current through test material forms test magnetic field
324228, 324693, G01R 3300
Patent
active
055721230
ABSTRACT:
Inclusions such as encysted parasites and spoilage in food products such as fish fillets are detected by immersing the food products in a bath of an electrolyte, such as a saline solution, having substantially the same electrical conductivity as the uncontaminated food product. An electrical current passed through the electrolyte also passes through the food product. Perturbations in the resulting magnetic field produced by the discontinuities in conductivity at the boundaries of the inclusions or of the spoiled article which have substantially different conductivities from that of the electrolyte and unspoiled food products, provide an indication of the presence of the contamination. Production line inspection rates are achieved by conveying the food products through a container filled with electrolyte and past an array of stationary magnetometers. Perturbations in the magnetic field at the edges of the container are cancelled by directing the current which flows through the electrolyte in a first direction back over the container in the opposite direction through a cancelling conductor, while fields produced by the supply leads are cancelled by using coaxial cable.
REFERENCES:
patent: 3735247 (1973-05-01), Harker
patent: 3855531 (1974-12-01), Fielibert et al.
patent: 4240026 (1980-12-01), Murphy et al.
patent: 5109196 (1992-04-01), Wikswo, Jr. et al.
patent: 5126654 (1992-06-01), Murphy et al.
patent: 5289123 (1994-02-01), Bublitz et al.
New Way of Body Composition Analysis Using Total Body Electrical Conductivity Methods; Wojciech Piasecki, et al. Rev. Sci. Instrum. 66(4), Apr. 1995; pp. 3037-3041.
Cold, Hard and Objective; by Warren Kester; Beef, Dec. 1991; pp. 14-18.
Electrical Properties of Agricultural Products-A Critical Review; by Stuart O. Nelson; Transactions of the ASAE; 1973; pp. 384-400.
Bublitz Christopher G.
Choudhury Gour S.
Jenks William G.
Ma Yu P.
Wikswo, Jr. John P.
O'Shea Sandra L.
Patidar Jay M.
University of Alaska
Vanderbilt University
Westerhoff Richard V.
LandOfFree
Apparatus and method for on-line inspection of electrically cond does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for on-line inspection of electrically cond, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for on-line inspection of electrically cond will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2017132