Electricity: measuring and testing – Conductor identification or location – Inaccessible
Patent
1986-01-02
1988-07-19
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Conductor identification or location
Inaccessible
209571, 209701, 324 711, 324149, G01R 2702
Patent
active
047587784
ABSTRACT:
By a method of and an apparatus for determining the degree of freshness of fish or other pieces of meat a pair of electrodes of an electrode assembly are brought into contact with the pieces of food, and the degree of freshness is determined electrically by determining the phase angle of the impedance which the tissue of the piece of food in question represents by inducing an alternating current into the tissue of the piece of food and by determining the delay of the voltage produced by the current in relation to the current. The pieces of food are successively moved along a first path of movement across a supporting surface, in which a first electrode assembly is mounted for measuring the degree of freshness of the pieces of food at the first side, whereafter the pieces of food are successively turned upside down and moved along a weighing unit and further along a second path of movement across a supporting surface, in which a second electrode assembly is mounted for measuring the degree of freshness of the other side of the piece of food. On the basis of the measurement of the degree of freshness and the weight of the piece of food in question, the pieces of food are sorted by means of sorting means, which bring the pieces of food to respective containers. The sorting apparatus for carrying out the method comprises a first and a second supporting surface along which two measuring assemblies are mounted, a weighing unit, means for turning the pieces of food upside down and sorting means for sorting the pieces of food into respective containers on the basis of the results determined by means of the electrode assemblies and by means of the weighing unit.
REFERENCES:
patent: 2937739 (1960-05-01), Levy
patent: 3320946 (1967-05-01), Dethloff et al.
patent: 3665302 (1972-05-01), Lees et al.
patent: 4082188 (1978-04-01), Grimmell et al.
patent: 4214663 (1980-07-01), Schopp et al.
patent: 4320841 (1982-03-01), Gordon et al.
European Search Report-EP 85 116669.
Eisenzopf Reinhard J.
Mueller Robert W.
Rafagnataekni (Electronics)
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