System and method for measuring meat tenderness

Details System and method for measuring meat tenderness System and method for measuring meat tenderness

1971-10-22

1976-05-18

Gill, James J.

Measuring and testing

Hardness

By penetrator or indentor

G01N 342

Patent

active

039569241

ABSTRACT:
A system for measuring the tenderness of meat includes a probe equipped with a force transducer which generates an electrical signal having an instantaneous amplitude representative of the penetration resistance force encountered by the probe during insertion to a predetermined depth. The transducer is connected in a bridge circuit which is energized by a storage battery coupled to the bridge through a regulating network to insure a constant supply voltage for the resistive transducer. An amplifier receives the force signal and couples it to a memory circuit which includes a capacitor fed by a unidirectional current-carrying circuit. The capacitor stores a charge proportional to incremental increases in the transducer signal; and since it does not discharge except by operator reset, the charge stored after the probe comes to rest is representative of the peak penetration resistance force and, thus, a measure of the tenderness of the meat. A readout circuit generates a visual indication of the voltage across the memory capacitor which may then be discharged by selective action of the operator to set the system for a new measurement.

REFERENCES:
patent: 2775887 (1957-01-01), Hines
patent: 3169394 (1965-02-01), Vosteen et al.
patent: 3197697 (1965-07-01), McCauley
patent: 3245252 (1966-04-01), First et al.
patent: 3289134 (1966-11-01), Laimins et al.
patent: 3335381 (1967-08-01), Di Giovanni
patent: 3389432 (1968-06-01), Griesheimer et al.
patent: 3447362 (1969-06-01), Pien
patent: 3450978 (1969-06-01), Norman
patent: 3456226 (1969-07-01), Vick
patent: 3593572 (1971-07-01), Hansen
patent: 3602038 (1971-08-01), Hansen

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