Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1977-02-16
1979-05-22
Tokar, M.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
324DIG1, 119 1414, G01N 2742
Patent
active
041561791
ABSTRACT:
An electrical conductivity indicator has a bridge circuit which is supplied from a source of electronic oscillations preferably successive half cycles being of reverse polarity and having electrodes in a cup arranged to be hand held below the teat of a cow so that the presence or absense of Mastitis infection is indicated by the variations in electrical conductivity of the milk held in the cup.
REFERENCES:
patent: 2898549 (1959-08-01), Miller
patent: 3003103 (1961-10-01), Smals et al.
patent: 3664306 (1972-05-01), Quayle
patent: 4020414 (1977-04-01), Paredes
Millar Thomas D.
Stephen Stuart J.
AHI Operations Limited
Tokar M.
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