Apparatus for measuring rates of urine flow electrically

Details Apparatus for measuring rates of urine flow electrically Apparatus for measuring rates of urine flow electrically

1976-01-05

1977-09-27

Krawczewicz, Stanley T.

Electricity: measuring and testing

Conductor identification or location

Inaccessible

73304C, 73194E, 73215, G01R 2726

Patent

active

040514315

ABSTRACT:
This invention relates to apparatus for measuring the rate of flow F(t) of urine electrically using a measuring vessel whose filled volume V at any particular time is measured as a function V(t) of time t, so that the rate of flow F(t) = dV/dt of the urine can be obtained by differentiating the time function.
In such apparatus, there is provided at least one electrical capacitor which is acted on by the amount of urine in the vessel and whose capacitance C(t) is influenced by the time-dependent amount of urine present, the urine acting both as an electrical conductor and as a di-electric, and the capacitance being used as an indication of the filled volume function which is to be differentiated electrically.

REFERENCES:
patent: 3375716 (1968-04-01), Hersch
patent: 3508234 (1970-04-01), Snyder
patent: 3580072 (1971-05-01), Cox et al.
patent: 3729994 (1973-05-01), Klug
patent: 3757210 (1973-09-01), Hansen et al.
patent: 3930411 (1976-01-01), Beeker et al.

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