Moisture corrected denier measurement

Details Moisture corrected denier measurement Moisture corrected denier measurement

1984-01-06

1986-02-04

Krawczewicz, Stanley T.

Electricity: measuring and testing

Conductor identification or location

Inaccessible

73160, 73159, G01R 2726

Patent

active

045688753

ABSTRACT:
Measurements of yarn denier using capacitance transducers are automatically corrected for moisture. Samples of the yarn to be run are tested at different moisture levels at different frequencies in each of two capacitance transducers. The difference in the apparent denier outputs of the two transducers has been found to be proportional to moisture content. The difference is added to one of the measured values to provide a more correct reading. The difference may be further corrected by a factor derived from the slopes of the curves of transducer output vs. moisture and the slope of the curve of skein denier vs. moisture.

REFERENCES:
patent: 3873927 (1975-03-01), Overall
patent: 3879660 (1975-04-01), Piso
patent: 3882381 (1975-05-01), Gregory
patent: 3990005 (1976-11-01), Abbe
patent: 4208625 (1980-06-01), Piso
Dobkin: "1.2 Volt Reference", National Semi.-App. Note, #AN56, published Dec. 1971.

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