Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1985-04-15
1987-10-27
Miller, Stanley D.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
324104, G02F 1133, G01R 19165
Patent
active
047025638
ABSTRACT:
A device for testing a battery, particularly a small, portable battery, comprising a flexible, transparent substrate on which is deposited a narrow band of a black light absorbing material. A conductive material, which tapers outwardly in opposite directions from a central point to a pair of outer terminals, is then deposited atop the substrate on the same side of the substrate as the absorber layer. A layer of a cholesteric liquid crystal material is then deposited on the substrate on the opposite side from the black absorber layer. The conductive material is an epoxy cement-based conductor, preferably silver, printed or painted directly on to the substrate. An indicator scale is located along sections of the tapered conductive material. To test a dry cell battery, the terminal ends of the conductive material are placed in contact with the battery terminals, causing a current to flow which heats the conductive material, the heat generated being the most intense at the central point and radiating outwardly. The heat is transferred through the thin substrate to the liquid crystal layer which results in a color change in the liquid crystal. The traverse of the color change along the length of the indicator scale, outwardly from the center point, is proportional to the current or voltage output or the condition of the battery to be tested and can be read on the indicator scale which is calibrated accordingly.
REFERENCES:
patent: 2522660 (1950-09-01), Bledsoe
patent: 3454873 (1969-07-01), Abrahams
patent: 3524726 (1970-08-01), Koster
patent: 3600060 (1971-08-01), Churchill et al.
patent: 3675988 (1972-07-01), Soref
patent: 3700306 (1972-10-01), Cartmell et al.
patent: 3898354 (1975-08-01), Parker
patent: 4006414 (1977-02-01), Parker
patent: 4022706 (1977-05-01), Davis
patent: 4050786 (1977-09-01), Feldman
patent: 4101696 (1978-07-01), Jennen et al.
patent: 4235654 (1980-11-01), Dohi et al.
patent: 4360780 (1982-11-01), Skutch
patent: 4457589 (1984-07-01), Tamura et al.
patent: 4516836 (1985-05-01), Ferrato
Wargin et al, "A Large Flexible, Liquid Crystal Display Cell", IEEE Conference Record of 1972, Conference on Display Devices, N.Y., USA 11-12, Oct. 1972.
Lewis David
Miller Stanley D.
Rajender Shyamala T.
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