Testing device using a thermochromic display and method of using

Details Testing device using a thermochromic display and method of using Testing device using a thermochromic display and method of using

1997-02-26

1999-02-09

Ballato, Josie

Electricity: measuring and testing

Electrolyte properties

Using a conductivity determining device

324441, 324450, 250564, 422 56, 422 8202, G01N 3318, G01N 3348

Patent

active

058699724

ABSTRACT:
A testing device for qualitatively or quantitatively sensing an electrochemical or analogous reaction at the surface of a test strip (46), the current flowing or charge accumulated at the test strip being processed by electronics (50) to generate a current signal suitable for activating a display (52) typically in the form of a thermochromic layer.

REFERENCES:
patent: 4882492 (1989-11-01), Schlager
patent: 5174963 (1992-12-01), Fuller et al.
patent: 5179288 (1993-01-01), Miffitt et al.
patent: 5200706 (1993-04-01), Yada
patent: 5597532 (1997-01-01), Connolly

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