Solid state apparatus employing hall effect sensors for detectin

Details Solid state apparatus employing hall effect sensors for detectin Solid state apparatus employing hall effect sensors for detectin

1998-02-23

2000-10-24

Speer, Timothy M.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing liquid or solid sample

436 69, 73 6441, G01N 3349

Patent

active

061362719

ABSTRACT:
There is disclosed a system for detecting and timing the coagulation of blood from a liquid to a clot. The system comprises a vessel containing blood, a member of ferromagnetic material disposed within the vessel, means for providing relative motion between the vessel and the member, and a plurality of Hall effect sensors coupled through the walls of the vessel for sensing the strength of the magnetic flux lines and varying the electrical conductance upon change in the magnetic flux lines when the blood transforms itself and the member changes position relative to the plurality of sensors.

REFERENCES:
patent: 3492096 (1970-01-01), Hattersley
patent: 3520659 (1970-07-01), Steinberg et al.
patent: 3695842 (1972-10-01), Mintz
patent: 3836333 (1974-09-01), Mintz
patent: 5154082 (1992-10-01), Mintz
patent: 5289255 (1994-02-01), Mullin et al.

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