Devices for rapid temperature detection

Details Devices for rapid temperature detection Devices for rapid temperature detection

1996-01-16

1997-11-11

Bennett, G. Bradley

Thermal measuring and testing

Temperature measurement

Nonelectrical, nonmagnetic, or nonmechanical temperature...

374106, 116217, G01K 1112

Patent

active

056856415

ABSTRACT:
Temperature probes are provided comprising a porous or permeable substrate into which is absorbed at least at the surface a diyne monomer. The absorption is achieved by employing a solution of the diyne monomer in a solvent which is transported by the solid substrate. After impregnation of the substrate, the diyne is polymerized to provide a blue product, which upon being heated above a transition temperature turns to red. Various substrates and devices may be employed for a variety of situations requiring a determination of the occurrence of a particular minimum temperature.

REFERENCES:
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patent: 3362834 (1968-01-01), Kaye
patent: 3724360 (1973-04-01), Kliewer et al.
patent: 3975288 (1976-08-01), Davis
patent: 4238352 (1980-12-01), Patel
patent: 4339951 (1982-07-01), Yee et al.
patent: 4721769 (1988-01-01), Rubner
patent: 5085801 (1992-02-01), Thierry et al.

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