Optical temperature sensor using thermochromic semiconductors

Details Optical temperature sensor using thermochromic semiconductors Optical temperature sensor using thermochromic semiconductors

1996-06-20

1998-06-30

Gutierrez, Diego F.F.

Thermal measuring and testing

Temperature measurement

Nonelectrical, nonmagnetic, or nonmechanical temperature...

2524081, 252962, G01K 1112, G01K 1114, G01K 114

Patent

active

057723281

ABSTRACT:
An optical temperature measuring device utilizes thermochromic semiconductors which vary in color in response to changes in temperature. The thermochromic material is sealed in a glass matrix which allows the temperature sensor to detect high temperatures without breakdown. Cuprous oxide and cadmium sulfide are among the semiconductor materials which provide the best results. The changes in color may be detected visually using a sensor chip and an accompanying color card.

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