Optical temperature sensor using thermochromic semiconductors

Patent · Tue Jun 30 00:00:00 EDT 1998

OSTI ID:672602

Kronberg, J W

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. 8 figs.

• Research Organization: Savannah River Site (SRS), Aiken, SC (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC09-89SR18035
• Assignee: Dept. of Energy, Washington, DC (United States)
• Patent Number(s): US 5,772,328/A/
• Application Number: PAN: 8-667,058
• OSTI ID: 672602
• Resource Relation: Other Information: PBD: 30 Jun 1998
• Country of Publication: United States
• Language: English

Related Subjects

44 INSTRUMENTATION
INCLUDING NUCLEAR AND PARTICLE DETECTORS
TEMPERATURE MEASUREMENT
SEMICONDUCTOR MATERIALS
TEMPERATURE DEPENDENCE
COLOR
COPPER OXIDES
CADMIUM SULFIDES
MEASURING INSTRUMENTS