Optical temperature sensor using thermochromic semiconductors

Patent · 30 June 1998

OSTI ID:871653

Kronberg, James W ^[1]

---

1. Aiken, SC

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.

• Research Organization: WESTINGHOUSE SAVANNAH RIVER CO
• DOE Contract Number: AC09-89SR18035
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 5772328
• OSTI ID: 871653
• Country of Publication: United States
• Language: English

Related Subjects

/374/252/
accompanying
allows
breakdown
cadmium
cadmium sulfide
card
changes
chip
color
cuprous
detect
detected
device
device utilizes
glass
glass matrix
material
materials
matrix
measuring
measuring device
optical
optical temperature
oxide
provide
response
results
sealed
semiconductor
semiconductor material
semiconductor materials
semiconductors
sensor
sulfide
temperature
temperature measuring
temperature sensor
temperatures
thermochromic
thermochromic material
thermochromic semiconductors
utilizes
utilizes thermochromic
vary
visually