Shape memory alloy thaw sensors

Patent · 07 April 1998

OSTI ID:612124

Shahinpoor, M; Martinez, D R

A sensor permanently indicates that it has been exposed to temperatures exceeding a critical temperature for a predetermined time period. An element of the sensor made from shape memory alloy changes shape when exposed, even temporarily, to temperatures above the austenitic temperature of the shape memory alloy. The shape change of the SMA element causes the sensor to change between two readily distinguishable states. 16 figs.

• Research Organization: Sandia Corporation
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC04-94AL85000
• Assignee: Sandia Corp., Albuquerque, NM (United States)
• Patent Number(s): US 5,735,607/A/
• Application Number: PAN: 8-567,683
• OSTI ID: 612124
• Country of Publication: United States
• Language: English

Related Subjects

44 INSTRUMENTATION
INCLUDING NUCLEAR AND PARTICLE DETECTORS
ALLOYS
CRITICAL TEMPERATURE
DESIGN
MEASURING INSTRUMENTS
MEASURING METHODS
SHAPE MEMORY EFFECT
TEMPERATURE MONITORING
THAWING