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Title: Sensor and methods of detecting target materials and situations in closed systems

Abstract

Disclosed is a passive, in-situ pressure sensor. The sensor includes a sensing element having a ferromagnetic metal and a tension inducing mechanism coupled to the ferromagnetic metal. The tension inducing mechanism is operable to change a tensile stress upon the ferromagnetic metal based on a change in pressure in the sensing element. Changes in pressure are detected based on changes in the magnetic switching characteristics of the ferromagnetic metal when subjected to an alternating magnetic field caused by the change in the tensile stress. The sensing element is embeddable in a closed system for detecting pressure changes without the need for any penetrations of the system for power or data acquisition by detecting changes in the magnetic switching characteristics of the ferromagnetic metal caused by the tensile stress.

Inventors:
; ; ; ;
Issue Date:
Research Org.:
Consolidated Nuclear Security, LLC, Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1426760
Patent Number(s):
9,915,575
Application Number:
14/832,482
Assignee:
Consolidated Nuclear Security, LLC (Oak Ridge, TN) Y-12
DOE Contract Number:  
NA0001942
Resource Type:
Patent
Resource Relation:
Patent File Date: 2015 Aug 21
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Mee, David K., Ripley, Edward B., Nienstedt, Zachary C., Nienstedt, Alex W., and Howell, Jr., Layton N. Sensor and methods of detecting target materials and situations in closed systems. United States: N. p., 2018. Web.
Mee, David K., Ripley, Edward B., Nienstedt, Zachary C., Nienstedt, Alex W., & Howell, Jr., Layton N. Sensor and methods of detecting target materials and situations in closed systems. United States.
Mee, David K., Ripley, Edward B., Nienstedt, Zachary C., Nienstedt, Alex W., and Howell, Jr., Layton N. Tue . "Sensor and methods of detecting target materials and situations in closed systems". United States. https://www.osti.gov/servlets/purl/1426760.
@article{osti_1426760,
title = {Sensor and methods of detecting target materials and situations in closed systems},
author = {Mee, David K. and Ripley, Edward B. and Nienstedt, Zachary C. and Nienstedt, Alex W. and Howell, Jr., Layton N.},
abstractNote = {Disclosed is a passive, in-situ pressure sensor. The sensor includes a sensing element having a ferromagnetic metal and a tension inducing mechanism coupled to the ferromagnetic metal. The tension inducing mechanism is operable to change a tensile stress upon the ferromagnetic metal based on a change in pressure in the sensing element. Changes in pressure are detected based on changes in the magnetic switching characteristics of the ferromagnetic metal when subjected to an alternating magnetic field caused by the change in the tensile stress. The sensing element is embeddable in a closed system for detecting pressure changes without the need for any penetrations of the system for power or data acquisition by detecting changes in the magnetic switching characteristics of the ferromagnetic metal caused by the tensile stress.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {3}
}

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