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Title: Pressure sensor

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.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1221974
Patent Number(s):
9146168
Application Number:
13/835,700
Assignee:
Consolidated Nuclear Security, LLC (Reston, VA)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01L - MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
DOE Contract Number:  
AC05-00OR22800
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Mar 15
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.. Pressure sensor. United States: N. p., 2015. Web.
Mee, David K., Ripley, Edward B., Nienstedt, Zachary C., Nienstedt, Alex W., & Howell, Jr., Layton N.. Pressure sensor. United States.
Mee, David K., Ripley, Edward B., Nienstedt, Zachary C., Nienstedt, Alex W., and Howell, Jr., Layton N.. Tue . "Pressure sensor". United States. https://www.osti.gov/servlets/purl/1221974.
@article{osti_1221974,
title = {Pressure sensor},
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 = {2015},
month = {9}
}

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