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Title: Sensor devices comprising field-structured composites

Abstract

A new class of sensor devices comprising field-structured conducting composites comprising a textured distribution of conducting magnetic particles is disclosed. The conducting properties of such field-structured materials can be precisely controlled during fabrication so as to exhibit a large change in electrical conductivity when subject to any environmental influence which changes the relative volume fraction. Influences which can be so detected include stress, strain, shear, temperature change, humidity, magnetic field, electromagnetic radiation, and the presence or absence of certain chemicals. This behavior can be made the basis for a wide variety of sensor devices.

Inventors:
 [1];  [2];  [2]
  1. (Tijeras, NM)
  2. (Albuquerque, NM)
Publication Date:
Research Org.:
SANDIA CORP
OSTI Identifier:
873580
Patent Number(s):
US 6194769
Application Number:
09/323,172
Assignee:
Sandia Corporation (Albuquerque, NM) SNL
DOE Contract Number:  
AC04-94DP85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
sensor; devices; comprising; field-structured; composites; conducting; textured; distribution; magnetic; particles; disclosed; properties; materials; precisely; controlled; fabrication; exhibit; change; electrical; conductivity; subject; environmental; influence; changes; relative; volume; fraction; influences; detected; stress; strain; shear; temperature; humidity; field; electromagnetic; radiation; presence; absence; chemicals; behavior; basis; wide; variety; volume fraction; sensor devices; temperature change; magnetic particles; electromagnetic radiation; magnetic field; electrical conductivity; wide variety; relative volume; devices comprising; composites comprising; precisely controlled; sensor device; comprising field-structured; precisely control; magnetic particle; /257/

Citation Formats

Martin, James E., Hughes, Robert C., and Anderson, Robert A. Sensor devices comprising field-structured composites. United States: N. p., 2001. Web.
Martin, James E., Hughes, Robert C., & Anderson, Robert A. Sensor devices comprising field-structured composites. United States.
Martin, James E., Hughes, Robert C., and Anderson, Robert A. Tue . "Sensor devices comprising field-structured composites". United States. https://www.osti.gov/servlets/purl/873580.
@article{osti_873580,
title = {Sensor devices comprising field-structured composites},
author = {Martin, James E. and Hughes, Robert C. and Anderson, Robert A.},
abstractNote = {A new class of sensor devices comprising field-structured conducting composites comprising a textured distribution of conducting magnetic particles is disclosed. The conducting properties of such field-structured materials can be precisely controlled during fabrication so as to exhibit a large change in electrical conductivity when subject to any environmental influence which changes the relative volume fraction. Influences which can be so detected include stress, strain, shear, temperature change, humidity, magnetic field, electromagnetic radiation, and the presence or absence of certain chemicals. This behavior can be made the basis for a wide variety of sensor devices.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2001},
month = {2}
}

Patent:

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