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Title: Sensor apparatus using an electrochemical cell

Abstract

A novel technology for sensing mechanical quantities such as force, stress, strain, pressure and acceleration has been invented. This technology is based on a change in the electrochemically generated voltage (electromotive force) with application of force, stress, strain, pressure or acceleration. The change in the voltage is due to a change in the internal resistance of the electrochemical cell with a change in the relative position or orientation of the electrodes (anode and cathode) in the cell. The signal to be detected (e.g. force, stress, strain, pressure or acceleration) is applied to one of the electrodes to cause a change in the relative position or orientation between the electrodes. Various materials, solid, semisolid, gel, paste or liquid can be utilized as the electrolyte. The electrolyte must be an ion conductor. The examples of solid electrolytes include specific polymer conductors, polymer composites, ion conducting glasses and ceramics. The electrodes are made of conductors such as metals with dissimilar electronegativities. Significantly enhanced sensitivities, up to three orders of magnitude higher than that of comparable commercial sensors, are obtained. The materials are substantially less expensive than commercially used materials for mechanical sensors.

Inventors:
 [1]
  1. 1309 Gatewood Dr., Apt. 1703, Auburn, AL 36830
Issue Date:
Research Org.:
Univ. of Alabama, Tuscaloosa, AL (US)
OSTI Identifier:
874721
Patent Number(s):
6448621
Assignee:
Thakur; Mrinal (1309 Gatewood Dr., Apt. 1703, Auburn, AL 36830)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01L - MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
G - PHYSICS G01 - MEASURING G01P - MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK
DOE Contract Number:  
FC02-91ER75678
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
sensor; apparatus; electrochemical; cell; novel; technology; sensing; mechanical; quantities; force; stress; strain; pressure; acceleration; invented; based; change; electrochemically; generated; voltage; electromotive; application; due; internal; resistance; position; orientation; electrodes; anode; cathode; signal; detected; applied; materials; solid; semisolid; paste; liquid; utilized; electrolyte; conductor; examples; electrolytes; specific; polymer; conductors; composites; conducting; glasses; ceramics; metals; dissimilar; electronegativities; significantly; enhanced; sensitivities; magnitude; comparable; commercial; sensors; obtained; substantially; expensive; commercially; electrochemical cell; solid electrolyte; polymer composite; /257/205/429/

Citation Formats

Thakur, Mrinal. Sensor apparatus using an electrochemical cell. United States: N. p., 2002. Web.
Thakur, Mrinal. Sensor apparatus using an electrochemical cell. United States.
Thakur, Mrinal. Tue . "Sensor apparatus using an electrochemical cell". United States. https://www.osti.gov/servlets/purl/874721.
@article{osti_874721,
title = {Sensor apparatus using an electrochemical cell},
author = {Thakur, Mrinal},
abstractNote = {A novel technology for sensing mechanical quantities such as force, stress, strain, pressure and acceleration has been invented. This technology is based on a change in the electrochemically generated voltage (electromotive force) with application of force, stress, strain, pressure or acceleration. The change in the voltage is due to a change in the internal resistance of the electrochemical cell with a change in the relative position or orientation of the electrodes (anode and cathode) in the cell. The signal to be detected (e.g. force, stress, strain, pressure or acceleration) is applied to one of the electrodes to cause a change in the relative position or orientation between the electrodes. Various materials, solid, semisolid, gel, paste or liquid can be utilized as the electrolyte. The electrolyte must be an ion conductor. The examples of solid electrolytes include specific polymer conductors, polymer composites, ion conducting glasses and ceramics. The electrodes are made of conductors such as metals with dissimilar electronegativities. Significantly enhanced sensitivities, up to three orders of magnitude higher than that of comparable commercial sensors, are obtained. The materials are substantially less expensive than commercially used materials for mechanical sensors.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {1}
}

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