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Title: Magnetically tunable resonance frequency beam utilizing a stress-sensitive film

Abstract

Methods and apparatus for detecting particular frequencies of vibration utilize a magnetically-tunable beam element having a stress-sensitive coating and means for providing magnetic force to controllably deflect the beam element thereby changing its stiffness and its resonance frequency. It is then determined from the response of the magnetically-tunable beam element to the vibration to which the beam is exposed whether or not a particular frequency or frequencies of vibration are detected.

Inventors:
 [1];  [2];  [3]
  1. Kingston, TN
  2. Knoxville, TN
  3. Oak Ridge, TN
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
OSTI Identifier:
874100
Patent Number(s):
6311557
Assignee:
UT-Battelle, LLC (Oak Ridge, TN)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01H - MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
B - PERFORMING OPERATIONS B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL B06B - METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, {e.g.} FOR PERFORMING MECHANICAL WORK IN GENERAL
DOE Contract Number:  
AC05-96OR22464
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
magnetically; tunable; resonance; frequency; beam; utilizing; stress-sensitive; film; methods; apparatus; detecting; frequencies; vibration; utilize; magnetically-tunable; element; coating; means; providing; magnetic; force; controllably; deflect; changing; stiffness; determined; response; exposed; detected; resonance frequency; sensitive film; /73/324/

Citation Formats

Davis, J Kenneth, Thundat, Thomas G, and Wachter, Eric A. Magnetically tunable resonance frequency beam utilizing a stress-sensitive film. United States: N. p., 2001. Web.
Davis, J Kenneth, Thundat, Thomas G, & Wachter, Eric A. Magnetically tunable resonance frequency beam utilizing a stress-sensitive film. United States.
Davis, J Kenneth, Thundat, Thomas G, and Wachter, Eric A. Mon . "Magnetically tunable resonance frequency beam utilizing a stress-sensitive film". United States. https://www.osti.gov/servlets/purl/874100.
@article{osti_874100,
title = {Magnetically tunable resonance frequency beam utilizing a stress-sensitive film},
author = {Davis, J Kenneth and Thundat, Thomas G and Wachter, Eric A},
abstractNote = {Methods and apparatus for detecting particular frequencies of vibration utilize a magnetically-tunable beam element having a stress-sensitive coating and means for providing magnetic force to controllably deflect the beam element thereby changing its stiffness and its resonance frequency. It is then determined from the response of the magnetically-tunable beam element to the vibration to which the beam is exposed whether or not a particular frequency or frequencies of vibration are detected.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2001},
month = {1}
}

Works referenced in this record:

Adsorption‐induced surface stress and its effects on resonance frequency of microcantilevers
journal, April 1995