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Title: Digital pressure transducer for use at high temperatures

Abstract

A digital pressure sensor for measuring fluid pressures at relatively high temperatures includes an electrically conducting fiber coupled to the fluid by a force disc that causes tension in the fiber to be a function of fluid pressure. The tension causes changes in the mechanical resonant frequency of the fiber, which is caused to vibrate in a magnetic field to produce an electrical signal from a positive-feedback amplifier at the resonant frequency. A count of this frequency provides a measure of the fluid pressure.

Inventors:
 [1]
  1. (Hinsdale, IL)
Issue Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL
OSTI Identifier:
863830
Patent Number(s):
4255973
Assignee:
United States of America as represented by United States (Washington, DC) ANL
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
digital; pressure; transducer; temperatures; sensor; measuring; fluid; pressures; relatively; electrically; conducting; fiber; coupled; force; disc; causes; tension; function; changes; mechanical; resonant; frequency; caused; vibrate; magnetic; field; produce; electrical; signal; positive-feedback; amplifier; count; provides; measure; measuring fluid; resonant frequency; electrical signal; magnetic field; electrically conducting; pressure sensor; pressure transducer; fluid pressure; causes changes; fluid pressures; fiber coupled; conducting fiber; digital pressure; /73/

Citation Formats

Karplus, Henry H. B. Digital pressure transducer for use at high temperatures. United States: N. p., 1981. Web.
Karplus, Henry H. B. Digital pressure transducer for use at high temperatures. United States.
Karplus, Henry H. B. Thu . "Digital pressure transducer for use at high temperatures". United States. https://www.osti.gov/servlets/purl/863830.
@article{osti_863830,
title = {Digital pressure transducer for use at high temperatures},
author = {Karplus, Henry H. B.},
abstractNote = {A digital pressure sensor for measuring fluid pressures at relatively high temperatures includes an electrically conducting fiber coupled to the fluid by a force disc that causes tension in the fiber to be a function of fluid pressure. The tension causes changes in the mechanical resonant frequency of the fiber, which is caused to vibrate in a magnetic field to produce an electrical signal from a positive-feedback amplifier at the resonant frequency. A count of this frequency provides a measure of the fluid pressure.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1981},
month = {1}
}

Patent:

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