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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:
OSTI Identifier:
5248713
Assignee:
TIC; ERA-05-032742; EDB-80-097876
DOE Contract Number:  
W-31-109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; PRESSURE GAGES; DESIGN; PRESSURE MEASUREMENT; TRANSDUCERS; FLUIDS; HIGH TEMPERATURE; MEASURING INSTRUMENTS; 440300* - Miscellaneous Instruments- (-1989)

Citation Formats

Karplus, H H.B.. Digital pressure transducer for use at high temperatures. United States: N. p., Web.
Karplus, H H.B.. Digital pressure transducer for use at high temperatures. United States.
Karplus, H H.B.. . "Digital pressure transducer for use at high temperatures". United States.
@article{osti_5248713,
title = {Digital pressure transducer for use at high temperatures},
author = {Karplus, H 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 = {},
month = {}
}