Digital pressure transducer for use at high temperatures

Patent · Thu Jan 01 00:00:00 EST 1981

OSTI ID:863830

Karplus, Henry H. B. ^[1]

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1. Hinsdale, IL

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.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States)
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4255973
• OSTI ID: 863830
• Country of Publication: United States
• Language: English

Related Subjects

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/