Digital pressure transducer for use at high temperatures

Patent · Thu Jan 01 04:00:00 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
• 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

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