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U.S. Department of Energy
Office of Scientific and Technical Information

Digital pressure transducer for use at high temperatures

Patent ·
OSTI ID:5248713
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.
DOE Contract Number:
W-31109-ENG-38
Assignee:
TIC; ERA-05-032742; EDB-80-097876
Patent Number(s):
None
OSTI ID:
5248713
Country of Publication:
United States
Language:
English