Purge gas pressure monitoring system

Details Purge gas pressure monitoring system Purge gas pressure monitoring system

1992-05-14

1994-05-31

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

With pressure and/or temperature compensation

73301, 73714, 374143, G01L 900, G01L 1904

Patent

active

053158768

ABSTRACT:
A purge gas pressure monitoring system has a piezometer tube running from a pressure measuring instrument into a medium to be monitored. A temperature detector device extends the length of the piezometer tube. Outputs from the pressure measuring instrument and the temperature detector device are coupled to a central processing device or microcomputer for monitoring the outputs and using the outputs along with stored data to calculate a corrected pressure signal which is corrected for errors including errors arising as a result of variations of the average temperature along the piezometer line from a reference value.

REFERENCES:
patent: 3043144 (1962-07-01), Glassey
patent: 3407664 (1968-10-01), Glassey
patent: 3475959 (1969-11-01), Glassey
patent: 4089058 (1978-05-01), Murdock
patent: 4266430 (1981-05-01), Glassey
patent: 4277981 (1981-07-01), Glassey
patent: 4722228 (1988-02-01), Awa et al.
patent: 5005408 (1991-04-01), Glassey
patent: 5163321 (1992-11-01), Perales

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