Method of operating a resistive heat-loss pressure sensor

Details Method of operating a resistive heat-loss pressure sensor Method of operating a resistive heat-loss pressure sensor

2007-07-31

2007-07-31

Allen, Andre J. (Department: 2855)

Measuring and testing

Fluid pressure gauge

Diaphragm

C073S734000, C073S750000, C073S725000, C073S746000

Reexamination Certificate

active

11146721

ABSTRACT:
In a resistively heated heat-loss pressure gauge, electrical current is switched between a sensing element and a compensating element at different duty cycles. As a result, the sensing element is heated relative to the compensating element. A fixed resistance is placed in series with at least the compensating element. The current source applies current to heat the sensing element to a temperature at which the resistance of the sensing element matches the combined resistance of the compensating element and the fixed resistive element.

REFERENCES:
patent: 1448540 (1923-03-01), Houskeeper
patent: 1668106 (1928-05-01), Dallenback
patent: 1778508 (1930-10-01), Peoples
patent: 1873984 (1932-08-01), Sieber
patent: 2938387 (1960-05-01), Hamilton
patent: 3066537 (1962-12-01), Rivera
patent: 3199356 (1965-08-01), Andriulis
patent: 3580081 (1971-05-01), Greenberg et al.
patent: 3609728 (1971-09-01), Quinn et al.
patent: 3794885 (1974-02-01), Kishi et al.
patent: 4106350 (1978-08-01), Morris et al.
patent: 4159428 (1979-06-01), Antonov et al.
patent: 4279147 (1981-07-01), Djorup
patent: 4448078 (1984-05-01), Bridges
patent: 4492123 (1985-01-01), Reich
patent: 4541286 (1985-09-01), Holme
patent: 4579002 (1986-04-01), Zettler
patent: 4682503 (1987-07-01), Higashi et al.
patent: 4736155 (1988-04-01), McBrien
patent: 4787251 (1988-11-01), Kolodjski
patent: 4964158 (1990-10-01), Okochi et al.
patent: 4995264 (1991-02-01), Stocker et al.
patent: 5079954 (1992-01-01), O'Neal, III
patent: 5184500 (1993-02-01), Krema
patent: 5347869 (1994-09-01), Shie et al.
patent: 5465604 (1995-11-01), Sherman
patent: 5557972 (1996-09-01), Jacobs et al.
patent: 5597957 (1997-01-01), Schieferdecker et al.
patent: 5608168 (1997-03-01), Schoroth
patent: 5668320 (1997-09-01), Cowan
patent: 5693888 (1997-12-01), Enderes et al.
patent: 5832772 (1998-11-01), McEwan
patent: 5909132 (1999-06-01), Trofimenkoff et al.
patent: 5962791 (1999-10-01), Walchli et al.
patent: 6023979 (2000-02-01), Bills et al.
patent: 6227056 (2001-05-01), Bills et al.
patent: 6433524 (2002-08-01), Yang et al.
patent: 6474172 (2002-11-01), Rolff et al.
patent: 6553318 (2003-04-01), Mansky
patent: 6591683 (2003-07-01), Yutani et al.
patent: 6658941 (2003-12-01), Bills et al.
patent: 2003/0038614 (2003-02-01), Walters et al.
patent: 2003/0097876 (2003-05-01), Bills et al.
patent: 2004/0020301 (2004-02-01), Borenstein
patent: 156 525 (1921-12-01), None
patent: WO 97/41414 (1997-11-01), None
patent: WO 02/35893 (2002-05-01), None

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