Tubular transducer structures
First Claim
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1. A pressure transducer apparatus, comprising;
- a longitudinal tubular insulator member having an inlet and outlet port for enabling a pressure conducting fluid to propagate therethrough, said tubular member having at least one elongated flat surface area of a thickness substantially less than the thickness of the remaining surface area with said flat surface area adapted to deflect according to pressure variations in said medium, and a pressure sensor array positioned on said flat surface area on the side not in contact with said fluid medium wherein said longitudinal tubular member is of a "D" shaped cross section, with the arcuate portion of said "D" being substantially thicker than the base portion with said base portion being said flat surface area.
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Abstract
A pressure transducer employs a tubular glass structure of a "D" shaped cross section, with the arcuate section of the "D" shaped configuration being substantially thicker than the base section. A sensor array is positioned on the underside of the base section while a pressure conducting fluid is directed through the tubular member to provide deflection of the base to cause the sensor array to provide an output indicative of pressure variations in the fluid medium. The sensor array as positioned on the underside of the base is both electrically and mechanically isolated from the pressure conducting medium.
51 Citations
19 Claims
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1. A pressure transducer apparatus, comprising;
a longitudinal tubular insulator member having an inlet and outlet port for enabling a pressure conducting fluid to propagate therethrough, said tubular member having at least one elongated flat surface area of a thickness substantially less than the thickness of the remaining surface area with said flat surface area adapted to deflect according to pressure variations in said medium, and a pressure sensor array positioned on said flat surface area on the side not in contact with said fluid medium wherein said longitudinal tubular member is of a "D" shaped cross section, with the arcuate portion of said "D" being substantially thicker than the base portion with said base portion being said flat surface area. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A pressure transducer apparatus for mounting in a housing having an internal hollow with an inlet opening for receiving a pressure conducting fluid and an output opening for discharging said fluid, said transducer comprising;
a longitudinal tubular insulator member having an inlet coupled to said inlet opening and an outlet coupled to said outlet opening with said inlet and outlet communicating via the hollow of said tubular member of a "D" shaped cross section, with the arcuate portion of said "D" being thicker than the base portion of said "D", with a pressure sensor array positioned on said base portion and located on the surface thereof not in communication with said hollow. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
Specification