G - Physics – 01 – L
Patent
G - Physics
01
L
G01L 19/08 (2006.01) G01L 19/04 (2006.01)
Patent
CA 2210243
A pressure or flow transmitter (11) having a pressure sensor (27) disposed in a transmitter housing (14). The pressure transmitter (11) includes a diaphragm (18) remote from the pressure sensor (27). The diaphragm (18) is connected to the pressure sensor (27) with capillary tubing (22) containing a fluid. The diaphragm (18) is disposed at a relative vertical position (H) from the transmitter housing (14). The transmitter contains circuitry (58, 60, 62, 64) which provides a transmitter output as a function of the pressure output, the circuitry (58, 60, 62, 64) adjusts the transmitter output as a function of the relative vertical position (H) of the diaphragm (18).
L'invention porte sur un transmetteur de flux ou de pression (11) pourvu d'un capteur de pression (27) installé dans un boîtier (14). Le transmetteur de pression (11) comporte un diaphragme situé à distance du capteur de pression (27). Le diaphragme (18), qui est relié au capteur de pression (27) par un capillaire (22) contenant un fluide, se trouve placé en position verticale relative (H) par rapport au carter (14) logeant le transmetteur (11). Celui-ci (11) comporte un ensemble de circuits (58, 60, 52, 64) produisant une sortie de transmetteur qui est fonction de la sortie de pression et ajustant cette sortie de transmetteur en fonction de la position verticale relative (H) du diaphragme (18).
Marks & Clerk
Rosemount Inc.
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