摘要:
A pressure transmitter (1) including tube-like pressure introducing pipes (11, 11'), a sealed-in liquid (L), the inside of the pressure introducing pipes (11, 11') being filled with the sealed-in liquid (L), pressure receiving diaphragms (13, 13') for receiving the pressures of measurement fluids (Fh, Fl), the pressure receiving diaphragms (13, 13') being set up in a state where one-side apertures in the pressure introducing pipes (11, 11') are blocked by the pressure receiving diaphragms (13, 13'), a pressure sensor (15) that is set up in common to the other-side apertures in the pressure introducing pipes (11, 11') in a state where the pressure sensor (15) is exposed to the sealed-in liquid (L), and hydrogen-permeation prevention layers (21) that are set up on the pressure receiving diaphragms (13, 13'), wherein the pressure transmitter (1) further includes a hydrogen-storage material that is set up inside the pressure introducing pipes (11, 11').
摘要:
La présente invention concerne un capteur de pression à membrane comprenant un corps (10) qui définit une chambre de pression (12) communiquant avec un fluide dont on souhaite contrôler la pression et qui est délimitée d'un côté par une membrane déformable (20), un équipage mobile (100) sollicité par la membrane (20) et un capot (40) entourant l'équipage mobile (100) et obturé de façon étanche par la membrane (20). De plus, selon l'invention, le capteur comprend entre la membrane (20) et l'équipage mobile (100) un organe de compensation (203) apte à compenser les déplacements de la membrane dus à des variations de pression sous le capot (40) ainsi que les dilatations thermiques des éléments intervenant dans le positionnement de l'équipage mobile (100).
摘要:
The present invention relates to a medical liquid-pressure-detecting device capable of detecting both the negative pressure and the positive pressure of liquid, whereby the misconnection of the device to a liquid flow route can be prevented. A medical liquid-pressure-detecting device (5) includes a chamber unit (6) having an inlet (6aa) from which liquid flowing in a flow route is taken in and an outlet (6ab) from which the liquid is discharged, the chamber unit (6) being capable of storing the liquid by a predetermined amount; and a diaphragm (7) dividing an inside of the chamber unit (6) into a liquid chamber (S1) that stores the liquid and a gas chamber (S2) that stores a predetermined gas, the diaphragm (7) being deformable in accordance with a pressure of the liquid in the liquid chamber (S1), the medical liquid-pressure-detecting device (5) being capable of detecting a pressure of the liquid in the flow route on the basis of a change in the pressure in the gas chamber (S2) that is caused by the deformation of the diaphragm (7). The diaphragm (7) includes a negative-pressure-detecting region (B) that deforms toward one side when a negative pressure is generated in the liquid stored in the liquid chamber (S1), and a positive-pressure-detecting region (A) that deforms toward an other side when a positive pressure is generated in the liquid stored in the liquid chamber (S1).
摘要:
A pressure-sensor device (1) has: - a component sensitive to pressure, comprising a sensor body (5), with an elastically deformable membrane part (5a), and at least one detection element (6) for detecting a deformation of the membrane (5a); - a structure (2, 3) for housing or supporting the pressure-sensitive component, having at least one passageway (15) for a fluid the pressure of which is to be detected, the housing or supporting structure (2, 3) comprising a supporting body (2) with respect to which the sensor body (5) is positioned in such a way that its membrane part (5a) is exposed to the fluid coming out of the passageway (15), the supporting body (2) having a hydraulic-connection portion (2a) and a duct (14) that extends from the hydraulic-connection portion (2a); - at least one elastically deformable body (16), formed with one or more elastically deformable or compressible materials, comprising at least one from among: - a compressible compensation element (20, 21), configured for compensating any possible variations in volume of the fluid; - a sealing element (13, 17); configured for providing a seal with respect to at least one of the housing or supporting structure (2, 3), and the sensor body (5); and - a supporting element (23), configured for supporting or positioning the sensor body (5) with respect to the housing or supporting structure (2, 3). At least one from among the compressible compensation element (16), the sealing element (13, 17) and the supporting element (23) is overmoulded on at least one of the housing or supporting structure (2, 3) and the sensor body (5).
摘要:
An improved pressure transmitter having a body (112) with signal pressure responsive means (128) and output pressure means having pressure responsive means (166), a supply of fluid pressure to said output pressure means, and adjusting means (A) interposed between said signal pressure responsive means and said output pressure responsive means to adjust the force transmitted between said two pressure responsive means.
摘要:
A pressure transmitter (1) including tube-like pressure introducing pipes (11, 11'), a sealed-in liquid (L), the inside of the pressure introducing pipes (11, 11') being filled with the sealed-in liquid (L), pressure receiving diaphragms (13, 13') for receiving the pressures of measurement fluids (Fh, Fl), the pressure receiving diaphragms (13, 13') being set up in a state where one-side apertures in the pressure introducing pipes (11, 11') are blocked by the pressure receiving diaphragms (13, 13'), and a pressure sensor (15) that is set up in common to the other-side apertures in the pressure introducing pipes (11, 11') in a state where the pressure sensor (15) is exposed to the sealed-in liquid (L), wherein the sealed-in liquid (L) is silicon oil containing phenyl groups, the pressure transmitter (1) further including a hydrogen-storage material that is set up inside the pressure introducing pipes (11, 11').
摘要:
A pressure sensor measures pressure by measuring the deflection of a MEMS membrane using a capacitive read-out method. There are two ways to implement the invention. One involves the use of an integrated Pirani sensor and the other involves the use of an integrated resonator, to function as a reference pressure sensor, for measuring an internal cavity pressure.