Pressure activated calibration system for chemical sensors

G - Physics – 01 – F

Patent

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Details

G01F 11/28 (2006.01) G01F 11/32 (2006.01) G01F 11/38 (2006.01) G01F 25/00 (2006.01)

Patent

CA 2369928

A device for remotely calibrating leak sensors is disclosed. The leak sensor calibration device includes a reservoir for storing a fluid calibrant, a conduit in flow communication with the reservoir, an outlet nozzle, an air supply source, and a valve mechanism. A portion of the conduit defines a dosing chamber for storing a measured quantity of the calibrant, and the outlet nozzle is in flow communication with the dosing chamber. The air supply source is adapted to pressurize the measured quantity of calibrant stored in the dosing chamber. The valve mechanism is adapted to eject the measured quantity of calibrant stored in the dosing chamber to the atmosphere through the outlet nozzle.

L'invention concerne un dispositif permettant d'étalonner des détecteurs de fuite à distance. Ce dispositif comprend un réservoir destiné à stocker un agent d'étalonnage de fluide, un conduit en communication fluidique avec le réservoir, une buse de sortie, une source d'alimentation en air, et une système de soupape. Une partie du conduit définit une chambre de dosage servant à stocker une quantité mesurée de l'agent d'étalonnage, et la buse de sortie est en communication fluidique avec la chambre de dosage. La source d'alimentation en air est conçue pour presssuriser la quantité mesurée d'agent d'étalonnage stocké dans la chambre de dosage. Le système de soupape est conçu pour libérer ladite quantité mesurée d'agent d'étalonnage stocké dans la chambre de dosage dans l'atmosphère à travers la buse de sortie.

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