Measuring and testing – Instrument proving or calibrating – Gas or liquid analyzer
Patent
1997-11-12
1999-10-26
Raevis, Robert
Measuring and testing
Instrument proving or calibrating
Gas or liquid analyzer
G12B 1300
Patent
active
059707780
ABSTRACT:
A device for remotely calibrating leak sensors. A supply of liquid analyte calibrant is stored in a reservoir, and is communicated to an outlet nozzle by a conduit having a throughbore. The conduit terminates in an outlet nozzle, and portion of the conduit defines a dosing chamber for storing a measured dose of the liquid calibrant. A thermal activator such as a resistive coil or a radio frequency unit is disposed adjacent the dosing chamber for applying a steep thermal gradient in order to bring the calibrant quickly to its boiling point such that the measured quantity is ejected from the outlet nozzle.
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Fisher Controls International
Raevis Robert
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