Pressure measuring system
AssigneeGambro Lundia AB
InventorsJan S. Claren, Jan-Bertil Jeppsson, Peter R. Staehr
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Abstract
An apparatus is disclosed for measuring the pressure of a fluid comprising a pressure sensing element and a pressure transmitting element. The pressure transmitting element has at least one inlet for receiving the fluid whose pressure is to be measured and a pressure transmitting wall member in fluid communication with the inlet, whereby the pressure transmitting wall member may be brought into contact with the pressure sensing element and a source of vacuum for drawing the pressure transmitting wall member against the pressure sensing element so that the pressure sensing element can substantially measure the absolute pressure of the fluid.
Claims20
Apparatus for measuring the pressure of a fluid comprising pressure sensing means and pressure transmitting means, said pressure transmitting means having at least one inlet for receiving said fluid whose pressure is to be measured and a pressure transmitting wall member in fluid communication with said inlet, whereby said pressure transmitting wall member may be brought into contact with said pressure sensing means, and negative pressure means for drawing said pressure transmitting wall member against said pressure sensing means so that said pressure sensing means can substantially measure the absolute pressure of said fluid.
Dependencies are inferred from the claim text.