F - Mech Eng,Light,Heat,Weapons – 04 – B
Patent
F - Mech Eng,Light,Heat,Weapons
04
B
F04B 43/12 (2006.01) F04B 43/113 (2006.01) F04B 49/06 (2006.01) G01F 1/34 (2006.01)
Patent
CA 2350859
The apparatus comprises a displacement pump with at least one flow vessel, with a pump drive, and with a support means for holding the flow vessel. Furthermore, the apparatus comprises a measuring arrangement responsive to the displacement motions performed by the flow vessel, wherein said displacement motions are picked up by a pressure sensor diposed at the flow vessel or by a strain sensor disposed at the support means. The measuring arrangement serves to sense an actual displacement motion of the flow vessel robustly and reliably, and to deliver a measurement signal representative of this motion. The signal is particularly suited for generating a flow rate estimate representative of the instantaneous volume flow rate and/or for generating a status signal signaling a current operational status. Further, a method is disclosed which supplies information.serving to monitor such an apparatus. The apparatus is suitable for using in a sampler.
Beller Johann
Zeller Robert
Endress + Hauser Wetzer Gmbh + Co. Kg
Smart & Biggar
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