公开(公告)号：US20230076719A1

公开(公告)日：2023-03-09

申请号：US17929083

申请日：2022-09-01

Applicant: Dionex Softron GmbH

Inventor： Christoph STROBL ,  Georg HUBER

IPC: B01F31/80 ,  G01N30/34

Abstract: The present invention relates to a mixing assembly for mixing a fluid, wherein the mixing assembly comprises a fluid accommodation portion configured to accommodate the fluid, and a wave source, wherein the wave source is configured to generate an acoustic wave. The mixing assembly is configured to inject at least part of the acoustic wave into the fluid accommodated in the fluid accommodation portion to thereby cause mixing of the fluid in the fluid accommodation portion. The present invention also relates to a corresponding liquid chromatography system, method and use.

公开(公告)号：US20240280091A1

公开(公告)日：2024-08-22

申请号：US18596260

申请日：2024-03-05

Applicant: DIONEX SOFTRON GMBH

Inventor： Christoph STROBL

IPC: F04B11/00 ,  G01N30/32 ,  G01N30/34 ,  G01N30/36

CPC classification number: F04B11/0058 ,  G01N30/36 ,  G01N2030/324 ,  G01N2030/326 ,  G01N30/34

Abstract: A control device of a piston pump unit comprising at least two piston-cylinder units that operate in a phase-shifted manner for the purpose of liquid chromatography and to a piston pump unit is described. The control device corrects fluctuations of the system pressure while switching from one piston cylinder unit to the respective other piston cylinder unit. The fluctuations can occur as a result of the cooling of the liquid medium that is heated in an adiabatic manner during a pre-compression phase in the working piston. The control unit controls the piston speed of at least one piston-cylinder unit during the transition phase depending on at least one characteristic, which is ascertained from chronologically previously detected pressure values, such that variations of the system pressure as a result of the cooling of the adiabatically heated medium are at least partially compensated for.

公开(公告)号：US20190010940A1

公开(公告)日：2019-01-10

申请号：US16027554

申请日：2018-07-05

Applicant: DIONEX SOFTRON GMBH

Inventor： Christoph STROBL ,  Michael HAECKEL ,  Stefan SEITZ

IPC: F04B49/20 ,  G05D7/06 ,  G01N30/36

Abstract: The present invention relates to a method of operating a pump generating a flow of a fluid with a pressure, the method comprising operating the pump with a pump speed S satisfying the equation S=Ssimple(1+COR(t)); wherein S is the pump speed, Ssimple is the pump speed disregarding any compression and/or expansion of the fluid, t is a time, and COR(t) is a time dependent correction function; wherein the time dependent correction function COR(t) is a product of a corrective amplitude Acor and a time-dependent function f(t), i.e., COR(t)=Acor·f (t); and wherein the corrective amplitude Acor is set by means of a measure for the flow and a measure for the pressure. The present invention also relates to a corresponding use, a pump, a pump system and an HPLC system.

公开(公告)号：US20190271671A1

公开(公告)日：2019-09-05

申请号：US16284942

申请日：2019-02-25

Applicant: DIONEX SOFTRON GMBH

Inventor： Erik BAIGAR ,  Christoph STROBL

IPC: G01N30/76 ,  H01L41/053 ,  H01L41/09 ,  B01D15/10 ,  G01N30/38

Abstract: The present invention relates to a method comprising using an acoustic wave in a chromatography system. The present invention also relates to a corresponding system and a corresponding use. The system may comprise a surface acoustic wave assembly, wherein the surface acoustic wave assembly comprises a sender unit comprising a sender transducer for sending an acoustic wave and a detection unit for detecting the acoustic wave, a substrate configured for propagation of the acoustic wave, wherein the sender transducer is connected to the substrate, wherein the substrate comprises a substrate section for propagation of the wave from the sender transducer, wherein this substrate section comprises a substrate surface, wherein the surface acoustic wave assembly further comprises at least one channel for conducting fluid, wherein this channel is partly defined by the substrate surface.