Dionex Softron Gmbh

Michael Haeckel

Richard Schloderer

Christoph Strobl

Stefan Seitz

The present invention relates to an assembly comprising a source of electromagnetic radiation, a detector assembly comprising a detector for electromagnetic radiation, a tube assembly comprising a portion of a tube, and a source optical element configured to transmit electromagnetic radiation received at a receiving end to an emitting end of the source optical element. The detector assembly comprises a detector assembly receiving end positioned to receive at least a part of the electromagnetic radiation from the source, wherein at least part of the electromagnetic radiation received at the detector assembly receiving end is received by the detector. A first direction (x) is defined by a light path between the emitting end of the source optical element and the detector assembly receiving end, wherein the tube assembly is positioned between the emitting end and the detector assembly receiving end in the first direction (x), wherein the tube assembly is movable to change its position, and wherein an amount of electromagnetic radiation received by the detector depends on the position of the tube assembly. The present invention further relates to a Coriolis flow meter system, a corresponding method and a solvent delivery system.

Measurement sensor for coriolis flow meter

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=S(1+COR(t)); wherein S is the pump speed, Sis 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 Aand a time-dependent function f(t), i.e., COR(t)=A&#xb7;&#x192;(t); and wherein the corrective amplitude Acor is set based on 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.

Method of pump operation, use of the method in HPLC, pump, pump system, and HPLC system

A fluidic plug unit for liquid-conducting components, in particular for high-performance liquid chromatography, includes a plug housing that has a plug region with a front plug region and a rear plug region which is adjoined thereto in an axial direction. The plug unit is designed for connection to a bushing unit. In a connected state of the plug unit and bushing unit, an annular space, which is substantially closed on all sides, is formed for a sealing element of the plug unit, the annular space being bounded by an outer wall of the front plug region and an inner wall of the receiving recess of the bushing unit.

Fluidic plug unit and connecting device for liquid conducting components

A switching valve, in particular for controlling a fluid subject to high pressure is described. The switching valve has at least one valve unit, which includes a valve seat element and a switching element guided movably in a guide element, wherein the valve seat element and the switching element interact to provide a switching valve function. The valve seat element and the guide element are provided in a housing. The valve seat element, the guide element and the housing form a through flow channel for the fluid to be controlled. An elastically and/or plastically deformable sealing body is provided in a fully enclosed space between the inner wall of the housing and the outer walls of the valve seat element and of the guide element. The sealing body can be subject to a predetermined pressure to seal off the through flow channel from the housing and subject the valve seat element and the guide element to an inward-directed preload.

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Germering, Germany

Michael Haeckel