Testo Ag

Testo Gmbh & Co.

Jürgen Hall

Mike Muhl

Andreas Derr

Martin Rombach

Manfred Streicher

Gerd Heckelmann

Udo Hug

Heinz Oswald

Heinz Osswald

A measuring arrangement for determining flow speeds in a flow channel includes a probe tube which is introduced via a first opening into the flow channel. The probe tube is exposed to a flow with a flow speed, the side of the probe tube facing the flow comprising a plurality of openings which are interconnected inside the probe tube such that a total pressure dependent on the flow speed prevails inside the probe tube. The measuring arrangement also comprises a static pressure opening in the flow channel, and a differential pressure sensor that determines the differential pressure between the total pressure inside the probe and the static pressure in the flow channel. The probe tube may be partially surrounded by a shield which is mobile and/or length-adjustable and that, according to its position and/or length along the probe tube, may close one, several or none of the openings.

Measuring arrangement for flow measurement in a channel

The invention relates to a joint which can be subjected to the temperature influences of an external medium () and joins an especially ceramic component () to an especially metallic component (). Said joint consists of a first adhesive joint () between the metallic component and the ceramic component, and a second adhesive joint (), the adhesive () of the second joint having a higher elasticity than that () of the first adhesive joint (), and the second joint being arranged in such a way that it prevents direct contact between the first adhesive joint () and an external medium (). The inventive joint can preferably be used, for example, preferably in a sensor module of a measuring appliance which can be introduced into a medium to be analyzed.

Thermally stable and liquid-tight joint between a first ceramic, metal, or plastic component and a second ceramic, metal or plastic component, and the use of one such joint

The aim of the invention is to provide a simple and reliable method of measuring the quality of a fluid (), in particular an oil or fat. This is achieved by a dielectric measurement in conjunction with a temperature measurement, which are carried out in situ by means of a measuring assembly and a sensor assembly () used with the latter, whereby the sensor assembly is submerged in the fluid. This permits information concerning the condition of the fluid, in particular concerning the age of the frying oil or fat, to be obtained in a rapid, low-cost manner.

Measurement sensor assembly and method for measuring the quality of a fluid

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Rötenbach, Germany

Jürgen Hall