Endress + Hauser Flowtec Ag

Stephan Gaberthüel

Hanno Schultheis

Alexander Grün

Tobias Baur

Martin Barth

Anastasios Badarlis

Martin Arnold

Lars Neyerlin

Axel Pfau

Oliver Popp

Panagiotis Papathanasiou

Rainer Höcker

Emioni Papadopoulou

Mathieu Habert

Ermioni Papadopoulou

A method for producing a probe of a thermal flowmeter for measuring mass flow of a medium in a measuring tube, wherein a probe core is provided arranged loosely in a probe sleeve having a longitudinal axis, wherein the probe sleeve is deformed relative to the longitudinal axis completely radially in the direction of the probe core by means of high energy rate forming, wherein a material-locking connection between probe sleeve and probe core results and a rod is formed, wherein the rod represents a base body that is used for probe production, wherein a deformation speed reaches values greater than 100 m/s, and wherein the high energy rate forming includes explosive forming or magnetic forming.

Method for producing a probe of a thermal flowmeter, probe of a thermal flowmeter, and thermal flowmeter

A thermal flow measuring device comprising a sensor with a metal sensor housing, the sensor housing including at least a first and a second pin sleeve extending from a base, each pin sleeve having a longitudinal axis and an end face, the two pin sleeves defining a connecting axis, wherein in the first pin sleeve a first heater is arranged and in the second pin sleeve a temperature sensor is arranged, wherein the sensor housing includes at least a third pin sleeve, having a second heater, and a flow obstruction embodied such that the third pin sleeve is arranged in a first flow direction at least partially in the flow shadow of the flow obstruction, wherein the first flow direction extends at an angle of 80-100&#xb0; to the connecting axis and lies on a plane perpendicular to the longitudinal axes of the first and second pin sleeves.

Thermal, flow measuring device and arrangement with a tube or pipe and the thermal, flow measuring device

The present disclosure relates to a method for manufacturing a sensor for a thermal, flow measuring device. The method includes, in such case, manufacturing a metal jacketing for a sensor core, introducing the sensor core into the metal jacketing and sintering the metal jacketing with introduced sensor core.

Method for manufacturing a sensor of a thermal, flow measuring device for measuring mass flow of a medium in a measuring tube

A flow measuring device comprising a measurement signal-generating sensor element and a metal connection element, especially one manufactured in a generative manufacturing method, for connecting the measurement signal-generating sensor element with an opening or sensor nozzle of a tube, where the connection element is connected with a pressure-bearing component comprising a sleeve and a wall, which extends over the entire cross section in parallel projection in the direction of a longitudinal axis of the sleeve, wherein the pressure bearing component has at least one electrical cable guide and a potting compound, wherein the potting compound fills the sleeve partially or completely, and wherein the pressure bearing component is arranged in the opening or in the sensor nozzle of the tube radially behind the connection element with reference to the longitudinal axis of the tube.

Flow measuring device

The present disclosure relates to a thermal flowmeter comprising at least one measurement sensor having at least one sensor element for determining a measured value for determining the flow rate of a medium. A measurement transducer determines the flow rate using the determined measured value. A tubular connecting element connects the measurement sensor to the measurement transducer and a protective sleeve is provided, which is mechanically connected to the tubular connecting element. The protective sleeve has a sleeve casing having at least two openings, an inflow opening through which the medium can be delivered to the measurement sensor and an outflow opening through which the medium can flow out of the measurement sensor. The connection between the protective sleeve and the tubular connecting element is a connection which is positively engaged at least in part.

Thermal flowmeter

The present disclosure relates to a process connection for connecting a flow measuring device, to a pipeline, the process connection including a base body having an opening for conducting a medium and a flow rectifier, wherein the flow rectifier is inserted into a first recess of the base body and fixed in place by plastic deformation of an edge region of the base body surrounding the first recess, for example, by press fitting.

Process connection for connecting a flow measuring device to a pipeline, field device for automation technology and method for fastening a flow rectifier to a process connection

The present disclosure relates to a method for producing a probe of a thermal flow meter for measuring the mass flow rate of a medium in a measuring tube, the method having the following steps: introducing a probe core in the form of a material to be melted into a first probe casing, the first probe casing having an open first end and a closed second end facing away from the first end; melting the probe core; quenching the probe core to a temperature below the solidification temperature; attaching a thermoelement to a contact surface of the solidified probe core. The invention also relates to a probe obtained according to the production method and to a flow meter including the probes according to the present disclosure.

Method for producing a sensing element for a thermal flow meter, sensing element and flow meter

A thermal, flow measuring device comprising a sensor with a metal sensor housing, which has a hollow body for connecting to a plug-in apparatus and/or a tube or pipe wall, wherein the hollow body has a base area; wherein the sensor housing has at least first and second pin sleeves, which protrude starting from the base area, wherein the metal sensor housing is embodied as one piece and the pin sleeves and the hollow body are connected together seam freely, especially weld seam freely.

Thermal flow measuring device and method for its manufacture

Disclosed is a sensor of a thermal, flow measuring device. The sensor includes a sensor cup having at least one protrusion on the floor of the cup that assures a constant spacing of a sensor element from the cup floor so that a good temperature transfer between the sensor element and a medium flowing around the sensor is assured. Also disclosed is a thermal, flow measuring device employing such a sensor.

Sensor for a thermal, flow measuring device having sensor element spacing protrusions

The present disclosure relates to a method for manufacturing a probe of a thermal, flow measuring device for measuring mass flow of a liquid in a measuring tube, wherein the method includes: introducing a probe core including a hard solder and a core element into a first probe sleeve, wherein the first probe sleeve has an open first end and a closed second end away from the first end; melting the hard solder; affixing the core element by cooling the hard solder to a temperature less than the solidification temperature; and applying a thermoelement to a contact area of the core element or of the solidified hard solder. The present disclosure relates, furthermore, to a probe resulting from the manufacturing process as well as to a flow measuring device having at least one probe of the-present disclosure.

Thermal flow measuring device including probe having probe core with hard solder

The present disclosure relates to a sensor for a thermal flow measuring device, to a thermal flow measuring device, as well as to a method for the manufacture of such a sensor. The sensor includes a sensor thimble, wherein a defined separation of a sensor element from a thimble floor of the sensor thimble is provided by spacers so that a temperature transfer between the sensor and a liquid flowing around the sensor is provided. Thermal contact between the thimble floor and the sensor element is provided by a solder layer.

Sensor for a thermal flow meter, a thermal flowmeter and a method for producing a sensor of a thermal flow meter

A thermal, flow measuring device for determining and/or monitoring a mass flow of a measured medium, comprising a sensor element () having a measuring tube () with a tube wall () and with at least a first and a second temperature sensor element, which are especially embodied as resistance thermometers (), wherein at least one of the temperature sensor elements is heatable, wherein the measuring tube () has a longitudinal axis (A) and a tube contour () with a first tube cross section in the end regions of the measuring tube (), wherein the measuring tube () includes a narrowing having a second tube cross section, which differs in form and/or area from the first tube cross section, wherein the narrowing is divided into at least two segments (), wherein at least one of the segments () is angled relative to the longitudinal axis (A) of the measuring tube () by an angle (&#x3b1;) of at least 5&#xb0; and wherein, in each case, one of the temperature sensor elements is arranged in a respective one of the two segments () externally on the tube wall () of the measuring tube () and is located in thermal contact with the measured medium.

Thermal, flow measuring device

A thermal, flow measuring device for determining and/or monitoring a mass flow of a measured medium through a measuring tube, comprising a sensor having a first heatable resistance thermometer and at least a second heatable resistance thermometer, wherein the sensor has a longitudinal axis and an end face, which is divided into at least two adjoining segments, wherein a surface normal vector of at least a first segment forms with the longitudinal axis of the sensor an angle of at least 5&#xb0;; and use of a thermal, flow measuring device.

Growing community of inventors

Oberwil, Switzerland

Stephan Gaberthüel