Patent · US Active

Method and measurement device for ascertaining the thermal conductivity of a fluid

US11169102B2 · kind B2 · utility

0Cited by

4References

12Claims

0Family size

Assignee

Diehl Metering GmbH · DE

Inventors

Ulf Hammerschmidt · Braunschweig, DE
ANDREAS BENKERT · Ansbach, DE
Christoph Sosna · Nuremberg, DE
Karl Herrmann · Lenzkirch, DE

Key dates

Filing date	Aug 29, 2019
Grant date	Nov 9, 2021
Priority date	—
Expiry date	Jan 14, 2040

Classification

Technology area (CPC G)Physics
CPC primaryG01N25/18
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A measurement device ascertains the thermal conductivity of a fluid. The device has a fluid volume holding the fluid, a controller, and a sensor module disposed in the fluid volume. The sensor module has a supporting body and a plurality of sensor wires that extend freely between in each case two contact positions of the supporting body. One of the sensor wires serves as a heat source and is able to be energized for this purpose by the controller. The controller is set up to capture, via at least two of the sensor wires that serve as temperature sensors and are arranged at different distances from the heat source, temperature measurement values that depend on the temperature at the respective temperature sensor, and to ascertain the thermal conductivity in dependence on the temperature measurement values.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.