Coriolis Sensor Integrated Temperature Measurement

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Solution Overview

Problem

The complexity and susceptibility to errors in Coriolis measuring devices are increased by the need for additional temperature sensors, which complicate manufacturing and operation.

Innovation Solution

Integration of a temperature measuring device within the Coriolis measuring sensor or exciter, utilizing a coil device with a printed circuit board and a resistance measuring section, allows for temperature measurement without additional cables, reducing complexity and improving performance by minimizing mutual influence between the coil and resistance measurement sections.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If additional temperature sensors are installed in the Coriolis measuring device, then temperature measurement capability is improved, but device complexity and susceptibility to errors increase

Engineering Contradiction:
Improvetemperature measurement capabilityVSAvoiddevice complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent combines the temperature measuring device with either the sensor or exciter into an integrated unit. The temperature measuring device shares the same housing and electrical connections as the sensor/exciter, eliminating the need for separate temperature sensor installations. This merging reduces the number of separate components while maintaining temperature measurement functionality.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The sensor or exciter is designed to perform multiple functions: both Coriolis measurement and temperature measurement. By integrating the temperature measuring device into the existing sensor/exciter structure, a single component serves dual purposes, reducing overall device complexity while providing comprehensive measurement capabilities.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Measurement precision

If additional temperature sensors are installed in the Coriolis measuring device, then temperature measurement capability is improved, but manufacturing complexity increases

Engineering Contradiction:
Improvetemperature measurement capabilityVSAvoidmanufacturing complexity
Core Design Contradiction:
Measurement precisionVSEase of manufacture

Solution Approach 1:

The temperature measuring device is manufactured as an integrated unit with the sensor or exciter. They share common housing structures, mounting arrangements, and electrical connection pathways. This combined manufacturing approach reduces the number of separate assembly operations and simplifies the manufacturing process compared to installing separate temperature sensors.

Inventive Principle:
Principle #5Merging (Combining)

3Measurement precision

If additional cables are used for temperature sensors, then temperature measurement is enabled, but susceptibility to errors and complexity increase

Engineering Contradiction:
Improvetemperature measurementVSAvoidsusceptibility to errors
Core Design Contradiction:
Measurement precisionVSReliability

Solution Approach 1:

The temperature measuring device shares the same electrical connections and cable pathways as the sensor or exciter. The housing provides a common sealed environment for both the Coriolis measurement electronics and temperature measurement electronics, reducing exposure to environmental errors and simplifying cable management.

Inventive Principle:
Principle #5Merging (Combining)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This integration enables accurate temperature detection and vibration analysis, reducing manufacturing complexity and improving measurement accuracy while minimizing cable requirements, thus enhancing the robustness and performance of Coriolis measuring devices.

Implementation Method 1

at least one exciter configured to excite the at least one measuring tube to vibrate; wherein the magnet device and the coil device are movable relative to each other

Methodology Applied
Scientific EffectElectromagnetic interaction: Lorentz Force

Implementation Method 2

at least one sensor configured to detect the displacement of the vibrations of at least one measuring tube

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 3

the temperature measuring device has a resistance measuring section made of an electrically conductive material

Methodology Applied
Scientific EffectElectrical resistance temperature dependence: Electrical Resistance

Data Source

PatentEP3746750B1Coriolis measuring sensor, and coriolis measuring device
Publication Date: 2022.01.05 ENDRESS HAUSER FLOWTEC AG
  • EP3746750B1 patent drawingFigure 1
  • EP3746750B1 patent drawingFigure 2
  • EP3746750B1 patent drawingFigure 3a~3c

AI summary

The invention relates to a Coriolis measuring sensor (10) of a Coriolis measuring device (1) and to the Coriolis measuring device for detecting a mass flow or the density of a medium flowing through at least one measuring tube of the Coriolis measuring device, comprising: the at least one measuring tube (11), which comprises an inlet (11.1) and an outlet (11.2) and which is designed to conduct the medium between the inlet and the outlet; at least one exciter (12), which is designed to cause the at least one measuring tube to vibrate; and at least one sensor (13), which is designed to detect the deflection of the vibrations of at least one measuring tube; wherein at least one exciter and at least one sensor each have a coil device (14) with at least one coil (14.1) and each have a magnet device (15), and the magnet device and the coil device can be moved relative to each other. The invention is characterized in that at least one exciter or at least one sensor has an integrated temperature measuring device (14.3) which is designed to make the temperature of the exciter or the sensor measurable.