Thermocouple Type Identification via Magnetic Detection
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Solution Overview
Problem
Temperature measuring devices often incorrectly measure temperatures due to the incorrect selection of thermocouple types, leading to inaccurate readings, as users must manually set the type of thermocouple, which is prone to errors.
Innovation Solution
Incorporating magnetic property detection sensors in the temperature measuring device to automatically identify the type of thermocouple connected, allowing for the selection of the appropriate characteristic curve and eliminating the need for manual configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual setting of thermocouple type is used, then device complexity is reduced, but measurement precision deteriorates due to incorrect selection
Solution Approach 1:
The temperature measuring device automatically identifies the thermocouple type by detecting magnetic properties of the contact elements, eliminating the need for manual user input. The system serves itself by autonomously selecting the correct characteristic curve based on detected magnetic characteristics, thereby preventing incorrect measurements while maintaining operational simplicity.
Solution Approach 2:
The manual mechanical process of selecting and setting the thermocouple type is replaced by an automated magnetic detection system. Measurement sensors detect magnetic properties of the thermocouple contact elements, and this magnetic information is processed to automatically identify the thermocouple type and select the appropriate characteristic curve, substituting human operation with automated sensing and processing.
2Ease of operation
If automated thermocouple type identification is implemented, then ease of operation is improved, but device complexity increases due to additional sensors
Solution Approach 1:
The measurement sensors serve dual functions: they detect the magnetic properties of thermocouple contact elements for automatic type identification, and they can also measure the temperature signal from the thermocouple. This multi-functionality allows the device to automate thermocouple type detection without requiring completely separate sensing systems, thereby improving ease of operation while limiting the increase in device complexity.
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
The solution enables accurate and automated temperature measurement by automatically selecting the correct characteristic curve based on the detected thermocouple type, preventing measurement errors and simplifying the operation of the device.
Implementation Method 1
a first measurement sensor (13) is arranged on a first mating contact element (11) of the at least two mating contact elements (11, 12), it being possible for a magnetic property of a contact element (9, 10) which is plug-connected to the first mating contact element (11) to be detected using said first measurement sensor (13)
Implementation Method 2
the thermocouple converts a temperature difference between a measurement point and a comparison point into an electrical voltage signal between the contact elements
Data Source
AI summary
In a temperature measuring device set (1) with at least one thermocouple (2) and a temperature measuring device (3) that can be connected to the thermocouple (2) in order to measure a temperature, according to the invention a measurement sensor (13, 14) for measuring or detecting a magnetic property is arranged on at least one opposing contact element (11, 12) mating with a contact element (9, 10) of the thermocouple (2), in order to automatically provide specific information or a characteristic curve of the connected thermocouple (2) on the basis of an output signal of the measurement sensor (13, 14).