Temperature Sensor Attachment via Nested Fixing Element
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Solution Overview
Problem
Existing temperature determination devices face challenges in secure attachment, especially under harsh conditions, with risks of detachment due to extreme temperatures and mechanical forces, leading to unreliable measurements.
Innovation Solution
A temperature determination device featuring a thermally conductive fixing element surrounding a temperature-dependent measuring element, combined with a retaining bracket for enhanced attachment and stability, allowing for secure attachment via adhesives, soldering, or welding, and utilizing multiple measuring elements for improved accuracy and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If temperature sensors are attached to the measuring tube, then measurement accuracy is improved, but the risk of detachment increases under harsh conditions
Solution Approach 1:
The measuring element is embedded within the fixing element, creating a nested structure where the sensor is housed inside a protective housing. This nesting provides mechanical protection while maintaining thermal contact, resolving the contradiction between attachment reliability and measurement precision.
Solution Approach 2:
The fixing element is designed as a compound structure with both thermally conductive and mechanically strong properties. This composite approach allows the fixing element to provide both secure mechanical attachment and effective thermal coupling to the measuring tube, simultaneously improving reliability and measurement accuracy.
2Measurement precision
If temperature sensors are attached to the measuring tube, then temperature determination is enabled, but contact stability changes over time leading to unreliable measurements
Solution Approach 1:
The fixing element is designed to pre-establish a stable thermal and mechanical connection between the measuring element and the measuring tube. By providing this preliminary stable contact, the system prevents contact instability over time, ensuring consistent measurement reliability throughout the sensor's operational life.
3Reliability
If the measuring element is directly attached to the measuring tube, then attachment is simple, but the fixing surface area is limited reducing measurement reliability
Solution Approach 1:
The fixing element extends the attachment interface from a simple point or line contact to a distributed surface area. By adding dimensional complexity to the fixing structure, the system increases the thermal and mechanical contact area with the measuring tube, thereby improving attachment reliability without complicating the basic attachment function.
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 ensures secure and reliable temperature measurement by maintaining attachment under harsh conditions and enhancing measurement accuracy through stable electrical connections and redundant temperature determination.
Implementation Method 1
a measuring element with a temperature-dependent electric resistance value is provided
Implementation Method 2
The measuring element is at least partially surrounded by a thermally conductive fixing element
Data Source
AI summary
A device (1) for determining temperature and a measuring arrangement for determining flow that allows for a secure attachment on an object. The device has a measuring element (2) with a temperature-dependent electric resistance value. The measuring element (2) is surrounded by a thermally conductive fixing element (5) and is encompassed by a retaining bracket (6).