Electromagnetic Wave Sensor Arm Layout for Low-Resistance Sensing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electromagnetic wave sensors face challenges in achieving high sensitivity due to the resistance value of the conductor layer connected to the thermistor film being relatively high, which limits the sensitivity of temperature detection.
Innovation Solution
A structure body is designed with a conductor layer connected to a temperature detection element in an electromagnetic wave detector, surrounded by dielectric layers on both sides, where the conductor layer protrudes beyond the dielectric layers in a short direction, reducing the resistance value and enhancing mechanical strength and heat insulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the resistance value of the conductor layer is reduced to improve sensitivity, then the sensitivity increases, but the mechanical strength may be compromised
Solution Approach 1:
The conductor layer is extended in the short direction of the dielectric layers, protruding beyond both end portions of the dielectric layers. This dimensional extension increases the conductor layer's surface area and cross-sectional area, thereby reducing resistance while maintaining adequate mechanical strength through the extended structure.
Solution Approach 2:
The structure is divided into distinct functional components: the conductor layer for electrical conduction, dielectric layers for insulation and support, and the protruding portions for additional conduction path. This segmentation allows each component to be optimized independently for its specific function.
2Measurement precision
If the conductor layer is extended to reduce resistance, then sensitivity improves, but the device complexity increases
Solution Approach 1:
The extended conductor layer serves multiple functions simultaneously: it provides the primary electrical conduction path, extends the sensing area for improved sensitivity, and creates protruding portions that can serve as additional connection points or structural support elements.
Solution Approach 2:
The conductor layer is merged with the dielectric layers to form an integrated structure where the conductor protrudes through and beyond the dielectric boundaries. This merging reduces the need for separate support structures or additional connection elements.
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 configuration allows for highly sensitive temperature detection by maintaining a low resistance value, improving sensing accuracy and efficiency of the electromagnetic wave sensor.
Implementation Method 1
an electromagnetic wave absorber which covers at least a part of the temperature detection element
Implementation Method 2
The electrical resistance of a thermistor film provided in a thermistor element varies in accordance with a variance in temperature of the thermistor film
Implementation Method 3
each of the arm portions includes a conductor layer which is in a line shape and electrically connected to the temperature detection element
Implementation Method 4
dielectric layers which are disposed on both sides of the conductor layer
Data Source
AI summary
The present invention includes an electromagnetic wave detector, and a pair of arm portions and that are positioned on both sides with the electromagnetic wave detector interposed therebetween. The electromagnetic wave detector includes a temperature detection element, and electromagnetic wave absorbers which cover at least a part of the temperature detection element. Each of the arm portions includes a conductor layer which is in a line shape and electrically connected to the temperature detection element, and dielectric layers which are disposed on both sides of the conductor layer. In a short direction of the dielectric layers in a plan view, the conductor layer has a shape protruding outward beyond both end portions of the dielectric layers in the short direction.