Multi-Element Thermal Sensor for Faster Multi-Substance Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing sensors using MEMS elements face challenges in accurately detecting multiple substances due to similar heat dissipation characteristics, leading to insufficient detection accuracy and prolonged measurement times when multiple substances are present.
Innovation Solution
The sensor employs multiple detection elements with varying areas, lengths, widths, thicknesses, and materials of connect portions to differentiate heat dissipation characteristics, allowing for simultaneous detection of multiple substances with high accuracy and reduced measurement time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple detection elements with different heat dissipation characteristics are used, then detection accuracy for multiple substances is improved, but device complexity increases
Solution Approach 1:
The sensor is divided into multiple detection elements (first detection element and second detection element) with different heat dissipation characteristics. Each detection element has distinct structural parameters (area, length, width, thickness) that create different thermal responses, enabling simultaneous detection of multiple substances through segmented thermal measurement pathways.
Solution Approach 2:
Different detection elements are designed with locally distinct heat dissipation characteristics. The first detection element has specific dimensional parameters while the second detection element has different parameters, creating localized thermal zones that respond differently to various substances, thereby enabling differentiated detection capabilities within the same sensor device.
2Loss of time
If detection elements with different areas and dimensions are used, then measurement time is reduced, but manufacturing precision requirements increase
Solution Approach 1:
The detection elements utilize different physical parameters (area, length, width, thickness) to create distinct heat dissipation characteristics. By varying these geometric parameters, the sensor achieves different thermal response rates, allowing faster measurement of multiple substances simultaneously without requiring extremely tight manufacturing tolerances on individual dimensions.
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 sensor achieves improved detection accuracy and efficiency by utilizing the differences in heat dissipation characteristics of multiple detection elements, enabling precise identification of multiple substances and reducing measurement time.
Implementation Method 1
multiple detection elements with varying areas, lengths, widths, thicknesses, and materials of connect portions to differentiate heat dissipation characteristics
Data Source
AI summary
According to one embodiment, a sensor includes a base, first and second detection units. The base includes first and second base regions. The first detection unit includes a first detection element including a first resistance member, a first conductive member, and a first insulating member. A part of the first insulating member is between the first resistance member and the first conductive member. A first gap is provided between the first base region and first detection element. The first detection element has a first area. The second detection unit includes a second detection element including a second resistance member, a second conductive member, and a second insulating member. A part of the second insulating member is between the second resistance member and the second conductive member. A second gap is provided between the second base region and second detection element. The second detection element has a second area.