Portable Electronic Device Chemical Sensor Housing Opening
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Solution Overview
Problem
Current portable electronic devices lack the capability to effectively identify and measure multiple chemical analytes in their environment, such as gases and vapors, which is essential for detecting toxic substances and health indicators like ethanol levels.
Innovation Solution
A portable electronic device equipped with a chemical sensor array that can detect properties of multiple analytes, integrated into a housing with a small opening for exposure to the environment, and connected to a flexible conductor board and processing unit, allowing for accurate and stable chemical analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a chemical sensor is integrated inside the housing, then the device structure is protected and compact, but the sensor cannot effectively access environmental analytes
Solution Approach 1:
The housing is segmented with a dedicated opening that separates the internal sensor environment from the external environment, allowing controlled access for analytes while maintaining overall device protection and compact integration
Solution Approach 2:
The opening acts as an intermediary structure that mediates between the protected internal housing and the external environment, enabling analyte transport to the sensor while maintaining the protective barrier of the housing
2Adaptability or versatility
If multiple analytes are detected by a single chemical sensor, then the device functionality is enhanced, but the measurement precision for each individual analyte decreases
Solution Approach 1:
The chemical sensing capability is segmented into multiple independent sensor elements, each optimized for detecting specific analytes, allowing simultaneous multi-analyte detection while maintaining high measurement precision for each individual analyte through dedicated sensing mechanisms
Solution Approach 2:
The detection capability is extended to multiple dimensions by incorporating sensors that can detect different analyte types (e.g., gases, vapors, liquids) simultaneously, enhancing versatility without compromising precision through multi-dimensional sensing architecture
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
Enables the device to provide users with real-time chemical information about their surroundings, enabling detection of toxic gases and health indicators, enhancing the device's functionality beyond traditional computing and telecommunication tasks.
Implementation Method 1
The chemical sensor may comprise at least one receptor of a sensor material, e.g. in form of a layer, to which an analyte may bond to and as such modify an electrical property of the sensor material such as its electrical conductance
Implementation Method 2
A sensor device for detecting gases includes a sensing element having an electrical resistance that changes in the presence of a target gas
Data Source
AI summary
A portable electronic device comprises a housing (2) and chemical sensor (12) arranged inside the housing (2) which chemical sensor (2) is adapted to measure a property of different analytes. The device further comprises an opening (211) in the housing (2) for exposing the chemical sensor (12) to a fluid to be analyzed.