Acoustic Pressure Seal Diagnostics for Electronic Housing Leaks
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Electronic devices used during water-based activities are prone to seal integrity issues due to wear and tear, cracks, and corrosion, which can compromise their functionality and integrity, leading to potential water ingress and damage to internal components.
Innovation Solution
A built-in seal-integrity diagnostic system for electronic devices that utilizes a housing, audio sensor, and processor to detect acoustic pressure changes and determine a seal-quality metric, employing pressure and audio stimuli to assess leak presence and severity, leveraging existing audio sensors for frequency-dependent signature analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electronic devices are tested for seal integrity before shipping, then initial seal quality is ensured, but seal integrity can become compromised during use due to wear and tear, cracks, and corrosion
Solution Approach 1:
The system performs seal integrity testing before water-based activities by prompting the user to initiate a diagnostic routine. The processor executes a series of tests (acoustic pressure testing, temperature cycling, pressure differential measurement) beforehand to detect seal degradation, ensuring the seal is intact before the device is exposed to water environments.
Solution Approach 2:
The system continuously monitors seal integrity through multiple diagnostic tests and provides feedback to the user via visual indicators on the display. The processor analyzes acoustic pressure responses, temperature changes, and pressure differentials to determine seal quality and communicates the results, allowing users to understand the current seal state and take appropriate actions.
2Measurement precision
If a seal-integrity diagnostic system is implemented, then detection of seal issues is improved, but device complexity increases
Solution Approach 1:
The system reuses existing multi-functional components already present in the device for seal integrity testing. The acoustic pressure sensor serves both audio playback and seal testing functions. The temperature sensor serves both environmental monitoring and thermal cycling test functions. The barometric pressure sensor serves both altitude measurement and pressure differential testing. This approach enables comprehensive seal diagnostics without adding dedicated hardware for each test.
Solution Approach 2:
The system uses the device's own existing components to perform self-diagnosis. The processor controls the testing sequence, the acoustic pressure sensor detects seal leaks, the temperature sensor monitors thermal changes, and the barometric pressure sensor measures external pressure. The display presents results to the user. This self-service approach eliminates the need for external testing equipment and complex additional hardware.
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 system provides reliable detection of seal integrity issues before water-based activities, ensuring the device's safety and preventing water ingress by accurately identifying and quantifying leaks through frequency-dependent acoustic signatures and pressure differentials.
Implementation Method 1
an audio sensor configured to detect an acoustic pressure in a cavity of the housing
Implementation Method 2
determine a seal-quality metric of the housing based at least in part on the acoustic pressure
Data Source
AI summary
An apparatus of the subject technology includes a housing, an audio sensor configured to detect an acoustic pressure in a cavity of the housing, and a processor configured to determine a level of a leak of the housing based at least in part on the acoustic pressure.