Sensor-Based Ultrasonic Coupling Layer Defect Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing biometric sensor devices, particularly those using ultrasonic and photoacoustic systems, face performance degradation due to imperfections such as air bubbles, contaminants, and damage in the adhesive ultrasonic coupling layer, which affect the transmission of ultrasonic waves and overall system performance.
Innovation Solution
A control system is configured to receive ultrasonic sensor data, detect imperfections in the adhesive ultrasonic coupling layer, and provide prompts to adjust or replace the layer to ensure proper attachment and functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an adhesive ultrasonic coupling layer is used to improve ultrasonic wave transmission, then ultrasonic coupling performance is improved, but the system becomes vulnerable to imperfections such as air bubbles, contaminants, and damage that degrade performance
Solution Approach 1:
The system uses ultrasonic sensor data to detect imperfections in the adhesive coupling layer and provides real-time feedback to the user interface, which prompts the user to adjust or replace the layer. This closed-loop feedback mechanism ensures optimal ultrasonic coupling by continuously monitoring and alerting users to degradation.
Solution Approach 2:
The system performs preliminary detection of imperfections in the adhesive coupling layer before they significantly degrade ultrasonic sensor performance. By detecting air bubbles, contaminants, or damage early, the system can prompt users to make adjustments before measurement accuracy is compromised.
2Measurement precision
If the adhesive ultrasonic coupling layer is monitored for imperfections, then measurement precision is improved, but device complexity increases due to additional detection and control systems
Solution Approach 1:
The ultrasonic receiver system performs dual functions: it both measures biometric parameters and detects imperfections in the adhesive coupling layer. By using the same ultrasonic waves for both measurement and monitoring, the system avoids adding separate detection hardware, thereby maintaining measurement precision while minimizing device complexity.
Solution Approach 2:
The system uses its own ultrasonic sensor data to monitor the condition of its own coupling layer. This self-service approach allows the system to detect imperfections using existing sensor capabilities without requiring external monitoring equipment, thus improving measurement precision control while avoiding additional system complexity.
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
Enhances ultrasonic coupling and improves the performance of ultrasonic and photoacoustic sensor systems by ensuring the adhesive layer is properly attached and free from defects, thereby maintaining effective signal transmission.
Implementation Method 1
receive ultrasonic waves using a range gate delay and a range gate window that correspond with ultrasonic waves from the adhesive ultrasonic coupling layer
Data Source
AI summary
Some disclosed methods involve controlling an apparatus that includes an ultrasonic receiver system. Some such methods involve receiving ultrasonic sensor data from the ultrasonic receiver system and detecting, based at least in part on the ultrasonic sensor data, one or more imperfections in, on or proximate an adhesive ultrasonic coupling layer on an outer surface of the apparatus. Some such methods involve controlling a user interface system to provide a prompt to adjust or replace the adhesive ultrasonic coupling layer responsive to detecting the one or more imperfections in, on or proximate the adhesive ultrasonic coupling layer.