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A shadow enabled non-invasive probe for multi-feature intelligent liquid surveillance system
Lizhen Lian1,2,3, Qian Zhang1, Wenbo Li2
1School of Materials, Shenzhen Campus of Sun Yat-sen University, No. 66, Gongchang Road, Guangming District, Shenzhen 518107, China. zhangqian6@mail.sysu.edu.cn.
Nanoscale
|December 19, 2023
Summary
A novel non-invasive shadow probe (SP) analyzes liquid shadows to detect features like color and concentration. This self-powered probe, integrated into an intelligent liquid surveillance system (ILSS), offers accurate, real-time liquid analysis without contamination.
Area of Science:
- Sensor Technology
- Analytical Chemistry
- Artificial Intelligence
Background:
- Traditional liquid detection probes face challenges including sample contamination, need for signal emitters, and complex fabrication.
- These limitations hinder the development and application of effective liquid analysis tools.
Purpose of the Study:
- To develop a non-invasive shadow probe (SP) for an intelligent liquid surveillance system (ILSS).
- To enable multi-feature liquid detection and analysis without direct sample contact.
Main Methods:
- Developed a self-powered shadow probe utilizing the shadow effect to analyze liquid variations (area, wavelength, brightness).
- Integrated SPs with signal processing circuits and applied artificial intelligence (AI) for synoptic liquid learning.
- Tested probe performance under ambient light conditions.
Main Results:
- The SP demonstrated high resolution (5 colors, 6 concentrations, 6 levels) with 100% accuracy and a fast response time of 0.2 ms.
- The ILSS achieved a 99.3% test accuracy for 10 types of liquids with multiple features in real-time.
- The system successfully detects and learns about liquids simultaneously using non-invasive methods.
Conclusions:
- The developed non-invasive shadow probe offers a promising solution for multi-feature liquid detection.
- The intelligent liquid surveillance system demonstrates significant potential for future applications in real-time liquid analysis.
