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A Compact-Sized Fully Self-Powered Wireless Flowmeter Based on Triboelectric Discharge.

Dong Wan¹, Xin Xia¹, Haoyu Wang²

¹Thrust of Sustainable Energy and Environment, The Hong Kong University of Science and Technology (Guangzhou), Nansha, Guangzhou, Guangdong, 511400, China.

|April 18, 2024

Summary

This study presents a compact, self-powered wireless sensing flowmeter for real-time flow monitoring. It utilizes a rotating triboelectric nanogenerator to enable omnidirectional wireless sensing without external power.

Keywords:

flowmeter fully self‐powered real‐time triboelectric discharge wireless sensing

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Area of Science:

Materials Science
Electrical Engineering
Environmental Science

Background:

Flow sensing is crucial for industrial and environmental applications.
Existing wireless flow meters often require external power and lack omnidirectionality.
Developing self-powered, compact, and omnidirectional flow sensors is a significant challenge.

Purpose of the Study:

To introduce a compact-sized, fully self-powered wireless sensing flowmeter (CSWF).
To demonstrate real-time and omnidirectional gas/liquid flow sensing capabilities.
To enable wireless remote monitoring for environmental applications.

Main Methods:

A rotating triboelectric nanogenerator (R-TENG) was developed to power the device.
The R-TENG triggers a gas discharge tube (GDT) for electromagnetic wave emission.
The CSWF transmits real-time flow data wirelessly over distances exceeding 10 meters.

Main Results:

A compact flowmeter (diameter < 50 mm) was successfully fabricated.
The device operates autonomously without external power support.
Real-time wireless remote monitoring of wind speed and water flow rate was achieved.

Conclusions:

The developed CSWF offers a novel solution for self-powered, wireless flow sensing.
This technology has broad potential applications in environmental monitoring and disaster warning systems.
The approach facilitates the development of sustainable, long-term monitoring systems.