Abstract
Mechanical motion sensing and monitoring is an important component in the field of industrial automation. Rotary motion is one of the most basic forms of mechanical motion, so it is of great significance for the development of the entire industry to realize rotary motion state monitoring. In this paper, a triboelectric rotary motion sensor (TRMS) with variable amplitude differential hybrid electrodes is proposed, and an integrated monitoring system (IMS) is designed to realize real-time monitoring of industrial-grade rotary motion state. First, the operating principle and monitoring characteristics are studied. The experiment results indicate that the TRMS can achieve rotation speed measurement in the range of 10–1000 rpm with good linearity, and the error rate of rotation speed is less than 0.8%. Besides, the TRMS has an angle monitoring range of 360° and its resolution is 1.5° in bidirectional rotation. Finally, the applications of the designed TRMS and IMS prove the feasibility of self-powered rotary motion monitoring. This work further promotes the development of triboelectric sensors (TESs) in industrial application.
Highlights
Sensor technology is one of three central pillars in modern information technology [1,2]and is applied widely in the fields of industrial automation, automotive electronics, and communication technology [3,4,5]
The rotor consists of a layer of polytetrafluoroethylene (PTFE) film, a printed circuit board (PCB), a silica gel gasket, a turntable, and an adjustment mechanism made of aluminum alloy (AL7075)
To carry out the experiment and application of the triboelectric rotary motion sensor (TRMS), the electrical signals after passing through the voltage divider circuit can be acquired, processed, by two the experiment and application of the TRMS, the electrical signalsand afteranalyzed passing through different systems
Summary
Is applied widely in the fields of industrial automation, automotive electronics, and communication technology [3,4,5]. It has become an indispensable criterion for measuring the development of scientific research and industrial manufacturing. Among all kinds of mechanical motions, rotary motion is one of the most basic forms in the field of industrial automation, which has always been the research hotspot in the fields of science and engineering applications [6,7,8]. With the continuous improvement of the level of industrial automation and manufacturing requirements, passive sensor technology with self-powered function has attracted more and more attention from researchers all over the world [13,14,15]. The output signal of TENGs can well reflect the change of mechanical excitation, and TENG has good adaptability to various forms of mechanical motion, it is considered to be the potential solution of self-powered sensing [20,21,22,23,24]
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