Forces on magnetic-driven micro-tweezers based on micro-four-link mechanism
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Hailiang Kang [1] ; Lizhong Xu [1]
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[1] Yanshan University
Yanshan University
China
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- Localización: Mechanics based design of structures and machines, ISSN 1539-7734, Vol. 51, Nº. 2, 2023, págs. 706-720
- Idioma: inglés
- Texto completo no disponible (Saber más ...)
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Resumen
In this paper, a micro-magnetic-driven tweezers is proposed based on a micro-four-link mechanism in order to simplify structure and control of the micro-tweezers. For the micro-tweezers, the calculated models of molecular forces between microstructures and micro-tweezers or substrates are established. Equations for friction forces between the micro-tweezers and microstructure are given. Relationship between the force on the tweezers and the driving force on the micro-four-bar mechanism is determined.
Current strength in the driving electromagnetic coil as a function of the driving force is given. Using above equations, the forces on the microtweezers in the process of cramping microstructure are analyzed. The basic conditions for lifting a given micro-weight are determined. The current intensity in the driving electromagnetic coil is determined for lifting a given micro-ring. Results can be used to design the micro-tweezers and determine current intensity in the electromagnetic coil for a given microstructure.
