Magnetic shape memory alloy driver mechanism and nonlinear hysteresis model

Abstract

The dynamic performance (stroke, resolution, speed, etc.) of the focusing mechanism of a microscopic imaging system is the key factor affecting the image quality and detection efficiency. The focusing speed and resolution of the microscopic imaging system depend on the ultra-precise motion of the focusing mechanism. In this study, magnetic shape memory alloy(MSMA) is used to develop a driver for rapid focusing of microscopic imaging system.The more accurate mathematical model is established to study nonlinear control method, improve the accuracy of magnetic shape memory alloy, The magnetic shape memory alloy driver can be applied to realize fast and high-precision focusing in microscopic imaging system, which provides a new idea for focusing device in microscopic imaging system.