摘要：In order to monitor deformation of high temperature components for a long time,a sensing device integrating a bridge-shaped mechanical displacement amplifier has been *** sensing device has higher resolution and accuracy than conventional ***,the relation between the magnification ratio and the structure size of the displacement amplifier is a bottleneck of sensing device *** this,the magnification ratio of a mechanical displacement amplifier is analytically derived based on its geometry *** prototypes of the displacement amplifier made in propathene are manufactured,and an experimental system is set up to validate the accuracy of the established magnification ratio *** magnification ratios and experimental magnification ratios are compared and agree well,which verifies that the proposed equation is *** analytical equation provides an effective design method for bridge-shaped mechanical displacement amplifiers with an expected magnification ratio.

摘要：Based on frequency response and convex optimization,a novel optimal control system was developed for chemical *** feedforward control is designed to improve the tracking performance of closed loop chemical *** parametric model is not required because the system directly utilizes the frequency response of the loop transfer function,which can be measured *** particular,the extremal values of magnitude and phase can be solved according to constrained quadratic programming optimizer and convex *** examples show the effectiveness of the *** design method is simple and easily adopted in chemical industry.