Today’s automation machines are becoming more motion-centric than ever before. The number of controlled axes per machine has increased significantly over the past 10 years and will continue to increase. Motion has become the most critical process on the machine. Machines are going from using complex mechanical cams with one or two motors to multi-axis servo motor systems. This new generation of...

The Ferraris principle for measurement of the relative acceleration has been known for more than 100 years. In academic works the potential of this sensor principle has been demonstrated again and again /1, 2/. But only commercial production which has been started some years ago opened up possibilities for the sensor principle in industrial applications. The simple and robust design, combined w...

Today’s automation machines are becoming more motion-centric than ever before. The number of controlled axes per machine has increased significantly over the past 10 years and will continue to increase. Motion has become the most critical process on the machine. Machines are going from using complex mechanical cams with one or two motors to multi-axis servo motor systems. This new generation of...

This paper deals with the virtual testing environment for analog-to-digital converters (ADCs) employing a novel and powerful extension of the Servo-Loop method [1], [4]. We build an improved version of the Servo-Loop targeted to full transistor-level circuit simulation of static integral and differential ADC non-linearity. In comparison with the conventional implementation, the ServoLoop versio...

A method based on binocular vision servoing for positioning of a diagnostic package in inertial confinement fusion (ICF) experiments is presented. The general diagnostic instrument manipulator will provide precision three dimension positioning and alignment-to-target capability in ICF experiments. In this work, we focus on the final precise automatic positioning with a binocular vision system. ...

For reducing the steady state speed ripple, especially in high performance speed servo system applications, the steady state precision is more and more important for real servo systems. This paper investigates the steady state speed ripple periodic disturbance problem for a permanent magnet synchronous motor (PMSM) servo system; a fuzzy adaptive repetitive controller is designed in the speed lo...

TAbstract T— A new modeling software, AMEsim is put forward in this paper to develop a nonlinear model for a higher performance three stage electro-hydraulic servo valve. The simulation results and experimental results on existing valve are consistent, which proves that the developed model is right. The analysis of the model shows that pilot valve bandwidth mainly affects the bandwidth of three...

Suppression of the low-frequency (lf) components of the modulated data stream is a system requirement in optical recording which facilitates the usage of servo systems for reading the optical disc. Insufficient suppression of the lf components of the coded spectrum will lead to improper functioning of the servo systems, and/or acoustical noise generated by the servo systems, and/or additional p...

If pressure natriuresis is to play an important role in arterial pressure control, renal perfusion pressure must have a long-term effect on urinary sodium excretion. The aim of this study was to quantitate the importance of renal perfusion pressure per se in controlling renal hemodynamics and electrolyte excretion chronically. Female mongrel dogs (n = 6) were instrumented with bilateral renal a...

The problem of tracking a reference vector variable from a given class is considered for discrete-time linear multi-input-output plants. The plant and the reference are both described by an input/output relation and the objective is to track exactly in a minimum number of steps. The optimal control law is shown to contain both feedback and feedforward terms and it is obtained by solving only th...