− One of the recent approaches to test A/D converter performance is the so-called Servo-Loop Method. This method is aimed at the non-linearity extraction of static ADC transfer curve. In this paper, we prove an advanced Servo-Loop version focusing on behavioral and transistorlevel example of the Residual Signed Digit (RSD) cyclic A/D converter design. The background of the considered Servo-Loop...

In this paper, based on feedback linearization control method and using a special PI (propotational integrator) regulator (IP) in combination with a feed-forward controller, a three-phase induction servo-drive is speed controlled. First, an observer is employed to estimate the rotor d and q axis flux components. Then, two input-output state variables are introduced to control the dynamics of to...

1. Abstract Work has been carried out to investigate some of the important design parameters and performance criteria that should be addressed when designing servo mechanisms and, subsequently, to put forward a computationally efficient design procedure. Emphasis is put on the handling of the discrete design variables. A two-stage approach is presented that uses dimensionless parameters that ma...

A control valve is the most heavy and expensive device in pneumatic driving system for a soft mechanism. To realize compact inexpensive system, size, weight, cost of must be reduced. In previous study, small-sized servo that can flow rate using diaphragm gate mechanism, driven by low-cost RC motor, was proposed tested. However, mechanism should adjust relative positions rotating disk to achieve...

This work presents some numerical simulations, performed using AMESim software, for a system composed by two redundant servo-actuators. Certain operating conditions are taken into account these electro-hydrostatic servo-actuators, which coupled to the command surface (aileron) of transport aircraft. We first considered situation slight asymmetries in construction then one servo-actuator fails a...

Article history: Received 18 December 2012 Accepted 23 October 2013 Available online 9 November 2013

We describe a general purpose digital servo optimized for feedback control of lasers in atomic, molecular, and optical physics experiments. The servo is capable of feedback bandwidths up to roughly 1 MHz (limited by the 320 ns total latency); loop filter shapes up to fifth order; multiple-input, multiple-output control; and automatic lock acquisition. The configuration of the servo is controlle...

Servo-actuation system is one of the key executing subsystems of the flight control system of an aircraft. With the development of fly-by-wire control systems, redundant servo-actuation systems have been extensively applied. A servo-actuation system has a long life and high reliability, which results in the lack of failure information. In the mean time, available data is insufficient and imprec...

This paper provides a tutorial introduction to visual servo control of robotic manipulators. Since the topic spans many disciplines our goal is limited to providing a basic conceptual framework. We begin by reviewing the prerequisite topics from robotics and computer vision, including a brief review of coordinate transformations, velocity representation, and a description of the geometric aspec...

This thesis describes the design, modeling, manufacture, and testing of a low cost, multiple degree-of-freedom underwater manipulator. Current underwater robotic arm technologies are often expensive or limited in functionality. The goal of this research is to produce a multiple degree-of-freedom manipulator utilizing relatively inexpensive, commercial off-the-shelf servo motors. This project is...