The Electronic Numerical Integrator

The Electronic Numerical Integrator

Design Modification of Rogowski Coil for Current Measurement in Low Frequency

The principle object of this paper is to offer a modified design of Rogowski coil based on its frequency response. The improvement of the integrator circuit for nullifying the phase difference between the waveforms of the measured-current and the corresponding terminal voltage is a further object of this investigation. This paper addresses an accurate, yet more efficient measuring and protect...

Mathematisches Forschungsinstitut Oberwolfach Geometric Numerical Integration

The subject of this workshop was numerical methods that preserve geometric properties of the flow of an ordinary or partial differential equation. This was complemented by the question as to how structure preservation affects the long-time behaviour of numerical methods. Mathematics Subject Classification (2000): 65xx. Introduction by the Organisers The subject of this workshop was numerical me...

kT/C noise: Covariance matrix calculation of instationary noise in time-varying systems

The voltage variance at a capacitance C with a noisy resistance in parallel is kT/C, even if the resistance is infinite. This so-called kT/C noise may dominate in switched-capacitor circuits. In this paper kT/C noise is treated analytically, using explicit and implicit notations of differential equations. The resulting algorithms can be implemented in any circuit simulator with transient analys...

Design Servo System Type and Positioning of Pole Observer Full Rank a Piezoelectric Servo Valve without Integrator

In this paper, the method of modern control approach for the design of controller and observer is used. Other functions such as neural controllers - or fuzzy sliding mode control can be found in this work and the results are compared. First, a dynamic model of the servo valve is intended for the governing equations in state-space form expression are obtained. Due to the system integrator is exp...