A. Nagy

57220668497

Publications - 5

Method for determining direction, velocity and position of a flying ball

A. Nagy

Publication Name: Mechatronics 2013 Recent Technological and Scientific Advances

Publication Date: 2014-01-01

Volume: Unknown

Issue: Unknown

Page Range: 401-408

Description:

This paper proposes an algorithm for an optical measuring system, which is capable of calculating the velocity and position components, the radius and the trajectory of a flying sphere-shape ball. The infrared light-emitting diodes and the IR sensors of the system are arranged in a single plane and create a lattice of infrared light beams. The FPGA based hardware of the system measures the points in time when the light beams are interrupted by the ball. The proposed algorithm uses the measured time-data with the associated positions of the interrupted light beams as input. The practical application such a systems can be measuring ball's velocity in several sports and games. © Springer International Publishing Switzerland 2014.

Open Access: Yes

DOI: 10.1007/978-3-319-02294-9_51

Training electrical engineers on asynchronous logic circuits based on constant weight codes

Gábor Rózsa A. Nagy P. Keresztes L. T. Koczy

Publication Name: IEEE AFRICON Conference

Publication Date: 2011-12-12

Volume: Unknown

Issue: Unknown

Page Range: Unknown

Description:

The paper introduces a new way for teaching of delay insensitive asynchronous logic circuits. The studies start on high level models, which are VHDL implementations of Dennis-type static dataflow systems. Investigating the operation of the concurrent processes of these models, the main elements of the delay insensitive systems can be derived. Introducing constant weight 'm-of-n' codes immediately at the beginning of the course leads to a proper generalization. So the well known dual-rail code circuits can be considered as special cases of the constant weight code delay insensitive circuits. The paper presents briefly the design practice sessions for students. © 2011 IEEE.

Open Access: Yes

DOI: 10.1109/AFRCON.2011.6072041

Active vibration control using DEAP actuator

A. Nagy

Publication Name: Mechatronics Recent Technological and Scientific Advances

Publication Date: 2011-01-01

Volume: Unknown

Issue: Unknown

Page Range: 331-335

Description:

The dielectric electro active polymers actuators (DEAP) have several advantages over the conventional actuators, for example low cost, small weight and silent working. Because of the properties of the polymers, the precise control of this actuator type requires some special considerations. In this paper a dynamic model of a DEAP actuator was created. Additionally a closed loop control of a DEAP actuator in a vibration attenuator application was demonstrated.

Open Access: Yes

DOI: 10.1007/978-3-642-23244-2_41

Optical torque sensor development

A. Nagy P. Horváth

Publication Name: Recent Advances in Mechatronics 2008 2009

Publication Date: 2009-01-01

Volume: Unknown

Issue: Unknown

Page Range: 91-96

Description:

The purpose of this study is to develop a contactless torque sensor in the mNm range. The applied optical method is based on the birefringe effect of photoelastic materials. The novelty of the modified reflective photoelastic method is the application of a photoelastic tube as a coupling and measuring element between shafts. Change in intensity of polarized light is proportional to the torque to be measured. Basics of operational principle and practical considerations are also discussed.

Open Access: Yes

DOI: 10.1007/978-3-642-05022-0_16

Determination of DC micro-motor characteristics by electrical measurements

A. Nagy P. Horváth

Publication Name: Recent Advances in Mechatronics

Publication Date: 2007-12-01

Volume: Unknown

Issue: Unknown

Page Range: 278-282

Description:

It is generally difficult to carry out and measure breaking moments precisely in the mNm range. Instead of traditional methods using brake and additional mechanical elements to determine torque vs. angular velocity characteristics of micro-motors this paper suggest a new procedure based on purely electrical measurements. Theoretical background of the measuring procedure is discussed detailed. The suggested method is shown in the case of a RF300E DC micro-motor. © 2007 Springer-Verlag Berlin Heidelberg.

Open Access: Yes

DOI: 10.1007/978-3-540-73956-2_55