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Magnetic issues of a haptic keyboard

Horváth P., Törőcsik D.

Przegląd Elektrotechniczny

2013

R. 89, nr 2b

61--63

Haptic keyboards bring the same touch sensation for pianists such acoustic grand pianos. One of the main parts of a haptic device is the actuator, that exerts fairly high and fast changing force. This paper presents the design issues of a voice coil motor type actuator assembly. Magnetic field simulations are carried out to investigate the interaction between actuator units.

W artykule opisano proces montażu cewki dźwiękowej w siłowniku, na potrzeby keyboardów do tworzenia muzyki z klawiaturami dotykowymi. Na podstawie badań symulacyjnych pola magnetycznego każdego z siłowników, dokonano analizy ich wzajemnego oddziaływania.

A method of the magnetic field formation in cyclotron DC-72

Gulbekian G., Ivanenko I., Filatov O., Franko J., Kukhtin V., Lamzin E., Samsonov E., Semchenkov A., Semchenkova O., Sytchevsky S. E., Dmitrev S. N.

Nukleonika

2003

Vol. 48, nr 4

207-210

A method of the magnetic field formation in the cyclotron DC-72 model (scale 1:5) is described. The cyclotron is planned to be built in Slovakia. The stages in the shimming of the cyclotron sectors and an automatic system designed for magnetic measurements are described. The data on the magnetic field measurements in the median plane of the cyclotron are presented. A brief description of a computer simulation model and an algorithm of fitting the required sector profiles is presented, as well as the data on the computer simulation of magnetic field distributions. The data on the magnetic field measurements and those on the computer simulations are compared and analyzed. Possible reasons of differences between the measured and simulated data are discussed. The results of the above mentioned computer simulations will be used for building a large facility - the cyclotron DC-72.