Browsing by Subject "interferencja"

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Concept of vibration sensor based on interference of ultrasonic waves
(Data obrony: 2020-01-23) Gocyk, Michał
Wydział Inżynierii Mechanicznej i Robotyki
Access status: Open Access ,
Professor Wojciech Rubinowicz's contribution to the development of active methods of vibration control
(Wydawnictwa AGH, 2007) Engel, Zbigniew
World known Polish scientist, physicist Professor Wojciech Rubinowicz (1889-1974) contributed immensely to the development of the theory of active methods of noise reduction. Prof. W. Rubinowicz was dealing mainly with optical phenomena, however it should be emphasised, that light waves and acoustic phenomena can be described by similar theoretical equations. Already in 1917 W. Rubinowicz developed the theory of the edge wave, which later on was named the Rubinowicz Edge Wave. He proved the equivalence of Fresnel's and Young's ideas concerning diffraction phenomena. He developed the mathematical description of the Kirchhoff's diffraction theory. Phenomena of mutual interference of light waves incident on screen edge and the effect in the form of wave compensation in certain zones were described. An incident wave on the screen surface (edge) can compensate itself with the wave of the same structure but phase shifted by ? angle, which can cause the total extinction of light. Works of the Polish scientist, which constituted the new approach to the wave phenomena can be considered the starting point in the development of the active method theory.