Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Joris Adelbert Maria Nieuwendijk"'
Autor:
Gerrit Frederik Magdalena De Poortere, Guido Odilon Maurits D'Hoogh, Joris Adelbert Maria Nieuwendijk, Martinus Petrus Maria Van De Thillart
Publikováno v:
The Journal of the Acoustical Society of America. 105:22
A sound-reproducing apparatus comprises an acoustic horn (10) which terminates in an opening (15) in the wall (5) of the apparatus. An obstacle (23) is arranged in the acoustic duct (11) of the horn (10), which provides a better frequency response.
Publikováno v:
The Journal of the Acoustical Society of America. 101:1220
A silencer arrangement for a combustion engine (1) whose exhaust gases are discharged via an exhaust pipe (3) comprises a microphone (9), a tachometer (11) for the engine speed, a control unit (13) and a loudspeaker enclosure (19). The loudspeaker en
Autor:
Frans Alexander Westra, Johannes Wilhelmus Theodorus Bax, Johannes Josephus Martines Kamphues, Joris Adelbert Maria Nieuwendijk
Publikováno v:
The Journal of the Acoustical Society of America. 96:1943-1943
A loudspeaker system includes a housing (1) having therein at least one loudspeaker (3) which divides the volume of the housing into two parts (V 1 , V 2 ). The first volume (V 1 ) is coupled, via an aperture in the housing (1), to an acoustic tube (
Publikováno v:
The Journal of the Acoustical Society of America. 87:931-931
An electrodynamic transducer (1) comprises a diaphragm with a central part (2) and a peripheral part (3) and a voice-coil device (9, 10) coupled to the central part (2). The diaphragm (2, 3) cooperates with an enclosed volume (6), the enclosed volume
Autor:
Gijsel Wilhelmus Dominicus A. M. Van, Georgius Bernardus Josef Sanders, Joris Adelbert Maria Nieuwendijk
Publikováno v:
The Journal of the Acoustical Society of America. 80:370-371
The invention relates to a ribbon-type electro-acoustic transducer comprising a magnet system having a pole plate (2,3) and a centre pole (1) between which at least one air gap (8) is formed and a diaphragm (7) arranged in the air gap (8). The diaphr
Publikováno v:
The Journal of the Acoustical Society of America. 78:2163-2163
A ribbon-type electro-acoustic transducer has a magnet system which comprises an upper plate (2, 3) and a center pole (1) between which an air gap (8) is formed. A diaphragm (7) on which conductors (9) are arranged is disposed in the air gap. The upp