Piezo-electric resonant vibrator for a selective call receiver
作者： Irving H. Holden , Charles W. Mooney
DOI:
关键词: Restoring force 、 Piezo electric 、 Acoustics 、 Excitation signal 、 Magnet 、 Planar 、 Shunt generator 、 Armature (electrical engineering) 、 Engineering 、 Electrical engineering
摘要: A piezo-electric resonant vibrator is described comprising a armature having centrally located weight, and at least four planar circular spring members which provide restoring force normal to the movement of weighted within non-magnetic housing encloses supports armature. driver coupled for inducing predetermined frequency. ferromagnetic plate mounted magnetically couples magnet weight maintain tension on when an excitation signal not supplied driver, equilibrium.
lens.org 参考文章(7)
Laszlo Kiss, Karoly Halmai, Laszlo Csillag, Laszlo Miskolczi, Linearly moving or rotated flat armature for motor and pulling magnets ,(1976)
Robert E. Carter, Torsional vibration drive ,(1988)
Werner Kunz, Walter Voigt, Piezoelectric vibration exciter, especially for destructive material testing The Journal of the Acoustical Society of America. ,vol. 79, pp. 1643- 1643 ,(1986) , 10.1121/1.393244
Takeshi Masuda, Piezoelectric vibration generator and vibratory parts feeder incorporating the same Journal of the Acoustical Society of America. ,vol. 91, pp. 542- 542 ,(1989) , 10.1121/1.402694
Koji Yamasaki, Paging receiver having audible and vibrator annunciating means ,(1987)
Masaaki Akahori, Yoshio Ichikawa, Paging receiver having a plurality of test modes ,(1983)
Macblane James H, ELECTRIC MAGNETIC VIBRATOR ,(1970)