Acoustic oscillator with electronic feed-back including non-linear control
(2010)
Abstract:
An acoustic oscillator arrangement includes an acoustic system having at least one acoustic transmission path through it, and at least one mode. The acoustic transmission path is of variable length. A controller is provided with an amplifier and a feedback network which together provide a positive …All-linear time reversal by a dynamic artificial crystal
NATURE COMMUNICATIONS 1 (2010) ARTN 141
Delay-line self-oscillator
(2010)
Abstract:
An electrical, magnetic or electromagnetic delay line self oscillator is described with a delay line arrangement, an oscillator control circuitry, and a frequency selection impedance connecting the delay line arrangement and the oscillator control circuitry and presenting an impedance to the delay …Mechanical oscillator
(2010)
Abstract:
A mechanical oscillator arrangement includes a mechanical structure (30) having at least one transmission path through it, and at least one mode. A controller (40) is provided with an amplifier (70) and a feedback network (80, 90) which together provide a positive feedback oscillator for exciting …Electromagnetic field-based position sensor
(2009)