Abstract
We have investigated the operating frequency of aluminium nitride thin film transducers up to 350 MHz. A sample consisting of 44 different sized devices (0.25-9 mm ) was fabricated. Each dev...
Abstract
Recent criticisms by Rao about impulse energy approximation are answered in detail. Further ideas are put forward as to how weighted energy parameters may be used to determine the reduced mo...
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Uploaded: Publication Date: Feb 1987
Abstract
A general circuit configuration is developed from Wien's bridge which includes two previously described allpass filters. The rate at which the phase changes with frequency may be widely vari...
Abstract
A general circuit configuration is developed from Wien's bridge which includes two previously described allpass filters. The rate at which the phase changes with frequency may be widely vari...
Abstract
Bandpass transfer functions are obtained from an active circuit using Wien's bridge and a single operational amplifier. The Q factor is controllable by a single resistance independently of t...
Abstract
Bandpass transfer functions are obtained from an active circuit using Wien's bridge and a single operational amplifier. The Q factor is controllable by a single resistance independently of t...
Abstract
A general circuit configuration is developed from Wien's bridge which includes two previously described allpass filters. The rate at which the phase changes with frequency may be widely vari...
Abstract
Bandpass transfer functions are obtained from an active circuit using Wien's bridge and a single operational amplifier. The Q factor is controllable by a single resistance independently of t...