Caption: Figure 8: Control input in sinusoidal wave
The difference between using only a sinusoidal wave
and several harmonics looks subtle, but the result is remarkable.
In most cases it is assumed that the electrical current and voltage have a sinusoidal wave
Because of difficulties in precisely evaluating the absolute sensitivity in the frequency range of several tens of kHz, we inputted a sinusoidal wave
from a PZT transmitter to a thin (t = ~20 mm) rock specimen and observed the output.
Using a 386 computer, operators program the requisite carriage parameters for their study, such as constant speed, sinusoidal wave
pattern, or elliptical orbits.
The brushless d-c stator runs on a trapezoid waveform, while the a-c stator is designed to run on a sinusoidal wave
included in her studies characteristics like "waveshape" (varying from the pure tone of a sinusoidal wave
to the ragged buzz of random fluctuations) and loudness.
This oscillation system teaches the visitors how circular motion can be converted into sinusoidal wave
in graphical view.
If the fundamental frequency is 50 Hz, then the second harmonic is a sinusoidal wave
of 100 Hz, the fifth harmonic is a sinusoidal wave
of 250 Hz and so on.
if, as part of the command strategy, the sinusoidal reference wave is replaced by a modified sinusoidal wave
(discontinuous command techniques DPWM) , described in (5)
Look-in table and the D/A converter are replaced by the generator in which n samples of the sinusoidal wave
form are generated.
The DFS is built on the proven platform of the Resolute Integrity(TM) DES with Continuous Sinusoid Technology (a unique Medtronic method of stent manufacturing that forms one single strand of wire into a sinusoidal wave
enabling a continuous range of motion), as well as the next-generation Resolute Onyx(TM) DES with CoreWire Technology that allows it to have a denser core metal surrounded by a cobalt alloy outer layer for thinner struts with enhanced radiopacity (visibility during imaging).