8]) in the form of two-frequency HeNe lasers are routinely used in heterodyne
interferometry to perform precision length, angular, straightness, flatness, and velocity measurements.
It is worth noting that the heterodyne
phaser can also be obtained by using a two lasers scheme: the two lasers provide the frequency shifted light signals thus avoiding the use of the OFS.
My training instruction was more hands on used to teach and reinforce the skills necessary to operate and maintain the R-390A/URR general coverage HF receiver that uses super heterodyne
principles (for example).
Yngvesson, A passive heterodyne
hot electron bolometer imager operating at 850 gigahertz, IEEE Trans.
, on the other hand, could demodulate the signal from high frequency range to low frequency while maintaining the signal integrity.
a reference frequency synthesizer for all the necessary frequencies (carrier, heterodyne
frequency, repetition frequency, sampling frequency, etc.
Scientists used Herschel's Heterodyne
Instrument for the Far-Infrared (HIFI) on June 22 to look for warm molecular gas heated by newborn massive stars in the DR21 star-forming region in Cygnus.
It carries three scientific instruments, a very high resolution heterodyne
spectrometer, an imaging photometer / medium resolution grating spectrometer and an imaging photometer / imaging Fourier transform spectrometer, designed to take maximum advantage of the characteristics of the Herschel mission.
Bershtein developed a heterodyne
method for frequency fluctuation measurement, enabling his disciples Yu.
Instrument for the Far Infrared (HIFI) operates from 150 to 600 microns.
receivers with one or more intermediate frequency stages offer good channel selectivity and robustness, but they require expensive and bulky off-chip filters resulting in a low degree of integration, high bill-of-material and increased power consumption of on-chip drivers.
And not merely do they wish to preserve these things from the other worldly threat of the heterodyne
(the series of monsters/natural phenomena that menace the peace) but, as becomes plain during the course of the series, the characters are putting forward such a liberal vision as a specific rejection of other, darker social visions.