Phase Shift

Some articles on phase, shifts, phase shift:

Phase-shift Oscillator
... A phase-shift oscillator is a linear electronic oscillator circuit that produces a sine wave output ... a transistor or op amp with its output fed back to its input through a phase-shift network consisting of resistors and capacitors ... The feedback network 'shifts' the phase of the amplifier output by 180 degrees at the oscillation frequency to give positive feedback ...
Lattice Phase Equaliser - Design
... If the impedance Z is purely reactive such that Z = iX then the phase shift, φ, inserted by the filter is given by, The prototype lattice filter shown here passes low frequencies without ... That is, it is phase correction for the high end of the band ... At low frequencies the phase shift is 0° but as the frequency increases the phase shift approaches 180° ...
Scanning SQUID Microscopy - Applications
... by a single coherent wavefunction, proportional to exp(-iφ), where φ is known as the phase of the wavefunction, this property can be also interpreted as a phase shift of π under a ... one value at each point, the overall phase factor obtained after traversing the entire Josephson circuit must be an integer multiple of 2π, as otherwise, one would obtain a ... upon crossing the planes in momentum (and real) space, the wavefunction will undergo a phase shift of π ...
Time Stretch Analog-to-digital Converter - Comparison With Time Lens Imaging
... The lens imparts a quadratic phase shift to the spatial frequency components of the optical waves in conjunction with the free space propagation (object to lens ... can be temporally imaged by a three-step process of dispersing it in time, subjecting it to a phase shift that is quadratic in time (the time lens itself), and dispersing it again ... image is obtained under a specific condition when the two dispersive elements and the phase shift satisfy the temporal equivalent of the classic lens equation ...
List Of Dutch Inventions And Discoveries - Inventions - 1933 Phase Contrast Microscope
... other than vacuum, interaction with this medium causes its amplitude and phase to change in a way which depends on properties of the medium ... of light arriving on the retina, so changes in phase are not easily observed, yet often these changes in phase carry a large amount of information ... although the phase variations introduced by the sample are preserved by the instrument (at least in the limit of the perfect imaging instrument) this information is lost in the process which measures the ...

Famous quotes containing the words shift and/or phase:

    “Circumstantial evidence is a very tricky thing,” answered Holmes thoughtfully. “It may seem to point very straight to one thing, but if you shift your own point of view a little, you may find it pointing in an equally uncompromising manner to something entirely different.”
    Sir Arthur Conan Doyle (1859–1930)

    This is certainly not the place for a discourse about what festivals are for. Discussions on this theme were plentiful during that phase of preparation and on the whole were fruitless. My experience is that discussion is fruitless. What sets forth and demonstrates is the sight of events in action, is living through these events and understanding them.
    Doris Lessing (b. 1919)