Phase Shift

Some articles on phase shift, phase, shifts:

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 ... 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 ...
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° ...
List Of Dutch Inventions And Discoveries - Inventions - 1933 Phase Contrast Microscope
... travels through a medium other than vacuum, interaction with this medium causes its amplitude and phase to change in a way which depends on properties of ... only the energy 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 ...
Phase-shift Oscillator
... A phase-shift oscillator is a linear electronic oscillator circuit that produces a sine wave output ... element such as 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 ...
Scanning SQUID Microscopy - Applications
... 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 90 degree rotation ... As the wavefunction must have only one value at each point, the overall phase factor obtained after traversing the entire Josephson circuit must be an integer multiple of 2π, as ... space, the wavefunction will undergo a phase shift of π ...

Famous quotes containing the words shift and/or phase:

    I will use the world and sift it,
    To a thousand humors shift it,
    As you spin a cherry.
    Ralph Waldo Emerson (1803–1882)

    It no longer makes sense to speak of “feeding problems” or “sleep problems” or “negative behavior” is if they were distinct categories, but to speak of “problems of development” and to search for the meaning of feeding and sleep disturbances or behavior disorders in the developmental phase which has produced them.
    Selma H. Fraiberg (20th century)