Phase angle definitions

Phase angle

is the elongation or angle between a orbiting body and the Sun as viewed from a particular perspective such as the Earth. It determines the amount of a planet or moon's visible surface that lies in shadow. Inferior planets such as Venus generally have a low phase angle as seen from Earth, so they are often viewed as a crescent. Superior planets su...
Found on http://en.wikipedia.org/wiki/Glossary_of_astronomy

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Phase angle

In the context of periodic phenomena, such as a wave, phase angle is synonymous with phase. ...
Found on http://en.wikipedia.org/wiki/Phase_angle

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Phase angle

[astronomy] Phase angle in astronomical observations is the angle between the light incident onto an observed object and the light reflected from the object. In the context of astronomical observations, this is usually the angle Sun-object-observer. For terrestrial observations, `Sun–object–Earth` is often nearly the same thing as `Sunâ...
Found on http://en.wikipedia.org/wiki/Phase_angle_(astronomy)

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Phase angle

• The angle expressing phase relation.
Found on http://thinkexist.com/dictionary/meaning/phase_angle/

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Phase angle

The angle in which waves come to a body.
Found on http://www.braeunig.us/space/glossary.htm

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phase angle

(from the article `phase`) ...for the hands of a clock is at the numeral 12, and the minute hand has a period of one hour. At a quarter past the hour the minute hand has a ... The phase angle in equation (29) gives the time relationship between the current in the circuit and the driving electromotive force, 0 cos(). The ... [2 relat...
Found on http://www.britannica.com/eb/a-z/p/54

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phase angle

For an object in the solar system, the angle 'Sun-object-Earth' that is, the angle between the Sun and the observer as seen from the given object. It is 0° when the object is fully illuminated, 90° when the object is half-illuminated (like the Moon at first quarter and last quarter), and 180...
Found on http://www.daviddarling.info/encyclopedia/P/phase_angle.html

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phase angle

for a linear time-invariant system with sinusoidal input variable in steady state the phase difference between the phase of the output variable and the phase of corresponding input variable
Found on http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=351-24-37

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phase angle

the electrical angle between the instantaneous zero voltage applied to the anode of a thyristor or an ignitron and the point at which it conducts in each half cycle
Found on http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=851-02-25

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Phase angle

angle at which the steady state input signal leads the output signal.
Found on http://www.empiremagnetics.com/glossary/glossary.htm#A

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phase angle

<microscopy> The angular equivalent of the time displacement between corresponding points on two sine waves of the same frequency. ... (05 Aug 1998) ...
Found on http://www.encyclo.co.uk/local/20973

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Phase angle

Phase angle (Electricity) The angle expressing phase relation.
Found on http://www.encyclo.co.uk/webster/P/70

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Phase Angle

The angular displacement between a current and voltage waveform, measured in degrees or radians.
Found on http://www.youngco.com/young2.asp?ID=4&Type=3

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phase angle

noun a particular point in the time of a cycle; measured from some arbitrary zero and expressed as an angle
Found on https://www.encyclo.co.uk/local/20974

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