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单词 phase angle
释义

Definition of phase angle in English:

phase angle

noun
Physics
  • 1A phase difference expressed as an angle, 360 degrees (2π radians) corresponding to one complete cycle.

    Example sentencesExamples
    • Quadrature Amplitude Modulation uses a combination of phase angles and amplitude to code digital information on an analog sine wave signal.
    • Time-resolved anisotropy measurements are obtained from the frequency-dependent phase angle difference between the parallel and perpendicular components of the modulated fluorescence emission.
    • The phase angle 8 defines the relative contributions of viscous and elastic resistances to particle motion and can be computed from the slope of Gd versus frequency.
    • Experimental data in the frequency domain lifetime measurements are usually presented as increasing values of the frequency-dependent phase angle ([Phi]) and decreasing values of the modulation.
    • Given that the field oscillates at 60Hz, this gives me a phase angle of 0.4PI radians between samples.
    1. 1.1Astronomy The angle between the lines joining a given planet to the sun and to the earth.
      Example sentencesExamples
      • In astronomy, many light curve measurements are done at near zero phase angles (in opposition) because the scattering surface area of the measured object is largest.
      • The left image is from a phase angle of only 6 degrees, and Janus appears bright because nearly its entire visible surface is reflecting light.
      • Ring structures containing these tiny particles brighten substantially at high phase angles: i.e., viewing angles where the Sun is almost directly behind the objects being imaged.
 
 

Definition of phase angle in US English:

phase angle

nounfāz ˈaNGɡəl
Physics
  • 1An angle representing a difference in phase, 360 degrees (2π radians) corresponding to one complete cycle.

    Example sentencesExamples
    • Time-resolved anisotropy measurements are obtained from the frequency-dependent phase angle difference between the parallel and perpendicular components of the modulated fluorescence emission.
    • Quadrature Amplitude Modulation uses a combination of phase angles and amplitude to code digital information on an analog sine wave signal.
    • Given that the field oscillates at 60Hz, this gives me a phase angle of 0.4PI radians between samples.
    • The phase angle 8 defines the relative contributions of viscous and elastic resistances to particle motion and can be computed from the slope of Gd versus frequency.
    • Experimental data in the frequency domain lifetime measurements are usually presented as increasing values of the frequency-dependent phase angle ([Phi]) and decreasing values of the modulation.
    1. 1.1Astronomy The angle between the lines joining a given planet to the sun and to the earth.
      Example sentencesExamples
      • Ring structures containing these tiny particles brighten substantially at high phase angles: i.e., viewing angles where the Sun is almost directly behind the objects being imaged.
      • In astronomy, many light curve measurements are done at near zero phase angles (in opposition) because the scattering surface area of the measured object is largest.
      • The left image is from a phase angle of only 6 degrees, and Janus appears bright because nearly its entire visible surface is reflecting light.
 
 
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更新时间:2025/1/11 6:27:16