Definition

1. Noun:
   • A particular point in the time of a cycle; measured from some arbitrary zero and expressed as an angle: In physics and engineering, especially in the study of waves and oscillations, a phase angle is a numerical value that describes a specific stage or position within a repeating cycle. It is measured as an angle (typically in degrees or radians), where 360° (or 2π radians) represents one complete cycle.

Usage Examples

• Noun:
  • The engineer calculated the phase angle between the voltage and current waveforms.
  • A phase angle of 90 degrees indicates that one wave is a quarter-cycle ahead of another.
  • In this diagram, the phase angle is measured from the point where the cycle crosses zero.

Advanced Usage

• "Phase angle difference": The angular separation between the phase angles of two periodic signals.
  • The motor's efficiency depends on minimizing the phase angle difference.
• "Phase angle measurement": The act or process of determining the phase angle.
  • Accurate phase angle measurement is crucial for power system analysis.

Variants and Related Words

• Phase (n): A distinct stage in a process of change or development. In wave physics, it more specifically refers to the position of a point in time on a waveform cycle.
• Phase Shift (n): A change in the phase angle of a periodic signal.
  • The capacitor causes a phase shift in the circuit.

Synonyms

• Phase offset
• Phase

Related Phrases

• "Lagging phase angle": A phase angle that indicates one signal is behind another in time.
  • An inductive load creates a lagging phase angle for the current.
• "Leading phase angle": A phase angle that indicates one signal is ahead of another in time.
  • A capacitive load creates a leading phase angle.

Noun

1. a particular point in the time of a cycle; measured from some arbitrary zero and expressed as an angle