nửa sóng
Bộ chỉnh lưu nửa sóng chỉ cho phép một nửa chu kỳ của dòng điện xoay chiều đi qua.
Definition
- Noun (Physics / Telecommunications):
- Half-wave: A single, complete half of a wave cycle, measured from the point where the wave crosses the zero axis to the next point where it crosses the zero axis in the same direction. It is a fundamental concept in the analysis of alternating current (AC), radio waves, and antenna design.
Usage Examples
- Noun:
- Bộ chỉnh lưu nửa sóng chỉ cho phép một nửa chu kỳ của dòng điện xoay chiều đi qua. (A half-wave rectifier allows only one-half of the AC cycle to pass through.)
- Ăng-ten nửa sóng là loại ăng-ten cơ bản có chiều dài bằng một nửa bước sóng của tần số hoạt động. (A half-wave antenna is a basic antenna type with a length equal to half the wavelength of the operating frequency.)
Advanced Usage
- "Bộ chỉnh lưu nửa sóng" (Half-wave rectifier): An electrical circuit that converts alternating current (AC) to pulsating direct current (DC) by allowing only one half of the AC waveform to pass.
- "Ăng-ten lưỡng cực nửa sóng" (Half-wave dipole antenna): A fundamental and common antenna consisting of two conductive elements, each one-quarter wavelength long, making a total electrical length of half a wavelength.
Variants and Related Words
- Bước sóng (n): Wavelength. The physical length of one complete cycle of a wave.
- Chu kỳ sóng (n): Wave cycle. One complete sequence of a wave's pattern.
- Toàn sóng (n): Full-wave. Pertaining to an entire wave cycle, as in a full-wave rectifier.
Synonyms
- Half-cycle: Another term emphasizing it is half of a complete oscillation.
- Demi-onde: The French-derived technical term, equivalent to half-wave.
Related Technical Terms
- Hiệu chỉnh nửa sóng (Half-wave correction): A correction factor applied in certain physics and engineering calculations.
- Độ dài nửa sóng (Half-wave length): Specifically refers to the physical length corresponding to a half-wave at a given frequency.