phổ kí
Definition
- Noun (Physics):
- Spectrograph: An optical instrument used to record a spectrum, typically by photographing or otherwise detecting the distribution of light (or other electromagnetic radiation) across different wavelengths.
Usage Examples
- Noun:
- Nhà khoa học sử dụng phổ kí để phân tích thành phần của ngôi sao. (The scientist uses a spectrograph to analyze the composition of the star.)
- Phổ kí là một công cụ quan trọng trong quang phổ học. (The spectrograph is an important tool in spectroscopy.)
Advanced Usage
- The term is a compound noun specific to scientific Vietnamese, formed from "phổ" (spectrum) and "kí" (to record). It is used almost exclusively in technical contexts related to physics, astronomy, and chemistry.
Variants and Related Words
- Phổ kế (n): Spectrometer. An instrument for measuring properties of light over a specific portion of the spectrum.
- Máy quang phổ (n): Spectroscope/Spectrometer. A more general term for optical instruments used to observe or measure spectra.
Synonyms
- Spectrograph: The direct and most accurate English equivalent.
- Spectrum recorder: A descriptive synonym.
Notes on Usage
- "Phổ kí" is a highly specialized technical term. It is not used in everyday conversation.
- In many contexts, the more general terms "máy quang phổ" or "phổ kế" may be encountered. While related, they are not perfect synonyms, as they refer to slightly different instruments or functions.