tần số kế
Definition
- Noun:
- Frequency meter: An instrument used to measure the frequency of an alternating current (AC) electrical signal or an oscillating system, typically expressed in hertz (Hz).
- Tachometer (in specific contexts): In some technical applications, particularly with rotating machinery, it can refer to a device measuring rotational frequency or speed.
Usage Examples
- Noun:
- Kỹ sư dùng tần số kế để kiểm tra tín hiệu phát. (The engineer used a frequency meter to check the broadcast signal.)
- Tần số kế cho thấy động cơ quay ở 3000 vòng/phút. (The frequency meter showed the engine rotating at 3000 RPM.)
Advanced Usage
- "Tần số kế cộng hưởng": A resonant frequency meter, which uses a tuned circuit to measure frequency.
- Tần số kế cộng hưởng thường được dùng trong phòng thí nghiệm. (Resonant frequency meters are often used in the laboratory.)
Variants and Related Words
- Máy đo tần số (n): Another common term for frequency meter.
- Máy đo tần số này có độ chính xác cao. (This frequency meter has high accuracy.)
Synonyms
- Frequency counter: A digital instrument that counts cycles to measure frequency.
- Hertz meter: A meter calibrated to display frequency in hertz.
Related Technical Terms
- Phổ kế (Spectrometer): An instrument for measuring spectra, different from a frequency meter which measures a single frequency value.
- Dao động kế (Oscilloscope): An instrument for viewing signal waveforms, which can also estimate frequency but is not a dedicated frequency meter.