Noun
/ˈθɜːrməl nɔɪz/
Thermal noise refers to the random electrical noise generated by the thermal agitation of charge carriers (usually electrons) in an electrical conductor at a given temperature. It is a fundamental limitation in electronic systems, primarily in resistors, and is significant when considering the performance of amplifiers and other sensitive electronic devices.
Frequency of Use: The term is frequently used in technical, scientific, and engineering contexts, particularly in discussions related to electronics, physics, and telecommunications rather than in casual oral speech.
The engineer explained how thermal noise affects the performance of the circuit.
Инженер объяснил, как тепловой шум влияет на работу схемы.
He calculated the thermal noise level at different temperatures to optimize the sensor design.
Он рассчитал уровень теплового шума при различных температурах, чтобы оптимизировать конструкцию датчика.
Understanding thermal noise is crucial for designing high-sensitivity receivers.
Понимание теплового шума имеет решающее значение для проектирования высокочувствительных приемников.
The phrase "thermal noise" itself does not have a wide range of idiomatic expressions associated with it. However, it interacts with several technical terminologies and concepts. Here are some example sentences combining it with related idiomatic contexts found in engineering or scientific discussions:
To mitigate thermal noise, the engineers calibrated the amplifier's gain.
Чтобы уменьшить тепловой шум, инженеры откалибровали усилитель.
After years of research into thermal noise, the team finally found a way to minimize its impact.
После многих лет исследований теплового шума команда наконец-то нашла способ минимизировать его влияние.
When it comes to thermal noise, every degree in temperature makes a difference.
Когда речь идет о тепловом шуме, каждая степень температуры имеет значение.
The term "thermal" originates from the Greek word "thermos," meaning "heat." "Noise" comes from the Latin word "nausea," which denotes "a disturbance." Together, "thermal noise" literally references the "random disturbances caused by heat."
Synonyms: - Johnson-Nyquist noise (specific type of thermal noise) - Brownian noise (related to particles' motion)
Antonyms: - Signal (as thermal noise is often considered unwanted interference in signal processing) - Silence (absence of noise)
In summary, thermal noise is a crucial concept in electronics and physics with specific implications for electronic circuit design and performance analysis. While its usage is not idiomatic in everyday conversation, it is essential in technical contexts, representing a fundamental aspect of electronic system behavior influenced by temperature and material properties.