Noise Index

Views Updated: Dec 15, 2025

Abbreviation

Pronunciation

/nɔɪz ˈɪndɛks/

The engine is the heart of car, each cylinder work uniformity differences can great effect of the car performance, fuel consumption and emission and noise index.
Combined effect of traffic noise index evaluation method is the evaluation on the subjective annoyance value of residents to traffic noise.
Adopting frequency-mixed PLL scheme, the frequency dividend ratio in loop is greatly reduced; choosing components with low phase noise, and using comb spectrum generator instead of traditional big step loop, low phase noise index is achieved in output.
Proper arrangement of them significantly reduces the energy consumed and noise level and ensures the input power and noise index, solves the problem of insufficient air volume supplied, and improves the indoor thermal comfort effectively.
The noise index of YKK Series, which are the main export parts to power station ( including nuclear power station ), is an important competitive factor in international market.

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