noise_book:noise_modes
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| One common type of noise is an impulse. An impulse is a very short but very large voltage spike. It often occurs when motors start, relays switch on or off, or inductive devices such as coils are energized. | One common type of noise is an impulse. An impulse is a very short but very large voltage spike. It often occurs when motors start, relays switch on or off, or inductive devices such as coils are energized. | ||
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| Even though it lasts only a brief moment, an impulse can cause serious problems. It may reset a controller, lock up a system, or cause equipment to behave unpredictably. | Even though it lasts only a brief moment, an impulse can cause serious problems. It may reset a controller, lock up a system, or cause equipment to behave unpredictably. | ||
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| Another common form of noise appears as a constant disturbance riding on top of a signal or power line. Instead of a single spike, the noise is present all the time. | Another common form of noise appears as a constant disturbance riding on top of a signal or power line. Instead of a single spike, the noise is present all the time. | ||
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| Audio equipment provides another familiar example. When noise enters an audio system, it is often heard as buzzing, humming, or static. | Audio equipment provides another familiar example. When noise enters an audio system, it is often heard as buzzing, humming, or static. | ||
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| The worst situation is when both continuous noise and voltage spikes are present at the same time. Without proper protection, reliable operation becomes very difficult. | The worst situation is when both continuous noise and voltage spikes are present at the same time. Without proper protection, reliable operation becomes very difficult. | ||
noise_book/noise_modes.1781121737.txt.gz · Last modified: by admin