Filter
Filters are found in many different fields. For example, in electronics they are electrical circuits for attenuating certain frequencies from a signal, and in fluid systems they are devices for separating media (also see Valve /strainer).
Filters are found in many different fields. For example, in electronics they are electrical circuits for attenuating certain frequencies from a signal, and in fluid systems they are devices for separating media (also see Valve /strainer).