A ceramic composite filter has been developed which uses depth filtration for particle capture. The advantages of composite fiber-based filtration are presented as part of an overview of filtration ...

RP Sallen and EL Key of the Massachusetts Institute of Technology’s Lincoln Laboratory in 1955 introduced the Sallen-Key analog filter topology. Engineering literature extensively discusses the second ...

The low-cost composite passive filter in this Design Idea requires no dc power and can enhance the performance of audio equipment and instrumentation by rejecting power-supply hum and spurious pickup ...

Filtron uses changeable anti-allergen filters creating a three-layer composite filter, initial anti-bacterial cloth, high efficiency HEPA, activated carbon cotton layer and cold catalyst filters and ...