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mechanical filter

   Also found in: Wikipedia 0.06 sec.
mechanical filter [mi′kan·ə·kəl ′fil·tər]
(electronics)
Filter, used in intermediate-frequency amplifiers of highly selective superheterodyne receivers, consisting of shaped metal bars, rods, or disks that act as coupled mechanical resonators when used with piezoelectric or magnetostrictive input and output transducers and coupled by small-diameter wires. Also known as mechanical wave filter.
(petroleum engineering)
Granule-packed steel shell used to filter suspended floc or undissolved solids out of treated waterflood water; granules can be graded sand and gravel, anthracite coal, graphitic ore, or aluminum-oxide plates with granular filter medium.


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The company's electrostatic oil cleaner system is said to provide indefinite oil life for hydraulic injection molding machines by removing all insoluble contaminants, including sludge and varnish that ordinary mechanical filters miss, to eliminate oil-change downtime and greatly reduce process variation and scrap rates.
An ultra-small fiber used in manufacturing HEPA/ULPA-class mechanical filters, biosoluble glass microfiber is ideal for products for manufacturers conforming to ASHRAE standards.
 
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