FIELD: measurement technology. SUBSTANCE: pickup of rotational speed has body in the form of hollow sleeve, cover, rotor with permanent magnet and pulse former. Pulse former includes electromagnetic coil embraced with claw-shaped elements and board with electron elements and leads electrically connected to board. Former is assembled in one body fabricated in the form of hollow ring of rectangular shape inside which coil is installed. Body of former is provided with edges made as continuation of ring cylindrical walls. Board is put between edges. Free ends of edges are hermetically matched with flat circuit cover of former. Relative positions of specified elements and their making allow dimensions of pickup to be decreased while keeping elements sensitive to corrosive media sealed. EFFECT: reduced dimensions with keeping of operational characteristics. 2 dwg
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|---|---|---|---|
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