WIND VELOCITY RELAY Russian patent published in 1997 - IPC

FIELD: measurement technology. SUBSTANCE: invention is meant for use as sensor of systems of antiemergency automatics and warning signalization. Anemometric impeller wheel is manufactured in the form of centrifugal converter with cap-shaped weights-wind detectors. Permanent magnet is attached to outer surface on one of them. Winding of immobile hermetically, sealed reed relay is connected through its contact to source of constant voltage. Thanks to this permanent magnet will cause operation of contacts of hermetically sealed reed relay only when wind velocity reaches certain value and when centrifugal force will move trajectory of magnet to area of location of hermetically sealed reed relay. Contacts of hermetically sealed reed relay will retain closed owing to connection of its winding in agreement with self-latching circuit. EFFECT: simplified design, increased functional reliability and stability. 3 dwg