FIELD: physics.
SUBSTANCE: accelerometre has an inertial mass on elastic suspensions, a position sensor, a cover, a base, two permanent magnets, a comparator, a switch and a direct current source. The inertial mass is made from monocrystalline silicon in form of a disc with optical slits and is placed on the elastic suspensions in the gap between the permanent magnets. Current-conducting paths are radially deposited on the surface of the inertial mass, where the beginning and ends of the said paths are connected to each other by deposited current-conducting rings. Each of the rings is connected by current conductors through the elastic suspensions to the output of the switch, whose first input is connected to the direct current source and the second input is connected to the output of the comparator, whose input is connected to outputs of photodetectors, and radiators are connected to the direct current source. The magnets are mounted on the base and cover. The position sensor is made from two radiators and two photodetectors.
EFFECT: invention increases accuracy and widens the frequency range of the measured acceleration.
2 dwg
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Authors
Dates
2010-09-20—Published
2009-04-28—Filed