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Filing date
Publication date
Application filed by Radiometer AsfiledCriticalRadiometer As
Publication of DK182375ApublicationCriticalpatent/DK182375A/da
G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
G01P3/42—Devices characterised by the use of electric or magnetic means
G01P3/56—Devices characterised by the use of electric or magnetic means for comparing two speeds
G01P3/60—Devices characterised by the use of electric or magnetic means for comparing two speeds by measuring or comparing frequency of generated currents or voltages
G—PHYSICS
G11—INFORMATION STORAGE
G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
G11B27/36—Monitoring, i.e. supervising the progress of recording or reproducing