Document Type and Number:
Japanese Patent JPS5534384
Kind Code:
B2
Abstract:
A speed measurement system for converting signal pulses directly into a 13 bit binary number for input to a digital processor is disclosed. The signal pulses are generated as a function of incremental shaft rotation. A plurality of additional pulses are injected in the pulse train between successive displacement or signal pulses, such that a stream of equally spaced pulses is produced at a predetermined speed. The number of generated displacement and injected pulses are counted during predetermined time intervals for providing a direct speed measurement.
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Application Number:
JP12506476A
Publication Date:
September 06, 1980
Filing Date:
October 20, 1976
Export Citation:
International Classes:
F01D17/24; E21B41/06; G01P3/48; G01P3/489