A DEVICE FOR MEASURING THE ROTATIONAL SPEED OF A SHAFT

A device for high resolution measurement of frequency of a sinusoidal signal generated by a signal generator using an analog to digital converter to digitize the signal at an adjustable sampling frequency for a period defined by a given zero transition. The frequency is proportional to the number of...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	HELMUT GIMMLER
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT MEASURING MEASURING ELECTRIC VARIABLES MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK MEASURING MAGNETIC VARIABLES MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR PHYSICS TARIFF METERING APPARATUS TESTING
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Beschreibung
Zusammenfassung:	A device for high resolution measurement of frequency of a sinusoidal signal generated by a signal generator using an analog to digital converter to digitize the signal at an adjustable sampling frequency for a period defined by a given zero transition. The frequency is proportional to the number of samples taken within the measured period adjusted by a mathematical relationship between the absolute values of the sampled signal before and after the zero transition.