Short range ultrasonic measurement

A system has an actuator with a first surface and a second surface, the first surface being offset a step dimension from the second surface. A sensor is configured to measure a distance between the sensor and both the first surface and the second surface via a signal received by the sensor after hav...

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Bibliographische Detailangaben
1. Verfasser:	Rhoden, William E
Format:	Patent
Sprache:	eng
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING
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Beschreibung
Zusammenfassung:	A system has an actuator with a first surface and a second surface, the first surface being offset a step dimension from the second surface. A sensor is configured to measure a distance between the sensor and both the first surface and the second surface via a signal received by the sensor after having reflected off the first surface or the second surface. The step dimension is greater than a minimum dimension, which is defined in view of a medium through which the actuator moves and a frequency of the signal.