Magnetostrictive sensor for measuring distances

A magnetostrictive sensor system (30) and a method of measuring a magnetostrictive sensor pulse (26) is provided. The measurement system and method includes providing a digital buffer circuit connected with an analog to digital converter to an analog waveform detector for receiving a magnetostrictiv...

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Bibliographische Detailangaben
1. Verfasser:	SOUTHWARD STEVE C.,JOLLY MARK R.,FERGUSON MATTHEWK.,FOWLER LESLIE P
Format:	Patent
Sprache:	eng
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS CALCULATING COMPUTING COUNTING DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ELECTRIC DIGITAL DATA PROCESSING HOROLOGY LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING MEASURING ANGLES MEASURING AREAS MEASURING ELECTRIC VARIABLES MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS MEASURING MAGNETIC VARIABLES MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TARIFF METERING APPARATUS TESTING TIME-INTERVAL MEASURING
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Beschreibung
Zusammenfassung:	A magnetostrictive sensor system (30) and a method of measuring a magnetostrictive sensor pulse (26) is provided. The measurement system and method includes providing a digital buffer circuit connected with an analog to digital converter to an analog waveform detector for receiving a magnetostrictive pulse waveform from a magnetostrictive waveguide. A template waveform (48) is provided, and a returned magnetostrictive pulse waveform is received into the digital buffer circuit. The received pulse waveform is compared with the template waveform to determine an arrival time of the returned magnetostrictive pulse waveform. Providing the template waveform includes providing a synthesized return waveform generated to simulate a characteristic magnetostrictive return pulse waveform of the magnetostrictive system. The magnetostrictive sensor system includes a magnetostrictive waveguide (40), an analog waveform detector (24) for receiving a magnetostrictive pulse waveform from the magnetostrictive waveguide, a comparing correlating processor with a template waveform for comparing the received magnetostrictive pulse waveform with the template waveform to determine an arrival time of the returned magnetostrictive pulse waveform.