Probe coil for detecting nqr-responsive materials in large volumes

A coil assembly ( 11 ) comprising two coil sections ( 13 a and 13 b). Each of the sections ( 13 ) consists of a combination of a spiral coil ( 15 ) having a variable coil pitch arranged in a saddle shape configuration. The saddle shape has a central portion ( 17 ) and a pair of outer coextending por...

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Bibliographische Detailangaben
Hauptverfasser:	HAYES PETER A, CHISHOLM WARRICK P, RUDAKOV TARAS N, MIKHALTSEVITCH VASSILI T, FLEXMAN JOHN H
Format:	Patent
Sprache:	eng
Schlagworte:	DETECTING MASSES OR OBJECTS GEOPHYSICS GRAVITATIONAL MEASUREMENTS MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS TESTING
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Beschreibung
Zusammenfassung:	A coil assembly ( 11 ) comprising two coil sections ( 13 a and 13 b). Each of the sections ( 13 ) consists of a combination of a spiral coil ( 15 ) having a variable coil pitch arranged in a saddle shape configuration. The saddle shape has a central portion ( 17 ) and a pair of outer coextending portions ( 19 ). The coil sections ( 13 ) are located opposite each other with the central portions ( 17 ) of the respective sections disposed in parallel spaced apart relationship and the corresponding coextending portions ( 19 ) of the respective sections disposed in coplanar alignment with each other so that the sections combine to circumscribe a scanned volume within which the target substance is to be disposed.