DETECTION AND LOCATION OF METALLIC OBJECTS IMBEDDED IN NONMETALLIC STRUCTURES
THE PROBLEM IS TO DETECT AND LOCATE, EASILY AND RELIABLY, METAL OBJECTS IMBEDDED IN THE NONMETALLIC WALLS, FLOORS, OR CEILINGS OF A BUILDING OR OTHER STRUCTURE. PRESENT METHODS USE BULKY AND HEAVY MINE DETECTORS WHICH ARE NOT SUITABLE IN CONFINED AREAS. A SOLUTION IS THE USE OF A SMALL BATTERY OPERATED EDDY CURRENT PROXIMITY MEASURING DEVICE THAT WILL DETECT METAL OBJECTS THE SIZE OF A DIME AT DISTANCES UP TO ONE FOOT WITHIN NONMETALLIC STRUCTURAL MEMBERS. SUCH A DEVICE IS BASED ON THE DESIGN OF AN EDDY CURRENT PROXIMITY MEASURING DEVICE DESIGNED TO MEASURE NONDESTRUCTIVELY THE THICKNESS OF SPRAY-ON FOAM INSULATION. THIS DEVICE WEIGHS APPROXIMATELY TWO POUNDS, OCCUPIES APPROXIMATELY 60 CUBIC INCHES, AND IS BATTERY POWERED. /AUTHOR/
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Supplemental Notes:
- No 68-10183, 2 PP
- Publication Date: 1968-6
Media Info
Subject/Index Terms
- TRT Terms: Detectors; Eddy currents; Electric batteries; Electric insulating materials; Foams; Insulating materials; Measurement; Metals; Nonmetals; Sprays (Materials); Structural members; Thickness
- Old TRIS Terms: Detecting devices
- Subject Areas: Energy; Geotechnology; Highways; Materials;
Filing Info
- Accession Number: 00216660
- Record Type: Publication
- Files: TRIS
- Created Date: Sep 16 1994 12:00AM