Handheld scanning subsurface detector

• US 20060255789A1
• Filed: 04/03/2006
• Published: 11/16/2006
• Est. Priority Date: 05/10/2005
• Status: Abandoned Application

• Current Assignee: Hilti Aktiengesellschaft (Hilti Martin Family Trust)
• Original Assignee: Hilti Aktiengesellschaft (Hilti Martin Family Trust)
• Inventors: Wuersch, Christoph, Kaneider, Wilfried
• Application Number:
  US11/397,591
• Publication Number:
  US 20060255789A1
• Time in Patent Office: Days
• US Class Current: 324/67
• CPC Class Codes: G01V 3/15 specially adapted for use during transport, e.g. by a person, vehicle or boat

Abstract

A handheld scanning subsurface detector (1) has a handheld housing (4) which is designed to be guided at a predetermined distance over a wall surface (3) to be examined within a distance (A) from the wall, a sensor device (5) which is sensitive in the electromagnetic high-frequency range, and electromagnetically active shielding elements which shield the intervening distance (A) from the wall from the electromagnetic stray radiation in the high-frequency range, at least within a large circumferential area of a shielding contour (9) that surrounds the sensor device (5) externally.

Claims

1. A handheld scanning subsurface detector, comprising a handheld housing (4) to be guided at a predetermined distance over a wall surface (3);

a sensor device (5) which is sensitive in the electromagnetic high-frequency range and is secured to the housing (4); and

electromagnetically active shielding means for shielding the intervening distance (A) from the wall from an electromagnetic stray radiation in a high-frequency range at least within a large circumferential area of a shielding contour (9) that surrounds the sensor device (5) externally.

2. A subsurface detector according to claim 1, wherein the shielding means comprises at least one layer of an electrically conductive, permeable and/or dielectric material.

3. A subsurface detector according to claim 1, wherein the shielding means is arranged circumferentially at the housing (4) at least partially.

4. A subsurface detector according to of claim 1, wherein that the shielding means freely projects from the housing (4) on the wall side thereof into an area of the intervening distance (A).

5. A subsurface detector according to claim 1, wherein the shielding means is flexible.

6. A subsurface detector according to claim 1, wherein the shielding means is at least partially planar.

7. A subsurface detector according to claim 1, wherein the shielding means is at least partially elongated.