Metal detector
US7423422B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2004 |
| Grant date | Sep 9, 2008 |
| Priority date | — |
| Expiry date | Mar 5, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/105
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A memory (33) is provided for storing in advance data of signals supplied from a detector unit (26) when a plurality of metallic foreign matter samples differing in magnitude passes an alternating field, and data representing the magnitude of each foreign matter sample. A setting device (32) causes an indicator 36 to display the magnitude of metal detectable by a determination device (31) on the basis of those data on the foreign matter samples. Further, a contained metal displaying device (34), when the determination device (31) has determined that metallic foreign matter is contained in the object of inspection, displays the magnitude of that metal content on the indicator (36). The user can intuitively grasp the detectable magnitude of metal and the magnitude of the metal contained in the object of inspection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.