System and method for detecting low metal content buried mines
A method and apparatus for detecting mostly-plastic mines having steel firing pins and copper igniter cups. A frequency spectrum is transmitted, and response signals from the metal components induced by resultant eddy currents are detected. The firing pin generates a response characterized by a firs...
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| Main Author | |
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| Format | Patent |
| Language | English |
| Published |
15.08.2000
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| Edition | 7 |
| Subjects | |
| Online Access | Get full text |
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| Abstract | A method and apparatus for detecting mostly-plastic mines having steel firing pins and copper igniter cups. A frequency spectrum is transmitted, and response signals from the metal components induced by resultant eddy currents are detected. The firing pin generates a response characterized by a first frequency that is in phase with the transmitted frequency, whereas the igniter cup generates a response characterized by a second frequency that is in quadrature with the transmitted frequency. Accordingly, the detected response can be compared to prestored response templates to determine what type of mine, if any, has been detected, with the use of two response frequencies and phase relationships enabling the discrimination of buried plastic mines from surrounding metal particles in the earth. |
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| AbstractList | A method and apparatus for detecting mostly-plastic mines having steel firing pins and copper igniter cups. A frequency spectrum is transmitted, and response signals from the metal components induced by resultant eddy currents are detected. The firing pin generates a response characterized by a first frequency that is in phase with the transmitted frequency, whereas the igniter cup generates a response characterized by a second frequency that is in quadrature with the transmitted frequency. Accordingly, the detected response can be compared to prestored response templates to determine what type of mine, if any, has been detected, with the use of two response frequencies and phase relationships enabling the discrimination of buried plastic mines from surrounding metal particles in the earth. |
| Author | BELL; THOMAS H |
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| Notes | Application Number: US19980153463 |
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| Snippet | A method and apparatus for detecting mostly-plastic mines having steel firing pins and copper igniter cups. A frequency spectrum is transmitted, and response... |
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| SubjectTerms | DETECTING MASSES OR OBJECTS GEOPHYSICS GRAVITATIONAL MEASUREMENTS MEASURING PHYSICS TESTING |
| Title | System and method for detecting low metal content buried mines |
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