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Sampling metal detector 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G01V-003/10
  • G01R-033/02
출원번호 US-0526678 (1974-11-25)
발명자 / 주소
  • Payne George Calvin (Tempe AZ)
출원인 / 주소
  • White\s Electronics, Inc. (Sweet Home OR 02)
인용정보 피인용 횟수 : 43  인용 특허 : 0

초록

A sampling type of metal detector is described in which an oscillator transmits an oscillator signal current through the transmit coil of the detector to produce an electromagnetic field in the region of a search head. A received signal is induced in the receive coil of the detector when a metal obj

대표청구항

A sampling metal detector comprising: transmit coil means; receive coil means; search head means for enclosing and supporting said transmit coil means and said receive coil means in such a manner as to enable the detection of metal objects in an unabservable position external to the search head; a f

이 특허를 인용한 특허 (43)

  1. Wilson Paul S. (4415 Brookton Dr. South Bend IN 46614), Anti-falsing and zero nulling search head for a metal detector.
  2. Mori Toshihiro (Yokohama JPX) Ando Seigo (Yokohama JPX) Akuzawa Hironobu (Yokohama JPX), Apparatus for detecting the center of a welded seam in accordance with fundamental harmonic component suppression.
  3. Kuno Akira (Oobu JPX) Matsumoto Muneaki (Okazaki JPX) Numata Koji (Toyokawa JPX), Apparatus for simultaneous measurement of magnetic field components in mutually perpendicular directions.
  4. Johnson Douglas L. (Lebanon OR), Balanced search loop for metal detector.
  5. Simon, Joseph S., Balancing circuit for a metal detector.
  6. Richardson, Chris, Buried object detector.
  7. Crowley Christopher W., Device for selectively detecting metal objects.
  8. Bamber, Andrew S.; Houlahan, Darcy J., Extracting mined ore, minerals or other materials using sensor-based sorting.
  9. Bamber, Andrew Sherliker; Houlahan, Darcy James, Extracting mined ore, minerals or other materials using sensor-based sorting.
  10. Bamber, Andrew Sherliker; Houlahan, Darcy James, Extracting mined ore, minerals or other materials using sensor-based sorting.
  11. Bamber, Andrew Sherliker; Houlahan, Darcy James, Extracting mined ore, minerals or other materials using sensor-based sorting.
  12. Beling Thomas E. (Framingham MA) Spani Wayne M. (San Diego CA), Ferromagnetic object detector with comparison of signal maximums from a pair of detection coils.
  13. Bamber, Andrew Sherliker; Csinger, Andrew; Poole, David, High capacity cascade-type mineral sorting machine and method.
  14. Bamber, Andrew Sherliker; Csinger, Andrew; Poole, David, High capacity cascade-type mineral sorting machine and method.
  15. Bamber, Andrew Sherliker; Esfahani, Kamyar; Teng, Kang; Anderson, Richard, High capacity separation of coarse ore minerals from waste minerals.
  16. Clements Philip E. (Littleton CO), Hinged metal detection cover for a receptacle.
  17. Turner John E. (El Paso TX), Induction balance metal detector with ferrous and non-ferrous metal identification.
  18. Tompkins, Fred D.; Wilkerson, John B.; Vass, Arpad A.; Hutchison, Timothy R., Matter detector, sensor and locator device and methods of operation.
  19. Tompkins, Fred D.; Wilkerson, John B.; Vass, Arpad A.; Hutchison, Timothy R., Matter detector, sensor and locator device and methods of operation.
  20. Gifford Jack D. (4943 W. Brown Glendale AZ 85302), Metal detector apparatus utilizing controlled phase response to reject ground effects and to discriminate between differ.
  21. Podhrasky Robert J. (Dallas TX), Metal detector circuit having automatic tuning with multiple rates.
  22. Podhrasky Robert J. (Dallas TX), Metal detector circuit having selectable exclusion range for unwanted objects.
  23. Podhrasky Robert J. (Dallas TX), Metal detector circuit with mode selection and automatic tuning.
  24. Dykstra Donald W. (Forest Grove OR) Calvin Samuel E. (Forest Grove OR), Metal detector for locating objects with full sensitivity in the presence of distributed mineral material.
  25. Payne ; George C., Metal detector system with ground effect rejection.
  26. Hirschi Richard E. (Sweet Home OR) Payne George C. (Salem OR), Metal detector system with undesirable target and mineralized ground discrimination.
  27. Payne George C. (Salem OR), Metal detector systems for identifying targets in mineralized ground.
  28. Tavernetti Russell E. ; Dodd Paul W., Metal detector with nulling of imbalance.
  29. Tyndall ; Jerry C., Metal detector with phase related circuit selective discrimination.
  30. Reime, Gerd, Method for determining at least one physical parameter using a sensor unit.
  31. Bamber, Andrew Sherliker; Alatrash, Ali; Petrovic, Igor; Desaulniers, Greg, Mining shovel with compositional sensors.
  32. Ohtsuki,Hidetomo, Modular proximity sensor.
  33. Stamatescu, Laurentiu; Shapoval, Sergii; Gunn, Lachlan, Noise reduction circuitry for a metal detector.
  34. Karbowski James P. (Philomath OR), Oscillator type metal detector with switch controlled fixed biasing.
  35. Pecori Peter M. (Alexandria VA), Portable buried object detection system with error reducing signal processing.
  36. Lewis Leon (Rancho Palos Verdes CA) White Bryan (Manhattan Beach CA) Yamanaka Clarence (Torrance CA), Position transducer apparatus and associated circuitry including pulse energized primary winding and pair of waveform sa.
  37. Emery, David, Resonant pulse induction metal detector that transmits energy from high voltage flyback pulses.
  38. Randolph ; Jr. Byron B. (Phoenix AZ), Selective/ground neutralizing metal detector.
  39. Ian David Nelson-White AU, Sensor panel and a detection apparatus incorporating the same.
  40. Bamber, Andrew Sherliker; Barcza, Nicholas; Csinger, Andrew, Sorting materials using a pattern recognition, such as upgrading nickel laterite ores through electromagnetic sensor-based methods.
  41. Bamber, Andrew Sherliker; Barcza, Nicholas; Csinger, Andrew, Sorting materials using pattern recognition, such as upgrading nickel laterite ores through electromagnetic sensor-based methods.
  42. Karbowski James P. (Philomath OR), Transmitter-receiver loop buried metal object locator with switch controlled reference voltage.
  43. Karbowski James P. (Philomath OR), Wide pulse gated metal detector with improved noise rejection.
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