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Moisture sensing devices 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G01R-027/26
  • G01N-019/00
  • G01N-027/22
  • G01N-025/62
  • G08B-019/02
  • F21V-031/00
  • H05K-005/06
출원번호 US-0784091 (2013-03-04)
등록번호 US-9063067 (2015-06-23)
발명자 / 주소
  • Schmitt, Alvin P.
출원인 / 주소
  • Schmitt, Alvin P.
대리인 / 주소
    New River Valley IP Law, PC
인용정보 피인용 횟수 : 0  인용 특허 : 57

초록

Capacitive moisture sensors for monitoring moisture conditions through the use of an electric field are provided, including sensing devices for determining the amount of moisture on a device and correlating this with an amount of moisture in the atmosphere to determine whether plants need more or le

대표청구항

1. A fringing capacitor sensor for detecting moisture comprising: a printed circuit board (PCB) comprising first and second conductive electrodes;an evaporative membrane disposed above the PCB;a void area of an inert gas in direct contact with the electrodes and disposed between the evaporative memb

이 특허에 인용된 특허 (57)

  1. Nir Isaac (Mazkeret Batya ILX), Apparatus and method for plant growth in aeroponic conditions.
  2. Ogawa Kenji (Hyogo JPX), Apparatus for detecting fuel dielectric constant.
  3. Gerardi Joseph J. (Dryden NY) Hickman Gail A. (Dryden NY) Khatkhate Ateen A. (Ithaca NY) Pruzan Dan A. (Ithaca NY), Apparatus for measuring ice distribution profiles.
  4. Birnbach Lawrence H. (7 Jones St. New York NY 10014) Birnbach Curtis A. (254 Seaman Ave. New York NY 10034), Automatic control of the moisture content of the soil.
  5. Dauge Gilbert V. (Lagny FRX) Langlais Jacques F. (Coudray Montceaux FRX), Capacitance measuring by comparison to reference capacitance.
  6. Dooley Kevin A. (Georgetown CAX), Capacitance to voltage conversion circuit including a capacitive bridge and a capacitive offset.
  7. Hirono, Atsuyuki; Mori, Hideo; Takada, Yuji; Yoshikawa, Keisuke, Capacitance type moisture sensor and method of producing the same.
  8. Itakura,Toshikazu; Isogai,Toshiki, Capacitance type physical quantity detector.
  9. Koontz Harry S. (Penn Hills Township ; Allegheny County PA) Wilson James F. (Worthington PA), Capacitive coupled moisture sensor.
  10. Arisaka,Naoki, Capacitive humidity sensor.
  11. Toyoda, Inao, Capacitive humidity sensor.
  12. Katz,Bernard Roy, Capacitive moisture sensor.
  13. Toyoda, Inao, Capacitive moisture sensor.
  14. Lee,Fu Ching, Capacitive soil moisture sensor.
  15. Dowd Roger D. (Watertown MA), Capacitive transducing with feedback.
  16. Permuy Alfred (Paris FRX), Circuit for measuring variations in the capacitance of a variable capacitor using a continuously rebalanced detection br.
  17. Demers Rosario N. (Dayton OH), Compressor blade clearance measurement system.
  18. Turetta Daniele (Ispra ITX), Device for detecting the presence of a food container, such as a saucepan, dish or the like, on a glass ceramic cooking.
  19. Chambon, Gerald; Gijs, Martin, Device for measuring the quality and/or degradation of fluid, particularly a food oil.
  20. Zlochin, Igor, Dew point hygrometers and dew sensors.
  21. Ogawa Kenji (Hyogo JPX) Suzuki Hiroyoshi (Hyogo JPX), Dielectric constant detecting apparatus.
  22. Suzuki Hiroyoshi (Himeji JPX) Ogawa Kenji (Himeji JPX) Okada Akira (Himeji JPX), Dielectric constant detection apparatus for fuel.
  23. Yishay Netzer IL, Differential windshield capacitive rain sensor.
  24. Smith Thomas (Walnut Creek CA), Digital fluid analyzer using capacitive sensing.
  25. Cambell Jeffrey E. (Centerville VA), Electrical sensor for determining the moisture content of soil.
  26. Oliver Michael J., Evapotranspiration remote irrigation control system.
  27. Meitzler Allen H. (Ann Arbor MI) Saloka George S. (Dearborn MI), Flexible fuel PI filter sensor.
  28. Cota Roger, Humidity sensor.
  29. Isogai, Toshiki; Itakura, Toshikazu, Humidity sensor.
  30. Hilliard, Steven R.; Roberts, Michael J.; Yerem, Geoffrey C., Inductive signature measurement circuit.
  31. Howarth Walter J. (Forestville AUX) Jarvis Laurance (Forestville AUX), Method and apparatus for measuring the moisture content of a substance.
  32. Regtien Paulus P. L. (Delft NLX), Method and arrangement for measuring the contamination of a capacitive dew-point sensor.
  33. Holbrook Noel M. (Palo Alto CA) Burns Michael J. (Mountain View CA), Method and device for non-invasive monitoring of hydration state of plants.
  34. Hata Shuji (Tokyo JPX) Murasawa Osamu (Tokyo JPX), Method of detecting a variation in stray capacitance by use of a PLL circuit.
  35. Geiger Edward C. (500 E. 7th St. Lansdale PA 19446), Misting control.
  36. Lynch Gary M. (M.S. 861 Fernvale ; Queensland ; 4305 AUX), Misting control apparatus.
  37. Kashiuchi Yoshinobu (Osaka JPX) Zinguzi Isamu (Osaka JPX), Moisture meter.
  38. Pile James E. (Louisville KY), Moisture meter.
  39. Bireley Richard L. (San Diego CA) Iltis Rumult (La Jolla CA), Moisture sensor.
  40. Iltis Rumult (La Jolla CA), Moisture sensor.
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  43. Itakura,Toshikazu; Isogai,Toshiki, Moisture sensor device and self-diagnosing method therefor.
  44. L체thi,Yves, Moisture sensor with capacitive moisture measuring element and method of determining air humidity.
  45. Pingel Ulrich (Marl DEX) Nolte Hans-Henning (Gelsenkirchen DEX), Process for contactless measurement of the electrical resistance of a test material.
  46. Veerasamy, Vijayen S., Rain sensor with fractal capacitor(s).
  47. Resch Martha (Pocking DEX), Rain-actuated control for covering systems.
  48. Iyoda Motomi (Toyota JPX), Sensor for detecting an amount of rain.
  49. Greer Bryan D., Shielded flat-plate proximity/dielectric properties sensor.
  50. Hughes,William C., Soil probe device and method of making same.
  51. Laue Eric G. (San Marino CA) Stephens James B. (La Crescenta CA), Spiral configuration of electrodes and dielectric material for sensing an environmental property.
  52. Miller, Richard N.; Ray, K. Bruce, System for optimum irrigating and fertilizing.
  53. Maclay William Richard (16300 Lavender Lane Los Gatos CA 95030), System for spraying and cooling vegetation.
  54. Weinstein Leonard M., Thickness measurement device for ice, or ice mixed with water or other liquid.
  55. Overall, Wilson W.; Waldman, Jerry R., Water depth measuring device.
  56. Gray Randall C. (Scottsdale AZ) Main W. Eric (Mesa AZ), Water-in-fuel sensor circuit and method.
  57. Netzer Yishay,ILX, Window capacitive moisture sensor.
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