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Capacitive-type seed sensor for a planter monitor

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G01R-027/26
출원번호 US-0883558 (1986-07-09)
발명자 / 주소
  • Bachman Wesley J. (Auburn IL)
출원인 / 주소
  • Dickey-john Corporation (Auburn IL 02)
인용정보 피인용 횟수 : 20  인용 특허 : 11

초록

A sensor apparatus for detecting a flow of material along a given path of travel by detecting a change in the dielectric properties of a portion of the path of travel as the material passes therethrough comprises one or more conductive, plate-like electrodes disposed adjacent the path of travel and

대표청구항

A sensor apparatus for detecting a flow of material along a given path of travel by detecting a change in the dielectric properties of a portion of said path of travel as the material passes therethrough, said apparatus comprising: electrode means disposed adjacent said path of travel and generally

이 특허에 인용된 특허 (11)

  1. Anson James H. (Auburn IL) Steffen David E. (Chatham IL), Calibrated tuneable monitor.
  2. Aeppli Kurt (Uster CHX), Capacitive thread stopping motion.
  3. Dechene Ronald L. (Boxford MA) Newton Robert E. (Tewksbury MA), Electrical measurement of fluid void fraction for fluid having capacitive and resistive conductive components.
  4. Kraus Hans (Rsselheim DEX), Field sensor.
  5. Ayers Joseph W. (Roseville MN) Wood Rex C. (New Brighton MN), High speed capacitance apparatus for classifying pharmaceutical capsules.
  6. Reuland Joachim (Hamburg DT), Method and arrangement for determining the mass of tobacco or the like by capacitance and attenuation measurements in a.
  7. Merlo Angelo (Sterling Heights MI), Microwave seed sensor.
  8. Amburn Raymond D. (Sterling Heights MI), Microwave seed sensor for field seed planter.
  9. Hanson, Colin J., Moisture analyzer.
  10. Bell Dennis M. (Hudson IL), Optical seed sensor for a seed planter monitor.
  11. Jenkins John P. (Mackinaw IL) Rector Stephen W. (Bloomington IL) McCarty John J. (Peoria IL) Hammond William (Peoria IL), Seed planter monitor.

이 특허를 인용한 특허 (20)

  1. Braun Hans (Karlsruhe DEX) Kessler Uwe (Oftersheim DEX), Circuit arrangement for signal recovery in a capacitive difference sensor.
  2. Bond Derek (Lagness GB2) Abreu Raul A. (Horsham GB2), Device and method for monitoring deposits in a pipe or vessel.
  3. Vaez-Zadeh, Sadegh; Zahedi, Bijan, Efficiency maximization control and variable speed drive of single phase induction motors.
  4. Itagi, Amit V.; Wiwel, Bernard; Oberg, Russell F., Electromagnetic seed sensor assembly for seed tube planting applications.
  5. Itagi, Amit V.; Wiwel, Bernard; Oberg, Russell F., Electromagnetic seed sensor assembly for seed tube planting applications.
  6. Dowling Donald J. (Houston TX) Sims Jackie C. (Houston TX), Fluid capacitance sensing means and method.
  7. Harms Louis C. (Evanston IL) Rosenbrock Richard (Bluffton IN), High accuracy automatically controlled variable linear seed spacing planting apparatus.
  8. Rosenbrock Richard, High accuracy, low speed doppler effect radar and signal conditioning circuit useful in agricultural applications.
  9. Nichols Stephen W., Method and apparatus for counting crops.
  10. Hien, Peter, Method for measuring a material flow by means of microwaves, sensor management and device having a sensor arrangement.
  11. Baron, Maximo, OSCILLATING DEVICE FOR THE DETERMINATION OF THE PURITY OF SINGLE OR MULTI-COMPONENT LIQUIDS FROM THEIR DIELECTRIC PERMITTIVITY, IN A CONTINUOUS WAY AND THROUGH FREQUENCY CHANGES IN THE STATIC PERMITT.
  12. Stewart, Jason T., Orifice selector module for liquid fertilizer distribution systems.
  13. Goeke, Wayne C., Phase-gain calibration of impedance/admittance meter.
  14. Sauder, Gregg A.; Plantamura, Louis Gino, Seed tube egress-mounted seed sensor.
  15. Greenwald, Shlomo; Greenwald, Zipora; Greenwald, Uri Moshe, Sensor and method for detecting a substance.
  16. Noble, Scott David; Pastl, David Matthew, System and method for monitoring agricultural product delivery.
  17. Stewart, Jason T.; Thurow, Bradley R.; Batcheller, David C.; Allen, Robert M.; Bailey, Steven S.; Giese, Christopher L., System and method for monitoring inefficient flow rates using magnetic sensor in a liquid-flow distribution system.
  18. Stewart, Jason T.; Thurow, Bradley R.; Batcheller, David C.; Allen, Robert M.; Bailey, Steven S.; Giese, Christopher L., System and method for monitoring inefficient flow rates using magnetic sensor in a liquid-flow distribution system.
  19. Greenwald,Shlomo; Greenwald,Zipora, Systems and methods for detecting the presence and/or absence of a solid liquid or gas.
  20. Bessyo, Daisuke; Shiba, Fumikazu; Takemura, Koichi, Ultrasonic flowmeter including an oscillation start unit for acceleration stability of the oscillator.
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