[특허]Frequency scanning capaciflector for capacitively determining the material properties

Frequency scanning capaciflector for capacitively determining the material properties 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01R-027/26
출원번호	US-0394108 (1995-02-17)
발명자 / 주소	Campbell Charles E. (Laurel MD)
출원인 / 주소	The United States of America as represented by the Administrator of the National Aeronautics and Space Administration (Washington DC 06)
인용정보	피인용 횟수 : 43 인용 특허 : 0

초록 ▼

A capaciflector sensor system scanned in frequency is used to detect the permittivity of the material of an object being sensed. A capaciflector sensor element, coupled to current-measuring voltage follower circuitry, is driven by a frequency swept oscillator and generates an output which corresponds to capacity as a function of the input frequency. This swept frequency information is fed into apparatus e.g. a digital computer for comparing the shape of the capacitance vs. frequency curve against characteristic capacitor vs. frequency curves for a variety of different materials which are stored, for example, in a digital memory of the computer or a database. Using a technique of pattern matching, a determination is made as to the identification of the material. Also, when desirable, the distance between the sensor and the object can be determined.

대표청구항 ▼

Apparatus for capacitively determining the material composition of an object being approached, comprising: a capacitive type sensor including a sensor element and at least one shield member located between said object and a reference potential surface, said shield member being of a size substantially larger than said sensor element for reducing the parasitic capacitance between said sensor element and said reference potential surface; signal generating means for generating a signal varied in frequency over a predetermined frequency range; circuit means for commonly coupling said signal generator means to said sensor element and said shield member; means coupled at least to said sensor element for detecting a capacitance vs. frequency characteristic of the capacitance between said sensor element and said object over said frequency range; means for storing a plurality of capacitance vs. frequency characteristics, each of said characteristics being a respective characteristic of a plurality of different constituent materials; and means for comparing the detected capacitance vs. frequency characteristic of the capacitance between said sensor element and said object against said plurality of capacitance vs. frequency characteristics for matching and thereby identifying the constituent material of said object.

이 특허를 인용한 특허 (43)

Gibb, William J.; Smidebush, Michael; Hernandez-Guerra, Francisco Miguel, Adaptive proximity sensing.
상세보기
Gibb,William J.; Smidebush,Michael; Hernandez Guerra,Francisco Miguel, Adaptive proximity sensing.
상세보기
Wilson, Jay, Apparatus and methods for lubricant filtration and drum pump filtration system.
상세보기
Koehler, Don, Apparatus and methods for management of fluid condition.
상세보기
Adams, Brian T.; Karlmann, Thomas; Hale, George H.; Schubert, William L., Apparatus for measuring parameters of material.
상세보기
Magill, Richard, Calibration and metering methods for wood kiln moisture measurement.
상세보기
Howard,Jack E.; Lieder,Oliver H.; Bowlds,Brian Burket; Lindsay,Paul Austin, Capacitive sensor for non-contacting gap and dielectric medium measurement.
상세보기
Magill,Richard; Van Doren,John C.; Sellers,Bruce; Erickson,Tim; Schnieder,Scott; Courington,Steve; Bethel,Lance, Controlling the curing of a rubber compound.
상세보기
Vranish, John M., Device, system and method for a sensing electrical circuit.
상세보기
Lundstrom, John W.; Anderson, Dennis; Straley, Dave; Ehni, William; Word, Darrell R., Electrically measuring soil dry density.
상세보기
Bloch, Heinz P.; Thomas, Rojean; Freeland, Daniel; Malinowski, Jeffrey T, Flinger disc.
상세보기
Anderson, Noel W.; Turner, Christopher D.; Le, Duong M.; Vollmar, Uwe; Davis, Travis J., Human presence detection on a mobile machine.
상세보기
Randall W. Wallace ; Allen D. Reich ; David B. Sweet ; Richard L. Rauckhorst, III ; Michael J. Terry ; Marc E. Holyfield, Ice thickness detector.
상세보기
Ishino, Hirotsugu; Tarui, Jun, Liquid concentration measuring device.
상세보기
Jung, Jim; Freeland, Dan; Corgiat, Nick; Kiepert, Lisa; Gundrum, Dan, Lubricant dispenser.
상세보기
Jung, Jim; Freeland, Dan; Corgiat, Nick; Kiepert, Lisa; Gundrum, Dan, Lubricant dispenser.
상세보기
Jung, Jim; Freeland, Dan; Corgiat, Nick; Kiepert, Lisa; Gundrum, Dan, Lubricant dispenser.
상세보기
Gundrum, Daniel; Scherer, Nicholas, Lubricant dispenser with nozzle.
상세보기
Jung, Jim; Freeland, Dan; Corgiat, Nick; Kiepert, Lisa; Gundrum, Dan, Lubricant dispensing nozzle.
상세보기
Niksa, Andrew J.; Fousek, James D., MEMS-based sensor for lubricant analysis.
상세보기
Gamache,Ronald W.; Hosterman,Richard; Pluta,Sarah, Material analysis including density and moisture content determinations.
상세보기
Brian T. Adams ; Thomas Karlmann ; George H. Hale ; William L. Schubert, Method and apparatus for measuring parameters of material.
상세보기
Adams Brian T. ; Karlmann Thomas ; Hale George H. ; Schubert William L., Method and apparatus measuring parameters of material.
상세보기
Boschetti, Marco; Gottardo, Andrea, Method for calibrating apparatuses for determining the moisture content of products based on capacitive measurements, and device for stimulating the dielectric properties of products, such as wood, for use in this method.
상세보기
Adams Brian T. ; Hale George H. ; Schubert William L., Method for measuring yield and moisture.
상세보기
Brandt, David D., Noise resistant electronic presence sensor.
상세보기
Magill, Richard W., Non-bridged single electrode impedance measurement system for determining a condition of a dielectric according to impedance related changes over a range of frequencies.
상세보기
Stanley, James G.; Stopper, Jr., Robert A., Occupant detection system.
상세보기
Robert A. Sovik ; Richard N. Hosterman ; George G. Moross, Paving material analyzer system and method.
상세보기
Sovik, Robert A.; Hosterman, Richard N.; Moross, George G., Paving material analyzer system and method.
상세보기
Sovik Robert A. ; Hosterman Richard N. ; Moross George G., Paving material density indicator and method using capacitance.
상세보기
Wilson, Jay, Portable lubricant filtration system and method.
상세보기
Schneider,Scott; Magill,Richard, Process and apparatus for improving and controlling the curing of natural and synthetic moldable compounds.
상세보기
Magill,Richard; Van Doren,John C.; Sellers,Bruce; Erickson,Tim; Schneider,Scott; Courington,Steve; Bethel,Lance, Process and apparatus for improving and controlling the vulcanization of natural and synthetic rubber compounds.
상세보기
Van Doren, John C.; Magill, Richard; Sellers, Bruce; Erickson, Tim; Schnieder, Scott; Courington, Steve; Bethel, Lance, Process and apparatus for improving and controlling the vulcanization of natural and synthetic rubber compounds.
상세보기
Pascal Coudray FR; Marie-Helene Froger FR; Mickael Lorgeoux FR; Christophe Truffaut FR, Process for measuring the electrical resistance of a resistive body for example for checking the conformity of a liquid product and devices for carrying out such a process.
상세보기
Lenz, Robert G., Proximity detection system.
상세보기
Pierga, Wojciech T.; Siwek, Thomas R.; Shishegar, Ahmad R., Safety detection and protection system for power tools.
상세보기
Pierga, Wojciech T.; Siwek, Thomas R.; Shishegar, Ahmad R., Safety detection and protection system for power tools.
상세보기
Pierga, Wojciech T.; Siwek, Thomas R.; Shishegar, Ahmad R., Safety detection and protection system for power tools.
상세보기
Bryan D. Greer, Swept-frequency dielectric moisture and density sensor.
상세보기
Martinez,Robert E.; Cerwin,Stephen A.; Goyen,Todd H., Systems and methods for detection of dielectric change in material and structure.
상세보기
Magill, Richard, Wood kiln moisture measurement calibration and metering methods.
상세보기

IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

연합인증

Frequency scanning capaciflector for capacitively determining the material properties 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허를 인용한 특허 (43)

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트

연합인증

Frequency scanning capaciflector for capacitively determining the material properties 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

전체(0) 논문(0) 특허(0) 보고서(0)

전체(0) 논문(0) 특허(0) 보고서(0)

이 특허를 인용한 특허 (43)

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트