[특허]Process for measuring the level of fluid in a tank according to the radar principle

Process for measuring the level of fluid in a tank according to the radar principle 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01F-023/28
출원번호	US-0132047 (1993-10-05)
우선권정보	DE-4233324 (1992-10-05)
발명자 / 주소	van der Pol Ronald (Venlo NLX)
출원인 / 주소	Krohne Messtechnik GmbH & Co. KG. (DEX 03)
인용정보	피인용 횟수 : 33 인용 특허 : 0

초록 ▼

A process for measuring the level of a liquid in a tank according to the radar principle, in which microwave energy is transmitted in the direction of the liquid level and the bottom of the tank from an antenna located above the liquid level, a measuring signal reflected from the liquid level is received by an antenna, and the liquid level may be determined from the transit time of the measuring signal, other signals than the measuring signals, i.e., spurious signals, in particular a bottom signal reflected on the bottom and which is usually relatively strong, being filtered out or otherwise taken into account by the measuring technique, and the actual distance between the antenna and the bottom of the tank (the actual bottom distance), being known, and the permittivity and permeability numbers for the liquid in the tank being at least approximately known, leads to reliable results in a way which is simpler with respect to analysis technique because of the fact that the transit time is determined for the bottom signal and an apparent bottom distance is determined from this transit time, and that from the ratio of the determined apparent bottom distance and the known actual bottom distance, the ratio of apparent to actual liquid level, and therefore the actual liquid level, is determined.

대표청구항 ▼

In a process for measuring the level of liquid in a tank according to the radar principle in which a microwave signal is transmitted in the direction of the liquid level and the bottom of the tank from a transmitting antenna located above the liquid level, received signals including perhaps spurious signals, a measuring signal reflected from the liquid level and a bottom signal reflected from the bottom of the tank are received by a receiving antenna and the measuring and bottom signals from the receiving antenna are detected and processed by receiver means associated with the antenna, the actual distance between the transmitting antenna and the receiving antenna, respectively, and the tank bottom distance being known, and the permittivity and permeability numbers er and mr for the liquid in the tank being known at least approximately, the steps of determining from said bottom signal the transit time for said bottom signal,and mathematically determining the actual liquid level in the tank at least approximately from said transit time, the known actual bottom distance and the at least approximately known permittivity and permeability numbers er and mr.

이 특허를 인용한 특허 (33)

Motzer,Juergen; Dietmeier,Juergen; Wilkie,Neil T.; Topputo,Michael L., Apparatus for use in measuring fluid levels.
상세보기
Motzer,Juergen; Dietmeier,Juergen; Wilkie,Neil T.; Topputo,Michael L., Apparatus for use in measuring fluid levels.
상세보기
Motzer,Juergen; Dietmeier,Juergen; Wilkie,Neil T.; Topputo,Michael L., Apparatus for use in measuring fluid levels.
상세보기
Fromme,Guy A.; O'Connor,Timothy; Gutow,David A.; Paschen,Dean A.; Kolesnikoff, II,Paul I.; Hirsch,Vincent A.; Emerson,Gary; Bradford,Charles; Webb,Leon C.; Hendershott,Paul, Bulk materials management apparatus and method.
상세보기
Eric R. Lovegren ; David L. Pederson, Close proximity material interface detection for a microwave level transmitter.
상세보기
Laletin, William H., Controller for generating a periodic signal with an adjustable duty cycle.
상세보기
Laletin, William H., Controller for generating a periodic signal with an adjustable duty cycle.
상세보기
Duivenvoorden,Johannes Theodorus Cornelis, Coupler with waveguide transition for an antenna in a radar-based level measurement system.
상세보기
Griessbaum, Karl; Welle, Roland, Device and method for determining media and container properties.
상세보기
Griessbaum, Karl; Welle, Roland, Device and method for determining media characteristics and container characteristics.
상세보기
Reimelt, Ralf; Schroth, Herbert, Device for determining and/or monitoring the level of a filled substance in a container.
상세보기
Welle, Roland; Griessbaum, Karl, Device for emulsion measuring by means of a standpipe.
상세보기
Welle, Roland; Griessbaum, Karl; Fehrenbach, Josef, Evaluation device and method for determining a characteristic variable for the location of a boundary surface in a container.
상세보기
Andreas Wien DE; Klaus-Peter Oberle DE; Alexander Hardell DE; Stefan Burger DE, Filling level measuring device operating with microwaves.
상세보기
Wien Andreas,DEX ; Oberle Klaus-Peter,DEX ; Hardell Alexander,DEX ; Burger Stefan,DEX, Filling level measuring device operating with microwaves.
상세보기
Laletin,William H., Input filter circuit for an operational amplifier.
상세보기
Lutke, Wolfram; Michalski, Bernhard, Level-measuring device.
상세보기
Knight, John D.; Grempler, Charles, Material level monitoring and reporting.
상세보기
Rolfes,Ilona; Musch,Thomas, Method employing the radar principle for measuring the fill level of a medium in a container.
상세보기
Muller, Roland; Schroth, Herbert; Cramer, Stefan, Method for evaluating the measurement signals of a propagation-time based measurement device.
상세보기
Gorenflo, Stefan; Malinovskiy, Alexey; Pankratz, Klaus, Method for fill level measurement according to the travel time principle.
상세보기
Rayner, Josh; Woodmansee, Michael, Non-contact radar based level measurement device.
상세보기
van der Pol Ronald,NLX, Procedure for measuring the level of a liquid in a tank according to the radar principle.
상세보기
Larsson,Lars; ��der,Marianne; Vilhelmsson,Katarina; Westerling,Jan, Processing of tank signal in radar level gauge system.
상세보기
McEwan, Thomas E., Pulse center detector for radars and reflectometers.
상세보기
Laletin,William H., Pulse width controller circuit for generating a periodic digital output signal.
상세보기
McEwan,Thomas E., RF transceiver having a directly radiating transistor.
상세보기
Cramer Stefan,DEX ; Gluth Rolf,DEX ; Schake Thomas,DEX ; Richter Brian E., Radar level gauge.
상세보기
Fitsch Carsten,DEX ; Lubcke Wolfgang,DEX ; Gerst Peter,DEX ; Lau Jurgen,DEX, Radar-based method of measuring the level of a material in a container.
상세보기
Bruce Clifford CA; John Harrison, Remote sensor head for laser level measurement devices.
상세보기
Clifford Bruce,CAX ; Harrison John, Remote sensor head for laser level measurement devices.
상세보기
Hägg, Lennart, System and method in a radar level gauging system.
상세보기
Lovegren, Eric R.; Diede, Kurt C.; Carlson, Ryan R., Threshold setting for a radar level transmitter.
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

Process for measuring the level of fluid in a tank according to the radar principle 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허를 인용한 특허 (33)

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트

연합인증

Process for measuring the level of fluid in a tank according to the radar principle 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 (33)

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트