KR900702337A - 충전-레벨 표시기 - Google Patents

충전-레벨 표시기

Info

Publication number
KR900702337A
KR900702337A KR1019900700475A KR900700475A KR900702337A KR 900702337 A KR900702337 A KR 900702337A KR 1019900700475 A KR1019900700475 A KR 1019900700475A KR 900700475 A KR900700475 A KR 900700475A KR 900702337 A KR900702337 A KR 900702337A
Authority
KR
South Korea
Prior art keywords
transmitter
charge
level indicator
acoustic
fuel tank
Prior art date
Application number
KR1019900700475A
Other languages
English (en)
Inventor
그라인 니콜라스
뮐러 클라우스
Original Assignee
클라우드 포스; 디터 비트마이어
로베르트 보쉬 게엠베하
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 클라우드 포스; 디터 비트마이어, 로베르트 보쉬 게엠베하 filed Critical 클라우드 포스; 디터 비트마이어
Publication of KR900702337A publication Critical patent/KR900702337A/ko

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/296—Acoustic waves

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

내용 없음

Description

충전-레벨 표시기
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (2)

  1. 연료 탱크(10)의 내부와 결정될 매체의 내부로 돌출하고 적어도 하나의 음향-전도 재료로 구성되는 적어도 하나의 음향 전송체(11)와 음파를 방사하는 송신기(13)및 수신기에 의해 작동하는 특히 자동차 연료 탱크용 충전-레벨 표시기(12)에 있어서, 음향 전송체(11)재료 탄성 계수의 온도 계수(TKE)가 그 종방향 신장의 온도 계수(TKL)와 부호만 다르고 크기는 같은 것을 특징으로 하는 충전-레벨 표시기.
  2. 제1항에 있어서, 송신기(13)에 의해 전송체(11)내부로 투입되는 곡선파의 주파수(f)는 방정식 fopt=50KHzmm/d(d:전송체(11)의 두께)에 대응하는 것을 특징으로 하는 충전-레벨 표시기.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019900700475A 1988-07-07 1989-05-31 충전-레벨 표시기 KR900702337A (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DEP3822993.5 1988-07-07
DE3822993A DE3822993A1 (de) 1988-07-07 1988-07-07 Fuellstandsanzeiger
PCT/DE1989/000346 WO1990000725A1 (de) 1988-07-07 1989-05-31 Füllstandsanzeiger

Publications (1)

Publication Number Publication Date
KR900702337A true KR900702337A (ko) 1990-12-06

Family

ID=6358148

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900700475A KR900702337A (ko) 1988-07-07 1989-05-31 충전-레벨 표시기

Country Status (6)

Country Link
US (1) US5042298A (ko)
EP (1) EP0413754B1 (ko)
JP (1) JPH03500333A (ko)
KR (1) KR900702337A (ko)
DE (2) DE3822993A1 (ko)
WO (1) WO1990000725A1 (ko)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2013859A1 (en) * 1990-04-04 1991-10-04 Cheng-Kuei Jen Thin rod flexural acoustic wave sensors
DE10139242A1 (de) * 2001-08-09 2003-03-06 Grieshaber Vega Kg Verfahren und Vorrichtung zum Erfassen eines Befüllvorgangs
US20060169055A1 (en) * 2005-01-06 2006-08-03 Sensotech Method and system for measuring fluid level in a container
WO2013033358A1 (en) * 2011-08-30 2013-03-07 Street Smart Sensors Llc Ultrasonic liquid level detector
DE102012021794B3 (de) * 2012-11-08 2014-01-16 Krohne Messtechnik Gmbh Messanordnung zur Bestimmung einer Messgröße
EP3511685A1 (en) * 2018-01-16 2019-07-17 Ovinto cvba Improved evaluation of filling state in cargo transport
US11714176B1 (en) * 2022-09-23 2023-08-01 Texzec, Inc. Helical acoustic liquid level sensor

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2910999A (en) * 1958-07-03 1959-11-03 Jersey Prod Res Co Gas-operated liquid level sensor
US3133442A (en) * 1962-05-23 1964-05-19 Rosemount Eng Co Ltd Level sensor
US3229523A (en) * 1963-09-10 1966-01-18 Charles A Boyd Apparatus employing vibratory energy
US3512400A (en) * 1967-04-13 1970-05-19 Panametrics Ultrasonic testing method
GB1595194A (en) * 1977-09-13 1981-08-12 Marconi Co Ltd Liquid level sensing device
JPS59107236A (ja) * 1982-12-13 1984-06-21 Chichibu Cement Co Ltd 粘度測定方法

Also Published As

Publication number Publication date
JPH03500333A (ja) 1991-01-24
DE58903301D1 (de) 1993-02-25
DE3822993A1 (de) 1990-01-11
EP0413754B1 (de) 1993-01-13
US5042298A (en) 1991-08-27
WO1990000725A1 (de) 1990-01-25
EP0413754A1 (de) 1991-02-27

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Legal Events

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