DK148428C - Niveaudetektor med et piezoelektrisk krystal - Google Patents

Niveaudetektor med et piezoelektrisk krystal

Info

Publication number
DK148428C
DK148428C DK43983A DK43983A DK148428C DK 148428 C DK148428 C DK 148428C DK 43983 A DK43983 A DK 43983A DK 43983 A DK43983 A DK 43983A DK 148428 C DK148428 C DK 148428C
Authority
DK
Denmark
Prior art keywords
level detector
piezoelectric crystal
piezoelectric
crystal
detector
Prior art date
Application number
DK43983A
Other languages
English (en)
Other versions
DK148428B (da
DK43983D0 (da
DK43983A (da
Inventor
Niels Due Jensen
Hans Ole Brunsgaard
Original Assignee
Grundfos As
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 Grundfos As filed Critical Grundfos As
Priority to DK43983A priority Critical patent/DK148428C/da
Publication of DK43983D0 publication Critical patent/DK43983D0/da
Priority to DE19843402418 priority patent/DE3402418A1/de
Priority to JP59015961A priority patent/JPS59162418A/ja
Priority to US06/576,118 priority patent/US4507583A/en
Publication of DK43983A publication Critical patent/DK43983A/da
Publication of DK148428B publication Critical patent/DK148428B/da
Application granted granted Critical
Publication of DK148428C publication Critical patent/DK148428C/da

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
    • G01F23/282—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 for discrete levels

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
DK43983A 1983-02-03 1983-02-03 Niveaudetektor med et piezoelektrisk krystal DK148428C (da)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DK43983A DK148428C (da) 1983-02-03 1983-02-03 Niveaudetektor med et piezoelektrisk krystal
DE19843402418 DE3402418A1 (de) 1983-02-03 1984-01-25 Pegelmessfuehler
JP59015961A JPS59162418A (ja) 1983-02-03 1984-01-31 レベル検出器
US06/576,118 US4507583A (en) 1983-02-03 1984-02-02 Piezo-electric level detector

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK43983A DK148428C (da) 1983-02-03 1983-02-03 Niveaudetektor med et piezoelektrisk krystal
DK43983 1983-02-03

Publications (4)

Publication Number Publication Date
DK43983D0 DK43983D0 (da) 1983-02-03
DK43983A DK43983A (da) 1984-08-04
DK148428B DK148428B (da) 1985-07-01
DK148428C true DK148428C (da) 1985-11-25

Family

ID=8093555

Family Applications (1)

Application Number Title Priority Date Filing Date
DK43983A DK148428C (da) 1983-02-03 1983-02-03 Niveaudetektor med et piezoelektrisk krystal

Country Status (4)

Country Link
US (1) US4507583A (da)
JP (1) JPS59162418A (da)
DE (1) DE3402418A1 (da)
DK (1) DK148428C (da)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4604544A (en) * 1983-10-17 1986-08-05 Jeco Co., Ltd. Piezoelectric pressure indicator
US4703652A (en) * 1984-12-01 1987-11-03 Ngk Spark Plug Co., Ltd. Piezoelectric type liquid level sensor and fabricating method thereof
DE3538740A1 (de) * 1985-10-31 1987-05-07 Vdo Schindling Einrichtung zur erfassung des fuellstandes in einem behaelter
DE3633047A1 (de) * 1986-09-29 1988-04-07 Endress Hauser Gmbh Co Fuellstandmessgeraet zur messung des fuellstandes von explosiblen oder aggresiven medien in einem behaelter
DE3825047A1 (de) * 1987-10-19 1989-04-27 Siemens Ag Sensor zur erfassung des fluessigkeitsstandes in einem behaelter
US5053671A (en) * 1987-11-16 1991-10-01 Nissan Motor Company, Limited Piezoelectric sensor for monitoring kinetic momentum
US4964090A (en) * 1989-07-19 1990-10-16 Trw, Inc. Ultrasonic fluid level sensor
DE3931453C1 (da) * 1989-09-21 1991-02-28 Endress U. Hauser Gmbh U. Co, 7864 Maulburg, De
DE102006014870A1 (de) * 2005-03-31 2006-10-19 Seiko Epson Corp. Flüssigkeitserfassungseinrichtung, Flüssigkeitsbehälter und Verfahren zur Herstellung einer Flüssigkeitserfassungseinrichtung
TWI403009B (zh) * 2010-04-02 2013-07-21 中原大學 環狀極化壓電片、其製程及其應用在扭力感測器
US10811590B1 (en) 2016-06-23 2020-10-20 Plastipak Packaging, Inc. Containers with sensing and/or communication features

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2413462A (en) * 1942-07-30 1946-12-31 Brush Dev Co Transducer
CH239107A (de) * 1943-03-30 1945-09-15 Telefunken Gmbh Fassung für piezoelektrischen Schwingkristall.
US2402531A (en) * 1944-03-28 1946-06-25 Brush Dev Co Transducer
US2636134A (en) * 1947-10-01 1953-04-21 Arnold B Arons Piezoelectric pressure gauge element
US2639393A (en) * 1948-02-26 1953-05-19 Piezo Crystals Ltd Mounting and holder for piezoelectric crystals
US2518331A (en) * 1948-05-06 1950-08-08 Bell Telephone Labor Inc Piezoelectric crystal mounting
US2794132A (en) * 1953-09-23 1957-05-28 Clevite Corp Method of waterproofing piezoelectric crystals and waterproofed crystal unit
US2806966A (en) * 1953-11-17 1957-09-17 Motorola Inc Crystal assembly and process
US2814741A (en) * 1955-02-10 1957-11-26 Standard Electronics Corp Crystal mounting means
US3299301A (en) * 1964-08-12 1967-01-17 Gen Instrument Corp Piezoelectric ceramic filter
US3336573A (en) * 1966-09-14 1967-08-15 Texaco Inc Crystal pressure sensitive geophones for use in soft earth
US4417170A (en) * 1981-11-23 1983-11-22 Imperial Clevite Inc. Flexible circuit interconnect for piezoelectric element

Also Published As

Publication number Publication date
JPS59162418A (ja) 1984-09-13
DK148428B (da) 1985-07-01
DK43983D0 (da) 1983-02-03
US4507583A (en) 1985-03-26
DK43983A (da) 1984-08-04
DE3402418A1 (de) 1984-08-16

Similar Documents

Publication Publication Date Title
NO842799L (no) Flytende krystallviser
ES281948Y (es) Un frasco
IT8447993A0 (it) Struttura a pannello
ES280876Y (es) Dispositivo de fijacion a rosca
ES276804Y (es) Un tostador
AT382968B (de) Piezoelektrisches messelement
GB2091881B (en) Fuel inkection device provided with a force-responisve quartz crystal
KR850007938U (ko) 1쌍의 파스너 요소들을 조립하는 장치
DK148428C (da) Niveaudetektor med et piezoelektrisk krystal
DK164485D0 (da) Apparat til traekning af et krystal
DK157084A (da) Fremgangsmaade til overvaagning af et vaeskeniveau
KR850007937U (ko) 한쌍의 패스너 요소를 조립하기 위한 장치
ES538177A0 (es) Un depurador
IT1173348B (it) Complesso vibratorio a piu' ampiezze
DK538284A (da) Redningsmateriel med et gastaet hylster
ES537486A0 (es) Un display de cristal liquido
DK159559C (da) Fremgangsmaade til fremstilling af et fundament samt en forskallingsenhed til udoevelse af fremgangsmaaden
GB2092852B (en) Crystal oscillator
DE3480495D1 (de) Electrooptical sensor
NO840472L (no) Anordning for sammenkobling av et prosjektil med en prosjektilforlengelsesdel
DK66285A (da) Centrifuge med en udloebsanordning
DK153183C (da) Vingehus til et missil med en selvrejsende vingekonstruktion
ES281666Y (es) Un dispositivo de pesas
DE3482228D1 (de) Kristall-oszillator.
DK195582A (da) Anordning med udluftningskanal

Legal Events

Date Code Title Description
PBP Patent lapsed