DE9209977U1 - - Google Patents

Info

Publication number
DE9209977U1
DE9209977U1 DE9209977U DE9209977U DE9209977U1 DE 9209977 U1 DE9209977 U1 DE 9209977U1 DE 9209977 U DE9209977 U DE 9209977U DE 9209977 U DE9209977 U DE 9209977U DE 9209977 U1 DE9209977 U1 DE 9209977U1
Authority
DE
Germany
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE9209977U
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vega Grieshaber KG
Original Assignee
Vega Grieshaber KG
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
Priority claimed from DE19914126399 external-priority patent/DE4126399A1/de
Priority claimed from DE19914138528 external-priority patent/DE4138528C1/de
Application filed by Vega Grieshaber KG filed Critical Vega Grieshaber KG
Priority to DE9209977U priority Critical patent/DE9209977U1/de
Publication of DE9209977U1 publication Critical patent/DE9209977U1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • G01F23/296—Acoustic waves
    • G01F23/2968—Transducers specially adapted for acoustic level indicators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • B06B1/0644—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element
DE9209977U 1991-08-09 1992-07-24 Expired - Lifetime DE9209977U1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE9209977U DE9209977U1 (de) 1991-08-09 1992-07-24

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19914126399 DE4126399A1 (de) 1991-08-09 1991-08-09 Ultraschall-wandler
DE19914138528 DE4138528C1 (en) 1991-08-09 1991-11-23 Ultrasonic transducer e.g. for level indicator - has diaphragm held between seals and flange in direct contact with attachment surface or via spacer
DE9209977U DE9209977U1 (de) 1991-08-09 1992-07-24

Publications (1)

Publication Number Publication Date
DE9209977U1 true DE9209977U1 (de) 1992-11-19

Family

ID=27202797

Family Applications (1)

Application Number Title Priority Date Filing Date
DE9209977U Expired - Lifetime DE9209977U1 (de) 1991-08-09 1992-07-24

Country Status (1)

Country Link
DE (1) DE9209977U1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994024524A1 (de) * 1993-04-10 1994-10-27 Endress + Hauser Gmbh + Co. Füllstandsmessgerät
DE19820208C2 (de) * 1997-12-18 2003-08-28 Fraunhofer Ges Forschung Piezoelektrischer Schwinger
DE10040180B4 (de) * 2000-08-17 2007-07-26 Vega Grieshaber Kg Füllstand- oder Druckmesssensoren mit schmutzabweisenden und/oder selbstreinigenden Eigenschaften
EP4083583A1 (de) * 2021-04-30 2022-11-02 Tekelek Group Holdings Limited Ultraschallabstandssensor und verfahren zum schutz eines ultraschallwandlers in einem ultraschallabstandssensor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994024524A1 (de) * 1993-04-10 1994-10-27 Endress + Hauser Gmbh + Co. Füllstandsmessgerät
US5866815A (en) * 1993-04-10 1999-02-02 Endress +Hauser Gmbh +Co. Fill-level indicator
DE19820208C2 (de) * 1997-12-18 2003-08-28 Fraunhofer Ges Forschung Piezoelektrischer Schwinger
DE10040180B4 (de) * 2000-08-17 2007-07-26 Vega Grieshaber Kg Füllstand- oder Druckmesssensoren mit schmutzabweisenden und/oder selbstreinigenden Eigenschaften
EP4083583A1 (de) * 2021-04-30 2022-11-02 Tekelek Group Holdings Limited Ultraschallabstandssensor und verfahren zum schutz eines ultraschallwandlers in einem ultraschallabstandssensor

Similar Documents

Publication Publication Date Title
DE9101110U1 (de)
DE4290032T1 (de)
DE9102196U1 (de)
DE9102219U1 (de)
DE9101419U1 (de)
DE9100911U1 (de)
DE9102470U1 (de)
DE9103122U1 (de)
DE9101352U1 (de)
DE9101162U1 (de)
DE9101880U1 (de)
DE9103100U1 (de)
DE9102450U1 (de)
DE9102903U1 (de)
DE9103216U1 (de)
DE9101497U1 (de)
DE9101746U1 (de)
DE9102192U1 (de)
DE9101530U1 (de)
DE9102614U1 (de)
DE9101806U1 (de)
DE9102096U1 (de)
DE9101079U1 (de)
DE9102818U1 (de)
DE9101047U1 (de)