DE20303461U1 - Assessment and monitoring of a phase or phase mixture in a fluid container using a piezoelectric ceramic transducer disk that has a surface film brought into direct contact with the fluid under investigation - Google Patents

Assessment and monitoring of a phase or phase mixture in a fluid container using a piezoelectric ceramic transducer disk that has a surface film brought into direct contact with the fluid under investigation

Info

Publication number
DE20303461U1
DE20303461U1 DE2003203461 DE20303461U DE20303461U1 DE 20303461 U1 DE20303461 U1 DE 20303461U1 DE 2003203461 DE2003203461 DE 2003203461 DE 20303461 U DE20303461 U DE 20303461U DE 20303461 U1 DE20303461 U1 DE 20303461U1
Authority
DE
Grant status
Grant
Patent type
Prior art keywords
characterized
device according
phase
monitoring
pulse
Prior art date
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
DE2003203461
Other languages
German (de)
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.)
JAEGER FRANK MICHAEL
Original Assignee
JAEGER FRANK MICHAEL
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
Grant date

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22Details, e.g. general constructional or apparatus details
    • G01N29/222Constructional or flow details for analysing fluids
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22Details, e.g. general constructional or apparatus details
    • G01N29/28Details, e.g. general constructional or apparatus details providing acoustic coupling, e.g. water
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00Indexing codes associated with group G01N29/00
    • G01N2291/02Indexing codes associated with the analysed material
    • G01N2291/024Mixtures
    • G01N2291/02416Solids in liquids
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00Indexing codes associated with group G01N29/00
    • G01N2291/02Indexing codes associated with the analysed material
    • G01N2291/024Mixtures
    • G01N2291/02433Gases in liquids, e.g. bubbles, foams
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00Indexing codes associated with group G01N29/00
    • G01N2291/04Wave modes and trajectories
    • G01N2291/048Transmission, i.e. analysed material between transmitter and receiver

Abstract

Device for assessment and monitoring of a fluid phase of phase mixture in a monitored container. Said device comprises a piezoelectric element in the form of a piezo-ceramic disk, with film on one side of the disk that is direct contact with the liquid.

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text has not been detected electronically

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text has not been detected electronically

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text has not been detected electronically

Claims (10)

1. Vorrichtung zur Feststellung und/oder Überwachung einer flüssigen Phase oder eines Phasengemisches mit einem Ultraschallwandler, der in Höhe des zu überwachenden Füllstandes liegenden Messstelle in der Behälterwand montiert ist und ein piezokeramisches Element enthält, das bei Erregung mit einem Impuls vorgegebener Länge und Amplitude einen Ultraschall-Sendeimpuls erzeugt, der auf das zu überwachende Medium übertragen wird, und das Ultraschallschwingungen bei Anwesenheit eines ultraschalltransparenten Mediums Mehrfachechos des Sendeimpulses von der gegenüberliegenden Wand innerhalb eines vorgegebenen Zeitintervalls empfängt und/oder bei Anwesenheit eines ultraschallabsorbierenden und/oder streuenden Mediums, wie Suspensionen oder gasbeladene Flüssigkeiten, die durch den Sendeimpuls erzeugte erzwungene gedämpfte Schwingung des Schwingelementes aus dem in der Behälterwand angeordneten piezoelektrischen Elements hervorgerufene Impulse empfängt oder aber auch Kombination 1. A device for determining and / or monitoring a liquid phase or a phase mixture with an ultrasonic transducer of the measuring point lying at the level of the to be monitored liquid level is mounted in the container wall, and includes a piezoelectric ceramic element, which when energized with a pulse of predetermined length and amplitude a ultrasonic transmitting pulse is generated which is transmitted to the monitored medium, and the ultrasonic vibrations at the presence of an ultrasonically transparent medium receives multiple echoes of the transmitted pulse of the opposite wall within a predetermined time interval and / or in the presence of an ultrasonically absorbent and / or the scattering medium, such as suspensions or receives gas-laden fluids, the forced damped vibration generated by the transmission pulse of the oscillating member from the disposed in the container wall piezoelectric element caused pulses or even combination en von beiden erkennt und damit die Anwesenheit oder Abwesenheit eines Mediums und/oder dessen Transmissionseigenschaften ermittelt, dadurch gekennzeichnet , dass das piezoelektrische Element aus einer piezokeramischen Scheibe besteht, dessen der Flüssigkeit zugewanden Seite eine fest verbundene Folie besitzt und unmittelbar mit der Flüssigkeit in Berührung ist. en from both recognizes and determines the presence or absence of a medium and / or its transmission characteristics, characterized in that the piezoelectric element consists of a piezoceramic disc, which the fluid facing towards side has a foil is fixedly connected and is connected directly to the liquid in contact ,
2. dass die Folie auf der der Flüssigkeit zugewandten Seite aus einem beständigen Metall, zum Beispiel aus Edelstahl oder Titan besteht. 2. that the film is on the side facing the liquid side of a durable metal, such as stainless steel or titanium.
3. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Folie aus Kunststoff besteht. 3. Device according to claim 1, characterized in that the film consists of plastic.
4. Vorrichtung nach Anspruch 1 bis 3, dadurch gekennzeichnet, dass die Folie eine Dicke kleiner der halben Wellenlänge der Ultraschallfrequenz besitzt. 4. Device according to claim 1 to 3, characterized in that the film has a thickness less than the half wavelength of the ultrasonic frequency.
5. Vorrichtung nach Anspruch 1 bis 4, dadurch gekennzeichnet, dass die Folie stoffschlüssig mit dem Wandlergehäuse verbunden ist. 5. Device according to claim 1 to 4, characterized in that the film is firmly bonded to the transducer housing.
6. Vorrichtung nach Anspruch 1 bis 4, dadurch gekennzeichnet, dass die Folie formschlüssig mit dem Wandlergehäuse verbunden ist. 6. Device according to claim 1 to 4, characterized in that the foil is positively connected to the converter housing.
7. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Bauelementeplatine in die Vorrichtung zur Feststellung und/oder der Überwachung des Füllstandes im Wandlergehäuse integriert ist. 7. Device according to one of the preceding claims, characterized in that the components board is integrated in the device for detecting and / or monitoring the filling level in the transducer housing.
8. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass optisch eine Bereitschaftsmeldung im Wandlergehäuse integriert ist. 8. Device according to one of the preceding claims, characterized in that optically a ready message is integrated in the transducer housing.
9. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Bereitschaftsmeldung mit einem oder zwei Toren verbunden ist. 9. Device according to one of the preceding claims, characterized in that the readiness signal is connected to one or two ports.
10. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Impulslänge und Impulsamplitude einzeln oder gemeinsam analog oder digital über eine Datenleitung von einer entfernten Kontrollstelle einstellbar sind. 10. Device according to one of the preceding claims, characterized in that the pulse length and amplitude individually or jointly analog or digitally adjustable via a data line from a remote control point.
DE2003203461 2003-02-07 2003-02-07 Assessment and monitoring of a phase or phase mixture in a fluid container using a piezoelectric ceramic transducer disk that has a surface film brought into direct contact with the fluid under investigation Expired - Lifetime DE20303461U1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE2003105003 DE10305003A1 (en) 2003-02-07 2003-02-07 Liquid detection unit, comprises an ultrasound transducer located on a container wall, with a piezo electric element that produces an ultrasound impulse
DE2003203461 DE20303461U1 (en) 2003-02-07 2003-02-07 Assessment and monitoring of a phase or phase mixture in a fluid container using a piezoelectric ceramic transducer disk that has a surface film brought into direct contact with the fluid under investigation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2003203461 DE20303461U1 (en) 2003-02-07 2003-02-07 Assessment and monitoring of a phase or phase mixture in a fluid container using a piezoelectric ceramic transducer disk that has a surface film brought into direct contact with the fluid under investigation

Publications (1)

Publication Number Publication Date
DE20303461U1 true DE20303461U1 (en) 2003-08-28

Family

ID=27664569

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2003203461 Expired - Lifetime DE20303461U1 (en) 2003-02-07 2003-02-07 Assessment and monitoring of a phase or phase mixture in a fluid container using a piezoelectric ceramic transducer disk that has a surface film brought into direct contact with the fluid under investigation

Country Status (1)

Country Link
DE (1) DE20303461U1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10344741A1 (en) * 2003-09-25 2005-04-14 Endress + Hauser Gmbh + Co. Kg Sonic or ultrasonic transducer
DE10350086A1 (en) * 2003-10-27 2005-06-02 Siemens Ag Engine oil level sensor has disc shaped piezoelement with electrode contacts through fixing rod, bond wire or conducting spring

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10344741A1 (en) * 2003-09-25 2005-04-14 Endress + Hauser Gmbh + Co. Kg Sonic or ultrasonic transducer
US7411335B2 (en) 2003-09-25 2008-08-12 Endress + Hauser Gmbh + Co. Kg Sonic or ultrasonic transducer
DE10350086A1 (en) * 2003-10-27 2005-06-02 Siemens Ag Engine oil level sensor has disc shaped piezoelement with electrode contacts through fixing rod, bond wire or conducting spring
DE10350086B4 (en) * 2003-10-27 2007-11-08 Siemens Ag Sensor means for detecting a fill level or a viscosity of a fluid

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20030828

R150 Term of protection extended to 6 years

Effective date: 20060508

R157 Lapse of ip right after 6 years

Effective date: 20090901