• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Procedure to measure the level (14) of a liquid (13) by means of elastic waves, such liquid (13) being contained within an axially moving tube (11) and cooperating with a filler tube (12), the filler tube (12) being used as an element in the transmission of elastic waves to the liquid (13), such elastic waves being picked up (16) outside the axially moving tube (11). Device (10) to carry out the above procedure, which device (10) cooperates with a filler tube (12) and comprises: - at least one transducer (15) to transmit energisation of the vibration of the filler tube (12), and - at least one receiver transducer (16) located outside the axially moving tube (11).
    公开号:SU1667640A3
    申请号:SU864008374
    申请日:1986-01-07
    公开日:1991-07-30
    发明作者:Босколо Антонио
    申请人:Тетра Дев-Ко Консорцио Ди Студио Е Ричерка Индустриале (Фирма)；
    IPC主号:
    专利说明:

    ABOUT
    with
    to
    about

    Ca
    FIG. /
    The invention relates to a measurement technique, namely, devices for measuring the level of a liquid.
    The purpose of the invention is to improve the accuracy of measuring the level of a liquid.
    Figures 1, 2 and 3 show various variants of the proposed device for measuring the level of a liquid; figure 4 is a variant of the piezoelectric shaper vnpynix waves.
    The device comprises an inlet tube 1 located in the liquid 2 and rigidly mounted inside a flexible pipe, for example a cardboard tube 3, mounted for movement in front of the shaper of a liquid level signal. The shaper of the liquid level signal is made in the form of a transducer and elastic waves into a liquid level signal, the upper and lower edges of which are located respectively above and below the liquid level 2. In this case, the elastic wave converter 4 into the liquid level signal can be made or in the form of a matrix of 5 elastic receivers waves (Fig. 2), or in the form of a parabolic reflector 6, a rotating mirror 7, and a receiver 8 of elastic waves (Fig. 3).
    The device also contains a piezoelectric driver 9 elastic waves, coupled with the upper part of the inlet tube 1. The piezoelectric driver 9 elastic waves (figure 4) contains ceramic elements 10, the adapter 11 acoustic impedance and the installation screw 12. In this case the adapter 11 acoustic impedance is installed the ability to adapt the acoustic impedance between the piezoelectric driver 9 elastic waves and the inlet tube 1, and the set screw 12 - with the ability to provide a pre-load on the ceramic Kie elements 10.
    The operation of the proposed device for measuring the level of a liquid occurs as follows.
    The elastic wave former 9 generates ultrasonic oscillation in the inlet tube 1. The ultrasonic oscillation is transmitted from the piezoelectric elastic wave former 9 through the inlet tube 1 to the liquid 2 and from it to the wall of the cardboard tube 3. The wall of the cardboard tube 3 emits an ultrasonic oscillation acting on converter 4 elastic waves to level signal
    fluid. Here, due to the different conditions created by the cardboard tube 3 for ultrasonic oscillation above and below the liquid level 2, the elastic wave converter 4 into the liquid level signal provides the determination of the liquid level 2.
    In the embodiment of the device shown in FIG. 2, in the converter of elastic waves into a liquid level signal, receivers of elastic waves of a matrix of 5 receivers of elastic waves generate signals characterizing ultrasonic oscillation along the wall of the cardboard tube 3, while the level of liquid 2 is determined by the position of two adjacent receivers of elastic waves of the matrix 5; receivers of elastic waves, the readings of which are different.
    In the embodiment of the device shown in FIG. 3, in the elastic wave converter 4
    In the liquid level signal, the parabolic reflector 6 reflects ultrasonic oscillation in the direction of the rotating mirror 7 located at the focus of the parabola and providing scanning along the tube forming the wall 3. At the same time, ultrasonic oscillation affects the receiver 8 of the elastic waves corresponding to different points forming the tube wall 3, which provides formation
    signal characterizing the level of the liquid 2.
    权利要求:
    Claims (1)
    [1]
    Invention Formula
    A device for measuring the level of a fluid, comprising an inlet tube located in a fluid and rigidly mounted in a tube mounted for axial displacement in front of
    Fluid level signal shaper, characterized in that, in order to improve the measurement accuracy, a piezoelectric elastic wave shaper is coupled to the upper part
    the inlet tube, and the shaper of the fluid level signal is made in the form of an elastic wave transducer into a fluid level signal, the upper and lower edges of which are located above and below, respectively
    the fluid level along the tube generators, wherein the converter of elastic waves into the signal of the fluid level is made in the form of a matrix of receivers of elastic waves or in the form of a parabolic reflector, a rotating mirror and a receiver of elastic waves.
    Phage. 2
    Fig.Z
    FIG L
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1667640A3|1991-07-30|Device for measuring liquid level
    US5119676A|1992-06-09|Ultrasonic method and apparatus for determining water level in a closed vessel
    US4914959A|1990-04-10|Ultrasonic flow meter using obliquely directed transducers
    EP1434039B1|2012-05-09|Liquid level measuring device
    US5568449A|1996-10-22|Methods and apparatus for use in ultrasonic ranging
    DK31490A|1990-02-07|Ultrasonic GENNEMSTROEMNINGSMAALEINDRETNING
    US4011473A|1977-03-08|Ultrasonic transducer with improved transient response and method for utilizing transducer to increase accuracy of measurement of an ultrasonic flow meter
    US20040129088A1|2004-07-08|Single-body dual-chip orthogonal sensing transit-time flow device using a parabolic reflecting surface
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    RU2580907C1|2016-04-10|Ultrasonic waveguide level meter for liquid
    US3204457A|1965-09-07|Ultrasonic flowmeter
    US6360599B1|2002-03-26|Device for measuring liquid level preferably measuring tide level in sea
    GB2152667A|1985-08-07|Liquid level gauge
    JPS5883256A|1983-05-19|Ultrasonic non-destructive inspecting device
    JP3136002B2|2001-02-19|Ultrasonic flow meter
    JPH01156661A|1989-06-20|Joint part survey instrument
    CA1299728C|1992-04-28|Pressure sensor
    US4031503A|1977-06-21|Anti-corrosion ultrasonic transducer
    JPH06249697A|1994-09-09|Ultrasonic liquid-level indicator
    CN105486381A|2016-04-13|Sound wave water level gauge
    SU537253A1|1976-11-30|Ultrasonic Liquid Level Meter
    SU1747929A1|1992-07-15|Ultrasonic device for studying liquids
    SU308781A1|1974-08-15|ULTRASONIC LEVEL SENSOR
    SU1221583A1|1986-03-30|Acoustic chamber
    SU1719919A1|1992-03-15|Device to measure propagation parameters of ultrasound in liquid fluids
    同族专利:
    公开号 | 公开日
    KR900004738B1|1990-07-05|
    AU5162485A|1986-07-17|
    IT8583305D0|1985-01-09|
    CA1250655A|1989-02-28|
    EP0190474B1|1989-11-29|
    AT48313T|1989-12-15|
    KR860006035A|1986-08-16|
    JPS61175525A|1986-08-07|
    CN1014092B|1991-09-25|
    EP0190474A1|1986-08-13|
    CN86100127A|1986-07-16|
    AU584150B2|1989-05-18|
    US4675660A|1987-06-23|
    DE3574495D1|1990-01-04|
    IT1187521B|1987-12-23|
    BR8600033A|1986-09-23|
    ZA859876B|1986-09-24|
    引用文献:
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    US2787160A|1953-06-29|1957-04-02|Sperry Prod Inc|Ultrasonic liquid depth indicator|
    US2998723A|1956-06-15|1961-09-05|Acoustica Associates Inc|Sonic wave conductor|
    US3520186A|1968-03-11|1970-07-14|Nat Sonics Corp|Ultrasonic fluid interface sensing|
    US3851333A|1969-07-31|1974-11-26|S Fishman|Spray injection for testing an ultrasonic liquid level detector|
    US3911642A|1972-09-22|1975-10-14|Tetra Pak Int|Method for the sterile packing of a sterile material|
    FR2370638B1|1976-11-12|1981-09-11|Marchadour Yves|
    US4182177A|1978-05-19|1980-01-08|Kamyr, Incorporated|Sound emission level detection|
    JPS5517138A|1978-07-24|1980-02-06|Konishiroku Photo Ind Co Ltd|Remaining quantity detector of toner for electrophotographic copier|
    GB2027539B|1978-08-09|1983-09-21|Marconi Co Ltd|Measurement of the density of liquids|
    SE445262B|1980-10-29|1986-06-09|Brajnandan Sinha|DEVICE FOR SEALING AND INDICATING THE FLUIDUM LEVEL IN KERL|
    US4437497A|1981-09-23|1984-03-20|Enander Frederick A|Ultrasonic control of filling a container|
    DE3216604A1|1982-05-04|1983-11-10|Seitz Enzinger Noll Maschinenbau Ag, 6800 Mannheim|FILLING ELEMENT FOR VESSEL FILLING MACHINES FOR FILLING STILLER OR CARBONIC LIQUIDS|
    SE454167B|1982-09-27|1988-04-11|Tetra Pak Ab|SET AND DEVICE FOR MANUFACTURING PACKAGING CONTAINERS|
    GB8315650D0|1983-06-07|1983-07-13|Scheme Eng Ltd|Liquid presence sensors|FR2596515B1|1986-03-28|1992-07-03|Univ Paris Curie|LIQUID LEVEL SENSOR WITH GUIDED ELASTIC WAVES|
    SE466418B|1989-02-23|1992-02-10|Bror Allan Eriksson|METHOD OF EXAMINATION FOR EXAMINATION OF A LIQUID FILLING IN A CONTAINER AND THE DEVICE TO DETERMINE THE LEVEL OF A OR MULTIPLE INTERFACE WITH A WATER FILLING IN A CONTAINER|
    JPH04118525A|1989-12-28|1992-04-20|Kureha Chem Ind Co Ltd|Detecting method for liquid level in moving cylindrical body|
    US5085077A|1991-01-07|1992-02-04|Capscan Sales Incorporate|Ultrasonic liquid measuring device for use in storage tanks containing liquids having a non-uniform vapor density|
    IT1269723B|1994-05-09|1997-04-15|Tetra Brik Res Dev Spa|METHOD AND EQUIPMENT TO REGISTER A CONTENT LEVEL|
    US5922030A|1995-12-20|1999-07-13|Nartron Corporation|Method and system for controlling a solid product release mechanism|
    IT1307699B1|1999-05-14|2001-11-14|Tetra Laval Holdings & Finance|PACKAGING MACHINE FOR THE CONTINUOUS PRODUCTION OF SEALED PACKAGES CONTAINING A VERSABLE FOOD PRODUCT|
    US6397909B1|1999-11-03|2002-06-04|Dispensing Systems, Inc.|Apparatus and method for dispensing a carbonated beverage with minimal/controlled foaming under system pressure|
    US6354342B1|1999-11-10|2002-03-12|Shurflo Pump Manufacturing Company, Inc.|Hand-held rapid dispensing apparatus and method|
    US6360556B1|1999-11-10|2002-03-26|Shurflo Pump Manufacturing Company, Inc.|Apparatus and method for controlling fluid delivery temperature in a dispensing apparatus|
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    US20040232173A1|1999-11-10|2004-11-25|Michael Saveliev|Rapid comestible fluid dispensing apparatus and method|
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    US8100006B2|2006-08-21|2012-01-24|Engineering Technologies Canada Ltd.|Liquid level measurement device and installation incorporating the same|
    DE102011088880A1|2011-12-16|2013-06-20|Robert Bosch Gmbh|Tubular bag machine for filling a product|
    KR101299050B1|2011-12-30|2013-08-21|한국항공우주연구원|Progressive Wave Tube for Fatigue test|
    US9528870B2|2013-02-18|2016-12-27|Steven H. Romweber|Liquid reduction timing device|
    DE102014107393B4|2014-05-26|2020-04-23|Krohne S. A. S.|End element for level measuring device and level measuring device|
    KR101601719B1|2014-08-28|2016-03-09|한국항공우주연구원|Energy sonic simulation tube of heat torch flame and simulation method by the same|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    IT83305/85A|IT1187521B|1985-01-09|1985-01-09|PROCEDURE FOR MEASURING THE LEVEL OF A LIQUID BY ELASTIC WAVES AND DEVICE CARRYING OUT THIS PROCEDURE|
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