WO2010024017A1 - Dispositif de transmission/réception à ultrasons - Google Patents

Dispositif de transmission/réception à ultrasons Download PDF

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Publication number
WO2010024017A1
WO2010024017A1 PCT/JP2009/060723 JP2009060723W WO2010024017A1 WO 2010024017 A1 WO2010024017 A1 WO 2010024017A1 JP 2009060723 W JP2009060723 W JP 2009060723W WO 2010024017 A1 WO2010024017 A1 WO 2010024017A1
Authority
WO
WIPO (PCT)
Prior art keywords
ultrasonic
sound wave
moisture
wave
sound
Prior art date
Application number
PCT/JP2009/060723
Other languages
English (en)
Japanese (ja)
Inventor
中澤博昭
Original Assignee
株式会社オーバル
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 株式会社オーバル filed Critical 株式会社オーバル
Priority to KR1020107015906A priority Critical patent/KR101173372B1/ko
Priority to CN200980102547XA priority patent/CN101919263A/zh
Publication of WO2010024017A1 publication Critical patent/WO2010024017A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
    • G01F1/662—Constructional details
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/14—Casings, e.g. of special material
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers

Definitions

  • the ultrasonic volume meter is equipped with a constant tube 2 through which the body flows at a flow velocity.
  • the constant pipe 2 is provided with 3 4 facing each other with a degree of p.
  • An ultrasonic wave 5 is fixed to 3 and an ultrasonic wave 6 is fixed to the support 4 so as to face the same axis.
  • the sound wave 5 is in the direction indicated by the arrow b after receiving the ultrasonic wave, that is,
  • Sound waves are emitted toward 6.
  • the sound wave 5 6 has the same structure. Sound wave
  • the ultrasonic volume meter finds the difference between the above by adding a positive number of noises related to the object, and multiplies this speed by the area of the constant tube 2 to obtain the flow rate. I can learn.
  • the gap 2 between the 0 plane and the inner ridge 8 plane is formed in such a state that a large space is generated. 0 of 4 internal winging between 5 of 8 and above
  • 2 is used to send and receive sound waves 7 is provided to avoid sending 6 in the constant tube 2.
  • 7 is provided to prevent the body () from entering 2 above. Although 2 is a large space, it is sufficient for moisture to enter.
  • the reason for providing 7 is that the elastic body 7 is embedded by the body, and the elastic body 7 is also in a state of being bridged with respect to the inner wedge 8.
  • the ultrasonic waves are not transmitted to the gas, but instead are made into an internal wedge8, resulting in a problem in the ultrasonic waves and the possibility of measurement failure.
  • the present invention has a sonic body, a columnar plate-like shape, a substantially columnar shape, and a small-diameter fin located between them, and an ultrasonic element embedded in the sexual body. And a cylindrical uging to which the sexual body adheres, wherein the ugly sexual body has a dapping gap between the surface of the uging and the fin.
  • the ultrasonic device having a space between the surface of the wedge and the surface, a plurality of convex portions are provided on the surface, and the diameter of the portion is adjusted to increase the width actively.
  • forming the ugly body in such a manner that it is formed in a constant tube that transmits and receives ultrasonic waves, and the uging forms a uging that penetrates the uging. It is.
  • the above-described bright sound wave and the sound wave device according to the claim are characterized in that the position of the woog is set at four positions with a pitch in the direction of the woog.
  • the uzing in consideration of the position of the screw holes when supporting and fixing the inner gusset to the fixed tube through which the body flows (for example, four screw holes). And placed between the screw holes).
  • FIG. 4 is a diagram schematically showing ultrasonic quantity management.
  • FIG. 2 is a front view showing a state of a clear sonic device.
  • FIG. 7 is a diagram related to an ultrasonic device.
  • FIG. 8 (a) shows a conventional sonic volume meter
  • FIG. 8 (b) shows a conventional sonic meter
  • FIG. 6 is a diagram schematically showing the operation of an ultrasonic meter.
  • 2 is a front view showing the state of the operation of the clear sonicator
  • FIG. 3 is a front view of FIG. 2
  • FIG. 4 is an ultrasonic device.
  • the sonic meter 2 is configured such that the flow rate can be obtained from the difference between the ultrasonic waves and the ultrasonic waves that are alternately transmitted and received.
  • Sonicometer 2 is an ultrasonic
  • the calculation method can use a numerical difference that does not relate to the speed of sound, allowing a stable gas volume to be determined in degrees. It has become.
  • the measurement process is briefly explained below.
  • the flow velocity is obtained from the difference in the number of ultrasonic waves ((3)), and as a result, the flow rate is obtained (E (4)).
  • the clear sound wave 3 is provided with a wing 3 2 that is supported and fixed to the support 2 3 by screws.
  • the ultrasonic wave 3 includes a sex body 3 3 accommodated in the uging 32 and an ultrasonic wave 3 4 embedded in the sex body 3 3.
  • the Uzing 32 is manufactured, for example, by cutting a material made of stainless steel.
  • the wedge 32 has an internal wooging 3 5 to be inserted into the support 23, a flange 3 6 to be screwed to the support 23, and an external wooging 3 8 that is exposed to the support 2 3 and leads out the wiring 3 7.
  • the clear sound wave 3 is characterized by an internal woog 3 5, a sex body 3 3 accommodated in the woog 3 5, and a 3 9 formed between them (others are (The basic structure is the same as the conventional structure, and detailed description will be omitted.)
  • the Uzug 35 has a cylindrical shape, and this 4 is the fixed tube 22, that is, transmits and receives sound waves. It is formed to be exposed at ().
  • the wedge 35 has a predetermined length, and an annular flange 36 is provided on the wedge 35. When viewed in the plane of the Uzi 35 and the cross section, it is formed so as to be concentric with the center of the Uzi 3 2. In such an inner wedge 35, a plurality of wedges 42 are formed so as to penetrate the inner surface and the surface.
  • the wedges 42 are arranged in four locations with a pitch (90 pitch) in the direction of the inner wedge 35 (the number is an example. The number may be a plurality of deviations). )
  • the winging 42 is arranged at a position shifted by 45 from the screw 43 of the radiator 36.
  • the Uzing 42 is formed so as to extend along the above.
  • the sex body 33 has a plate-like 44, a column-like 45, and a small-diameter fin 46 positioned therebetween, and is formed in such a shape.
  • Sexual body 3 3 has one end 44 To the inner udging 3 5 (
  • 39 is formed in a space where moisture is extracted by this weight even if condensation occurs, and in a space where it is received by a body flowing through the measuring tube 22. 39 is supposed to be 4 to send and receive ultrasound. , 45 4 7 Between the internal wedge 35 4 8, there is clearly no conventional thing.
  • a plurality of 49 are arranged at a pitch in order to maintain the state of 39.
  • 4 is formed in four places with the following shape (assumed to be an example).
  • 4 9 is formed so that this end contacts the surface of the inner wedge 35.
  • 45 is formed in a shape in which the part continuous to the fin 46 is. In this part, it is difficult for moisture to stay.
  • a damper 50 is formed between the face 46 and the face of the inner wedge 35.
  • the sound wave 34 is a disc-shaped electric element 5 having a predetermined number, an impedance 52, and a
  • the sound wave 34 is the same as a conventional sonic wave.
  • the sound wave 34 is arranged so that the impedance 52 is exposed to the position 47 of 45.
  • the piezoelectric element 5 is driven.
  • the elastic body 33 When driven by a screw, the elastic body 33 is compressed and lengthened in the direction of the above-mentioned center due to the vibration of the elastic body 33, and the sound wave is transmitted and received through the impedance 52.
  • the body and the body are aligned, and the efficiency sound wave is emitted.
  • 45 of the elastic body 33 vibrates and propagates to the center fin 46.
  • the area of the fin 46 is small and the internal friction is large.
  • the sound wave 3 is not affected by moisture. Since the bright sound wave 3 is affected by moisture, it can perform normal measurement. This will be explained below.
  • Fig. 5 is an illustration of the enclosing unit for observing the sound of
  • Fig. 6 is a graph showing the results of the moisture enclosing test
  • 7 is a diagram relating to the ultrasonic device.
  • the moisture filling 6 is caused by flowing 5 S through the flow of the ultrasonic volume meter 6 2 through 6 3 64 and pressurizing the tank 65 with 0 ⁇ Pa to ⁇ 7 ⁇ ⁇ This creates a device that looks at the reverberations.
  • 6 6 indicates a volume meter.
  • the sonic meter 6 2 is provided with a deviation between the bright sound wave 3 or the conventional sound wave 5, 6 (8). Separation 6 is much more severe than actual usage because water flows through pipe 64. 0
  • the ultrasonic volume meter 62 is configured to measure the flow rate with a caliber of 5 (assuming the above example).
  • the graph of 6 represents the flow velocity (s) on the horizontal axis and time (s) on the horizontal axis, and the lower part of 2 S is omitted. This is the result of using the actual sound wave 3 in the glass. With 5 S flowing, water is filled with the point indicated by the arrow P, and water is filled with the point indicated by the arrow P 2. Stop. Gura et al.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electromagnetism (AREA)
  • Measuring Volume Flow (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

Un écart (39) est formé de manière à ce que, même en cas de condensation de vapeur à l'intérieur, la teneur en eau soit libérée à l'intérieur par le poids de la condensation de vapeur et par une pression négative appliquée dessus par un fluide à mesurer qui circule à travers un tuyau de mesure. L'écart (39) communique avec un espace de transmission/réception (41) pour transmettre/recevoir un ultrason. Une pluralité de projections sont disposées sur la surface extérieure de l'autre extrémité (45) à des pas égaux pour conserver l'état de l'écart (39). Une pluralité de trous à travers le logement (42) sont formés à l'intérieur d'un logement (35) de manière à s'étendre sur la surface intérieure et la surface extérieure de celui-ci.
PCT/JP2009/060723 2008-08-28 2009-06-05 Dispositif de transmission/réception à ultrasons WO2010024017A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020107015906A KR101173372B1 (ko) 2008-08-28 2009-06-05 초음파 송수파기
CN200980102547XA CN101919263A (zh) 2008-08-28 2009-06-05 超声波发送接收器

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008-219053 2008-08-28
JP2008219053A JP4341782B1 (ja) 2008-08-28 2008-08-28 超音波送受波器

Publications (1)

Publication Number Publication Date
WO2010024017A1 true WO2010024017A1 (fr) 2010-03-04

Family

ID=41253459

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2009/060723 WO2010024017A1 (fr) 2008-08-28 2009-06-05 Dispositif de transmission/réception à ultrasons

Country Status (4)

Country Link
JP (1) JP4341782B1 (fr)
KR (1) KR101173372B1 (fr)
CN (1) CN101919263A (fr)
WO (1) WO2010024017A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020216423A1 (fr) * 2019-04-24 2020-10-29 Kamstrup A/S Débitmètre à ultrasons

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004104378A (ja) * 2002-09-09 2004-04-02 Oval Corp 超音波送受波器

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4928534A (en) * 1986-07-10 1990-05-29 Kaijo Denki Co. Ltd. Socket structure for mounting ultrasonic gas flow measuring device with respect to gas flow pipe
JP4233445B2 (ja) * 2003-12-24 2009-03-04 旭有機材工業株式会社 超音波流量計

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004104378A (ja) * 2002-09-09 2004-04-02 Oval Corp 超音波送受波器

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020216423A1 (fr) * 2019-04-24 2020-10-29 Kamstrup A/S Débitmètre à ultrasons

Also Published As

Publication number Publication date
KR20100099299A (ko) 2010-09-10
JP4341782B1 (ja) 2009-10-07
JP2010056825A (ja) 2010-03-11
KR101173372B1 (ko) 2012-08-10
CN101919263A (zh) 2010-12-15

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