JP2003348681A5 - - Google Patents
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- JP2003348681A5 JP2003348681A5 JP2002273136A JP2002273136A JP2003348681A5 JP 2003348681 A5 JP2003348681 A5 JP 2003348681A5 JP 2002273136 A JP2002273136 A JP 2002273136A JP 2002273136 A JP2002273136 A JP 2002273136A JP 2003348681 A5 JP2003348681 A5 JP 2003348681A5
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- acoustic matching
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Description
本発明の第７態様によれば、上記音響整合層の面積は、上記板状部材の面積の１００〜１１０％である第１〜６のいずれか１つの態様に記載の超音波振動子を提供する。
According to a seventh aspect of the present invention, there is provided the ultrasonic transducer according to any one of the first to sixth aspects, wherein the area of the acoustic matching layer is 100 to 110% of the area of the plate-like member. Do.
Claims (9)
前記超音波振動子は、板状部材（３）と、上記板状部材の一方の面に接着層（３０）を介して設置した音響整合層（４）と、上記板状部材の上記音響整合層が設けられた面と反対側の面に接合層（３１）を介して設置した圧電体（６）とを備え、上記音響整合層の設置面積は、上記圧電体が上記板状部材と接合される接合面積以上、あるいは上記圧電体が上記板状部材を介して上記音響整合層に対向する面積以上である超音波流量計。 A flow rate measuring unit through which the fluid to be measured flows, a pair of ultrasonic transducers provided in the flow rate measuring unit for transmitting and receiving ultrasonic waves, and driving the one ultrasonic transducer according to the main resonance mode and the secondary resonance mode An ultrasonic flowmeter comprising: means for performing, a measuring circuit for measuring a propagation time between the ultrasonic transducers, and a flow calculating means for calculating a flow based on a signal from the measuring circuit,
The ultrasonic transducer includes a plate-like member (3), an acoustic matching layer (4) disposed on one surface of the plate-like member via an adhesive layer (30), and the acoustic matching of the plate-like member And a piezoelectric body (6) installed via a bonding layer (31) on the surface opposite to the surface on which the layer is provided, and in the installation area of the acoustic matching layer, the piezoelectric body is bonded to the plate-like member An ultrasonic flowmeter having a bonding area or more, or an area over which the piezoelectric body faces the acoustic matching layer via the plate-like member.
前記超音波振動子は、板状部材（３）と、上記板状部材の一方の面に接着層（３０）を介して設置した音響整合層（４）と、上記板状部材の上記音響整合層が設けられた面と反対側の面に接合層（３１）を介して設置した圧電体（６）とを備え、上記板状部材の上記音響整合層に対する対向面積は、上記板状部材と上記音響整合層とが上記接着層を介して接合される接合面積以上、あるいは上記音響整合層が上記板状部材に対向する対向面積以上である超音波流量計。 A flow rate measuring unit through which the fluid to be measured flows, a pair of ultrasonic transducers provided in the flow rate measuring unit for transmitting and receiving ultrasonic waves, and driving the one ultrasonic transducer according to the main resonance mode and the secondary resonance mode An ultrasonic flowmeter comprising: means for performing, a measuring circuit for measuring a propagation time between the ultrasonic transducers, and a flow calculating means for calculating a flow based on a signal from the measuring circuit,
The ultrasonic transducer includes a plate-like member (3), an acoustic matching layer (4) disposed on one surface of the plate-like member via an adhesive layer (30), and the acoustic matching of the plate-like member And a piezoelectric body (6) installed via a bonding layer (31) on the surface opposite to the surface on which the layer is provided, and the opposing area of the plate-like member to the acoustic matching layer is the plate-like member An ultrasonic flowmeter having a bonding area or more joined with the acoustic matching layer via the adhesive layer, or a facing area or more where the acoustic matching layer faces the plate-like member.
前記超音波振動子は、板状部材（３）と、上記板状部材の一方の面に接着層（３０）を介して設置した音響整合層（４）と、上記板状部材の上記音響整合層が設けられた面と反対側の面に接合層（３１）を介して設置した圧電体（６）とを備え、上記板状部材の上記圧電体に対する対向面積は、上記接着層を介して上記板状部材と上記圧電体が接合される接合面積以上、あるいは上記板状部材と上記圧電体が対向する対向面積以上である超音波流量計。 A flow rate measuring unit through which the fluid to be measured flows, a pair of ultrasonic transducers provided in the flow rate measuring unit for transmitting and receiving ultrasonic waves, and driving the one ultrasonic transducer according to the main resonance mode and the secondary resonance mode An ultrasonic flowmeter comprising: means for performing, a measuring circuit for measuring a propagation time between the ultrasonic transducers, and a flow calculating means for calculating a flow based on a signal from the measuring circuit,
The ultrasonic transducer includes a plate-like member (3), an acoustic matching layer (4) disposed on one surface of the plate-like member via an adhesive layer (30), and the acoustic matching of the plate-like member A piezoelectric body (6) disposed via a bonding layer (31) on the surface opposite to the surface on which the layer is provided, and the facing area of the plate-like member to the piezoelectric material is via the adhesive layer the plate-like member and the piezoelectric body is more junction area Ru are bonded, or the plate-like member and the ultrasonic flow meter is facing area over which the piezoelectric body is opposite.
前記超音波振動子は、板状部材（３）と、上記板状部材の一方の面に接着層（３０）を介して設置した音響整合層（４）と、上記板状部材の上記音響整合層が設けられた面と反対側の面に接合層（３１）を介して設置した圧電体（６）とを備え、上記音響整合層の対向面積は上記圧電体が上記板状部材と接合される面の接合面積以上、あるいは上記圧電体が上記板状部材を介して上記音響整合層に対向する対向面積以上、かつ上記板状部材の対向面積は上記板状部材と上記音響整合層が上記接着層を介して接合される接合面積以上、あるいは上記音響整合層が上記板状部材に対向する対向面積以上である超音波流量計。 A flow rate measuring unit through which the fluid to be measured flows, a pair of ultrasonic transducers provided in the flow rate measuring unit for transmitting and receiving ultrasonic waves, and driving the one ultrasonic transducer according to the main resonance mode and the secondary resonance mode An ultrasonic flowmeter comprising: means for performing, a measuring circuit for measuring a propagation time between the ultrasonic transducers, and a flow calculating means for calculating a flow based on a signal from the measuring circuit,
The ultrasonic transducer includes a plate-like member (3), an acoustic matching layer (4) disposed on one surface of the plate-like member via an adhesive layer (30), and the acoustic matching of the plate-like member A piezoelectric body (6) disposed via a bonding layer (31) on the surface opposite to the surface on which the layer is provided, and the facing area of the acoustic matching layer is obtained by bonding the piezoelectric material to the plate-like member Or more, or more than the facing area where the piezoelectric body faces the acoustic matching layer via the plate-like member, and the facing area of the plate-like member is the plate-like member and the acoustic matching layer An ultrasonic flowmeter having a bonding area or more joined through an adhesive layer or more or an opposing area in which the acoustic matching layer faces the plate-like member.
前記超音波振動子は、板状部材（３）と、上記板状部材の一方の面に接着層（３０）を介して設置した音響整合層（４）と、上記板状部材の上記音響整合層が設けられた面と反対側の面に接合層（３１）を介して設置した圧電体（６）とを備え、上記接着層の対向面積は上記圧電体が上記板状部材と接合される接合面の接合面積以上、あるいは上記圧電体が上記接着層に対向する対向面積以上である超音波流量計。 A flow rate measuring unit through which the fluid to be measured flows, a pair of ultrasonic transducers provided in the flow rate measuring unit for transmitting and receiving ultrasonic waves, and driving the one ultrasonic transducer according to the main resonance mode and the secondary resonance mode An ultrasonic flowmeter comprising: means for performing, a measuring circuit for measuring a propagation time between the ultrasonic transducers, and a flow calculating means for calculating a flow based on a signal from the measuring circuit,
The ultrasonic transducer includes a plate-like member (3), an acoustic matching layer (4) disposed on one surface of the plate-like member via an adhesive layer (30), and the acoustic matching of the plate-like member A piezoelectric body (6) disposed via a bonding layer (31) on the surface opposite to the surface on which the layer is provided, and the opposing area of the adhesive layer is such that the piezoelectric is bonded to the plate-like member An ultrasonic flowmeter having a bonding area or more of a bonding surface or a facing area or more in which the piezoelectric body faces the adhesive layer.
前記超音波振動子は、板状部材（３）と、上記板状部材の一方の面に接着層（３０）を介して設置した音響整合層（４）と、上記板状部材の上記音響整合層が設けられた面と反対側の面に接合層（３１）を介して設置した圧電体（６）とを備え、上記接着層の対向面積は上記音響整合層が上記板状部材と接合する接合面積以上、あるいは上記音響整合層が上記接着層に対向する対向面積以上である超音波流量計。 A flow rate measuring unit through which the fluid to be measured flows, a pair of ultrasonic transducers provided in the flow rate measuring unit for transmitting and receiving ultrasonic waves, and driving the one ultrasonic transducer according to the main resonance mode and the secondary resonance mode An ultrasonic flowmeter comprising: means for performing, a measuring circuit for measuring a propagation time between the ultrasonic transducers, and a flow calculating means for calculating a flow based on a signal from the measuring circuit,
The ultrasonic transducer includes a plate-like member (3), an acoustic matching layer (4) disposed on one surface of the plate-like member via an adhesive layer (30), and the acoustic matching of the plate-like member The piezoelectric body (6) disposed via the bonding layer (31) on the surface opposite to the surface on which the layer is provided, and the opposing area of the adhesive layer is determined by bonding the acoustic matching layer to the plate-like member that junction area than, or ultrasonic flowmeter is facing area over which the acoustic matching layer opposite to the adhesive layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002273136A JP3629481B2 (en) | 2002-03-19 | 2002-09-19 | Ultrasonic vibrator and ultrasonic flow meter using the same |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002-75779 | 2002-03-19 | ||
| JP2002075779 | 2002-03-19 | ||
| JP2002273136A JP3629481B2 (en) | 2002-03-19 | 2002-09-19 | Ultrasonic vibrator and ultrasonic flow meter using the same |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2003348681A JP2003348681A (en) | 2003-12-05 |
| JP3629481B2 JP3629481B2 (en) | 2005-03-16 |
| JP2003348681A5 true JP2003348681A5 (en) | 2005-06-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002273136A Expired - Fee Related JP3629481B2 (en) | 2002-03-19 | 2002-09-19 | Ultrasonic vibrator and ultrasonic flow meter using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3629481B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005274387A (en) * | 2004-03-25 | 2005-10-06 | Matsushita Electric Ind Co Ltd | Apparatus for measuring flow of fluid |
| JP5240121B2 (en) * | 2009-08-20 | 2013-07-17 | パナソニック株式会社 | Fluid flow measuring device |
| JP5653274B2 (en) * | 2011-03-30 | 2015-01-14 | アズビル株式会社 | Diagnostic method and ultrasonic measurement device |
| JP6382707B2 (en) * | 2014-12-18 | 2018-08-29 | 京セラ株式会社 | Sound generator and speaker equipped with the same |
-
2002
- 2002-09-19 JP JP2002273136A patent/JP3629481B2/en not_active Expired - Fee Related
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