IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0414813
(2013-06-07)
|
등록번호 |
US-9528866
(2016-12-27)
|
우선권정보 |
DE-10 2012 013 916 (2012-07-16) |
국제출원번호 |
PCT/EP2013/061813
(2013-06-07)
|
국제공개번호 |
WO2014/012707
(2014-01-23)
|
발명자
/ 주소 |
- Wiest, Achim
- Grunwald, Sascha
- Brumberg, Oliver
- Frohlich, Thomas
- Berberig, Oliver
- Kissling, Beat
- Muller, Quirin
|
출원인 / 주소 |
- Endress + Hauser Flowtec AG
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
5 |
초록
▼
An ultrasonic, flow measuring device, comprising a measuring tube having a straight measuring tube axis, a transmitter for sending an acoustic signal on a first signal path, a receiver for receiving the acoustic signal on the first signal path and a number of reflection surfaces, on which the acoust
An ultrasonic, flow measuring device, comprising a measuring tube having a straight measuring tube axis, a transmitter for sending an acoustic signal on a first signal path, a receiver for receiving the acoustic signal on the first signal path and a number of reflection surfaces, on which the acoustic signal is reflected at least once on the first signal path, wherein minimum separations of at least three subsections from the measuring tube axis lie in the range 0.4-0.6 r, wherein r is the inner radius of the measuring tube.
대표청구항
▼
1. An ultrasonic, flow measuring device, comprising: a measuring tube having a straight measuring tube axis;a transmitter for sending an acoustic signal on a first signal path;a receiver for receiving the acoustic signal on the first signal path; anda number of reflection surfaces, on which the acou
1. An ultrasonic, flow measuring device, comprising: a measuring tube having a straight measuring tube axis;a transmitter for sending an acoustic signal on a first signal path;a receiver for receiving the acoustic signal on the first signal path; anda number of reflection surfaces, on which the acoustic signal is reflected at least once on the first signal path, wherein:the first signal path is composed of straight subsections, with:a) minimum separations of at least three subsections from the measuring tube axis (M) lie in the range 0.4-0.6 r, wherein r is the inner radius of the measuring tube;b) a first subsection, which defines a first axially parallel plane, has a directly corresponding second subsection, which defines a second axially parallel plane, which two planes extend through a first reflection surface and the normal vectors enclose an angle of less than 10°;c) a third subsection, which defines a third axially parallel plane, has a directly corresponding fourth subsection, which defines a fourth axially parallel plane, said two planes extend through a second reflection surface and the normal vectors enclose an angle of less than 10°, and the signal path describes in axial plan view a polygon, whose lateral points of intersection lie within, on or outside of the measuring tube,wherein a fifth subsection is directly corresponding to said second subsection via a fifth reflection surface and wherein said third subsection directly corresponds to said fifth subsection via third reflection surface. 2. The ultrasonic, flow measuring device as claimed in claim 1, wherein: third and fourth reflection surfaces are arranged consecutively on or in said measuring tube parallel to the measuring tube axis, and a fifth reflection surface and either:said transmitter; orsaid receiver; ora sixth reflection surface are arranged consecutively on or in the measuring tube parallel to the measuring tube axis, the signal path is composed of six or less, straight sub paths. 3. The ultrasonic, flow measuring device as claimed in claim 1, wherein: said transmitter, said receiver and said reflection surfaces are arranged or oriented in such a manner relative to one another in or on said measuring tube that the signal path describes in axial plan view a triangle, whose leg points of intersection lie within, on or outside of the measuring tube wall;the first and second subsections of the signal path extend along a first leg of the triangle;the first and second subsections of the signal path are subsections following consecutively, and that the third and fourth subsections of the signal path extend along a second leg of the triangle; andthe third and fourth subsections of the signal path are subsections following consecutively. 4. The ultrasonic, flow measuring device, as claimed in claim 1, wherein: the second subsection is formed by reflection of the first subsection on a first of the reflection surfaces and;the fourth subsection is formed by reflection of the third subsection on a second of the reflection surfaces. 5. The ultrasonic, flow measuring device as claimed in claim 1, wherein: the two planes according to feature b) and/or feature c) extend through the first and/or the second reflection surface and the normal vectors enclose an angle of less than 5°. 6. The ultrasonic, flow measuring device as claimed in claim 1, wherein: subsection bisecting points of at least three subsections have a separation of 0.45-0.55 r, from the measuring tube axis, wherein r is the inner radius of said measuring tube. 7. The ultrasonic, flow measuring device as claimed in claim 1, wherein: the ultrasonic, flow measuring device takes into consideration a rotation compensation of rotating flows. 8. The ultrasonic, flow measuring device as claimed in claim 1, wherein: said polygon is formed by a total of six subsections of the signal path. 9. The ultrasonic, flow measuring device, as claimed in claim 1, wherein: said measuring tube has a first portion of reduced inner diameter for flow compensation. 10. The ultrasonic, flow measuring device, as claimed in claim 9, wherein: the signal path extends within the first portion of said measuring tube. 11. The ultrasonic, flow measuring device as claimed in claim 9, wherein: an angle of inclination between a second portion of said measuring tube with greater inner diameter and the first portion with reduced inner diameter amounts to less than 15°. 12. The ultrasonic, flow measuring device as claimed in claim 11, wherein: an angle of inclination between a second portion of said measuring tube with greater inner diameter and the first portion with reduced inner diameter amounts to less than 10°. 13. The ultrasonic, flow measuring device as claimed in claim 11, wherein: an angle of inclination between a second portion of said measuring tube with greater inner diameter and the first portion with reduced inner diameter amounts to less than 6-8°. 14. The ultrasonic, flow measuring device as claimed in claim 1, wherein: said measuring tube has a front portion for rectifying the flow. 15. The ultrasonic, flow measuring device as claimed in claim 14, wherein: the signal path extends in the flow direction following said front portion. 16. The ultrasonic, flow meter as claimed in claim 14, wherein: a first portion with reduced inner diameter is arranged in the flow direction following said front portion. 17. The use of an ultrasonic, flow measuring device as claimed in claim 1 for determining flow velocity and/or volume flow of a medium flowing through said measuring tube following its flow through a bent-region of a pipeline. 18. The use of an ultrasonic, flow measuring device as claimed in claim 17, wherein: the ultrasonic, flow measuring device is arranged with a distance of 20D or less from the bent region of the pipeline, wherein D corresponds to the diameter of the pipeline. 19. The use as claimed in claim 18, wherein: the ultrasonic, flow measuring device is arranged with a distance of 10D or less from the bent region of a pipeline. 20. The ultrasonic, flow measuring device as claimed in claim 1, wherein: the two planes according to feature b) and/or feature c) extend through the first and/or the second reflection surface and the normal vectors enclose an angle of less than 2°. 21. The ultrasonic, flow measuring device as claimed in claim 1, wherein: the two planes according to feature b) and/or feature c) extend through the first and/or the second reflection surface and the normal vectors enclose an angle of less than 0.2°. 22. The use as claimed in claim 21, wherein: the ultrasonic, flow measuring device is arranged with a distance of 5D or less from the bent region of a pipeline. 23. The use as claimed in claim 21, wherein: the ultrasonic, flow measuring device is directly following the bent region of a pipeline. 24. The ultrasonic, flow measuring device as claimed in claim 1, wherein: subsection bisecting points of at least three subsections have a separation of 0.48-0.52 r from the measuring tube axis, wherein r is the inner radius of said measuring tube.
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