CN1879976A - Spherical cap type concave spherical surface ultrasonic transducer - Google Patents
Spherical cap type concave spherical surface ultrasonic transducer Download PDFInfo
- Publication number
- CN1879976A CN1879976A CN 200510026718 CN200510026718A CN1879976A CN 1879976 A CN1879976 A CN 1879976A CN 200510026718 CN200510026718 CN 200510026718 CN 200510026718 A CN200510026718 A CN 200510026718A CN 1879976 A CN1879976 A CN 1879976A
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- piezoelectric ceramic
- ceramic piece
- spherical surface
- ultrasonic transducer
- concave spherical
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- 239000000919 ceramic Substances 0.000 claims abstract description 35
- 210000001364 upper extremity Anatomy 0.000 claims description 4
- 239000007788 liquid Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract 1
- 206010028980 Neoplasm Diseases 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
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- Transducers For Ultrasonic Waves (AREA)
Abstract
The invention relates to a spherical cap concave ultrasonic heat exchanger, which comprises a concave spherical piezoelectric ceramic sheet and frame, wherein the piezoelectric ceramic sheet is the concave spherical frame with uniform thickness whose working surface is concave; said piezoelectric ceramic sheet is mounted inside the frame to be fixed via compressing device; the center of piezoelectric ceramic sheet has round hole to mount the detector; the frame and the compressing device have fixing function, to avoid the back of piezoelectric ceramic sheet being contacted with couple liquid. The invention can avoid the defects of present technique, improve the focus property of ultrasonic wave, and reduce the sonic wave consumption, with small focus.
Description
Technical field
The present invention relates to ultrasonic heater, particularly a kind of spherical cap type concave spherical surface ultrasonic transducer that adopts ultrasonic mode of heating treatment tumour.
Background technology
The ultrasonic tumour that heats to treat is a kind of effective method for treatment that development in recent years is got up.The ultrasound emission of this therapeutic system partly has various forms, for example:
One, dull and stereotyped piezoelectric ceramic piece adds lens.
Two, be attached on the hardware of spherical cap type with some facet piezoelectric ceramic pieces, the normal of each piezoelectric ceramic piece is come together in a bit.
Three, several concave spherical surface piezoelectric ceramic pieces are fixed on the large circle, and its focus is separately converged at a bit, realize secondary focusing.
More than three kinds of modes its merits and demerits is respectively arranged, wherein weak point is comparatively obvious.First kind of mode for example is because the effect of lens causes ultrasonic attenuation bigger.The ultrasonic wave focus of the second way is bigger, and is difficult for concentrating.Though the third mode focus can be done lessly, the process of aiming at focus is comparatively complicated, and the sound field that is produced is very inhomogeneous.
Summary of the invention
Task of the present invention provides a kind of improved spherical cap type concave spherical surface ultrasonic transducer, and it has solved the lens problem and the ultrasonic wave focal issue of prior art.
Technical scheme of the present invention is as follows:
A kind of spherical cap type concave spherical surface ultrasonic transducer, it comprises concave spherical surface piezoelectric ceramic piece and shell, described concave spherical surface piezoelectric ceramic piece is that the uniform spherical crown shell of thickness shape, its working face are the piezoelectric ceramic piece of concave surface, this piezoelectric ceramic piece is settled in the enclosure, and be fixed by hold down gag, offer circular hole so that detector to be installed in the central authorities of piezoelectric ceramic piece.
Ultrasonic transducer of the present invention is made of spherical cap type concave spherical surface piezoelectric ceramic piece and shell, and central authorities offer circular hole at piezoelectric ceramic piece, so that detector is installed; Shell and hold down gag have played fixation, can make the back side of piezoelectric ceramic piece avoid the contact of coupling liquid.
Adopt ultrasonic transducer of the present invention to avoid the shortcoming of prior art, increased substantially hyperacoustic focusing performance, its focus can be done very for a short time, and the sound wave loss is little.
Description of drawings
Accompanying drawing is the structural representation of a kind of spherical cap type concave spherical surface ultrasonic transducer of the present invention.
The specific embodiment
Referring to accompanying drawing, a kind of spherical cap type concave spherical surface ultrasonic transducer of the present invention is equipped with concave spherical surface piezoelectric ceramic piece and shell 2.The concave spherical surface piezoelectric ceramic piece is spherical concave spherical surface piezoelectric ceramic piece 1, and its thickness is even, and concave spherical surface is a shell structure, and working face is a concave surface, and its center of curvature promptly is a geometrical focus.
This spherical concave spherical surface piezoelectric ceramic piece 1 is placed in the shell 2, and is fixed by hold down gag.As shown in FIG., hold down gag is made up of pressure ring 3 and bung flange 4, and pressure ring 3 places the upper limb of piezoelectric ceramic piece 1, and bung flange 4 spirals are on shell 2 inwalls and be pressed in pressure ring 3 tops.Bung flange 4 is pressed on piezoelectric ceramic piece 1 on the housing 2 by pressure ring 3, except the effect of playing fixing piezoelectric ceramic piece 1, also can prevent the back side of coupling liquid contact piezoelectric ceramic piece 1 like this.
Hold down gag also can constitute (not shown) by a compacting ring, and compacting ring is pressed in the upper limb of piezoelectric ceramic piece 1, has played the fixedly effect of piezoelectric ceramic piece 1 equally.This compacting ring can be made by elastomeric material, also can be made by rigid material.
Central authorities at piezoelectric ceramic piece 1 offer circular hole 5, so that detector is installed.
Spherical cap type concave spherical surface ultrasonic transducer of the present invention is widely used in the ultrasonic tumour that heats to treat.
Claims (5)
1. spherical cap type concave spherical surface ultrasonic transducer, it comprises concave spherical surface piezoelectric ceramic piece and shell, it is characterized in that, described concave spherical surface piezoelectric ceramic piece is that the uniform spherical crown shell of thickness shape, its working face are the piezoelectric ceramic piece of concave surface, this piezoelectric ceramic piece is settled in the enclosure, and be fixed by hold down gag, offer circular hole so that detector to be installed in the central authorities of piezoelectric ceramic piece.
2. spherical cap type concave spherical surface ultrasonic transducer according to claim 1 is characterized in that described hold down gag is made up of pressure ring and bung flange.
3. spherical cap type concave spherical surface ultrasonic transducer according to claim 2 is characterized in that described pressure ring places the upper limb of piezoelectric ceramic piece.
4. spherical cap type concave spherical surface ultrasonic transducer according to claim 2 is characterized in that, described bung flange spiral is in the enclosure on the wall and be pressed in the pressure ring top.
5. spherical cap type concave spherical surface ultrasonic transducer according to claim 1 is characterized in that described hold down gag is made of a compacting ring, is pressed in the upper limb of piezoelectric ceramic piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510026718 CN1879976A (en) | 2005-06-14 | 2005-06-14 | Spherical cap type concave spherical surface ultrasonic transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510026718 CN1879976A (en) | 2005-06-14 | 2005-06-14 | Spherical cap type concave spherical surface ultrasonic transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1879976A true CN1879976A (en) | 2006-12-20 |
Family
ID=37518466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510026718 Pending CN1879976A (en) | 2005-06-14 | 2005-06-14 | Spherical cap type concave spherical surface ultrasonic transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1879976A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101782378A (en) * | 2010-02-11 | 2010-07-21 | 浙江金利电子有限公司 | Micro-ultrasonic wave sensor |
| CN102176508A (en) * | 2010-12-24 | 2011-09-07 | 中国船舶重工集团公司第七一五研究所 | Preparation method of spherical-crown transmitting transducer with high frequency and wide wave beam |
| CN102579127A (en) * | 2011-01-14 | 2012-07-18 | 深圳市普罗惠仁医学科技有限公司 | Ultrasonic focusing energy transducer |
| CN108339728A (en) * | 2017-01-23 | 2018-07-31 | 中国科学院声学研究所 | A kind of energy converter and preparation method thereof based on spherical piezo-electricity composite material |
| CN108381305A (en) * | 2018-03-08 | 2018-08-10 | 天津大学 | A kind of spherical array focus ultrasonic fluid oscillation polishing system based on acoustic lens |
| CN108381304A (en) * | 2018-02-05 | 2018-08-10 | 天津大学 | A kind of focus ultrasonic fluid oscillation polishing method based on spherical shell PZT (piezoelectric transducer) |
| CN108838747A (en) * | 2018-08-10 | 2018-11-20 | 天津大学 | A kind of focus ultrasonic fluid oscillation polishing system based on acoustic lens |
| CN110026908A (en) * | 2019-04-30 | 2019-07-19 | 天津大学 | A kind of ultrasonic cavitation assisted jet polishing system and polishing method |
-
2005
- 2005-06-14 CN CN 200510026718 patent/CN1879976A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101782378A (en) * | 2010-02-11 | 2010-07-21 | 浙江金利电子有限公司 | Micro-ultrasonic wave sensor |
| CN101782378B (en) * | 2010-02-11 | 2011-12-21 | 浙江金利电子有限公司 | Micro-ultrasonic wave sensor |
| CN102176508A (en) * | 2010-12-24 | 2011-09-07 | 中国船舶重工集团公司第七一五研究所 | Preparation method of spherical-crown transmitting transducer with high frequency and wide wave beam |
| CN102176508B (en) * | 2010-12-24 | 2013-09-11 | 中国船舶重工集团公司第七一五研究所 | Preparation method of spherical-crown transmitting transducer with high frequency and wide wave beam |
| CN102579127A (en) * | 2011-01-14 | 2012-07-18 | 深圳市普罗惠仁医学科技有限公司 | Ultrasonic focusing energy transducer |
| CN102579127B (en) * | 2011-01-14 | 2014-09-03 | 深圳市普罗惠仁医学科技有限公司 | Ultrasonic focusing energy transducer |
| CN108339728A (en) * | 2017-01-23 | 2018-07-31 | 中国科学院声学研究所 | A kind of energy converter and preparation method thereof based on spherical piezo-electricity composite material |
| CN108381304A (en) * | 2018-02-05 | 2018-08-10 | 天津大学 | A kind of focus ultrasonic fluid oscillation polishing method based on spherical shell PZT (piezoelectric transducer) |
| CN108381305A (en) * | 2018-03-08 | 2018-08-10 | 天津大学 | A kind of spherical array focus ultrasonic fluid oscillation polishing system based on acoustic lens |
| CN108838747A (en) * | 2018-08-10 | 2018-11-20 | 天津大学 | A kind of focus ultrasonic fluid oscillation polishing system based on acoustic lens |
| CN110026908A (en) * | 2019-04-30 | 2019-07-19 | 天津大学 | A kind of ultrasonic cavitation assisted jet polishing system and polishing method |
| CN110026908B (en) * | 2019-04-30 | 2024-01-30 | 天津大学 | Ultrasonic cavitation auxiliary jet polishing system and polishing method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20061220 |