CN2391234Y - Wide-angle ultrasound wave transducer - Google Patents
Wide-angle ultrasound wave transducer Download PDFInfo
- Publication number
- CN2391234Y CN2391234Y CN99207552U CN99207552U CN2391234Y CN 2391234 Y CN2391234 Y CN 2391234Y CN 99207552 U CN99207552 U CN 99207552U CN 99207552 U CN99207552 U CN 99207552U CN 2391234 Y CN2391234 Y CN 2391234Y
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- ultrasonic
- ultrasonic transducer
- reflection cone
- curve
- cone
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- Expired - Fee Related
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- 238000002604 ultrasonography Methods 0.000 title description 6
- 238000009434 installation Methods 0.000 claims description 3
- 230000008054 signal transmission Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000037237 body shape Effects 0.000 abstract 1
- 230000003068 static effect Effects 0.000 abstract 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Transducers For Ultrasonic Waves (AREA)
Abstract
The utility model relates to an ultrasonic transducer which is mainly applied to a device which needs a wide transmitting angle or a wide receiving angle and carries out signal transfer between an ultrasonic transmitter or an ultrasonic reflector which represents a dynamic point and an ultrasonic receiver which represents a static point. The utility model is especially applied to touch type input equipment which utilizes ultrasonic multiple points to measure distances for realizing the positioning in a multimedia computer. The utility model is characterized in that an ultrasonic reflecting cone which is in the shape of a rotary body shape is coaxially arranged in front of the working face of the general ultrasonic transducer with a plane vibration mode; the tip of the ultrasonic reflecting cone points to the working face. The structure has the advantages of controllable reflecting angles, simple design, easy production and low cost.
Description
The present invention relates to a kind of ultrasonic emitting or receiving transducer, being mainly used in needs wide emission or acceptance angle, between the dead point of the moving point of ultrasonic emitting or reflection unit representative and ultrasonic receiver representative, carry out the occasion that signal transmits, as use the receiver of a ultrasonic emitting or reverberator and a plurality of distribution installation and location aware, by measuring the distance of representing between subject matter emission or reverberator and each receiver, determine among the pick-up unit of subject matter position, particularly be applied to multimedia computer and utilize the ultrasound wave multiple point distance measurement to realize on the touch input device of location.
Existing general signal effective operating angle of the ultrasonic transducer of plane vibration pattern, promptly emission or acceptance angle all are limited, it is all the more so when frequency of ultrasonic is higher, this is that character by ripple is determined, therefore being applied in above-mentioned distribution is equipped with in the range positioning system of a plurality of receiving transducers, since receiver be installed in the emission or reverberator around, represent the emission of subject matter or the position of reverberator changing at any time, this just requires receiver to have very broad acceptance angle; And for transmitter, then requiring has approaching or equals 360 ° emission angle.This is difficult to realize for above-mentioned ultrasonic transducer.This is because if will be in certain zone, perhaps obtain broad operating angle in certain plane, the size of transducer is compared with the wavelength of being worked will be as far as possible little, but this shortens its effective operating distance by having caused emitted power sensitivity not enough or that receive to reduce.Therefore, in order to realize above-mentioned application, adopt following technology to realize usually: 1. use a plurality of transducer group to synthesize a wide-angle transducer; 2. use the wide-angle work on the tubular transducer realization plane, see that application number is 98101325.2 and 98101663.4 Chinese patent.But these two kinds of schemes all have weak point.At first, use the method for combination to be used for ultrasonic transmitter, can make sound field inhomogeneous, produce many peak valley points, make the reception instability of receiver because of hyperacoustic interference; Simultaneously, the characteristic close of this each transmitting transducer of structural requirement, the installation site strictness, whole structure is also complicated, the production cost height; Secondly, transducer for tubular, though sound field is very even, but owing to be not easy to install the resonance structure that increases radiation impedance, and its characteristic ssensitivity is descended, and for the lower application of frequency, the diameter of transducer again can not be very little, perhaps added to cause behind the resonance structure diameter or volume excessive and be difficult to practicality.
Purpose of the present invention just is the shortcoming at the ultrasonic transducer of such use, and a kind of new organization plan is provided, and under the very little situation of the volume increase of transducer, realizes ultrasound wave emission or reception equably on 360 ° wide-angle.
Concrete structure of the present invention is as follows: on the axis direction of the ultrasonic emitting of general closed planar vibration mode or receiving transducer workplace, the workplace of a most advanced and sophisticated directional transducer is installed, i.e. and the taper rotary body of emission or receiving plane, or abbreviate reflection cone as; This reflection cone is a kind of among cone, spheroid, spheroid, para-curve rotary body, the hyperbolic curve rotary body, it promptly is the part of certain curve among the above-mentioned curve by its axial section curve, or the part or all of complex of above-mentioned rotary body, and the rotation bodily form reflection cone of other particular curve or particular design.When this reflection cone and transducer are coaxial, just can be in its place ahead ultrasonic waves transmitted bundle reflexes to space around the transmitter side uniformly transmitter, perhaps the ultrasonic reflections in side periphery space to the receiving plane of receiver.
Because implementing the present invention only needs as requested, a specific reflection cone is installed in the place ahead at common ultrasonic transducer, so the present invention only need consider hyperacoustic reflection direction when design reflectivity is bored, needn't consider as other factorses such as wave interferences, so have simple in structure, design, handling ease, advantage that production cost is low; Especially when producing in batches, this reflection cone can use mould production, and its advantage is more outstanding; The maximum gauge of reflection cone is arranged as long as just can produce effective reflection again,, be more suitable for the needs of practical application so the volume of whole transducer and diameter are all very little greater than operation wavelength.In addition, use the reflection cone of different section curves, can also control parallel with transducer axis the plane in operating angle.
Below in conjunction with accompanying drawing embodiment of the present invention are described.
The one-piece construction synoptic diagram of Fig. 1 transducer
Fig. 2 axial section is the reflection cone of sphere or elliposoidal
Fig. 3 axial section is parabolical reflection cone
Fig. 4 axial section is straight line and hyp composite reflection awl
In Fig. 1, the 1st, common ultrasonic transducer, on its axis direction of the place ahead, transducer of workplace 2, be mounted with the reflection cone 3 of most advanced and sophisticated directional transducer workplace, be reflected according to the route shown in 4 from the ultrasound wave or the extraneous ultrasound wave that arrives of transducer 1 ultrasonic emitting, the 5th, mount pad.Among Fig. 26 is that axial section is sphere or elliposoidal reflection cone; Among Fig. 37 is that axial section is parabolical reflection cone; Reflection cone 8 among Fig. 4 is composited by circular cone 9 and hyperbolic curve rotary body 10.
Can make in various manners between ultrasonic transducer and the reflection cone to be installed together, as have the cylindrical outer casing of aperture, tinsel, net form support, and on fixing two parts of the structural member of other one or relative position.
The shape of the peripheral contour curve of reflection cone can design according to needed ultrasonic propagation direction and scope.As the reflection cone among Fig. 1 be one conical, according to the wave reflection principle, it is half of effective operating angle of transducer itself at effective operating angle of transducer axis direction that this shape can make the ultrasound wave that is reflected or receives, only changes hyperacoustic direction of propagation.If around transducer and reflection cone, add the coaxial shell that blocks, if do not consider the diffraction of ripple, just can within 360 °, control and perpendicular certain plane of its axis in the size of operating angle.
Claims (8)
1. one kind is mainly used in needs wide emission or acceptance angle, between the ultrasonic receiver of the ultrasonic emitting of the moving point of representative or reverberator and representative dead point, carry out the ultrasonic transducer that uses in the device of signal transmission, it is characterized in that: in the place ahead of the workplace of the ultrasonic transducer of plane vibration pattern, it is reflection cone that a taper rotary body is installed, and the workplace of above-mentioned transducer is pointed at the tip of this reflection cone.
2. ultrasonic transducer according to claim 1 is characterized in that: reflection cone and the coaxial installation of transducer.
3. ultrasonic transducer according to claim 1 and 2 is characterized in that: reflection cone is a cone.
4. ultrasonic transducer according to claim 1 and 2 is characterized in that: the axial section curve of reflection cone is the part of circle.
5. ultrasonic transducer according to claim 1 and 2 is characterized in that: the axial section curve of reflection cone is a parabolical part.
6. ultrasonic transducer according to claim 1 and 2 is characterized in that: the axial section curve of reflection cone is an oval part.
7. ultrasonic transducer according to claim 1 and 2 is characterized in that: the axial section curve of reflection cone is a hyp part.
8. ultrasonic transducer according to claim 1 and 2 is characterized in that: the axial section curve of reflection cone is a complex curve, and this complex curve is to constitute by at least two kinds among straight line, circle, ellipse, para-curve, the hyperbolic curve etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99207552U CN2391234Y (en) | 1999-03-30 | 1999-03-30 | Wide-angle ultrasound wave transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99207552U CN2391234Y (en) | 1999-03-30 | 1999-03-30 | Wide-angle ultrasound wave transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2391234Y true CN2391234Y (en) | 2000-08-09 |
Family
ID=34001503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99207552U Expired - Fee Related CN2391234Y (en) | 1999-03-30 | 1999-03-30 | Wide-angle ultrasound wave transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2391234Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103797379A (en) * | 2011-09-22 | 2014-05-14 | 皇家飞利浦有限公司 | Ultrasound measurement assembly for multidirectional measurement |
| CN104898110A (en) * | 2015-06-23 | 2015-09-09 | 深圳乐行天下科技有限公司 | Supersonic wave emitter and balance vehicle system capable of following automatically |
| US9194845B2 (en) | 2006-12-22 | 2015-11-24 | Giesecke & Devrient Gmbh | Device for outputting and/or receiving ultrasound and ultrasound sensor for inspecting a valuable document |
| CN105974420A (en) * | 2016-07-13 | 2016-09-28 | 南京邮电大学 | Ultrasonic positioning system based on reflection cones |
| CN107343243A (en) * | 2017-08-24 | 2017-11-10 | 出门问问信息科技有限公司 | One kind reflection cone and audio amplifier |
| CN108802682A (en) * | 2017-05-04 | 2018-11-13 | 北京凌宇智控科技有限公司 | A kind of ultrasonic module and signal receiver |
| US10694292B2 (en) | 2018-11-23 | 2020-06-23 | Quanta Computer Inc. | Environmental detection system and sound control method using the same |
-
1999
- 1999-03-30 CN CN99207552U patent/CN2391234Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9194845B2 (en) | 2006-12-22 | 2015-11-24 | Giesecke & Devrient Gmbh | Device for outputting and/or receiving ultrasound and ultrasound sensor for inspecting a valuable document |
| CN102636570B (en) * | 2006-12-22 | 2016-12-14 | 德国捷德有限公司 | Ultrasonic sensor and for processing the sensor for checking valuable documents of marketable securities |
| CN103797379A (en) * | 2011-09-22 | 2014-05-14 | 皇家飞利浦有限公司 | Ultrasound measurement assembly for multidirectional measurement |
| CN104898110A (en) * | 2015-06-23 | 2015-09-09 | 深圳乐行天下科技有限公司 | Supersonic wave emitter and balance vehicle system capable of following automatically |
| CN105974420A (en) * | 2016-07-13 | 2016-09-28 | 南京邮电大学 | Ultrasonic positioning system based on reflection cones |
| CN108802682A (en) * | 2017-05-04 | 2018-11-13 | 北京凌宇智控科技有限公司 | A kind of ultrasonic module and signal receiver |
| CN108802682B (en) * | 2017-05-04 | 2020-10-13 | 北京凌宇智控科技有限公司 | Ultrasonic assembly and signal receiver |
| CN107343243A (en) * | 2017-08-24 | 2017-11-10 | 出门问问信息科技有限公司 | One kind reflection cone and audio amplifier |
| US10694292B2 (en) | 2018-11-23 | 2020-06-23 | Quanta Computer Inc. | Environmental detection system and sound control method using the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent of invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE ADDRESS; FROM: JINCHUAN HOTEL, ZANANCHU, WUDAOKOU, BEIJING HAIDIAN DISTRICT TO: ROOM 1806, HUBEI PROV BUILDING, NO. 44, JIA, BAISHIQIAO ROAD, HAIDIAN DISTRICT, BEIJING CITY, 100081 |
|
| CP03 | Change of name, title or address |
Address after: 100081, room 44, Hubei Hotel, No. 1806, Shiqiao Road, Haidian District, Beijing Patentee after: Liu Zhonghua Address before: Beijing, Haidian District, Wudaokou temporary security department Jinchuan Hotel Patentee before: Liu Zhonghua |
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| C56 | Change in the name or address of the patentee |
Owner name: BEIJING GREEN VALLEY TECHNOLOGY CO. Free format text: FORMER NAME OR ADDRESS: LIU ZHONGHUA |
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| CP03 | Change of name, title or address |
Address after: 100083, room 2, unit 503, building 3, spring garden, Wudaokou, Beijing, Haidian District Patentee after: BEIJING QINGU TECHNOLOGY Co.,Ltd. Address before: 100081, room 44, Hubei Hotel, No. 1806, Shiqiao Road, Haidian District, Beijing Patentee before: Liu Zhonghua |
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| C56 | Change in the name or address of the patentee |
Owner name: ROOM 816, XUEZHIXUANSHANGWU HOUSE, NO. 16, XUEQING Free format text: FORMER NAME OR ADDRESS: ROOM 503, UNIT 3, BUILDING 3, WUDAOKOUZHANCHUNYUAN, HAIDIAN DISTRICT, BEIJING CITY, 100081 |
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| CP03 | Change of name, title or address |
Patentee address after: 100083, room 816, business building, 16 learning road, Haidian District, Beijing Patentee address before: 100081, room 3, unit 503, building 3, spring garden, Wudaokou, Beijing, Haidian District |
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| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Patentee address after: 100096 Beijing City, Changping District small town garden 5 Building 7 unit 305 room Patentee address before: 100083, room 816, business building, 16 learning road, Haidian District, Beijing |
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |