CN105890710A - Low-power wide-range ultrasonic probe - Google Patents
Low-power wide-range ultrasonic probe Download PDFInfo
- Publication number
- CN105890710A CN105890710A CN201410853047.2A CN201410853047A CN105890710A CN 105890710 A CN105890710 A CN 105890710A CN 201410853047 A CN201410853047 A CN 201410853047A CN 105890710 A CN105890710 A CN 105890710A
- Authority
- CN
- China
- Prior art keywords
- radiant panel
- low
- ultrasonic transducer
- power wide
- orifice plate
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Abstract
The invention provides a low-power wide-range ultrasonic probe. The low-power wide-range ultrasonic probe consists of a cylindrical ultrasonic transducer 1, a radiant panel 2, an acoustical transmission pore plate 3 and a flared opening 4, wherein the radiant panel 2 is adhered onto the front end of the ultrasonic transducer 1, the acoustical transmission pore plate 3 is placed at the front end of the radiant panel 2, and the flared opening 4 is additionally arranged in front of the outer sides of the radiant panel 2 and the acoustical transmission pore plate 3. The ultrasonic transducer 1, the radiant panel 2 and the acoustical transmission pore plate 3 are mounted in a casing body in the front of a plastic outer casing 5 and is fixed by a sealant 6, and the front end of the plastic outer casing 5 is integrated with the flared opening 4. A prepositioned signal amplifier 7 is arranged at the back part of the plastic outer casing 5, a lead of the ultrasonic transducer 1 is connected to the prepositioned signal amplifier 7, and the prepositioned signal amplifier 7 is connected with an external electronic unit through a signal cable. By utilizing the designed ultrasonic probe, a wide range and an excellent wave beam angle can be provided, and furthermore, the manufacturing is easy, the weight is light, the power is low, the driving voltage is low, and the manufacturing costs are low.
Description
Technical field
The present invention relates to a kind of range finding small-power wide range ultrasound probe, belong to level gauging technology neck
Territory.
Technical background
Ultrasound wave is the acoustic signals of more than 20KHZ, runs into solid or liquid surface when propagating in atmosphere
Time can be reflected back, the aerial spread speed of ultrasound wave is typically to determine, according to from ultrasound wave
It is transmitted into the time being reflected back, it is possible to determine the propagation distance of ultrasound wave, can according to this principle
To be used for measuring distance, it is judged that the position of object.
The existing ultrasonic range finder for level gauging, ultrasonic material level meter are (for liquid level, material position
Measure) etc. the wide range ultrasound probe that used generally use sandwich transducer to make, sandwich is changed
Can device by piezoelectric ceramic piece and front and back electrode constitute, from the point of view of the ultrasound probe of wide range, it is desirable to pressure
The sectional area of electroceramics sheet is very big, and thickness is also big, and the electrode front and back adhered to increases the most accordingly, such greatly
Range ultrasound probe manufacturing process is more complicated, and cost is high, and its weight is also big, needs thousands of during work
The voltage of volt drives, and the requirement to circuit is higher.Its machinery of the ultrasound probe of the most this wide range shakes
Energy is converted to the inefficient of Ultrasonic Radiation energy, and energy loss is big.
Summary of the invention
The present invention proposes a kind of new wide range ultrasound probe structure, have lightweight, make easily,
The feature that power is little, driving voltage is low, and functional, and range is big, and beam angle is little.
The sensor of this structure is by cylindrical ultrasound wave transducer, radiant panel, entrant sound orifice plate and horn mouth structure
Become.Radiant panel is adhered to ultrasonic transducer front end, and entrant sound orifice plate is placed in radiant panel front end, radiant panel and
The exterior front of entrant sound orifice plate is added with horn mouth.The mechanical vibration of ultrasonic transducer can be turned by radiant panel
Being changed to the ultrasound wave propagated in atmosphere, entrant sound orifice plate is the plastic plate with equally distributed aperture, its
Can make that the ultrasonic energy launched from radiant panel is break-even to blaze abroad, simultaneously will be from external reflection
The break-even ultrasonic transducer that passes to of ultrasonic energy returned, and bell-mouthed effect is further
Focused sound waves so that it is there is less field angle, it is possible to make what energy more concentrated to blaze abroad, make measurement
Range is bigger, simultaneously because field angle is little, it enables the ultrasound probe of this structure the narrowest
Space use, and occur without false reflection signal, there is more preferable application adaptability.
Using the ultrasound probe of this structure, owing to its energy conversion loss is little, wave beam is assembled, so
As long as can be achieved with the range finding application of relatively large journey with the ultrasonic transducer of smaller size smaller.
Accompanying drawing explanation
Fig. 1 is specific embodiment of the invention basic structure schematic diagram.
Fig. 2 is entrant sound orifice plate Facad structure schematic diagram of the present invention.
Wherein Fig. 1:
1 ultrasonic transducer 2 radiant panel 3 entrant sound orifice plate 4 horn mouth
5 probing shell 6 fluid sealant 7 signal preamplifiers
Detailed description of the invention
Set forth herein 1 preferred specific embodiment (infinite), specifically details are as follows.
As it is shown in figure 1, the small-power wide range ultrasound probe of the present invention is by cylindrical ultrasound wave transducer
1, radiant panel 2, entrant sound orifice plate 3 and horn mouth 4 are constituted.Radiant panel 2 is adhered to ultrasonic transducer 1
Front end, entrant sound orifice plate 3 is placed in radiant panel 2 front end, and the exterior front of radiant panel 2 and entrant sound orifice plate 3 adds
There is horn mouth 4.Before ultrasonic transducer 1, radiant panel 2, entrant sound orifice plate 3 are installed on cabinet 5
Fixing in portion's housing and by fluid sealant 6, cabinet 5 front end and horn mouth 4 connect as one form.
Signal preamplifier 7 is placed, before the lead-in wire of ultrasonic transducer 1 is connected at cabinet 5 rear portion
Putting signal amplifier 7, signal preamplifier 7 is connected with outside electronic unit by signal cable.
Cylindrical ultrasound wave transducer 1 is sandwich, and centre is piezoelectric ceramics, electrode block before and after adhesion, external diameter
For 45mm, resonant frequency is 33KHZ, and radiant panel 2 is the ABS plastic plate of 6mm thickness, entrant sound orifice plate
3 is the ABS plastic plate of 2.5mm thickness, spreads all over the aperture that external diameter is 2mm, and pitch of holes is 1.5mm.
The opening angle of horn mouth 4 is 60 degree, along a length of 170mm of its centrage.
Outside electronic unit produces peak impulse voltage signal and drives ultrasonic transducer 1 to work, ultrasonic
Wave transducer 1 is produced mechanical vibration by electric pulse excitation, and radiant panel 2 end face forms ultrasound wave, super
Sound wave is launched through entrant sound orifice plate 3 is break-even, and is focused by horn mouth 4.This sound wave by
Measured medium surface reflects through the break-even radiant panel 2 that is delivered to of entrant sound orifice plate 3, and radiant panel 2 produces
Raw mechanical vibration also travel to ultrasonic transducer 1, and ultrasonic transducer 1 is produced by this vibrational excitation
Electric pulse, this electric pulse is amplified into electronic unit through signal preamplifier 7, electronic unit knows
Other places are managed.
Claims (4)
1. a small-power wide range ultrasound probe, by cylindrical ultrasound wave transducer (1), radiant panel (2),
Entrant sound orifice plate (3) and horn mouth (4) are constituted.Radiant panel (2) is adhered to ultrasonic transducer (1)
Front end, entrant sound orifice plate (3) is placed in radiant panel (2) front end, radiant panel (2) and entrant sound orifice plate (3)
Exterior front added with horn mouth (4).
Small-power wide range ultrasound probe the most according to claim 1, is characterized in that: cylindrical sonic
Transducer (1) is sandwich, and centre is piezoelectric ceramics, electrode block before and after adhesion.
Small-power wide range ultrasound probe the most according to claim 1, is characterized in that: radiant panel (2)
For plastic plate.
Small-power wide range ultrasound probe the most according to claim 1, is characterized in that: entrant sound orifice plate (3)
For the plastic plate with equally distributed aperture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410853047.2A CN105890710A (en) | 2014-12-23 | 2014-12-23 | Low-power wide-range ultrasonic probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410853047.2A CN105890710A (en) | 2014-12-23 | 2014-12-23 | Low-power wide-range ultrasonic probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105890710A true CN105890710A (en) | 2016-08-24 |
Family
ID=56700903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410853047.2A Pending CN105890710A (en) | 2014-12-23 | 2014-12-23 | Low-power wide-range ultrasonic probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105890710A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115025520A (en) * | 2022-06-24 | 2022-09-09 | 北京银星通达科技开发有限责任公司 | Ultrasonic defoaming equipment |
-
2014
- 2014-12-23 CN CN201410853047.2A patent/CN105890710A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115025520A (en) * | 2022-06-24 | 2022-09-09 | 北京银星通达科技开发有限责任公司 | Ultrasonic defoaming equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3440438B1 (en) | Ultrasonic level sensor with reflector | |
| CN201034982Y (en) | Double-layer PVDF piezoelectric thin film line focusing ultrasound probe | |
| US20140165740A1 (en) | Ultrasound transducer and method of generating and/or receiving ultrasound | |
| US11162829B2 (en) | Multilayer body that includes piezoelectric body | |
| CN101358843B (en) | Wall thickness detecting system for high-temperature inner barrel | |
| WO2011078691A3 (en) | Measuring apparatus | |
| CN104536003A (en) | Ultrasonic distance measuring method and device based on multiple emission frequencies | |
| CN103471998A (en) | Ultrasonic material reflection and transmission coefficient laser measurement system | |
| CN114111927B (en) | High-frequency ultrasonic sensor suitable for gas flow detection | |
| CN202582572U (en) | High-frequency ultrasonic sensor | |
| CN203414165U (en) | Laser measurement system for reflection and transmission coefficients of ultrasonic materials | |
| KR101951533B1 (en) | Ultrasonic flowmeter | |
| CN114111928A (en) | High-frequency ultrasonic sensor suitable for gas flow detection | |
| CN109758180A (en) | A kind of flexible ultrasonic probe and its supersonic diagnostic appts, method | |
| CN101782378B (en) | Micro-ultrasonic wave sensor | |
| JP6032512B1 (en) | Laminate, ultrasonic transducer and ultrasonic flowmeter | |
| CN105890710A (en) | Low-power wide-range ultrasonic probe | |
| CN115266947B (en) | Ultrasonic longitudinal guided wave excitation device and detection method for polyethylene gas pipeline | |
| CN105738651A (en) | Ultrasonic wave wind speed measurement apparatus with temperature compensation | |
| CN211042411U (en) | Ultrasonic liquid level monitoring device for septic tank and septic tank | |
| CN202066785U (en) | Optical fiber coupling opto-acoustic detector probe | |
| JP2017155479A (en) | Anchor and diagnosis method | |
| CN204758547U (en) | Semi -circular ultrasonic transducer | |
| CN215932137U (en) | Ultrasonic sensor | |
| JP2014192720A (en) | Ultrasonic sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160824 |