CN109489797A - A kind of corrosion-and high-temp-resistant sonic transducer, sound field measure system and method - Google Patents
A kind of corrosion-and high-temp-resistant sonic transducer, sound field measure system and method Download PDFInfo
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- CN109489797A CN109489797A CN201811379772.5A CN201811379772A CN109489797A CN 109489797 A CN109489797 A CN 109489797A CN 201811379772 A CN201811379772 A CN 201811379772A CN 109489797 A CN109489797 A CN 109489797A
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- couplant
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H3/00—Measuring characteristics of vibrations by using a detector in a fluid
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- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention discloses a kind of corrosion-and high-temp-resistant sonic transducer, sound fields to measure system and method, corrosion-and high-temp-resistant sonic transducer includes hydrophone and the waveguide rod for protruding into high-temperature liquid state medium or corrosivity liquid medium, and top is sleeved on the couplant sleeve that hydrophone upper and lower part is sleeved in waveguide rod, the central space of couplant sleeve is couplant chamber, couplant is intracavitary to be filled with sound wave couplant, and the sensing element of hydrophone is arranged in sound wave couplant；It includes sequentially connected corrosion-and high-temp-resistant sonic transducer, signal amplifier, traffic filter, data acquisition card and data processor that sound field, which measures system,；It is of the invention novel in design reasonable, it is convenient to realize, the sound field in high temperature and corrosivity liquid medium can easily be detected, solve the problems, such as that sensor in the prior art, sound field measurement system harmony field recognition method can not detect sound field in high temperature and corrosivity liquid medium, it is practical, using effect is good, convenient for promoting the use of.
Description
Technical field
The invention belongs to signal detection technique fields, and in particular to a kind of corrosion-and high-temp-resistant sonic transducer, sound field measurement
System and method.
Background technique
On the one hand, application study of the vibration in metal freezing field causes the extensive attention of people, and vibration clotting is
Vibration is applied to the molten metal in process of setting, refines castings crystallization tissue because vibrated, residual stress of casting reduces simultaneously
Homogenization, mechanical property improve；On the other hand, vibration is applied in chemical reaction, for regulating and controlling chemical reaction process, is also risen
The extensive attention of people.
In above-mentioned metal solidification process and chemical reaction process, sound field intensity size and distribution determine what vibration applied
Effect is very crucial parameter.But people are only applied with applying electrical power consumed by vibration to qualitatively judge at present
The power of vibration.It can not accurate Characterization to the vibrational energy size and distribution that are actually imported in liquid.Which results in without legal
The vibration intrinsic property that the analysis of amount is exerted by liquid and the shadow to metal solidification process or chemical reaction process generated
The direct relation between effect is rung, the development of vibration clotting and vibration regulation chemical reaction technology is seriously constrained.
Main difficulty is at present, the melt in vibration clotting generally have hot environment (such as 600 DEG C of aluminium alloy fusing point with
On, 1000 DEG C of copper alloy fusing point or more, steel has reached 1400 DEG C), chemical reaction process usually has corrosive environment.At present
Acoustic field measuring method be not possible to be suitable for these environment.Current liquid internal Free field measurement method, mainly there is a three categories: 1.
The direct method of measurement, 2. indirect methods of measurement, 3. holographyization technology mensurations.Wherein, the direct method of measurement can be effectively quantitative real-time
Sound field information is measured, main realization rate has:
(1) hydrophone: this method is exactly to convert the sound pressure signal in liquid by being inserted directly into the hydrophone of liquid
For electric signal.Hydrophone can be divided into piezoelectric hydrophone, magneto strictive hydrophone and fibre optic hydrophone according to action principle.Generally most
The most commonly used is piezoelectric type hydrophones, its working principle is that piezoelectric effect.This method be suitble to measure high strength supersonic field, but due to
Difficulty and instrument self reason in the design of piezoelectricity original part structure make the data measured with this method and theoretical value have one
Determine deviation.
(2) temperature-sensitive mensuration: the merging heat to electricity conversion member in absorbing material (such as castor oil, polyethylene, silicon rubber etc.)
Part (thermistor or thermocouple), then puts it into sound field, and sound can be converted to thermal energy in absorbing material, then can be with
By measuring the change in resistance of thermistor or the output voltage of thermocouple, to obtain being measured opposite sound pressure level.The party
Method is not influenced by cavitation, insensitive to electrical interference.
But above-mentioned Direct Determination, it is suitable only for room temperature, sound field in middle low temperature or corrosion-free environment to be measured
Detection, can all cause the transducing part being placed in liquid to fail or damage under high temperature or corrosive environment, it is therefore, existing
There are sensor in technology, sound field measurement system harmony field recognition method, it can't be in the metal bath of high temperature, or to biography
Sensor, which has in the solution of corrosion, directly to be used.
Summary of the invention
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that it is resistance to provide a kind of high temperature resistant
Corrode sonic transducer, structure is simple, and it is novel in design reasonable, by using couplant sleeve connection waveguide rod and hydrophone, energy
Enough use corrosion-and high-temp-resistant waveguide rod by the acoustical signal importing sound in high-temperature liquid state medium to be detected or corrosivity liquid medium
In wave couplant, while signal transduction, the isolation of high temperature and corrosive environment is realized；In room temperature, non-corrosive
In sound wave couplant, acoustical signal is finally acquired by conventional hydrophone, obtains Sound wave measurement data, solves in the prior art
Sensor the problem of sound field can not be detected in high temperature and corrosivity liquid medium.
In order to solve the above technical problems, the technical solution adopted by the present invention is that: a kind of corrosion-and high-temp-resistant sonic transducer, packet
It includes hydrophone and waveguide rod for protruding into high-temperature liquid state medium or corrosivity liquid medium and top is sleeved on hydrophone
Upper and lower part is sleeved on the couplant sleeve in waveguide rod, and the central space of the couplant sleeve is couplant chamber, the coupling
Agent is intracavitary to be filled with sound wave couplant, and the sensing element of the hydrophone is arranged in sound wave couplant.
A kind of above-mentioned corrosion-and high-temp-resistant sonic transducer, the waveguide rod are made of corrosion-and high-temp-resistant material.
A kind of above-mentioned corrosion-and high-temp-resistant sonic transducer, the waveguide rod are made of quartz material or ceramic material.
Above-mentioned a kind of corrosion-and high-temp-resistant sonic transducer, between the couplant upper cartridge inner wall and hydrophone outer wall
It is provided with the first sealing ring, is provided with the second sealing ring between the couplant lower cartridge inner wall and waveguide rod outer wall.
A kind of above-mentioned corrosion-and high-temp-resistant sonic transducer, the sound wave couplant are gluey sound wave couplant, oiliness sound
Wave couplant or aqueous sound wave couplant.
The invention also discloses it is a kind of utilize corrosion-and high-temp-resistant sonic transducer, cooperation signal amplifier, traffic filter,
Data acquisition card and data processor can easily detect the sound field in high temperature and corrosivity liquid medium, solve existing
The sound field measurement system for the problem of sound field measurement system in technology can not detect sound field in high temperature and corrosivity liquid medium,
Including sequentially connected corrosion-and high-temp-resistant sonic transducer, signal amplifier, traffic filter, data acquisition card and data processing
Device.
Above-mentioned sound field measures system, it is characterised in that: the data processor is computer.
The invention also discloses a kind of method and steps simply, it is convenient to realize, can easily detect high temperature and corrosive liquid
Sound field in state medium solves measuring method in the prior art and can not detect sound field in high temperature and corrosivity liquid medium
The problem of sound field measuring method, method includes the following steps:
Step 1: high-temperature liquid state medium or corrosivity liquid medium are placed in liquid medium container, high temperature resistant is resistance to
The waveguide rod for corroding sonic transducer immerses in high-temperature liquid state medium or corrosivity liquid medium；
Step 2: the acoustical signal in high-temperature liquid state medium or corrosivity liquid medium is transferred to sound wave couplant by waveguide rod
In；
Step 3: acoustical signal is propagated in sound wave couplant and is perceived by hydrophone；
Step 4: signal amplifier and traffic filter successively to hydrophone output electric signal amplify and filtering at
It is transferred to data acquisition card after reason, is transmitted further to data processor, data processor is filtered to by signal amplifier and signal
Device amplification and filtered electric signal are handled, and the sound field information in high-temperature liquid state medium or corrosivity liquid medium is obtained.
Compared with the prior art, the present invention has the following advantages:
1, corrosion-and high-temp-resistant sonic transducer of the invention, structure is simple, novel in design reasonable, by using couplant set
Cylinder connection waveguide rod and hydrophone, are able to use corrosion-and high-temp-resistant waveguide rod for high-temperature liquid state medium to be detected or corrosive liquid
Acoustical signal in state medium imports in sound wave couplant, while signal transduction, realizes high temperature and corrosive environment
Isolation；In room temperature, non-corrosive sound wave couplant, acoustical signal is finally acquired by conventional hydrophone, obtains cement bond logging
Fixed number evidence solves the problems, such as that sensor in the prior art can not detect sound field in high temperature and corrosivity liquid medium.
2, corrosion-and high-temp-resistant sonic transducer of the invention passes through the first sealing ring of setting and the second sealing ring, Neng Gouyou
Effect prevents sound wave couplant from revealing, and can not only guarantee the detection accuracy of acoustical signal processing sensor, moreover it is possible to avoid to test solution
State medium pollutes.
3, sound field of the invention measures system, using corrosion-and high-temp-resistant sonic transducer, cooperates signal amplifier, signal filter
Wave device, data acquisition card and data processor can easily detect the sound field in high temperature and corrosivity liquid medium, solve
The problem of sound field measurement system in the prior art can not detect sound field in high temperature and corrosivity liquid medium.
4, sound field measuring method of the invention, method and step is simple, and it is convenient to realize, can easily detect high temperature and corrosion
Sound field in property liquid medium, solving sound field measuring method in the prior art can not be in high temperature and corrosivity liquid medium
The problem of detecting sound field.
In conclusion novel design of the invention is rationally, it is convenient to realize, can easily detect high temperature and corrosivity liquid
Sound field in medium, solve sensor in the prior art, sound field measurement system harmony field recognition method can not in high temperature and
In corrosivity liquid medium the problem of detection sound field, practical, using effect is good, convenient for promoting the use of.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of corrosion-and high-temp-resistant sonic transducer of the present invention；
Fig. 2 is the structural schematic diagram that sound field of the present invention measures system；
Fig. 3 is the use state diagram that sound field of the present invention measures system；
Fig. 4 is the method flow block diagram of sound field measuring method of the present invention.
Description of symbols:
1-high-temperature liquid state medium；2-waveguide rods；3-couplant sleeves；
4-sound wave couplants；5-hydrophones；5-1-sensing element；
6-corrosivity liquid mediums；7-couplant chambers；8-liquid medium containers；
9-the first sealing ring；10-the second sealing ring；11-corrosion-and high-temp-resistant sonic transducers；
12-signal amplifiers；13-traffic filters；14-data acquisition cards；
15-data processors.
Specific embodiment
As shown in Figure 1, a kind of corrosion-and high-temp-resistant sonic transducer of the invention, including hydrophone 5 and for protruding into high temperature
Waveguide rod 2 and top in liquid medium 1 or corrosivity liquid medium 6 are sleeved on 5 upper and lower part of hydrophone and are sleeved on waveguide
Couplant sleeve 3 on bar 2, the central space of the couplant sleeve 3 are couplant chamber 7, are filled in the couplant chamber 7
The sensing element 5-1 of sound wave couplant 4, the hydrophone 5 is arranged in sound wave couplant 4.
The temperature range of the high-temp liquid medium 1 is 300 DEG C~2000 DEG C.
When it is implemented, the telecommunications output line of the hydrophone 5 is located at 3 top of couplant sleeve.The couplant sleeve 3
It is matched for upper end opening with hydrophone 5, lower ending opening is matched with waveguide rod 2, central space and upper end opening and lower end are opened
The tube that mouth is connected.The couplant sleeve 3 needs certain mechanical strength, is sensed for entire acoustical signal processing
The fixed position of device.
In the present embodiment, the waveguide rod 2 is made of corrosion-and high-temp-resistant material.
In the present embodiment, the waveguide rod 2 is made of quartz material or ceramic material.
When it is implemented, the waveguide rod 2 of use must be in detected high-temperature liquid state medium 1 for high-temperature liquid state medium 1
At a temperature of have good acoustical signal (mechanical wave) conductive performance, for example, 800 DEG C of metal aluminum melts, can use heatproof 1200
DEG C or more quartz material waveguide rod 2.For corrosivity liquid medium 6, the waveguide rod 2 of use is necessary for corrosion-resistant waveguide
Bar.
When it is implemented, the length of the waveguide rod 2 and high-temperature liquid state medium 1 to be detected or corrosivity liquid medium 6
Temperature it is related, for the waveguide rod 2 of material of the same race, the temperature of high-temperature liquid state medium 1 or corrosivity liquid medium 6 to be detected
Higher, waveguide rod 2 is longer, and the temperature of high-temperature liquid state medium 1 or corrosivity liquid medium 6 to be detected is lower, and waveguide rod 2 is got over
It is short.
In the present embodiment, it is provided with the first sealing ring 9 between 3 upper inside wall of couplant sleeve and 5 outer wall of hydrophone,
The second sealing ring 10 is provided between 3 lower inner wall of couplant sleeve and 2 outer wall of waveguide rod.
When it is implemented, first sealing ring 9 and the second sealing ring 10 are all made of rubber seal, pass through setting first
Sealing ring 9 and the second sealing ring 10 can effectively prevent sound wave couplant 4 to reveal, and can not only guarantee that acoustical signal processing senses
The detection accuracy of device, moreover it is possible to avoid polluting tested liquid medium.
In the present embodiment, the sound wave couplant 4 is gluey sound wave couplant, oiliness sound wave couplant or aqueous sound wave coupling
Mixture.
When it is implemented, the sensing element 5-1 of the hydrophone 5 is arranged in sound wave couplant 4, i.e., by hydrophone 5
Sensing element 5-1 is completely immersed in sound wave couplant 4.The sound wave couplant 4 being capable of efficient propagation acoustical signal.
When it is implemented, the hydrophone 5 is the types such as piezoelectric hydrophone, magneto strictive hydrophone and fibre optic hydrophone
Conventional hydrophone.
As shown in Figures 2 and 3, sound field of the invention measures system, including sequentially connected corrosion-and high-temp-resistant sound sensing
Device 11, signal amplifier 12, traffic filter 13, data acquisition card 14 and data processor 15.
In the present embodiment, the data processor 15 is computer.
As shown in figure 4, sound field measuring method of the invention, comprising the following steps:
Step 1: high-temperature liquid state medium 1 or corrosivity liquid medium 6 are placed in liquid medium container 8, by high temperature resistant
The waveguide rod 2 of corrosion-resistant sonic transducer 11 immerses in high-temperature liquid state medium 1 or corrosivity liquid medium 6；
When it is implemented, hydrophone 5 and waveguide rod 2 are not due in order to avoid causing acoustical signal processing sensor to damage
Can be used to clamp or fixed, therefore couplant sleeve 3 needs certain mechanical strength, by hand-held couplant sleeve 3 or
Mechanical arm clamps the mode of couplant sleeve 3, and entire acoustical signal processing sensor is fixed, and waveguide rod 2 is immersed high-temperature liquid
In state medium 1 or corrosivity liquid medium 6；
Step 2: the acoustical signal in high-temperature liquid state medium 1 or corrosivity liquid medium 6 is transferred to sound wave coupling by waveguide rod 2
In mixture 4；
Step 3: acoustical signal is propagated in sound wave couplant 4 and is perceived by hydrophone 5；
Step 4: signal amplifier 12 and traffic filter 13 successively to hydrophone 5 export electric signal amplify and
It is transferred to data acquisition card 14 after filtering processing, is transmitted further to data processor 15,15 pairs of data processor are amplified by signal
Device 12 and the amplification of traffic filter 13 and filtered electric signal are handled, and high-temperature liquid state medium 1 or corrosivity liquid are obtained
Sound field information in medium 6.The sound field information that the processing of data processor 15 obtains can be used in further analysis processing, for fixed
The vibration intrinsic property and generate solidifying to metal that amount analysis is exerted by high-temperature liquid state medium 1 or corrosivity liquid medium 6
Gu the direct relation etc. between process or the impact effect of chemical reaction process.
The above is only presently preferred embodiments of the present invention, is not intended to limit the invention in any way, it is all according to the present invention
Technical spirit any simple modification to the above embodiments, change and equivalent structural changes, still fall within skill of the present invention
In the protection scope of art scheme.
Claims (8)
1. a kind of corrosion-and high-temp-resistant sonic transducer, it is characterised in that: including hydrophone (5) and for protruding into high-temperature liquid state medium
(1) waveguide rod (2) and top or in corrosivity liquid medium (6) are sleeved on hydrophone (5) upper and lower part and are sleeved on waveguide
Couplant sleeve (3) on bar (2), the central space of the couplant sleeve (3) are couplant chamber (7), the couplant chamber
(7) sound wave couplant (4) are filled in, the sensing element (5-1) of the hydrophone (5) is arranged in sound wave couplant (4).
2. a kind of corrosion-and high-temp-resistant sonic transducer described in accordance with the claim 1, it is characterised in that: the waveguide rod (2) by
Corrosion-and high-temp-resistant material is made.
3. a kind of corrosion-and high-temp-resistant sonic transducer according to claim 1 or 2, it is characterised in that: the waveguide rod (2)
It is made of quartz material or ceramic material.
4. a kind of corrosion-and high-temp-resistant sonic transducer described in accordance with the claim 1, it is characterised in that: the couplant sleeve
(3) be provided with the first sealing ring (9) between upper inside wall and hydrophone (5) outer wall, couplant sleeve (3) lower inner wall with
The second sealing ring (10) are provided between waveguide rod (2) outer wall.
5. a kind of corrosion-and high-temp-resistant sonic transducer described in accordance with the claim 1, it is characterised in that: the sound wave couplant
It (4) is gluey sound wave couplant, oiliness sound wave couplant or aqueous sound wave couplant.
6. a kind of sound field using corrosion-and high-temp-resistant sonic transducer as described in claim 1 measures system, it is characterised in that: packet
Include sequentially connected corrosion-and high-temp-resistant sonic transducer (11), signal amplifier (12), traffic filter (13), data acquisition card
(14) and data processor (15).
7. sound field measures system according to claim 6, it is characterised in that: the data processor (15) is computer.
8. a kind of examine acoustical signal in high temperature and corrosivity liquid medium using sound field as claimed in claim 6 measurement system
The method of survey, which is characterized in that method includes the following steps:
Step 1: high-temperature liquid state medium (1) or corrosivity liquid medium (6) are placed in liquid medium container (8), by resistance to height
The waveguide rod (2) of the corrosion-resistant sonic transducer (11) of temperature immerses in high-temperature liquid state medium (1) or corrosivity liquid medium (6)；
Step 2: the acoustical signal in high-temperature liquid state medium (1) or corrosivity liquid medium (6) is transferred to sound wave by waveguide rod (2)
In couplant (4)；
Step 3: acoustical signal is propagated in sound wave couplant (4) and is perceived by hydrophone (5)；
Step 4: signal amplifier (12) and traffic filter (13) successively amplify the electric signal of hydrophone (5) output
With data acquisition card (14) are transferred to after filtering processing, be transmitted further to data processor (15), data processor (15) is to process
Signal amplifier (12) and traffic filter (13) amplification and filtered electric signal are handled, and high-temperature liquid state medium is obtained
(1) or the sound field information in corrosivity liquid medium (6).
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| CN201811379772.5A CN109489797A (en) | 2018-11-20 | 2018-11-20 | A kind of corrosion-and high-temp-resistant sonic transducer, sound field measure system and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811379772.5A CN109489797A (en) | 2018-11-20 | 2018-11-20 | A kind of corrosion-and high-temp-resistant sonic transducer, sound field measure system and method |
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ID=65696297
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113102733A (en) * | 2021-03-30 | 2021-07-13 | 西北工业大学 | Multidirectional coupling wall surface vibration three-dimensional ultrasonic metal solidification device and method |
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Application publication date: 20190319 |