CN206892036U - A kind of acoustical testing device and acoustical testing device - Google Patents
A kind of acoustical testing device and acoustical testing device Download PDFInfo
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- CN206892036U CN206892036U CN201720854557.0U CN201720854557U CN206892036U CN 206892036 U CN206892036 U CN 206892036U CN 201720854557 U CN201720854557 U CN 201720854557U CN 206892036 U CN206892036 U CN 206892036U
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Abstract
The utility model provides a kind of acoustical testing device and acoustical testing device, belongs to acoustical behavior test equipment field.Acoustical testing device includes testing tube, acoustical generator, microphone, heating element and the first radiating piece.Testing tube is internally formed closed cavity.Acoustical generator and heating element are located at the both ends of testing tube respectively, and acoustical generator is located in closed cavity.Microphone is extended in closed cavity, and microphone is close to acoustical generator.First radiating piece is sheathed on the outside of testing tube, and the first radiating piece is provided with inlet and liquid outlet, and the first radiating piece is internally formed accommodating chamber, and inlet and liquid outlet connect with accommodating chamber.Because the outside of testing tube is provided with the first radiating piece, after being passed through coolant in the first radiator, the flowing of coolant will be taken away inside testing tube from heating zone to most of heat of work block transitive.First radiating piece can play good radiating and cooling effect to testing tube.
Description
Technical field
Acoustical behavior test equipment field is the utility model is related to, in particular to a kind of acoustical testing device and sound
Learn tester.
Background technology
In the sound absorption qualities under studying porous metal material high temperature and cavity condition, acoustical testing is often applied to
Device, to be carried out under the different condition such as room temperature, steady temperature field (100 DEG C~700 DEG C) to the attracting performance of porous metal material
Test.
Acoustical testing device generally comprises acoustical generator, microphone, testing tube and heating element, and heating element and acoustical generator are arranged on survey
The both ends of test tube, microphone extend in testing tube and close to acoustical generator, the effect of microphone be that sound in testing tube is entered
Row collection.When being tested, it is necessary to which testing tube to be set to the temperature control of the position of microphone within 50 DEG C.Therefore, need
Testing tube is cooled before hot-fluid reaches microphone working region after being heated to test specimen, traditional mode is to survey
Thermal insulation barriers are set in test tube, have reached the purpose of heat insulation and heat control, this mode cooling-down effect is poor, transmission easily to transaudient ripple is made
Into influence.
Utility model content
The purpose of this utility model is to provide a kind of acoustical testing device, to improve cooling of the traditional approach to testing tube
The problem of effect difference.
The purpose of this utility model is to provide a kind of acoustical testing device, imitated with improving cooling of the traditional approach to testing tube
The problem of fruit difference.
What the utility model was realized in：
Based on above-mentioned first purpose, the utility model provides a kind of acoustical testing device, including testing tube, acoustical generator, biography
Sound device, heating element and the first radiating piece；
Testing tube is internally formed closed cavity；
Acoustical generator and heating element are located at the both ends of testing tube respectively, and acoustical generator is located in closed cavity, and microphone extends to
In the closed cavity, microphone is close to acoustical generator；
First radiating piece is sheathed on the outside of testing tube, and the first radiating piece is provided with inlet and liquid outlet, the first radiating
Part is internally formed accommodating chamber, and inlet and liquid outlet connect with accommodating chamber.
Further, accommodating chamber is annular, and accommodating chamber is surrounded on the outside of testing tube.
Further, the first depressed part is formed on testing tube, the first radiating piece is at the first depressed part；
First depressed part has relative the first wall and the second wall, the both ends of the first radiating piece respectively with the first wall and second
Wall contacts.
Further, the first wall and the second wall are annular.
Further, testing tube includes the first body and the second body, and the first body is detachably connected with the second body, the
One tubular body connects with the second tubular body；
The first depressed part is formed between first body and the second body.
Further, acoustical testing device also includes the second radiating piece, and the second radiating piece is sheathed on the outside of testing tube；
Radiating piece includes the heat shield and at least two fin being axially distributed along testing tube, and adjacent two fin lead to
Heat shield is crossed to separate.
Further, the second depressed part is formed on testing tube, the second radiating piece is at the second depressed part；
Second depressed part has relative the 3rd wall and the 4th wall, the both ends of the second radiating piece respectively with the 3rd wall and the 4th
Wall contacts.
Further, the second body includes the 3rd body and the 4th body, and the 3rd body is detachably connected with the 4th body,
3rd tubular body connects with the 4th tubular body；
The second depressed part is formed between 3rd body and the 4th body.
Further, the 3rd wall and the 4th wall are annular.
Based on above-mentioned second purpose, the utility model provides a kind of acoustical testing device, including controller, temperature sensor and
Above-mentioned acoustical testing device, heating element inside are provided with heating resistor, and heating resistor is electrically connected with the controller, and temperature sensor is used
Temperature inside detection heating element, temperature sensor are electrically connected with the controller.
The beneficial effects of the utility model are：
The utility model provides a kind of acoustical testing device, in use, test specimen be arranged in detection pipe and close to plus
Hot device, after heater heats to test specimen, heat inside testing tube is by the work block transitive from heating zone to microphone.By
The first radiating piece is provided with the outside of testing tube, after being passed through coolant in the first radiator, the flowing of coolant will take away test
From heating zone to most of heat of work block transitive inside pipe.First radiating piece can play good radiating and cooling to testing tube
Effect.In addition, the first radiating piece is located at the outside of testing tube, the transmission of transaudient ripple will not be impacted.
The utility model provides a kind of acoustical testing device, including controller, temperature sensor and above-mentioned acoustical testing dress
Put, there are all advantages of above-mentioned acoustical testing device.Controller can be by the temperature control inside heating element in required temperature
In the range of degree.
Brief description of the drawings
, below will be to required use in embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment
Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by
Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also
To obtain other related accompanying drawings according to these accompanying drawings.
Fig. 1 is the structural representation for the acoustical testing device that the utility model embodiment 1 provides；
Fig. 2 is the structural representation of the testing tube shown in Fig. 1；
Fig. 3 is the structural representation of the heating element shown in Fig. 1；
Fig. 4 is the structural representation of the first radiating piece shown in Fig. 1；
Fig. 5 is the structural representation for the acoustical testing device that the utility model embodiment 2 provides；
Fig. 6 is the structural representation of the testing tube shown in Fig. 5；
Fig. 7 is the structural representation of the first body shown in Fig. 6；
Fig. 8 is the structural representation of the 3rd body shown in Fig. 6；
Fig. 9 is the structural representation of the 4th body shown in Fig. 6；
Figure 10 is the structural representation of the second radiating piece shown in Fig. 5；
Figure 11 is the structural representation of the heat shield shown in Figure 10；
Figure 12 is the structural representation of the fin shown in Figure 10；
Figure 13 is the structural representation for the acoustical testing device that the utility model embodiment 3 provides.
Icon：100- acoustical testing devices；10- testing tubes；11- closed cavities；12- bodys；13- pipe closes；14- first is managed
Body；The cylinders of 141- first；The cylinders of 142- second；The walls of 143- first；The bodys of 15- second；The bodys of 16- the 3rd；The walls of 161- second；
The walls of 162- the 3rd；The bodys of 17- the 4th；The cylinders of 171- the 3rd；The cylinders of 172- the 4th；The walls of 173- the 4th；The depressed parts of 18- first；19-
Second depressed part；20- acoustical generators；21- microphones；30- heating elements；31- shells；32- heating resistors；33- receiving spaces；34-
Butt hole；The radiating pieces of 40- first；The centre bores of 41- first；42- accommodating chambers；43- inlets；44- liquid outlets；50- test specimens；
The radiating pieces of 60- second；61- heat shields；The centre bores of 611- second；The mounting holes of 612- first；613- first end faces；The ends of 614- second
Face；The first annular projections of 615-；The first annular grooves of 616-；62- fin；The centre bores of 621- the 3rd；The mounting holes of 622- second；
The end faces of 623- the 3rd；The end faces of 624- the 4th；The annular protrusions of 625- second；The annular grooves of 626- second；63- connectors；64- polings
Passage；200- acoustical testing devices；210- controllers；220- temperature sensors.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, rather than whole embodiments.Generally here described in accompanying drawing and
The component of the utility model embodiment shown can be configured to arrange and design with a variety of.
Therefore, the detailed description of the embodiment of the present utility model to providing in the accompanying drawings is not intended to limit requirement below
The scope of the utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in the utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of the utility model protection.
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the utility model can
To be mutually combined.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent accompanying drawing in individual accompanying drawing.
, it is necessary to which explanation, indicating position or position relationship are based on accompanying drawing in the description of the utility model embodiment
Shown orientation or position relationship, or the utility model product using when the orientation usually put or position relationship, or
The orientation or position relationship that those skilled in the art usually understand, or the utility model product using when usually put
Orientation or position relationship, it is for only for ease of description the utility model and simplifies description, rather than indicates or imply signified dress
Put or element there must be specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to the utility model
Limitation.In addition, term " first ", " second ", " the 3rd " etc. are only used for distinguishing description, and it is not intended that instruction or hint phase
To importance.
In the description of the utility model embodiment, it is also necessary to explanation, unless otherwise clearly defined and limited, art
Language " setting ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or integratedly be connected
Connect；Can be directly connected to, can also be indirectly connected with by intermediary.For the ordinary skill in the art, may be used
Concrete meaning of the above-mentioned term in the utility model is understood with concrete condition.
Embodiment 1
As shown in figure 1, the present embodiment provides a kind of acoustical testing device 100, including it is testing tube 10, acoustical generator 20, transaudient
Device 21, the radiating piece 40 of heating element 30 and first, in testing tube 10, acoustical generator 20 and heating element 30 are located at acoustical generator 20 respectively
The both ends of testing tube 10, microphone 21 are extended in testing tube 10 close to acoustical generator 20, microphone 21, the first 40 sets of radiating piece
Located at the outside of testing tube 10, for being radiated to testing tube 10.
Wherein, as shown in Fig. 2 testing tube 10 is internally formed closed cavity 11.Testing tube 10 includes body 12 and pipe close 13,
Body 12 is cylindric, and body 12 is one end open structure, and the external diameter of pipe close 13 is equal with the external diameter of body 12, and pipe close 13 is spirally connected
In one end that body 12 is open and formed closed.
Acoustical generator 20 is sound generation source.In the present embodiment, acoustical generator 20 is microphone.
Microphone 21 is condenser microphone, and its model MPA416, its effect is that sound in testing tube 10 is adopted
Collection.
As shown in figure 3, heating element 30 includes shell 31 and heating resistor 32, shell 31 is made up of insulation material, shell 31
For hollow cylinder structure；For the annular spread of heating resistor 32 in shell 31, heating resistor 32 is internally formed receiving space 33；Shell
31 are provided with the butt hole 34 for leading to receiving space 33.
The material of first radiating piece 40 is copper.As shown in figure 4, the first radiating piece 40 is loop configuration, intermediate position is set
There are the first centre bore 41 that the body 12 for testing tube 10 passes through, the aperture of the first centre bore 41 and the body 12 of testing tube 10
External diameter matches.First radiating piece 40 is internally formed accommodating chamber 42, and accommodating chamber 42 is annular.First radiating piece 40 is provided with feed liquor
Mouth 43 and liquid outlet 44, inlet 43 and liquid outlet 44 connect with accommodating chamber 42, the position of inlet 43 and liquid outlet
44 position is at a distance of 180 degree.
As shown in figure 1, acoustical generator 20 is fixed on one end of testing tube 10, acoustical generator 20 is located at the closed cavity of testing tube 10
In 11, one end that testing tube 10 is provided with pipe close 13 is extended in receiving space 33 through the butt hole 34 of heating element 30, testing tube
10 threadingly realize with the shell 31 of heating element 30 and are detachably connected.Microphone 21 is extended in testing tube 10, transaudient
Device 21 is close to acoustical generator 20.First radiating piece 40 is fixed on the outside of the body 12 of testing tube 10 by way of welding, i.e.,
The body 12 of testing tube 10 is arranged in the first centre bore 41.First radiating piece 40 is between microphone 21 and heating element 30.
Accommodating chamber 42 in first radiating piece 40 is surrounded on the outside of testing tube 10.In other embodiments, the first radiating piece 40 is with surveying
Test tube 10 or interactive connection, such as, the first radiating piece 40 is directly sleeved on the outside of testing tube 10, and the first radiating piece 40 can be
Moved axially on testing tube 10, to adjust the position of the first radiating piece 40.
Testing tube 10 is pulled down from heater, and opens the pipe close 13 of testing tube 10, by (the porous metals material of test specimen 50
Material) it is placed in testing tube 10, then pipe close 13 is covered, testing tube 10 is connected with heater so that test specimen 50, which is located at, to be added
In hot device.After i.e. heater heats to test specimen, the heat inside testing tube 10 is by from the heating zone where test specimen 50 to biography
Work block transitive where sound device 21.Because the outside of testing tube 10 is provided with the first radiating piece 40, into inlet 43 constantly
Coolant is injected, coolant will flow out after being full of in accommodating chamber 42 from liquid outlet 44.Coolant in first radiating piece 40
Flow the most of heat that will be taken away on testing tube 10.First radiating piece 40 can play good radiating and cooling effect to testing tube 10
Fruit.In addition, the first radiating piece 40 is located at the outside of testing tube 10, the transmission of transaudient ripple will not be impacted.In addition, this implementation
In example, accommodating chamber 42 is the annular chamber around testing tube 10, and coolant can take away the heat in the whole circumference of testing tube 10, is radiated
Effect is good.
Embodiment 2
As shown in figure 5, the present embodiment provides a kind of acoustical testing device 100, the difference with embodiment 1 is, testing tube
10 structure is different, and the second radiating piece 60 is additionally provided with testing tube 10.
As shown in fig. 6, testing tube 10 includes the first body 14 and the second body 15, the first body 14 and the second body 15 can
Dismantling connection.
As shown in fig. 7, the first body 14 includes the first cylinder 141 and the second cylinder 142 being coaxially disposed, the first cylinder
141 be one end open structure, and the second cylinder 142 is both ends open structure, and the external diameter of the second cylinder 142 is less than the first cylinder 141
Internal diameter, the aperture of the external diameter of the second cylinder 142 and the first centre bore 41 of the first radiating piece 40 matches.First cylinder 141
Be connected between the second cylinder 142 by the first wall 143, the first wall 143 for annular, the inside of the first cylinder 141 with second
The inside connection of body 142.That is, the first cylinder 141 is transitioned into the second cylinder 142 by the first wall 143.
Second body 15 includes the 3rd body 16 and the 4th body 17, and the 3rd body 16 detachably connects with the 4th body 17
Connect.
As shown in figure 8, the both ends of the 3rd body 16 are hatch frame, the both ends of the 3rd body 16 are respectively equipped with the second wall 161
With the 3rd wall 162, the second wall 161 and the 3rd wall 162 are loop configuration, the internal diameter of the second wall 161 and the second cylinder 142 it is outer
Footpath matches.
As shown in figure 9, the 4th body 17 includes the 3rd cylinder 171 and the 4th cylinder 172, the 3rd cylinder 171 is opened for one end
Mouth structure, the 4th cylinder 172 are both ends open structure, and the external diameter of the 4th cylinder 172 is less than the internal diameter of the 3rd cylinder 171, the 4th
The internal diameter of the external diameter of cylinder 172 and the 3rd wall 162 matches.Pass through the 4th wall between 3rd cylinder 171 and the 4th cylinder 172
173 connections, the 4th wall 173 are annular, and the inside of the 3rd cylinder 171 connects with the inside of the 4th cylinder 172.That is, the
Three cylinders 171 are transitioned into the 4th cylinder 172 by the 4th wall 173.
As shown in fig. 6, the second cylinder 142 and the second wall 161 are spirally connected and form sealing so that the inside of the first body 14 with
The inside connection of 3rd body 16.First wall 143 and the second wall 161 are relative, the first wall 143, the second cylinder 142 and the second wall
161 form the first depressed part 18.4th cylinder 172 and the 3rd wall 162 are spirally connected and form sealing so that the inside of the 3rd body 16
Connected with the inside of the 4th body 17.3rd wall 162 and the 4th wall 173 are relative, the 3rd wall 162, the 4th cylinder 172 and the 4th wall
173 form the second depressed part 19.
As shown in Figure 10, the second radiating piece 60 is circular ring structure.Second radiating piece 60 includes heat shield 61, the and of fin 62
Connector 63, fin 62 are connected with heat shield 61 by connector 63.
Heat shield 61 is made up of heat-insulated material, and in the present embodiment, the material of heat shield 61 is polyether-ether-ketone.Such as Figure 11 institutes
Showing, heat shield 61 is circular lamellar body, and the centre position of heat shield 61 is provided with the second centre bore 611 passed through for testing tube 10,
The aperture of second centre bore 611 and the external diameter of the body 12 of testing tube 10 match, and heat shield 61 circumferentially divides provided with multiple
First mounting hole 612 of cloth.Heat shield 61 has two relative first end faces 613 and second end face 614, first end face 613
First annular raised 615 are provided with, second end face 614 is provided with first annular groove 616, and first annular raised 615 and first
Annular groove 616 is coaxially disposed with the second centre bore 611.
Fin 62 is made up of the preferable material of heat conductivility, and in the present embodiment, the material of fin 62 is copper.Such as Figure 12
Shown, fin 62 is circular lamellar body, and the centre of fin 62 is to be provided with the 3rd centre bore 621 passed through for testing tube 10,
The aperture of 3rd centre bore 621 is equal with the aperture of the second centre bore 611.Fin 62 be provided with it is multiple be circumferentially distributed the
Two mounting holes 622.Fin 62 has two relative the 3rd end faces 623 and the 4th end face 624, and the 3rd end face 623 is provided with
For the second annular protrusion 625 coordinated with first annular groove 616, the 4th end face 624 be provided be used for it is first annular convex
Play 615 the second annular grooves 626 coordinated, the second annular protrusion 625 and the second annular groove 626 with the second centre bore 611
It is coaxially disposed.
In the present embodiment, connector 63 is bolt.
As shown in Figure 10, heat shield 61 is two, and fin 62 is three, all fin 62 and all heat shields 61 phases
Mutually stack, adjacent two fin 62 are separated by a heat shield 61, first annular raised 615 on heat shield 61 and one
The second annular groove 626 on fin 62, which is formed, to be coordinated, the first annular groove 616 on the heat shield 61 and another radiating
The second annular protrusion 625 on piece 62, which is formed, to be coordinated, so as to finally to form positioning between heat shield 61 and fin 62.It is heat-insulated
After being positioned between piece 61 and fin 62, the second centre bore 611 on heat shield 61 and the 3rd centre bore 621 on fin 62
Align and form poling passage 64, the size of poling passage 64 and the external diameter of the 4th cylinder 172 match；On heat shield 61
One mounting hole 612 aligns to form bar passage with the second mounting hole 622 on fin 62, and bolt will be all through bar passage
Heat shield 61 is fixed with fin 62, finally constitutes the first radiating piece 40.
As shown in figure 5, the first radiating piece 40 is stuck at the first depressed part 18, i.e., the first radiating piece 40 is placed on the second cylinder
142 outside, the both ends of the first radiating piece 40 contact with the first wall 143 with the second wall 161 respectively.Second radiating piece 60 is stuck in
At two depressed parts 19, i.e. the second radiating piece 60 is placed on the outside of the 4th cylinder 172, the both ends of the second radiating piece 60 respectively with the 3rd wall
162 contact with the 4th wall 173.Heat shield 61, fin 62 in second radiating piece 60 are distributed along the axial direction of testing tube 10.Sounding
Device 20 is fixed in the 3rd cylinder 171, and microphone 21 is extended in the 3rd cylinder 171, and the first cylinder 141 passes through heating element 30
Butt hole 34 is extended in receiving space 33.
In the present embodiment, the first radiating piece 40 and the second radiating piece 60 form two-stage radiation, further improve radiating effect
Fruit, the heat inside testing tube 10 can be taken away well, so that the temperature of the workspace where microphone 21 is positioned at regulation model
In enclosing.And two adjacent fin 62 in the second radiating piece 60 are separated by heat shield 61, reduce adjacent two and dissipate
Heat transfer between backing 62, the heat inside testing tube 10 are absorbed and are dissipated to the external world step by step by all fin 62, and second dissipates
Warmware 60 can play good radiating and cooling effect to testing tube 10.Second radiating piece 60 is in radiation processes, the second radiating piece
The temperature of fin 62 in 60 close to heating element 30 is higher than the temperature of the fin 62 of remote radiator.
In the present embodiment, the first body 14 is detachably connected with the 3rd body 16, and the first radiating piece 40 is clamped in
Between one wall 143 and the second wall 161, it is easy to the dismounting and fixation of the first radiating piece 40.In addition, the first wall 143 and the second wall 161
Contacted with the first radiating piece 40, increase the contact area of the radiating piece 40 of testing tube 10 and first, the heat being easy in testing tube 10
Amount be capable of axial direction pass to the first radiating piece 40, enhance radiating effect.3rd body 16 detachably connects with the 4th body 17
Connect, and the second radiating piece 60 is clamped between the 3rd wall 162 and the 4th wall 173, is easy to the dismounting of the second radiating piece 60 and is consolidated
It is fixed.In addition, the 3rd wall 162 and the 4th wall 173 contact with the second radiating piece 60, the radiating piece 60 of testing tube 10 and second is increased
Contact area, the heat being easy in testing tube 10 be capable of axial direction pass to the second radiating piece 60, enhance radiating effect.
In the present embodiment, the fin 62 in the second radiating piece 60 is three, and heat shield 61 is two, two fin 62
Three fin 62 are separated two-by-two, reduce the heat transfer between fin 62.In other specific embodiments, the second radiating piece
Fin 62 in 60 can be two or more other numbers, adjacent two fin 62 by heat shield 61 every
Open, i.e. the number of fin 62 one fewer than the number of heat shield 61 all the time.
It should be noted that the thickness of the fin 62 in the second radiating piece 60 be able to can not also be waited with equal.This implementation
In example, it is located at the thickness of middle fin 62 in the second radiating piece 60 in its axial direction more than the fin 62 positioned at both ends
Thickness.The thickness of heat shield 61 in second radiating piece 60 be able to can not also be waited with equal.In the present embodiment, the second radiating piece
Thickness in 60 in its axial direction close to the heat shield 61 of heater is more than the thickness of the heat shield 61 away from heater.
Remaining structure of the present embodiment is same as Example 1, will not be repeated here.
Embodiment 3
As shown in figure 13, the present embodiment provides a kind of acoustical testing device 200, including controller 210, temperature sensor 220
With the acoustical testing device 100 in above-described embodiment 2.
Controller 210 is temperature controller, and temperature sensor 220 is located in the receiving space 33 of heating element 30, temperature sensor
220 electrically connect with temperature controller, and the heating resistor 32 in heating element 30 electrically connects with temperature controller.Temperature sensor 220 can be examined in real time
The temperature surveyed inside heating element 30, if detected value is less than preset value, temperature controller will control heating resistor 32 to heat, most generate heat at last
Temperature control inside device 30 is within the scope of the required temperature of setting.
Preferred embodiment of the present utility model is these are only, is not limited to the utility model, for this area
Technical staff for, the utility model can have various modifications and variations.It is all within the spirit and principles of the utility model,
Any modification, equivalent substitution and improvements made etc., should be included within the scope of protection of the utility model.
Claims (10)
1. a kind of acoustical testing device, it is characterised in that including testing tube, acoustical generator, microphone, heating element and the first radiating
Part；
The testing tube is internally formed closed cavity；
The acoustical generator and the heating element are located at the both ends of testing tube respectively, and acoustical generator is located in the closed cavity, described
Microphone is extended in the closed cavity, and the microphone is close to the acoustical generator；
First radiating piece is sheathed on the outside of the testing tube, and first radiating piece is provided with inlet and liquid outlet,
First radiating piece is internally formed accommodating chamber, and the inlet and the liquid outlet connect with the accommodating chamber.
2. acoustical testing device according to claim 1, it is characterised in that the accommodating chamber is annular, the accommodating chamber
It is surrounded on the outside of the testing tube.
3. acoustical testing device according to claim 1, it is characterised in that the first depressed part is formed on the testing tube,
First radiating piece is at first depressed part；
First depressed part has relative the first wall and the second wall, and the both ends of first radiating piece are respectively with described first
Wall and second wall contact.
4. acoustical testing device according to claim 3, it is characterised in that first wall and second wall are ring
Shape.
5. acoustical testing device according to claim 3, it is characterised in that the testing tube includes the first body and second
Body, first body are detachably connected with second body, first tubular body and second tubular body
Connection；
First depressed part is formed between first body and second body.
6. acoustical testing device according to claim 5, it is characterised in that the acoustical testing device also includes second and dissipated
Warmware, second radiating piece are sheathed on the outside of testing tube；
The radiating piece includes the heat shield and at least two fin being axially distributed along the testing tube, described in adjacent two
Fin is separated by the heat shield.
7. acoustical testing device according to claim 6, it is characterised in that the second depressed part is formed on the testing tube,
Second radiating piece is at second depressed part；
Second depressed part has relative the 3rd wall and the 4th wall, and the both ends of second radiating piece are respectively with the described 3rd
Wall and the 4th wall contact.
8. acoustical testing device according to claim 7, it is characterised in that second body includes the 3rd body and the
Four bodys, the 3rd body are detachably connected with the 4th body, in the 3rd tubular body and the 4th body
Portion connects；
Second depressed part is formed between 3rd body and the 4th body.
9. acoustical testing device according to claim 8, it is characterised in that the 3rd wall and the 4th wall are ring
Shape.
10. a kind of acoustical testing device, it is characterised in that including described in controller, temperature sensor and claim any one of 1-9
Acoustical testing device, be provided with heating resistor inside the heating element, the heating resistor electrically connects with the controller, described
Temperature sensor is used to detect the temperature inside the heating element, and the temperature sensor electrically connects with the controller.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720854557.0U CN206892036U (en) | 2017-07-14 | 2017-07-14 | A kind of acoustical testing device and acoustical testing device |
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| CN201720854557.0U CN206892036U (en) | 2017-07-14 | 2017-07-14 | A kind of acoustical testing device and acoustical testing device |
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| CN206892036U true CN206892036U (en) | 2018-01-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114295724A (en) * | 2021-12-29 | 2022-04-08 | 电子科技大学(深圳)高等研究院 | Sound wave test tube |
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2017
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114295724A (en) * | 2021-12-29 | 2022-04-08 | 电子科技大学(深圳)高等研究院 | Sound wave test tube |
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