CN205003119U - Ultrasound detectors - Google Patents
Ultrasound detectors Download PDFInfo
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- CN205003119U CN205003119U CN201520641325.8U CN201520641325U CN205003119U CN 205003119 U CN205003119 U CN 205003119U CN 201520641325 U CN201520641325 U CN 201520641325U CN 205003119 U CN205003119 U CN 205003119U
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Abstract
The utility model provides an ultrasound detectors relates to the ultrasonic detection field. The utility model provides an ultrasound detectors, it puts corresponding collection ripples ware through having set up with signal acquisition, it carries out the signal and sends the signal acquisition point after gathering together again to to make remote ultrasonic signal pass through collection ripples ware, the signal that makes the signal acquisition point acquire enlargies through covert, the intensity of the signal acquisition point signal of gathering has just also been improved, the precision that signal collector gathered the signal has just also been improved, and then make that operating personnel can be more accurate judge position and the problem that is detected the thing according to ultrasonic signal.
Description
Technical field
The present invention relates to ultrasound examination field, in particular to ultrasonic detector.
Background technology
Ultrasound examination is the detection mode of existing normal use, existing ultrasonic detection technology uses unique process of heterodyning (Heterodyning) that these ultrasound wave signals are converted to sound signal, then, allow user again through earphone to hear these sound, and see that intensity indicates on the panel for showing.As radio, (process of heterodyning is a kind of method of interferometry to process of heterodyning principle, it is by changing the frequency of reference signal, make to produce a difference on the frequency between itself and measuring-signal, after reference signal and measuring-signal are interfered, containing phase-modulation item (carrier wave) and tested quantifier in interference signal phase place, measured phase place can be obtained by carrying out demodulation to interference signal.This method introducing carrier wave in interference signal phase place is called process of heterodyning.Compared with zero balancing, process of heterodyning records measurand by interference signal demodulation, and the change of interference signal intensity can be ignored the impact of measuring, thus improves interferometry precision).The advantage using ultrasonic technology is exactly easy understand, convenience, ultrasound wave is a high-frequency short waves signal, this sound wave is not directly heard by people's ear, when user can closely detect these sound through supersonic reflectoscope, the position of the ultrasound wave source of sound produced when can be used for positioning searching gas or air leakage, electric fault.
The detector adopted in existing ultrasonic detection technology is made up of two parts usually, ultrasonic signal maker and ultrasonic signal collector, the signal acquisition point of ultrasonic signal collector is used for acquisition and is generated by ultrasonic signal maker, and at the ultrasound wave that contact measured object back reflection is returned, wherein ultrasonic signal collector is that sensor (signal acquisition point) by being arranged at its inside carries out gathering.
Along with the increase of the kind of detected object, many challenge are proposed to the development of ultrasonic detection technology itself, as to defect accurate quantification, orientation problem, the test problems etc. of complex environment and special area.Current ultrasonic detection technology can not detect toxic gas and the region that cannot set foot in gas detect, and can not detect in the electric leakage of high-tension line and electric equipment, position far away of namely cannot adjusting the distance is detected.
Summary of the invention
In view of this, the object of the embodiment of the present invention is to provide ultrasonic detector, to improve the detection range of ultrasonic detector.
First aspect, embodiments provide ultrasonic detector, comprise: wave collecting device and ultrasound signal receipt device, wave collecting device is placed in the side of ultrasound signal receipt device, and corresponding with the signal acquisition point of ultrasound signal receipt device, wave collecting device for the ultrasonic reflections that will project on wave collecting device to signal acquisition point.
In conjunction with first aspect, embodiments provide the first possible embodiment of first aspect, wherein, wave collecting device is sphere wave collecting device, and the focal length of signal acquisition point and sphere wave collecting device is less than default distance.
In conjunction with the first possible embodiment of first aspect, embodiments provide the embodiment that the second of first aspect is possible, wherein, signal acquisition point is positioned in the focus of sphere wave collecting device.
In conjunction with the first possible embodiment of first aspect or the possible embodiment of the second, embodiments provide the third possible embodiment of first aspect, wherein, ultrasonic detector also comprises laser sight, the laser emission port of laser sight deviates from wave collecting device, and the laser that laser sight is launched moves towards the direction away from wave collecting device.In conjunction with the first possible embodiment of first aspect or the possible embodiment of the second, ultrasonic detector, also comprise gun shaped support, wave collecting device, ultrasound signal receipt device and laser sight are all placed on gun shaped support, and laser sight and wave collecting device are placed in the both sides of gun shaped support respectively.
In conjunction with the first possible embodiment of first aspect or the possible embodiment of the second, signal acquisition point is provided with signal shielding layer away from the peripheral part of wave collecting device, and signal shielding layer is used for the ultrasonic signal that disabling signal source sends directly to signal acquisition point.
In conjunction with the first possible embodiment of first aspect or the possible embodiment of the second, ultrasonic detector also comprises in column or bores the extension probe of dress, extends probe and is connected with the signal acquisition point of ultrasound signal receipt device.
In conjunction with the first possible embodiment of first aspect or the possible embodiment of the second, ultrasonic detector, also comprises reservoir, and reservoir is connected with signal acquisition point, for the ultrasonic signal accessed by storage assembly collection point.
In conjunction with the first possible embodiment of first aspect or the possible embodiment of the second, extension probe is aluminum alloy material.
In conjunction with the first possible embodiment of first aspect or the possible embodiment of the second, ultrasonic detector, also comprise earphone and signal converter, earphone is electrically connected with signal acquisition point by signal converter, and the ultrasonic signal that signal converter is used for signal acquisition point to get is changed.
The ultrasonic detector that the embodiment of the present invention provides, have employed wave collecting device, the sensor of ultrasonic signal collector is arranged in gather ultrasonic signal with of the prior art use, and cause remote ultrasonic signal to be effectively received comparing, it is by being provided with the wave collecting device corresponding with signal acquisition point, make remote ultrasonic signal have passed through wave collecting device to carry out sending signal acquisition point to again after signal is gathered, the signal that signal acquisition point is got is through covert amplification, also just improve signal acquisition point collect the intensity of signal, also just improve the precision that signal picker collects signal, and then make operating personnel can judge position and the problem of detected material more accurately according to ultrasonic signal.
For making above-mentioned purpose of the present invention, feature and advantage become apparent, preferred embodiment cited below particularly, and coordinate appended accompanying drawing, be described in detail below.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment below, be to be understood that, the following drawings illustrate only some embodiment of the present invention, therefore the restriction to scope should be counted as, for those of ordinary skill in the art, under the prerequisite not paying creative work, other relevant accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 shows the basic block diagram of a kind of ultrasonic detector that the embodiment of the present invention provides;
Fig. 2 shows the wave collecting device fundamental diagram of a kind of ultrasonic detector that the embodiment of the present invention provides;
Fig. 3 shows the connected extension probe schematic diagram of a kind of ultrasonic detector that the embodiment of the present invention provides;
Can not the connecting of a kind of ultrasonic detector that Fig. 4 shows the embodiment of the present invention to be provided extends probe schematic diagram;
Fig. 5 shows centralized procurement device and the collection sound head schematic diagram of a kind of ultrasonic detector that the embodiment of the present invention provides.
Main element symbol description: 1, connecting portion; 2, adapter; 3, extend probe; 4, collector; 5, Ji Yintou; 6, wave collecting device; 7, gun shaped support; 8, laser sight; 9, signal acquisition point.
Embodiment
Below in conjunction with accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.The assembly of the embodiment of the present invention describing and illustrate in usual accompanying drawing herein can be arranged with various different configuration and design.Therefore, below to the detailed description of the embodiments of the invention provided in the accompanying drawings and the claimed scope of the present invention of not intended to be limiting, but selected embodiment of the present invention is only represented.Based on embodiments of the invention, the every other embodiment that those skilled in the art obtain under the prerequisite not making creative work, all belongs to the scope of protection of the invention.
Ultrasound wave is often referred to more than 20000Hz, and simple is the sound wave that cannot hear by people's ear.Ultrasound wave provided by the present invention is mainly applied in the working environment of fault detect, and certainly, this does not affect ultrasonic detector provided by the present invention application in the related art.Along with the development of industrial technology, when production is broken down time, be easy to region pollute, or formation explosive area, as electric arc, corona discharge, hazardous gas spillage etc., the place of this danger (place that the scope of hazardous location cannot be determined) is not suitable for close-in measurement, if close-in measurement probably causes the injures and deaths of personnel.But in order to trouble spot can be found as early as possible, as the particular location of hazardous gas leak point, contaminant water point of release etc., to repair fault as soon as possible, still need to determine the position of trouble spot as early as possible.Consider that the working range of the ultrasonic detector in conventional art is limited, cannot detecting in distant position, thus needing by strengthening the ultrasound wave through overdamping guaranteeing that the ultrasonic signal detected by signal acquisition point is effectively with real.
In correlation technique, UT100K ultrasound wave electric discharge/leakage detector uses unique process of heterodyning (Heterodyning) that these ultrasound wave signals are converted to sound signal, allow user through earphone to hear these sound, and on panel, see that intensity indicates.Process of heterodyning principle similarly is radio, the advantage using ultrasonic technology is exactly easy understand, convenience, ultrasound wave is a high-frequency short waves signal, this sound wave is not directly heard by people's ear, when user can detect these sound completely through supersonic reflectoscope, the position of the ultrasound wave source of sound produced when can be used for positioning searching gas or air leakage, electric fault, but can not detect in the scope more than 5 meters.
Concrete, ultrasonic detector provided by the present invention, as shown in Figure 1, comprise: wave collecting device 6 and ultrasound signal receipt device, wave collecting device 6 is placed in the side of ultrasound signal receipt device, and corresponding with the signal acquisition point 9 of ultrasound signal receipt device, wave collecting device 6 for the ultrasonic reflections that will project on wave collecting device 6 to signal acquisition point 9.
Wherein, the effect of wave collecting device 6 be the ultrasound wave be transmitted on wave collecting device 6 is carried out gather and by the ultrasonic reflections after gathering in signal acquisition point 9, enough effective ultrasonic signal can be got to make signal acquisition point 9.The shape of wave collecting device 6 can be arc line shaped, also can be to be made up of two elongated plates with angle.
It should be noted that, form by two elongated plates with angle the ultrasonic signal that wave collecting device 6 is merely able to two signal acquisition point 9 both sides limited to gather, all ultrasonic signals be transmitted on wave collecting device 6 all cannot be reflexed in signal acquisition point 9, namely ultrasonic signal to gather effect bad, but the manufacture of this wave collecting device 6 is simple, be easy to promote.
Another kind of situation wave collecting device 6 is sphere wave collecting device 6, and signal acquisition point 9 is less than default distance with the focal length of sphere wave collecting device 6.The ultrasound wave projecting sphere can effectively carry out gathering by the wave collecting device 6 of sphere (ultrasonic signal by launching to the inner side of sphere wave collecting device 6 at a distance, as shown in Figure 2).When ultrasonic signal be all perpendicular to sphere gather the line at 2, ripple device edge time, all ultrasound waves being transmitted into its surface just can all reflex in its focus by this sphere wave collecting device 6, and the ultrasonic signal in focus namely can be made to maximize.When using, do not need the focal position of strict determination sphere wave collecting device 6, as long as (signal acquisition point 9 is enough little with the distance difference of sphere wave collecting device 6 focus in a rational scope, just can ensure that the ultrasonic signal accessed by signal acquisition point 9 is enough effective), certainly, in order to maximize the precision of measurement, can also signal acquisition point 9 be arranged in the focus of sphere wave collecting device 6, namely signal acquisition point 9 be positioned at sphere wave collecting device 6 focus on Fig. 2 show the fundamental diagram of wave collecting device 6, in figure, effective signal directly can reflex in focus and (gather the signal of the line at 2, ripple device edge perpendicular to sphere), and other clutter, then cannot reflex in focus, or only have and can reflex in focus on a small quantity.
It should be noted that, sphere wave collecting device 6 can be divided into Surface of Sphere and ellipsoid two kinds, can use dissimilar wave collecting device 6 as required in different use occasions.
Further, in order to the line that ultrasonic signal can be made to be perpendicular to 2, sphere wave collecting device 6 edge, need to use alignment tools to send hyperacoustic signal source to make wave collecting device 6 aim at.Namely ultrasonic detector provided by the present invention, also comprises laser sight 8, and the laser emission port of laser sight 8 deviates from wave collecting device 6, and the laser that laser sight 8 is launched moves towards the direction away from wave collecting device 6.
Concrete, it is perpendicular with the line at 2, sphere wave collecting device 6 edge that laser sight 8 is preferably its straight line sending laser place.Like this, when laser alignment trouble spot time, just can ensure that ultrasonic signal is perpendicular to the line at 2, sphere wave collecting device 6 edge, also just maximizedly improve the amplitude that signal acquisition point 9 goes out accessed signal, improve signal picker 4 collect the precision of signal.
In order to make ultrasonic detector framework provided by the present invention more firm, and being applicable to actual use, also needing to use stationary installation to fix wave collecting device 6, ultrasound signal receipt device and laser sight 8.Namely ultrasonic detector, also comprises gun shaped support 7, and wave collecting device 6, ultrasound signal receipt device and laser sight 8 are all placed on gun shaped support 7, and laser sight 8 and wave collecting device 6 are placed in the both sides of gun shaped support 7 respectively.
Wave collecting device 6 and laser sight 8 lay respectively at the both sides on gun shaped support 7, the laser that laser sight 8 is launched linearly is propagated, if block by wave collecting device 6, this cannot play the effect of aiming, therefore, the Laser emission mouth of laser sight 8 will avoid wave collecting device 6.Meanwhile, except generating device of laser in laser sight 8, also should be provided with gauge tap, to make laser sight 8 only just work when needs, avoid the consumption of the energy and laser sight 8 itself.
Sensor (signal acquisition point 9) in theory, it is the ultrasonic signal that can receive whole this shielded point of directive, no matter namely ultrasonic signal injects signal acquisition point 9 from which kind of direction, signal acquisition point 9 all can gather ultrasonic signal, thus, misreading and storing by mistake of ultrasonic signal may be caused, and then the analysis for this ultrasonic signal may be caused to occur mistake.In order to avoid this phenomenon, in ultrasonic detector provided by the present invention, signal acquisition point 9 is provided with signal shielding layer away from the peripheral part of wave collecting device 6, and signal shielding layer is used for the ultrasonic signal that disabling signal source sends directly to signal acquisition point 9.
The effect of signal shielding layer is shielded by the ultrasonic signal of major part from other directions (non-reflect to the direction at the signal place of signal acquisition point 9 from wave collecting device 6) image pickup signal collection point 9, to stop useless ultrasonic signal, or the ultrasonic signal that only can play interference effect is filtered.
Different working environments is applied to more widely in order to ultrasonic detector can be enable, the ultrasonic detector that the embodiment of the present invention provides, also comprise in column or bore the extension probe 3 of dress, extend probe 3 and be connected with the signal acquisition point 9 of ultrasound signal receipt device.
In some tiny and long and narrow spaces (as hole, gap), be not easy directly to collect ultrasonic signal from the external world, therefore, need to use the extension probe 3 of various different size to gather ultrasonic signal.Certainly, the head and the tail extending probe 3 are provided with connecting portion 1, and making can be end to end between extension probe 3, to form longer extension probe 3.Adapter 2 can make extension probe 3 be connected with the equipment of different size.
As shown in Figures 3 and 4, several different probe is provided.Enumerate the specification of several extension probe below: the short collection sound probe of long 25mm, external diameter 10mm aluminum pipe;
The extension probe of long 324.6mm, external diameter 12.7mm aluminum pipe;
The nonconductor of long 324.6mm extends probe, external diameter 12.7mm polycarbonate pipe;
The aluminium alloy probe of diameter 9.62mm, head and the tail are provided with screw thread, and screw thread is for connecting two aluminium alloy probes.
As Fig. 5, provide centralized procurement device 4 and the collection sound head 5 of concentrated different size.
Consider material cost and result of use, in ultrasonic detector, extension probe is aluminum alloy material.
The peripheral part of ultrasonic detector provided by the present invention is also provided with die casting aluminium shell, to ensure stability and the security of detector entirety, not affected by severe working environment.
There is for the ease of ultrasonic detector the function of check, namely the whole ultrasonic signals collected can be carried out record, in order to checking when needs, ultrasonic detector provided by the present invention, also comprise reservoir, reservoir is connected with signal acquisition point, for the ultrasonic signal accessed by storage assembly collection point.
Cannot set foot in and circumstance complication region at some, ultrasound wave remote sensor can in the scope of 90 meters, with the pistol-shaped detector of the scope responded with fixed frequency, use laser alignment checked property, gather ripple device (spherical perspective dish, wave collecting device) by high precision the signal collected gathered to reflex to detector, detection instrument uses its unique process of heterodyning that these signals are converted to sound signal, allow user hear these sound by earphone, and on pointer, see that intensity indicates.Utilize ultrasonic technology to trouble spot send the reception of signal, extraction, analytical technology and remote leakage point Signal reception, reach and confirmed trouble spot information rapidly and accurately, be the another innovation to weak signal treatment technology, substantially increase detecting distance and accuracy.
Further, ultrasonic detector provided by the present invention, also comprise earphone and signal converter, earphone is electrically connected with signal acquisition point by signal converter, and the ultrasonic signal that signal converter is used for signal acquisition point to get is changed.The effect of signal converter is the voice signal that can be identified by ultrasonic signal conversion adult ear, carrys out position and the situation of Judging fault to enable user according to the voice signal sent in earphone.Ultrasonic signal is changed, to generate the sound signal that people's ear can directly be heard as used unique outer method of difference.
When using ultrasonic detector provided by the present invention, process in accordance with the following steps, to generate final testing result:
1, the laser alignment detected object sent by laser sight;
2, by wave collecting device, the ultrasonic signal be transmitted on wave collecting device is all reflected to signal acquisition point;
3, signal acquisition point sends the ultrasonic signal collected to signal converter, to carry out ultrasonic signal conversion;
4, the signal converted through signal converter stores by signal reservoir;
5, the signal converted through signal converter sends by earphone.
Wherein 4,5 liang of steps do not have tandem, namely can perform step 4 and 5 respectively after the 3rd step.
It should be noted that, when using spherical wave collecting device, in actual detection, time spherical wave collecting device is distant to wave source, spherical porosity defect just belongs to the reflection of spherical wave on convex surface.Because reflection wave is dispersed further, therefore its echo is lower.
Ultrasonic detector tool provided by the present invention has the following advantages:
1, can use in the working environment of noisy noise jamming;
2, by using laser sight, can accurate localizing faults source;
3, at larger distance received ultrasonic signal, and the quality of ultrasonic signal can be ensured;
4, detector appearance is provided with die casting aluminium shell, to ensure stability and the security of detector entirety, not affected by severe working environment;
5, can from the trouble spot remotely detecting high-risk areas (harmful gas leak point).
The ultrasonic detector that the embodiment of the present invention provides, comprise wave collecting device, ultrasound signal receipt device, gun type support, laser sight, wherein wave collecting device, ultrasound signal receipt device and laser sight are all placed on gun shaped support, specific implementation see embodiment of the method, can not repeat them here.
Those skilled in the art can be well understood to, and for convenience and simplicity of description, the specific works process of the device of foregoing description, with reference to the corresponding process in preceding method embodiment, can not repeat them here.
In several embodiments that the application provides, should be understood that disclosed device can realize by another way.Device embodiment described above is only schematic, such as, multiple assembly, or structure can in conjunction with or another system can be integrated into, or some features can be ignored, or do not hold use.
The unit illustrated as separating component or can may not be and physically separates.
The ultrasonic detector that the embodiment of the present invention provides, by being provided with the wave collecting device corresponding with signal acquisition point, make remote ultrasonic signal have passed through wave collecting device to carry out sending signal acquisition point to again after signal is gathered, the signal that signal acquisition point is got is through covert amplification, also just improve signal acquisition point collect the intensity of signal, also just improve the precision that signal picker collects signal, and further increase and use sphere wave collecting device, laser sight, gun shaped support and signal shielding layer, effective ultrasonic signal can be got by signal acquisition point more accurately, thus improve the collection Distance geometry precision of ultrasonic signal, and then make operating personnel can judge position and the problem of detected material more accurately according to ultrasonic signal, better solve deficiency of the prior art.
Above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (10)
1. ultrasonic detector, it is characterized in that, comprise: wave collecting device and ultrasound signal receipt device, described wave collecting device is placed in the side of described ultrasound signal receipt device, and corresponding with the signal acquisition point of described ultrasound signal receipt device, the ultrasonic reflections extremely described signal acquisition point of described wave collecting device for projecting on described wave collecting device.
2. ultrasonic detector according to claim 1, is characterized in that, described wave collecting device is sphere wave collecting device, and the focal length of described signal acquisition point and described sphere wave collecting device is less than default distance.
3. ultrasonic detector according to claim 2, is characterized in that, described signal acquisition point is positioned in the focus of described sphere wave collecting device.
4. ultrasonic detector according to claim 2, it is characterized in that, also comprise laser sight, the laser emission port of described laser sight deviates from described wave collecting device, and the laser that described laser sight is launched moves towards the direction away from described wave collecting device.
5. ultrasonic detector according to claim 4, it is characterized in that, also comprise gun shaped support, described wave collecting device, described ultrasound signal receipt device and described laser sight are all placed on described gun shaped support, and described laser sight and described wave collecting device are placed in the both sides of described gun shaped support respectively.
6. ultrasonic detector according to claim 1, it is characterized in that, described signal acquisition point is provided with signal shielding layer away from the peripheral part of described wave collecting device, and described signal shielding layer is used for the ultrasonic signal that disabling signal source sends directly to described signal acquisition point.
7. ultrasonic detector according to claim 1, is characterized in that, also comprise in column or bore the extension probe of dress, described extension probe is connected with the signal acquisition point of described ultrasound signal receipt device.
8. ultrasonic detector according to claim 7, is characterized in that, also comprises reservoir, and described reservoir is connected with described signal acquisition point, for storing the ultrasonic signal accessed by described signal acquisition point.
9. ultrasonic detector according to claim 7, is characterized in that, described extension probe is aluminum alloy material.
10. ultrasonic detector according to claim 1, it is characterized in that, also comprise earphone and signal converter, described earphone is electrically connected with described signal acquisition point by described signal converter, and described signal converter is used for the ultrasonic signal that described signal acquisition point gets to change.
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| CN201520641325.8U CN205003119U (en) | 2015-08-24 | 2015-08-24 | Ultrasound detectors |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105158332A (en) * | 2015-08-24 | 2015-12-16 | 河北吉信同普电子科技开发有限公司 | Ultrasonic detector |
| CN107796509A (en) * | 2016-09-06 | 2018-03-13 | 弗兰克公司 | For identifying the apparatus and method in sound wave source using las er-guidance |
| CN108120905A (en) * | 2017-12-13 | 2018-06-05 | 鼎阳智电慧服科技股份有限公司 | A kind of detection method of partial discharge of electrical equipment and its detection device |
-
2015
- 2015-08-24 CN CN201520641325.8U patent/CN205003119U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105158332A (en) * | 2015-08-24 | 2015-12-16 | 河北吉信同普电子科技开发有限公司 | Ultrasonic detector |
| CN107796509A (en) * | 2016-09-06 | 2018-03-13 | 弗兰克公司 | For identifying the apparatus and method in sound wave source using las er-guidance |
| CN107796509B (en) * | 2016-09-06 | 2021-10-26 | 弗兰克公司 | Apparatus and method for identifying acoustic wave source using laser guidance |
| CN108120905A (en) * | 2017-12-13 | 2018-06-05 | 鼎阳智电慧服科技股份有限公司 | A kind of detection method of partial discharge of electrical equipment and its detection device |
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