CN204008435U - A kind of device that detects ultrasonic cavitation intensity - Google Patents
A kind of device that detects ultrasonic cavitation intensity Download PDFInfo
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- CN204008435U CN204008435U CN201420427377.0U CN201420427377U CN204008435U CN 204008435 U CN204008435 U CN 204008435U CN 201420427377 U CN201420427377 U CN 201420427377U CN 204008435 U CN204008435 U CN 204008435U
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Abstract
The utility model relates to a kind of device that detects ultrasonic cavitation intensity, and this device comprises: light source generator, for generation of light signal; Optical splitter, for described light signal is divided into identical two ways of optical signals, wherein a road light signal sends detection segment optical fiber to, and another road light signal sends reference field optical fiber to; Described reference field optical fiber, is placed in non-cavitating district; Described detection segment optical fiber is placed in cavitation district, due to cavity crumble and fall produce shock wave and the impact of microjet to described detection segment optical fiber, the light signal in described detection segment optical fiber is changed; Detection module, for by the ultrasonic cavitation strength information that detects and compare detection segment light signal and reference field light signal and obtain cavitation district.The utility model has been realized the transient state information that obtains cavitation intensity very little on cavitation field impact in the situation that, and has using value at aspects such as quantitative evaluation ultrasonic cleaning device harmony chemical device performance, the distribution of measurement cavitation field, the variations of monitoring cavitation field.
Description
Technical field
The utility model relates to ultrasonic cavitation field, relates in particular to a kind of device that detects ultrasonic cavitation intensity.
Background technology
Ultrasonic cleaning and phonochemistry are all mainly to have utilized hyperacoustic cavitation effect, and in the industries such as machinery, medicine, electronics, chemical industry, application is very extensive.Cavitation refers to and drops to the generation of liquid hollow bubble when enough low and follow-up dynamic behavior thereof when the pressure of liquid, its main forms is the micro-bubble that occurs a large amount of continuous harmomegathus in liquid, these bubbles produce according to hyperacoustic moment in cycle and moment crumbles and fall, and form the cloud and mist of bubble.When these bubbles are crumbled and fall, can produce shock wave, in pressing close to wall, can move and form the microjet of beating to wall towards wall.Because these characteristics of cavitation make the measurement of cavitation field very difficult.Conventional method has aluminium foil cavitation corrosion method, hydrophone, iodine method for releasing etc., and these methods all exist obvious shortcoming.Aluminium foil cavitation corrosion method utilizes the cavitation corrosion effect of aluminium foil to evaluate the power of cavitation field, but very out of true of this method, cannot quantitative measurment, and repeatable very poor, and also the existence of aluminium foil can affect cavitation field, makes to measure and departs from truth; Hydrophone is to utilize measurement acoustic pressure indirectly to reflect cavitation intensity, this method is not the information that directly reflects cavitation field, pressure field and cavitation field non-equivalence under many circumstances, and nautical receiving set probe diameter is larger, can exert an influence to cavitation field, cavitation can make nautical receiving set surface that cavitation corrosion occurs, and nautical receiving set is damaged and lost efficacy; Iodine method for releasing is to utilize the chemical effect of cavitation indirectly to reflect cavitation intensity, and this chemical method and indicator relation used are very large, and with cavitation intensity nonlinear dependence, this method cannot reflect the distribution character of cavitation field in addition.The method or the index that still there is no at present a kind of good evaluation cavitation effect, each ultrasonic cleaning device producer often acts on one's own, and which is better and which is worse cannot compare for cavitation intensity, causes very mixed discussing of market.
Utility model content
The purpose of this utility model is the deficiency existing for existing ultrasonic cavitation intensity detection technology, and a kind of device that detects ultrasonic cavitation intensity is provided.
For achieving the above object, on the one hand, the utility model provides a kind of device that detects ultrasonic cavitation intensity, and this device comprises:
Light source generator, for generation of light signal;
Optical splitter, is connected with light source generator, is divided into identical two ways of optical signals for the light signal that light source generator is produced, and wherein a road light signal sends detection segment optical fiber to, and another road light signal sends reference field optical fiber to;
Reference field optical fiber, is placed in non-cavitating district;
Detection segment optical fiber, is placed in cavitation district, due to cavity crumble and fall produce shock wave and the impact of microjet to detection segment optical fiber, the light signal in detection segment optical fiber is changed;
Detection module, is connected with reference field optical fiber and detection segment optical fiber respectively, for by the ultrasonic cavitation strength information that detects and compare detection segment light signal and reference field light signal and obtain cavitation district.
On the other hand, the utility model provides the device of another kind of detection ultrasonic cavitation intensity, and this device comprises:
Light source generator, for generation of light signal;
The first optoisolator, for being one-way transmitted to light signal cavitation district detection segment optical fiber;
Detection module, obtains raster center transmission peak wavelength information or raster center reflection wavelength information according to light signal, by raster center transmission peak wavelength information or raster center reflection wavelength information acquisition cavitation district's ultrasonic cavitation strength information.
The device and method of the detection ultrasonic cavitation intensity that the utility model provides has been realized the transient state information that obtains cavitation intensity very little on cavitation field impact in the situation that, and has using value at aspects such as quantitative evaluation ultrasonic cleaning device harmony chemical device performance, the distribution of measurement cavitation field, the variations of monitoring cavitation field.
Brief description of the drawings
The application scenarios schematic diagram of the device cavitation field of the detection ultrasonic cavitation intensity that Fig. 1 (a) provides for the utility model embodiment;
The device of the detection ultrasonic cavitation intensity that Fig. 1 (b) provides for the utility model embodiment is at the application scenarios schematic diagram of water conservancy industry;
A kind of apparatus structure schematic diagram that detects ultrasonic cavitation intensity that Fig. 2 provides for the utility model embodiment;
The another kind that Fig. 3 provides for the utility model embodiment detects the apparatus structure schematic diagram of ultrasonic cavitation intensity;
Fig. 4 provide for the utility model embodiment another detect the apparatus structure schematic diagram of ultrasonic cavitation intensity;
A kind of apparatus structure schematic diagram that detects ultrasonic cavitation intensity that Fig. 5 provides for the utility model embodiment;
The another kind that Fig. 5 (a) provides for the utility model embodiment detects the apparatus structure schematic diagram of ultrasonic cavitation intensity;
Fig. 5 (b) provide for the utility model embodiment another detect the apparatus structure schematic diagram of ultrasonic cavitation intensity;
A kind of method flow schematic diagram that detects ultrasonic cavitation intensity that Fig. 6 provides for the utility model embodiment;
Fig. 7 realizes the schematic diagram that cavitation hot spot is measured in the utility model embodiment;
Fig. 8 realizes the schematic diagram that cavitation intensity line is measured in the utility model embodiment;
Fig. 9 is the schematic diagram of realizing cavitation intensity planar survey in the utility model embodiment;
Figure 10 is the schematic diagram of realizing cavitation intensity bulk measurement in the utility model embodiment.
Embodiment
After embodiment of the present utility model being described in detail with way of example below in conjunction with accompanying drawing, other features of the present utility model, feature and advantage will be more obvious.
The device of the detection ultrasonic cavitation intensity that Fig. 1 (a) provides for the utility model embodiment is at the application scenarios schematic diagram of cavitation field.As shown in Fig. 1 (a), the light signal that light source generator produces is divided into identical two ways of optical signals, and wherein a road light signal sends detection segment optical fiber to, and another road light signal sends reference field optical fiber to.Reference field optical fiber is placed in non-cavitating district, and detection segment optical fiber is placed in cavitation district, and the cavity in cavitation district is formed by the ultrasonic vibration of ultrasonic transducer generating.Due to the cavity in cavitation district crumble and fall produce shock wave and the impact of microjet to detection segment optical fiber, the light signal in detection segment optical fiber is changed.Last again by detecting and compare the ultrasonic cavitation strength information in detection segment light signal and reference field light signal acquisition cavitation district.
The device of the detection ultrasonic cavitation intensity that Fig. 1 (b) provides for the utility model embodiment is at the application scenarios schematic diagram of water conservancy industry.Dam and flood discharging tunnel, because the mobile speed of fluid is very high, form low-pressure area in some region, are easy to occur cavitation, thereby cause the cavitation erosion of dam and flood discharging tunnel.The generation of cavitation corrosion, directly affects life-span of hydraulic structure, even causes the accident of whole buildings.The utility model embodiment can be used for monitoring the cavitation erosion of hydraulic structure, position and the degree of definite cavitation corrosion promptly and accurately under the prerequisite that does not affect operation.As shown in Fig. 1 (b), it in figure, is the schematic diagram of flood discharging tunnel, anti-segmental arc end and downstream at flood discharging tunnel are easy to occur cavitation erosion (pore represents cavitation district), on the top layer in this region and hydraulic structure inside (while building flood discharging tunnel, being laid in advance interior of building) by different depth layering laying optical fiber net, the signal of each root optical fiber of detection that can be real-time or regular.If cavitation erosion occurs for a certain region, waterwork deposits yields cavitation corrosion hole, makes bare optical be exposed at cavitation corrosion district, and fiber-optic signal is abnormal, just can judge it is that cavitation corrosion has occurred in which longitude and latitude region by detection fiber signal, and cavitation corrosion is cheated and developed how dark etc. information.Thereby scent a hidden danger in time, reduce and shut down artificial inspection.Fig. 1 (b) is side sectional view, and the dot-and-dash line below anti-segmental arc represents optical fiber layer, and every one deck optical fiber layer is net distribution (referring to Fig. 1 (b) lower left corner).
A kind of apparatus structure schematic diagram that detects ultrasonic cavitation intensity that Fig. 2 provides for the utility model embodiment.As shown in Figure 2, this device comprises light source generator 100, optical splitter 200, detection module 300, detection segment optical fiber and reference field optical fiber, and wherein light source generator 100 is for generation of light signal; Optical splitter 200 is divided into identical two ways of optical signals for the light signal that light source generator 100 is produced, wherein a road light signal sends detection segment optical fiber to, another road light signal sends reference field optical fiber to, and above-mentioned reference field optical fiber is placed in non-cavitating district, and detection segment optical fiber is placed in cavitation district; In cavitation district cavity crumble and fall produce shock wave and the impact of microjet to detection segment optical fiber, the light signal in detection segment optical fiber is changed.Detection module 300 is connected with reference field optical fiber and detection segment optical fiber respectively, by detecting and compare the ultrasonic cavitation strength information in detection segment light signal and reference field light signal acquisition cavitation district.
To it should be noted that, to detect effect and test effect in order strengthening, can on reference field optical fiber and detection segment optical fiber, stamp micropore or carve with groove, make cavity be easy to reside in micropore or groove; On reference field optical fiber and detection segment optical fiber, sheath is set, to avoid optical fiber to avoid cavitation impact, controls test section scope simultaneously.
The utility model embodiment is not only applicable to the detection of ultrasonic cavitation, is also applicable to the detection of Hydrodynamic cavitation or other cavitations.The device and method of the detection ultrasonic cavitation intensity that the utility model embodiment provides has been realized the online transient state information that obtains cavitation intensity very little on cavitation field impact in the situation that, and has using value at aspects such as quantitative evaluation ultrasonic cleaning device harmony chemical device performance, the distribution of measurement cavitation field, the variations of monitoring cavitation field.
The another kind that Fig. 3 provides for the utility model embodiment detects the apparatus structure schematic diagram of ultrasonic cavitation intensity.As shown in Figure 3, the difference of the device of the detection ultrasonic cavitation intensity shown in itself and Fig. 2 is: detection module 300 comprises the first photoelectric commutator 310, the second photoelectric commutator 311 and analytic unit 312, the first photoelectric commutator 310 is connected with detection segment optical fiber, the second photoelectric commutator 311 is connected with reference field optical fiber, and analytic unit 312 is connected with the first photoelectric commutator 310 and the second photoelectric commutator 311 respectively.
The course of work of the device of the detection ultrasonic cavitation intensity shown in Fig. 3 is as follows:
Light source generator 100 produces light signal, the light signal that optical splitter 200 produces light source generator 100 is divided into identical two ways of optical signals, wherein a road light signal sends detection segment optical fiber to, another road light signal sends reference field optical fiber to, reference field optical fiber is placed in non-cavitating district, and detection segment optical fiber is placed in cavitation district.The first photoelectric commutator 310 and the second photoelectric commutator 311 are converted into electric signal by the light signal of reception respectively.Because shock wave and microjet that a large amount of cavitys produce in the time that detection segment optical fiber annex is crumbled and fall can be beaten at optical fiber surface, make optical fiber produce instantaneous small bending, fiber microbending loss can cause optical power change, therefore determines the ultrasonic cavitation strength information in cavitation district by the electrical signal amplitude after analytic unit 312 analyzing and testing section light signal conversions and the electrical signal amplitude after the conversion of reference field light signal.
It should be noted that, after the electrical signal amplitude before analytic unit 312 can occur by cavitation relatively equally after the conversion of detection segment light signal occurs with cavitation, the electrical signal amplitude of detection segment light signal after changing determined the ultrasonic cavitation strength information in cavitation district.
Fig. 4 provide for the utility model embodiment another detect the apparatus structure schematic diagram of ultrasonic cavitation intensity.As shown in Figure 4, the difference of the device of the detection ultrasonic cavitation intensity shown in itself and Fig. 2 is: detection module 300 comprises coupling mechanism 320, photoelectric commutator 321 and analytic unit 322, wherein coupling mechanism 320 input ends are connected with reference field optical fiber and detection segment optical fiber respectively, its output terminal is connected with the import and export end of photoelectric commutator 321, and the output terminal of photoelectric commutator 321 is connected with analytic unit 322.
The course of work of the device of the detection ultrasonic cavitation intensity shown in Fig. 4 is as follows:
Light source generator 100 produces light signal, and the light signal that optical splitter 200 produces light source generator 100 is divided into identical two ways of optical signals, and wherein a road light signal sends detection segment optical fiber to, and another road light signal sends reference field optical fiber to.Coupling mechanism 320 is by detection segment light signal and the synthetic road light signal of reference field light signal, the light signal behind a synthetic road is converted into electric signal by photoelectric commutator 321, because shock wave and microjet that a large amount of cavitys produce in the time that detection segment optical fiber annex is crumbled and fall can be beaten at optical fiber surface, can produce photoelastic effect at inside of optical fibre, the phase place of light signal is changed, and the phase place of therefore analyzing the electric signal after transforming by analytic unit 322 is determined the ultrasonic cavitation strength information in cavitation district.
A kind of apparatus structure schematic diagram that detects ultrasonic cavitation intensity that Fig. 5 provides for the utility model embodiment.As shown in Figure 5, this device comprises light source generator 100, optoisolator 400, detection module 500, wherein, light source generator 100 is for generation of light signal, optoisolator 400 is one-way transmitted to light signal the detection segment optical fiber at place, cavitation district, detection module 500 gather and analyze before cavitation and cavitation after light signal obtain cavitation district ultrasonic cavitation strength information.
The another kind that Fig. 5 (a) provides for the utility model embodiment detects the apparatus structure schematic diagram of ultrasonic cavitation intensity.As shown in Fig. 5 (a), the difference of the device of the detection ultrasonic cavitation intensity shown in itself and Fig. 5 is: detection module 500 comprises coupling mechanism 510, grating 520, the second optoisolator 530, photoelectric commutator 540 and analytic unit 550, wherein, the input end of coupling mechanism 510 is connected with the detection segment optical fiber in cavitation district, and its output terminal is connected with the input end of grating 520; The input end of the second optoisolator 530 is connected with the output terminal of grating 520, and its output terminal is connected with the input end of photoelectric commutator 540; The input end of analytic unit 550 is connected with the output terminal of photoelectric commutator 540.
The course of work of the device of the detection ultrasonic cavitation intensity shown in Fig. 5 (a) is as follows:
Light source generator 100 produces light signal, the light signal that optoisolator 400 produces light source generator 100 is one-way transmitted to the detection segment optical fiber at place, cavitation district, light signal transfers to grating 520 through coupling mechanism 510, obtain the raster center transmission peak wavelength information of light signal by grating 520, the raster center transmission peak wavelength information of light signal is one-way transmitted to photoelectric commutator 540 by the second optoisolator 530, because shock wave and microjet that a large amount of cavitys produce in the time that detection segment optical fiber annex is crumbled and fall can be beaten at optical fiber surface, make fiber core effectively reflect and change, and then raster center transmission peak wavelength is changed, therefore analyze before cavitation by analytic unit 550 and cavitation after raster center transmission peak wavelength information acquisition cavitation district's ultrasonic cavitation strength information of light signal.
Fig. 5 (b) provide for the utility model embodiment another detect the apparatus structure schematic diagram of ultrasonic cavitation intensity.As shown in Fig. 5 (b), the difference of the device of the detection ultrasonic cavitation intensity shown in itself and Fig. 5 is: detection module 500 comprises coupling mechanism 510, grating 520, the second optoisolator 530, photoelectric commutator 540 and analytic unit 550, wherein the input end of coupling mechanism 510 is connected with detection segment optical fiber, grating 520 output terminals respectively, and its output terminal is connected with the input end of grating 520, the input end of the second optoisolator 530 respectively; The output terminal of the second optoisolator 530 is connected with the input end of photoelectric commutator 540; The input end of analytic unit 550 is connected with the output terminal of photoelectric commutator 540.
The course of work of the device of the detection ultrasonic cavitation intensity shown in Fig. 5 (b) is as follows:
Light source generator 100 produces light signal, the light signal that optoisolator 400 produces light source generator 100 is one-way transmitted to the detection segment optical fiber at place, cavitation district, light signal transfers to grating 520 through coupling mechanism 510, after grating 520 reflected light, be transferred to the second optoisolator 530 through coupling mechanism 510 again, raster center reflection wavelength information is one-way transmitted to photoelectric commutator 540 by the second optoisolator 530, convert to after electric signal through photoelectric commutator 540, raster center reflection wavelength information acquisition cavitation strength information before passing through to analyze cavitation by analytic unit 550 and after cavitation.
The device of the detection ultrasonic cavitation intensity that the utility model embodiment provides has been realized the transient state information that obtains cavitation intensity very little on cavitation field impact in the situation that, and has using value at aspects such as quantitative evaluation ultrasonic cleaning device harmony chemical device performance, the distribution of measurement cavitation field, the variations of monitoring cavitation field.
A kind of method flow schematic diagram that detects ultrasonic cavitation intensity that Fig. 6 provides for the utility model embodiment.As shown in Figure 6, the method comprising the steps of 601-603:
Step 601, produces light signal.
Particularly, produce light signal by the light source of the device that detects ultrasonic cavitation intensity, light source can be laser, polarized light, glow discharge spot lamp or light emitting diode etc.
Step 602, is divided into identical two ways of optical signals by light signal, and wherein a road light signal sends detection segment optical fiber to, and another road light signal sends reference field optical fiber to; Reference field optical fiber is placed in non-cavitating district, and detection segment optical fiber is placed in cavitation district.
Particularly, the light signal of light source generation is divided into two identical light signals by the device that detects ultrasonic cavitation intensity, wherein a road light signal sends detection segment optical fiber to, another road light signal sends reference field optical fiber to, and detection segment optical fiber and reference field optical fiber arrange respectively one or more in sheath, micropore and groove.Reference field optical fiber is placed in non-cavitating district; Detection segment optical fiber is placed in cavitation district, and it is arranged and can arrange as the case may be, and detection segment fibre diameter is according to circumstances from several microns to hundreds of micron, very thin, very little on sound field impact.
Step 603, by detecting and compare the cavitation strength information in detection segment light signal and reference field light signal acquisition cavitation district.
Particularly, the device that detects ultrasonic cavitation intensity is by detecting and compare the cavitation strength information in detection segment light signal and reference field light signal acquisition cavitation district.
In one embodiment, detection segment light signal and described reference field light signal are separately converted to electric signal by the device of detection ultrasonic cavitation intensity; Determine the cavitation strength information in cavitation district by the electrical signal amplitude after the electrical signal amplitude after the conversion of analyzing and testing section light signal and the conversion of reference field light signal.The principle of the present embodiment is that shock wave and microjet that a large amount of cavitys in cavitation district produce in the time crumbling and fall near test optical fiber section can beat at optical fiber surface, make optical fiber produce instantaneous small bending, fiber microbending loss can cause optical power change, and the amplitude of the light signal gathering by analysis obtains the information of cavitation intensity.
In another embodiment, the device that detects ultrasonic cavitation intensity is by detection segment light signal and the synthetic road light signal of described reference field light signal; Light signal behind a synthetic road is converted into electric signal; The phase place of the electric signal after transforming by analysis is determined the cavitation strength information in cavitation district.The principle of the present embodiment is that shock wave and microjet that a large amount of cavitys in cavitation district produce while crumbling and fall near test optical fiber section can beat at optical fiber surface, can produce photoelastic effect at inside of optical fibre, the phase place of light signal is changed, and the phase place of the light signal gathering by analysis obtains the information of cavitation intensity.
In yet another embodiment, the device that detects ultrasonic cavitation intensity is by detection segment light signal and the synthetic road light signal of reference field light signal; Obtain raster center transmission peak wavelength information according to the light signal behind a synthetic road; Determine the cavitation strength information in cavitation district by analyzing raster center transmission peak wavelength information.The principle of the present embodiment is that shock wave and microjet that a large amount of cavitys in cavitation district produce while crumbling and fall near detection segment optical fiber can beat at detection segment optical fiber surface, detection segment fiber core effective refractive index is changed, and then raster center transmission peak wavelength is changed, the raster center transmission peak wavelength of the light signal gathering by analysis obtains the information of cavitation intensity.
The method of the detection ultrasonic cavitation intensity that the utility model embodiment provides can realize the point measurement (schematic diagram as shown in Figure 7) of cavitation intensity by optical fiber, the line of cavitation intensity is measured (shown in the Fig. 8 of schematic diagram institute), the planar survey (schematic diagram as shown in Figure 9) of cavitation intensity and the bulk measurement (schematic diagram as shown in figure 10) of cavitation intensity.In the time that logical optical fiber carries out line measurement, planar survey and bulk measurement, the result of acquisition is by the evaluation that is the cavitation Strength Space average on line, on face, on body.
The method of the detection ultrasonic cavitation intensity that the utility model embodiment provides has realized the online transient state information that obtains cavitation intensity very little on cavitation field impact in the situation that, and has using value at aspects such as quantitative evaluation ultrasonic cleaning device harmony chemical device performance, the distribution of measurement cavitation field, the variations of monitoring cavitation field.
Obviously, do not departing under the prerequisite of true spirit of the present utility model and scope, the utility model described here can have many variations.Therefore, all changes that it will be apparent to those skilled in the art that, within all should being included in the scope that these claims contain.The utility model scope required for protection is only limited by described claims.
Claims (8)
1. a device that detects ultrasonic cavitation intensity, is characterized in that, comprising:
Light source generator, for generation of light signal;
Optical splitter, for described light signal is divided into identical two ways of optical signals, wherein a road light signal sends detection segment optical fiber to, and another road light signal sends reference field optical fiber to;
Reference field optical fiber, is placed in non-cavitating district;
Detection segment optical fiber, is placed in cavitation district, due to cavity crumble and fall produce shock wave and the impact of microjet to described detection segment optical fiber, the light signal in described detection segment optical fiber is changed;
Detection module, is connected with described reference field optical fiber and described detection segment optical fiber respectively, for by the ultrasonic cavitation strength information that detects and compare detection segment light signal and reference field light signal and obtain cavitation district.
2. the device of detection ultrasonic cavitation intensity according to claim 1, it is characterized in that, described detection module comprises the first photoelectric commutator, the second photoelectric commutator and analytic unit, described the first photoelectric commutator is connected with described detection segment optical fiber, for converting described detection segment light signal to electric signal; Described the second photoelectric commutator is connected with described reference field optical fiber, for converting described reference field light signal to electric signal; Described analytic unit is connected with described the first photoelectric commutator and described the second photoelectric commutator, for determine the ultrasonic cavitation strength information in cavitation district by analyzing electrical signal amplitude after electrical signal amplitude and the conversion of described reference field light signal after the conversion of described detection segment light signal.
3. the device of detection ultrasonic cavitation intensity according to claim 1, it is characterized in that, described detection module comprises coupling mechanism, photoelectric commutator and analytic unit, described coupling mechanism one end is connected with described reference field optical fiber and described detection segment optical fiber respectively, for described detection segment light signal and described reference field light signal are synthesized to a road light signal; Described photoelectric commutator one end is connected with the described coupling mechanism other end, in order to convert the light signal of described coupling mechanism output to electric signal; The described photoelectric commutator other end is connected with described analytic unit, and described analytic unit is determined the ultrasonic cavitation strength information in cavitation district for the phase place of the electric signal after transforming by analysis.
4. according to the device of the detection ultrasonic cavitation intensity described in arbitrary claim in claims 1 to 3, it is characterized in that, described detection segment optical fiber and described reference field optical fiber are respectively arranged with one or more in sheath, micropore and groove.
5. a device that detects ultrasonic cavitation intensity, is characterized in that, comprising:
Light source generator, for generation of light signal;
The first optoisolator, for being one-way transmitted to described light signal the detection segment optical fiber in cavitation district;
Detection module, obtains raster center transmission peak wavelength information or raster center reflection wavelength information according to described light signal, by described raster center transmission peak wavelength information or raster center reflection wavelength information acquisition cavitation district's ultrasonic cavitation strength information.
6. device according to claim 5, is characterized in that, described detection module comprises coupling mechanism, grating, the second optoisolator, photoelectric commutator and analytic unit; The input end of described coupling mechanism is connected with described detection segment optical fiber, and its output terminal is connected with the input end of described grating; The input end of described the second optoisolator is connected with the output terminal of described grating, and its output terminal is connected with the input end of described photoelectric commutator; The input end of described analytic unit is connected with the output terminal of described photoelectric commutator, and described analytic unit is by analyzing raster center transmission peak wavelength information acquisition cavitation district's ultrasonic cavitation strength information of described light signal.
7. device according to claim 5, is characterized in that, described detection module comprises coupling mechanism, grating, the second optoisolator, photoelectric commutator and analytic unit; The input end of described coupling mechanism is connected with described detection segment optical fiber and described grating output terminal respectively, and its output terminal is connected with the input end of described grating and the input end of described the second optoisolator respectively; The output terminal of described the second optoisolator is connected with the input end of described photoelectric commutator; The input end of described analytic unit is connected with the output terminal of described photoelectric commutator, and described analytic unit is by analyzing raster center reflection wavelength information acquisition cavitation district's ultrasonic cavitation strength information of described light signal.
8. according to the device of the detection ultrasonic cavitation intensity described in the arbitrary claim in claim 5 to 7, it is characterized in that, described detection segment optical fiber is provided with one or more in sheath, micropore and groove.
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| CN201420427377.0U CN204008435U (en) | 2014-07-30 | 2014-07-30 | A kind of device that detects ultrasonic cavitation intensity |
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| CN201420427377.0U CN204008435U (en) | 2014-07-30 | 2014-07-30 | A kind of device that detects ultrasonic cavitation intensity |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107649467A (en) * | 2017-09-05 | 2018-02-02 | 哈尔滨学院 | Pipeline cavitation cleaning performance detecting system |
| CN108827876A (en) * | 2018-04-03 | 2018-11-16 | 中国科学院声学研究所 | A kind of measurement method of cavitation cloud cavitation intensity |
| CN114034664A (en) * | 2021-11-10 | 2022-02-11 | 山东省科学院激光研究所 | Plastic optical fiber refractive index sensor based on V-shaped structure and working method thereof |
-
2014
- 2014-07-30 CN CN201420427377.0U patent/CN204008435U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107649467A (en) * | 2017-09-05 | 2018-02-02 | 哈尔滨学院 | Pipeline cavitation cleaning performance detecting system |
| CN107649467B (en) * | 2017-09-05 | 2019-06-28 | 大连海事大学 | Pipeline cavitation cleaning effect detection system |
| CN108827876A (en) * | 2018-04-03 | 2018-11-16 | 中国科学院声学研究所 | A kind of measurement method of cavitation cloud cavitation intensity |
| CN114034664A (en) * | 2021-11-10 | 2022-02-11 | 山东省科学院激光研究所 | Plastic optical fiber refractive index sensor based on V-shaped structure and working method thereof |
| CN114034664B (en) * | 2021-11-10 | 2024-03-01 | 山东省科学院激光研究所 | Plastic optical fiber refractive index sensor based on V-shaped structure and working method thereof |
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