CN106769651A - The density lossless detection method and device of high-tension switch gear quenching nozzle - Google Patents
The density lossless detection method and device of high-tension switch gear quenching nozzle Download PDFInfo
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
- G01N9/24—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by observing the transmission of wave or particle radiation through the material
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Abstract
The present invention relates to the density lossless detection method and device of a kind of high-tension switch gear quenching nozzle, lossless detection method therein includes：Ultrasonic pulse is launched to quenching nozzle to be measured；Detect the ultrasonic velocity in quenching nozzle to be measured and obtain the peak amplitude of quenching nozzle bottom surface ultrasonic reflections signal to be measured；The peak amplitude of ultrasonic velocity and reflected signal is compared with relation storehouse, and then obtains the density of quenching nozzle to be measured；The relation storehouse is the corresponding relation of the peak amplitude that ultrasonic velocity and quenching nozzle bottom surface ultrasonic reflections signal in quenching nozzle density and quenching nozzle that ultrasonic test is obtained are carried out by the different quenching nozzle test sample of the various density to demarcating.The detection method can effectively realize the Non-Destructive Testing of high-tension switch gear quenching nozzle density.
Description
Technical field
The present invention relates to the density lossless detection method and device of a kind of high-tension switch gear quenching nozzle, belong to insulation
Material NDT and NDE technical field.
Background technology
Quenching nozzle is control electric arc, the core component of creation high-speed air-blowing condition in SF6 primary cut-out arc-control devices,
It should not only have excellent electric property, mechanical performance and chemical stability, while should also have excellent arc ablation resistance
Energy.Quenching nozzle material is made up of polytetrafluoroethylene (PTFE) and alundum (Al2O3) inorganic filler, and the viscosity of polytetrafluoroethylene (PTFE) molten state is high
Up to 1011~1012pas, do not flow substantially, so melt-processed method can neither be used, dissolving processing method can not be used.In production
In typically use cold-rolled sintered method, first by polytetrafluoroethylene (PTFE) and filler carry out batch mixing, compacting and sinter, be made simple shape
Blank, then obtain complex-shaped, dimensional accuracy spout parts high by machining.Using going out that above-mentioned technique is manufactured
Arc spout, because filling alumina is different with the density of teflon resin powder, if mixed in compound process
The control of material method, press power or press time is improper, and the phenomenon that spout local density reduces often occurs.Density is influence spray
The important indicator of mouth performance, density reduction can cause spout electrical strength, tensile strength, case hardness reduction, in open circuit
There is breakdown accident in device interrupting process.
At present, the means commonly used in the quality testing of quenching nozzle parts are X-ray real time imageries, and the method is for spout
The internal isometric type defect of metal inclusion and stomata is more sensitive.But, due to decay system of the X-ray inside vent material
Number is smaller, and the minor variations of spout density can hardly cause the difference of image blackness, thus detection spirit on X-ray imaging plate
Sensitivity is very low.For now, in spout parts production process, reduce defect for density and still lack available lossless inspection
Survey method.
The content of the invention
It is an object of the invention to provide the density lossless detection method and device of a kind of high-tension switch gear quenching nozzle,
For solving the Non-Destructive Testing of quenching nozzle parts density this technical problem.
In order to solve the above technical problems, the invention provides a kind of lossless inspection of density of high-tension switch gear quenching nozzle
Survey method, including following scheme：
Method scheme one：Including
Step 1, ultrasonic pulse is launched to quenching nozzle to be measured；
Step 2, detects ultrasonic velocity in the quenching nozzle to be measured and obtains quenching nozzle bottom surface to be measured and surpass
The peak amplitude of sound wave reflected signal；
Step 3, the peak amplitude of the ultrasonic velocity and reflected signal is compared with relation storehouse, and then obtains institute
State the density of quenching nozzle to be measured；The relation storehouse is to carry out ultrasound by the quenching nozzle test sample different to various density
Ultrasonic velocity and quenching nozzle bottom surface ultrasonic reflections letter in quenching nozzle density and quenching nozzle that ripple test is obtained
Number peak amplitude corresponding relation.
Method scheme two：By repeated detection method is averaged on the basis of method scheme one, in step 2 to obtain in institute
State the peak amplitude of the ultrasonic velocity and quenching nozzle bottom surface ultrasonic reflections signal to be measured in quenching nozzle to be measured.
Method scheme three：On the basis of method scheme one or method scheme two, the step in the relation storehouse is obtained in step 3
Suddenly include：
(1) the quenching nozzle test sample of different densities standard is obtained；
(2) ultrasonic pulse is launched to the quenching nozzle test sample；
(3) detect the ultrasonic velocity in the quenching nozzle test sample and obtain the quenching nozzle test sample
The peak amplitude of bottom surface ultrasonic reflections signal；
(4) density of the quenching nozzle test sample is measured；
(5) ultrasonic velocity in density according to the quenching nozzle test sample, quenching nozzle test sample and go out
The peak amplitude of arc spout test sample bottom surface ultrasonic reflections signal, sets up quenching nozzle density with ultrasound in quenching nozzle
The relation storehouse of wave velocity and quenching nozzle bottom surface ultrasonic reflections signal peak amplitude corresponding relation.
Method scheme four：On the basis of method scheme three, assay balance and Archimedes's drainage are utilized in step (4)
Principle measures the density of the quenching nozzle test sample.
Present invention also offers a kind of density the cannot-harm-detection device of high-tension switch gear quenching nozzle, including with lower section
Case：
Device scheme one：Including
Unit for launching quenching nozzle to be measured ultrasonic pulse；
For detecting the ultrasonic velocity in the quenching nozzle to be measured and obtaining quenching nozzle bottom surface ultrasound to be measured
The unit of the peak amplitude of wave reflection signal；
For the peak amplitude of the ultrasonic velocity and reflected signal to be compared with relation storehouse, and then obtain described
The unit of the density of quenching nozzle to be measured；The relation storehouse is carried out by the quenching nozzle test sample different to various density
Ultrasonic velocity and quenching nozzle bottom surface ultrasonic wave in the quenching nozzle density that ultrasonic test is obtained and quenching nozzle is anti-
Penetrate the corresponding relation of the peak amplitude of signal.
Device scheme two：On the basis of device scheme one, average method by repeated detection to obtain described to be measured
The peak amplitude of ultrasonic velocity and quenching nozzle bottom surface ultrasonic reflections signal to be measured in quenching nozzle.
Device scheme three：On the basis of device scheme one or device scheme two, the device for obtaining the relation storehouse includes：
Unit for obtaining the quenching nozzle test sample of different densities standard；
Unit for launching the quenching nozzle test sample ultrasonic pulse；
For detecting the ultrasonic velocity in the quenching nozzle test sample and obtaining the quenching nozzle test specimens
The unit of the peak amplitude of product bottom surface ultrasonic reflections signal；
Unit for measuring the density of the quenching nozzle test sample；
For the density according to the quenching nozzle test sample, the ultrasonic velocity in quenching nozzle test sample and go out
The peak amplitude of arc spout test sample bottom surface ultrasonic reflections signal, sets up quenching nozzle density with ultrasound in quenching nozzle
The unit in the relation storehouse of wave velocity and quenching nozzle bottom surface ultrasonic reflections signal peak amplitude corresponding relation.
Device scheme four：On the basis of device scheme three, the density for measuring the quenching nozzle test sample
Unit measures the density of the quenching nozzle test sample using assay balance and Archimedes's drainage principle.
The beneficial effects of the invention are as follows：By detecting that the ultrasonic velocity in quenching nozzle to be measured and arc extinguishing to be measured spray
The peak amplitude of mouth bottom surface ultrasonic reflections signal, compares quenching nozzle density with ultrasonic velocity and arc extinguishing in quenching nozzle
The relation storehouse of spout bottom surface ultrasonic reflections signal peak amplitude corresponding relation, and then the density of quenching nozzle to be measured is obtained,
The Non-Destructive Testing of quenching nozzle is effectively realized, for the safety analysis of primary cut-out arc-control device provides effective foundation.
Brief description of the drawings
Fig. 1 is the quenching nozzle test specimen obtained under 5 kinds of different pressures；
Fig. 2 is the structure chart of ultrasonic wave detecting system；
Fig. 3-1 is ultrasonic reflections signal peak changes in amplitude figure when press pressure is set as 70kN；
Fig. 3-2 is ultrasonic reflections signal peak changes in amplitude figure when press pressure is set as 80kN；
Fig. 3-3 is ultrasonic reflections signal peak changes in amplitude figure when press pressure is set as 90kN；
Fig. 3-4 is ultrasonic reflections signal peak changes in amplitude figure when press pressure is set as 110kN；
Fig. 3-5 is ultrasonic reflections signal peak changes in amplitude figure when press pressure is set as 123kN；
Fig. 4 is the ultrasonic reflections signal peak width of the spout test block that is obtained at various pressures in different sampled points
Degree；
Fig. 5 is the ultrasonic velocity in different sampled points in the spout test block for being obtained at various pressures；
Fig. 6 is the peak amplitude of the quenching nozzle test sample ultrasonic reflections signal for being obtained at various pressures and go out
The contrast relationship of arc spout test sample density；
Fig. 7 is that the ultrasonic velocity in the quenching nozzle test sample for being obtained at various pressures is tested with quenching nozzle
The contrast relationship of sample rate.
Specific embodiment
The present invention will be further described in detail below in conjunction with the accompanying drawings.
The embodiment of the density lossless detection method of high-tension switch gear quenching nozzle.
First, quenching nozzle density is obtained with ultrasonic velocity and quenching nozzle bottom surface ultrasonic reflections in quenching nozzle
The relation storehouse of signal peak amplitude corresponding relation, mainly includes the following steps that：
(1) the quenching nozzle test sample of different densities standard is obtained.
The production procedure of quenching nozzle parts is：Batch mixing-molding-sintering-machining-cleaning and packaging.It is logical
Cross change mold process in press pressure can obtain a series of density it is different spout compacting blank, afterwards through oversintering,
Machining obtains spout sample.Press pressure is respectively set as 70kN, 80kN, 90kN, 110kN and 123kN, final to obtain
Cylindrical test samples it is as shown in Figure 1.
(2) ultrasonic pulse is launched to quenching nozzle test sample.
The measurement of correlation of ultrasonic wave, set detection are carried out in the present embodiment using the portable supersonic detecting system for building
System is dodged by Portable ultrasonic flaw detector, data wire, three-way connector, ultrasonic probe, couplant, digital oscilloscope, USB
Deposit and computer composition, system construction drawing are as shown in Figure 2.Portable ultrasonic flaw detector in the present embodiment uses U.S. GE
The USM Go supersonic detectors of company's production, the model 2.5Z10N of ultrasonic probe.Realized using data wire portable super
Electrical connection between sonic analyzer and three-way connector, one end of three-way connector by data wire and ultrasonic probe it
Between realize electrical connection, the other end of three-way connector passes through to realize electrical connection between data wire and digital oscilloscope, by coupling
Mixture is applied to the position to be detected of spout density test block, using ultrasonic probe to daubing coupling agent in spout density test block
Detected at position.
Certainly, in the case where being capable of achieving to quenching nozzle test sample ultrasonic wave measurement of correlation, can also use existing
Ultrasonic wave detecting system.
(3) detect the ultrasonic velocity in quenching nozzle test sample and obtain the quenching nozzle test sample bottom surface
The peak amplitude of ultrasonic reflections signal.
Ultrasonic signal collection is carried out to the spout test sample of different densities using the ultrasonic wave detecting system for building.Adopt
Measured with pulse reflection detection mode, record quenching nozzle test sample upper surface and bottom respectively with digital oscilloscope
, be transferred to Wave data on computer through USB flash drive be analyzed by the ultrasonic reflections signal in face.Fig. 3-1 Dao Fig. 3-5 points
The collection result of the ultrasonic signal reflected signal of the spout test sample obtained under 5 kinds of different pressures is not given, it is every kind of
The spout test sample obtained under pressure carries out 10 samplings respectively.Directly read in the oscillogram that Fig. 3-1 to Fig. 3-5 is given
Go out the peak amplitude of the spout test block that is obtained at various pressures in the bottom surface ultrasonic reflections signal of different sampled points, such as
Shown in Fig. 4.
In Fig. 3-1 to Fig. 3-5, measure between spout test sample upper surface and bottom surface ultrasonic reflections signal
Time interval Δ t, 5 kinds of thickness ds of different densities spout sample is measured with slide measure, then the calculating of the velocity of sound c of spout respectively
Formula is：
According to formula (1), the ultrasound of the spout test sample that is obtained under 5 kinds of different pressures in different sampled points is asked for
Wave sound speed, result of calculation is as shown in Figure 5.
(4) density of quenching nozzle test sample is measured.
20 × 10mm of φ are intercepted on the spout sample for having processed using mach method2Cylindrical test block,
Density measure is carried out to the quenching nozzle test block for being obtained using assay balance and Archimedes's drainage principle.First in air
In measure the quality m of cylindrical test block1, the tank being filled with water is put into assay balance afterwards, balance is returned to zero, after zeroing
Sample is put into tank, sample is completely submerged in water, the quality now measured is m2, then the density p of cylindrical test block
Expression formula is：
Wherein, ρWaterRepresent the density of water.
Spout test sample under 5 kinds of different on-load pressures is measured using the above method, wherein every kind of test sample
Carry out 5 measurements to average, the density of 5 kinds of measured test samples is respectively 2.18875g/cm3、2.18067g/cm3、
2.18933g/cm3、2.199g/cm3And 2.198g/cm3.It can be seen that, with on-load pressure increase spout density on the whole gradually
Increase, the density that the density under 80kN is slightly less than under 70kN, 120kN is slightly less than 110kN.
(5) ultrasonic velocity in density according to the quenching nozzle test sample for being obtained, quenching nozzle test sample
With the peak amplitude of quenching nozzle test sample bottom surface ultrasonic reflections signal, set up in quenching nozzle density and quenching nozzle
The relation storehouse of ultrasonic velocity and quenching nozzle bottom surface ultrasonic reflections signal peak amplitude corresponding relation.
For the quenching nozzle material being evenly distributed, the expression formula of the ultrasonic velocity c in quenching nozzle is：
Wherein, E is the elastic modelling quantity of material, and unit is Gpa, and ρ is density of material, and unit is g/cm3.When vent material is close
When degree reduces, internal void content increases, and elastic modelling quantity will also reduce, and the reductions specific density of E reduction faster, i.e., it is elastic
The Density Derivatives of modulus are more thanTherefore the variable density of vent material can be measured with velocity of sound c.Ultrasound
Wave attenuation is the key factor for influenceing reflected signal amplitude, and when vent material density reduces, its voids content increases, and causes to decline
Subtract coefficient increase, bottom reflection wave energy reduces, therefore the density of vent material can be measured with bottom reflection wave amplitude and become
Change.
Fig. 6 and Fig. 7 sets forth the bottom surface reflection of the quenching nozzle test sample obtained under 5 kinds of different pressures
The contrast relationship of ultrasonic velocity and quenching nozzle test sample density in crest value amplitude and quenching nozzle test sample.By
Fig. 6 and Fig. 7 can be seen that the variation relation and quenching nozzle test sample bottom surface back wave of quenching nozzle test sample density
There is good correspondence between the variation relation of the ultrasonic velocity in peak amplitude and quenching nozzle test sample, therefore can
The velocity of sound and peak amplitude, as parameter, is set up in quenching nozzle density and quenching nozzle under ultrasonic velocity and quenching nozzle
The relation storehouse of bottom surface ultrasonic reflections signal peak amplitude corresponding relation.When needing to measure the density of quenching nozzle, it is only necessary to
The peak amplitude of the ultrasonic velocity and quenching nozzle bottom surface ultrasonic reflections signal to be measured in quenching nozzle to be measured is obtained,
And compare with relation storehouse, you can obtain the density of quenching nozzle to be measured.
In the above-described embodiments, only it is specifically to introduce by taking 5 kinds of quenching nozzle test samples of different densities standard as an example
Quenching nozzle density is set up with ultrasonic velocity and quenching nozzle bottom surface ultrasonic reflections signal peak amplitude in quenching nozzle
The method in the relation storehouse of corresponding relation, it is necessary to the quenching nozzle of various density criterions during actual opening relationships storehouse
Test sample carries out multiple repairing weld, and the species of the density criterion selected is more, and the sampling number of every kind of density is more, is set up
Quenching nozzle density and quenching nozzle in ultrasonic velocity and quenching nozzle bottom surface ultrasonic reflections signal peak amplitude pair
Information in the relation storehouse that should be related to is more complete and accurate.
Certainly, ultrasonic velocity and quenching nozzle lower surface ultrasonic reflections letter in quenching nozzle density and quenching nozzle
The corresponding relation of number peak amplitude also can be by tabling look-up or existing computing formula is obtained in the prior art.
In addition, obtaining ultrasonic velocity and the quenching nozzle bottom in quenching nozzle density and quenching nozzle in the present embodiment
The method of the corresponding relation of face ultrasonic reflections signal peak amplitude is first to carry out ultrasonic wave to a quenching nozzle test sample
Detection, then cylindrical test block is intercepted in the quenching nozzle test sample, using assay balance and Archimedes's drainage principle
The density of test block is measured, it is of course also possible to use other method measures the density of the test block, the density of the test block is regarded as
The density of quenching nozzle test sample.Ultrasound examination can also first be carried out to a quenching nozzle test sample, then directly
Density measure is carried out to whole test sample, or for being regarded as multiple quenching nozzle test samples of equal densities,
Selection carries out ultrasound examination to a portion sample, and density measure is carried out to another part sample, by repeatedly measurement
Average method, the ultrasonic velocity and quenching nozzle lower surface ultrasonic reflections letter set up in quenching nozzle density and quenching nozzle
The relation storehouse of number peak amplitude corresponding relation.
Ultrasonic velocity and quenching nozzle lower surface in quenching nozzle density and quenching nozzle based on above-mentioned acquisition is super
The relation storehouse of sound wave reflected signal peak value amplitude corresponding relation, the density lossless detection method of high-tension switch gear quenching nozzle
Specifically include following steps：
Step 1, ultrasonic pulse is launched to quenching nozzle to be measured；
Step 2, detects the ultrasonic velocity in quenching nozzle to be measured and obtains quenching nozzle bottom surface ultrasonic wave to be measured
The peak amplitude of reflected signal；
Step 3, the peak amplitude of ultrasonic velocity and reflected signal is compared with relation storehouse, and then obtains to be measured going out
The density of arc spout.
By repeated detection method is averaged in order to improve the accuracy of measurement, in step 2 to obtain in quenching nozzle to be measured
Interior ultrasonic velocity and the peak amplitude of quenching nozzle bottom surface ultrasonic reflections signal to be measured, and measurement should every time
From the different measurement points on quenching nozzle.
The embodiment of density the cannot-harm-detection device of high-tension switch gear quenching nozzle：Including
Unit for launching quenching nozzle to be measured ultrasonic pulse；
For detecting the ultrasonic velocity in the quenching nozzle to be measured and obtaining quenching nozzle bottom surface ultrasound to be measured
The unit of the peak amplitude of wave reflection signal；
For the peak amplitude of the ultrasonic velocity and reflected signal to be compared with relation storehouse, and then obtain described
The unit of the density of quenching nozzle to be measured；The relation storehouse is carried out by the quenching nozzle test sample different to various density
Ultrasonic velocity and quenching nozzle bottom surface ultrasonic wave in the quenching nozzle density that ultrasonic test is obtained and quenching nozzle is anti-
Penetrate the corresponding relation of the peak amplitude of signal.
Density the cannot-harm-detection device of high-tension switch gear quenching nozzle in the present invention, is actually based on above-mentioned height
A kind of computer solution of the density lossless detection method of voltage switching station quenching nozzle, i.e., a kind of software architecture should
Software can be run in arc extinguishing spray Density Detection equipment.Because the sufficiently clear of the introduction to the above method is complete, therefore not
It is described in detail again.
Claims (8)
1. a kind of density lossless detection method of high-tension switch gear quenching nozzle, it is characterised in that comprise the following steps：
Step 1, ultrasonic pulse is launched to quenching nozzle to be measured；
Step 2, detects the ultrasonic velocity in the quenching nozzle to be measured and obtains quenching nozzle bottom surface ultrasonic wave to be measured
The peak amplitude of reflected signal；
Step 3, the peak amplitude of the ultrasonic velocity and reflected signal is compared with relation storehouse, and then is treated described in acquisition
Survey the density of quenching nozzle；The relation storehouse is to carry out ultrasound by the quenching nozzle test sample different to various density
Ultrasonic velocity and quenching nozzle bottom surface ultrasonic reflections signal in the quenching nozzle density that obtains of examination and quenching nozzle
The corresponding relation of peak amplitude.
2. the density lossless detection method of high-tension switch gear quenching nozzle according to claim 1, it is characterised in that
By repeated detection method is averaged in step 2 to obtain the ultrasonic velocity and arc extinguishing to be measured in the quenching nozzle to be measured
The peak amplitude of spout bottom surface ultrasonic reflections signal.
3. the density lossless detection method of high-tension switch gear quenching nozzle according to claim 1 and 2, its feature exists
In including the step of the relation storehouse is obtained in step 3：
(1) the quenching nozzle test sample of different densities standard is obtained；
(2) ultrasonic pulse is launched to the quenching nozzle test sample；
(3) detect the ultrasonic velocity in the quenching nozzle test sample and obtain the quenching nozzle test sample bottom
The peak amplitude of face ultrasonic reflections signal；
(4) density of the quenching nozzle test sample is measured；
(5) ultrasonic velocity and the arc extinguishing spray in density according to the quenching nozzle test sample, quenching nozzle test sample
The peak amplitude of mouth test sample bottom surface ultrasonic reflections signal, sets up quenching nozzle density with ultrasonic velocity in quenching nozzle
The relation storehouse of degree and quenching nozzle bottom surface ultrasonic reflections signal peak amplitude corresponding relation.
4. the density lossless detection method of high-tension switch gear quenching nozzle according to claim 3, it is characterised in that
The density of the quenching nozzle test sample is measured in step (4) using assay balance and Archimedes's drainage principle.
5. a kind of density the cannot-harm-detection device of high-tension switch gear quenching nozzle, it is characterised in that including：
Unit for launching quenching nozzle to be measured ultrasonic pulse；
For detecting the ultrasonic velocity in the quenching nozzle to be measured and to obtain quenching nozzle bottom surface ultrasonic wave to be measured anti-
Penetrate the unit of the peak amplitude of signal；
For the peak amplitude of the ultrasonic velocity and reflected signal to be compared with relation storehouse, and then obtain described to be measured
The unit of the density of quenching nozzle；The relation storehouse is to carry out ultrasound by the quenching nozzle test sample different to various density
Ultrasonic velocity and quenching nozzle bottom surface ultrasonic reflections letter in quenching nozzle density and quenching nozzle that ripple test is obtained
Number peak amplitude corresponding relation.
6. density the cannot-harm-detection device of high-tension switch gear quenching nozzle according to claim 5, it is characterised in that
Method is averaged by repeated detection to obtain under ultrasonic velocity and quenching nozzle to be measured in the quenching nozzle to be measured
The peak amplitude of bottom surface ultrasonic reflections signal.
7. density the cannot-harm-detection device of the high-tension switch gear quenching nozzle according to claim 5 or 6, its feature exists
In the device for obtaining the relation storehouse includes：
Unit for obtaining the quenching nozzle test sample of different densities standard；
Unit for launching the quenching nozzle test sample ultrasonic pulse；
For detecting the ultrasonic velocity in the quenching nozzle test sample and obtaining under the quenching nozzle test sample
The unit of the peak amplitude of bottom surface ultrasonic reflections signal；
Unit for measuring the density of the quenching nozzle test sample；
For the spray of the density according to the quenching nozzle test sample, the ultrasonic velocity in quenching nozzle test sample and arc extinguishing
The peak amplitude of mouth test sample bottom surface ultrasonic reflections signal, sets up quenching nozzle density with ultrasonic velocity in quenching nozzle
The unit in the relation storehouse of degree and quenching nozzle bottom surface ultrasonic reflections signal peak amplitude corresponding relation.
8. density the cannot-harm-detection device of high-tension switch gear quenching nozzle according to claim 7, it is characterised in that
Unit for measuring the density of the quenching nozzle test sample is measured using assay balance and Archimedes's drainage principle
The density of the quenching nozzle test sample.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109975408A (en) * | 2019-04-04 | 2019-07-05 | 北京卫星制造厂有限公司 | Lossless detection method based on the laminated heat insulation material of recoverable airship |
| CN113238587A (en) * | 2021-04-30 | 2021-08-10 | 上海材料研究所 | Liquid level control device and method for water immersion ultrasonic detection water tank |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040031322A1 (en) * | 2002-05-06 | 2004-02-19 | Battelle Memorial Institute | System and technique for characterizing fluids using ultrasonic diffraction grating spectroscopy |
| JP2007120946A (en) * | 2005-10-24 | 2007-05-17 | National Institute Of Advanced Industrial & Technology | Method for measuring physical property value of solid material surface layer part |
| CN101169363A (en) * | 2007-09-27 | 2008-04-30 | 上海理工大学 | Granule graininess, concentration and density measuring method and device |
| CN101413926A (en) * | 2007-10-15 | 2009-04-22 | 航天材料及工艺研究所 | A kind of sound, supersonic damage-free detection method |
| CN101451944A (en) * | 2008-12-25 | 2009-06-10 | 大连理工大学 | Coating density ultrasonic measurement method based on pressure reflection coefficient phase spectrum |
| CN101936863A (en) * | 2010-02-11 | 2011-01-05 | 国家粮食局科学研究院 | Device and method for detecting grain pile density by using mechanical wave propagation process in grain pile |
| CN102692362A (en) * | 2012-06-21 | 2012-09-26 | 上海理工大学 | Ultrasonic imaging detection method for density distribution of high molecular polymer material |
| CN105486588A (en) * | 2015-11-20 | 2016-04-13 | 平高集团有限公司 | Nondestructive testing method and apparatus for pressure endurance capability of basin-type insulator |
| CN105675730A (en) * | 2016-03-16 | 2016-06-15 | 平高集团有限公司 | Ultrasonic detection equipment special for quenching nozzle and quenching nozzle detection method |
-
2016
- 2016-11-23 CN CN201611047493.XA patent/CN106769651A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040031322A1 (en) * | 2002-05-06 | 2004-02-19 | Battelle Memorial Institute | System and technique for characterizing fluids using ultrasonic diffraction grating spectroscopy |
| JP2007120946A (en) * | 2005-10-24 | 2007-05-17 | National Institute Of Advanced Industrial & Technology | Method for measuring physical property value of solid material surface layer part |
| CN101169363A (en) * | 2007-09-27 | 2008-04-30 | 上海理工大学 | Granule graininess, concentration and density measuring method and device |
| CN101413926A (en) * | 2007-10-15 | 2009-04-22 | 航天材料及工艺研究所 | A kind of sound, supersonic damage-free detection method |
| CN101451944A (en) * | 2008-12-25 | 2009-06-10 | 大连理工大学 | Coating density ultrasonic measurement method based on pressure reflection coefficient phase spectrum |
| CN101936863A (en) * | 2010-02-11 | 2011-01-05 | 国家粮食局科学研究院 | Device and method for detecting grain pile density by using mechanical wave propagation process in grain pile |
| CN102692362A (en) * | 2012-06-21 | 2012-09-26 | 上海理工大学 | Ultrasonic imaging detection method for density distribution of high molecular polymer material |
| CN105486588A (en) * | 2015-11-20 | 2016-04-13 | 平高集团有限公司 | Nondestructive testing method and apparatus for pressure endurance capability of basin-type insulator |
| CN105675730A (en) * | 2016-03-16 | 2016-06-15 | 平高集团有限公司 | Ultrasonic detection equipment special for quenching nozzle and quenching nozzle detection method |
Non-Patent Citations (3)
| Title |
|---|
| 姚明林 等: "基于FPGA的超声波液体密度传感器", 《传感器与仪器仪表》 * |
| 李继承: "层状介质特性超声表征的原理及实验研究", 《万方数据》 * |
| 赵扬 等: "基于超声波声压反射系数相位谱测定热障涂层密度的方法研究", 《稀有金属材料与工程》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109975408A (en) * | 2019-04-04 | 2019-07-05 | 北京卫星制造厂有限公司 | Lossless detection method based on the laminated heat insulation material of recoverable airship |
| CN109975408B (en) * | 2019-04-04 | 2021-07-13 | 北京卫星制造厂有限公司 | Nondestructive testing method based on laminated heatproof material of return airship |
| CN113238587A (en) * | 2021-04-30 | 2021-08-10 | 上海材料研究所 | Liquid level control device and method for water immersion ultrasonic detection water tank |
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