CN205483246U - A equipment for supersound high temperature detection sound velocity calibration - Google Patents
A equipment for supersound high temperature detection sound velocity calibration Download PDFInfo
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- CN205483246U CN205483246U CN201620117545.5U CN201620117545U CN205483246U CN 205483246 U CN205483246 U CN 205483246U CN 201620117545 U CN201620117545 U CN 201620117545U CN 205483246 U CN205483246 U CN 205483246U
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Abstract
The utility model discloses an equipment for supersound high temperature detection sound velocity calibration. This equipment includes: the mount pad, the temperature monitoring device, test block and electromagnetic acoustic sensor, the mount pad is formed with the installation cavity, the test block is located the installation cavity, conducting strip and testing object contact are passed through in the test block, and carry out the heat transfer through the conducting strip between test block and the testing object, electromagnetic acoustic sensor settings is in the installation cavity, when the test block of monitoring at the temperature monitoring device and the difference in temperature between testing object are less than the default, utilize the electromagnetic acoustic sensor to detect supersound wave propagation speed in the test block, wherein, testing object's temperature value is at the default temperature within range. The utility model provides an use the ultrasonic wave to examine time measuring, the lower technical problem of its degree of accuracy to high temperature equipment in the correlation technique.
Description
Technical field
This utility model relates to Ultrasonic Nondestructive field, in particular to one for supersonic high temperature detection sound
The equipment of speed calibration.
Background technology
The equipment of industrial product such as numerous oil, chemical industry works under the high temperature conditions, this kind equipment often need to contact inflammable,
Medium explosive, corrosive, is easily generated defect, causes disaster, therefore realizes high temperature in-service equipment matter accurately and reliably
Amount inspection, it is ensured that this kind equipment safe and reliable, tool is of great significance.
At present, conventional ultrasonic non-destructive inspection techniques carries out the detection of the in-service equipment of high temperature.But, due to variations in temperature
Ultrasonic spread speed in examined workpiece, and then the reliability of impact detection can be affected, particularly carrying out ultrasonic survey
Accuracy of detection can be had a strong impact on time thick, workpiece ultrasonic velocity at normal temperatures therefore can not be utilized when high temperature detects
Detect, need first workpiece velocity of ultrasonic sound at high temperature to be calibrated.
Conventional ultrasound detection is to use reference block to calibrate, but utilizes reference block to enter when high temperature detects
There is inconvenience in row sound velocity calibration, as reference block is inconvenient to carry, need to be heated to tested when calibration temporarily
Temperature, needs that workpiece is identical individually heat and cooling, reference block easily abrasion etc., and these operations are difficult at the scene
Realize.Present stage is applied to the instrument and equipment of high temperature detection, is the most all the experience utilizing acoustic velocity of material to vary with temperature
Formula compensates calculating to velocity of ultrasonic sound, utilizes the velocity of sound after calculating to carry out high temperature detection, and this mode needs
Know the material velocity of sound at normal temperatures, for the material calculated and the bad guarantee of concordance of examined workpiece material so that this
There is certain error in the velocity of sound and real velocity of sound that the mode of kind determines, affects the precision of ultrasound detection.
When high-temperature service being detected for correlation technique uses ultrasound wave, the technical problem that its accuracy is relatively low,
At present effective solution is not yet proposed.
Utility model content
This utility model embodiment provides a kind of equipment for supersonic high temperature detection sound velocity calibration, at least to solve phase
When pass technology using ultrasound wave high-temperature service is detected, the technical problem that its accuracy is relatively low.
An aspect according to this utility model embodiment, it is provided that a kind of setting for supersonic high temperature detection sound velocity calibration
Standby, this equipment includes mounting seat, test block and electromagnetic ultrasonic transducer, and mounting seat is formed with installation cavity, and test block is positioned at
In installation cavity, test block and detection heat transfer between object contact, and test block and detection object, electromagnetic ultrasonic transducer sets
Put in installation cavity, when the temperature difference between test block and detection object is less than preset value, electromagnetic ultrasonic transducer detection test block
The spread speed of middle ultrasound wave, wherein, the temperature value of detection object is in preset temperature range.
Further, this equipment also includes device for detecting temperature, and device for detecting temperature is for monitoring test block and detection respectively
The temperature of object.
Further, this equipment also includes display device, and display device is connected with device for detecting temperature, and display device is used
In display test block and the temperature of detection object, or show the temperature difference of test block and detection object.
Further, device for detecting temperature includes the first thermocouple and the second thermocouple, the first thermocouple and the second thermoelectricity
Occasionally being installed in mounting seat, the test side of the first thermocouple contacts with test block, the test side of the second thermocouple and detection
Object contact, the signal output part of the first thermocouple and the signal output part of the second thermocouple are all connected with display device.
Further, this equipment also includes conducting strip, muff and heat shield, and muff is set in test block, peace
First end of dress seat has installing hole, and conducting strip is arranged in installing hole, the first side of conducting strip and the first end of test block
Contact, the second side of conducting strip and detection object contact, the first side of heat shield and the second end in contact of test block, heat insulation
Second side of sheet is towards electromagnetic ultrasonic transducer, and wherein, test block carries out heat transfer by conducting strip with detection object.
Further, this equipment also includes operating device, and operation device is connected with electromagnetic ultrasonic transducer, operates device
For promoting electromagnetic ultrasonic transducer to move along the axial direction of mounting seat.
Further, the second end of mounting seat offers the through hole connected with installation cavity, operation device include protecting sleeve,
Action bars, spring and limiting section, limiting section is arranged on action bars, and the first end of protection sleeve is fixedly connected on peace
On second end of dress seat, spring housing is located on action bars, and the first end of spring offsets with mounting seat, the second of spring
End offsets with limiting section, and action bars sequentially passes through protection sleeve and through hole, the first end of action bars and electromagnetism slidably
Sonac is fixing to be connected.
Further, the second end of protection sleeve and the second end of action bars are provided with rubber jar.
Further, this equipment also includes displacement detector, and displacement detector is arranged in installation cavity, and fills with display
Putting connection, displacement detector is for detecting test block in the length along the axial direction of mounting seat.
Further, during electromagnetic ultrasonic transducer includes electromagnetic acoustic Longitudinalwave sensor and electromagnetic acoustic transverse wave sensor
One of, preset temperature range is 50 degrees Celsius to 750 degrees Celsius.
In this utility model embodiment, for supersonic high temperature detection sound velocity calibration equipment include mounting seat, test block with
And electromagnetic ultrasonic transducer, mounting seat is formed with installation cavity, and test block is positioned at installation cavity, test block and detection object contact,
And heat transfer between test block and detection object, electromagnetic ultrasonic transducer is arranged in installation cavity, at test block and detection object
Between the temperature difference less than preset value time, the spread speed of ultrasound wave in electromagnetic ultrasonic transducer detection test block, owing to temperature becomes
Change can affect ultrasonic spread speed in detection object, therefore can be in test block and detection object (i.e. high-temperature service)
Temperature suitable time, utilize the spread speed of test block the spread speed of detection object to be corrected, after correction
Ultrasonic propagation velocity equipment is detected, thus solve in correlation technique use ultrasound wave high-temperature service is entered
During row detection, the technical problem that its accuracy is relatively low, it is achieved that the technique effect to the accurately detection of detection object, with
Time, by test block together with sensor integration, improve integrated level, beneficially the carrying and using of staff, and
By test block installation in installation cavity, the abrasion of test block can be avoided, it is ensured that the accuracy of test result.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by of the present utility model, constitutes the part of the application,
Schematic description and description of the present utility model is used for explaining this utility model, is not intended that of the present utility model
Improper restriction.In the accompanying drawings:
Fig. 1 be according to this utility model embodiment a kind of optionally with in supersonic high temperature detection sound velocity calibration equipment
Schematic diagram；
Fig. 2 is that the another kind according to this utility model embodiment is optionally with in the equipment of supersonic high temperature detection sound velocity calibration
Schematic diagram；And
Fig. 3 be according to this utility model embodiment the third optionally with in supersonic high temperature detection sound velocity calibration equipment
Schematic diagram.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that this utility model scheme, real below in conjunction with this utility model
Execute the accompanying drawing in example, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that institute
The embodiment described is only the embodiment of this utility model part rather than whole embodiments.Based on this practicality
Embodiment in novel, those of ordinary skill in the art obtained under not making creative work premise all its
His embodiment, all should belong to the scope of this utility model protection.
It should be noted that term " first " in specification and claims of the present utility model and above-mentioned accompanying drawing,
" second " etc. are for distinguishing similar object, without being used for describing specific order or precedence.Should manage
Solve the data so used can exchange in the appropriate case.Additionally, term " includes " and " having " and they
Any deformation, it is intended that cover non-exclusive comprising, such as, contain a series of electronic component or electrical equipment
System, product or equipment be not necessarily limited to those electronic components or the electrical equipment clearly listed, but can include not
Have that clearly list or for the intrinsic other electron component of these systems, product or equipment or electrical equipment.
According to this utility model embodiment, it is provided that the embodiment of a kind of equipment for supersonic high temperature detection sound velocity calibration,
Fig. 1 is a kind of signal optionally with the equipment in supersonic high temperature detection sound velocity calibration according to this utility model embodiment
Figure, as it is shown in figure 1, this equipment includes mounting seat 10, test block 20 and electromagnetic ultrasonic transducer 30, mounting seat 10
Being formed with installation cavity 11, test block is positioned at installation cavity, test block 20 and detection object contact, and test block and detection object
Between heat transfer, electromagnetic ultrasonic transducer is arranged in installation cavity, test block and detection object between the temperature difference less than preset
During value, the spread speed of ultrasound wave in electromagnetic ultrasonic transducer detection test block, wherein, the temperature value of detection object is in advance
If in temperature range.
By above-described embodiment, calibrator (-ter) unit includes mounting seat, test block and electromagnetic ultrasonic transducer, test block is arranged
In installation cavity, test block and detection heat transfer between object contact, and test block and detection object, electromagnetic ultrasonic transducer sets
Put in installation cavity, when the temperature difference between test block and detection object is less than preset value, electromagnetic ultrasonic transducer detection test block
The spread speed of middle ultrasound wave is owing to variations in temperature can affect ultrasonic spread speed in detection object, the most permissible
When test block is suitable with the temperature of detection object (such as high-temperature service), the spread speed of test block is utilized to come detection object
Spread speed be corrected, by the ultrasonic propagation velocity after correction, equipment is detected, thus solves phase
When pass technology using ultrasound wave high-temperature service is detected, the technical problem that its accuracy is relatively low, it is achieved that to inspection
Survey the technique effect of the accurately detection of object, meanwhile, by test block together with sensor integration, improve sensor
The carrying and using of integrated level, beneficially staff, and by test block installation in installation cavity, test block can be avoided
Abrasion, it is ensured that the accuracy of test result.
The calibrator (-ter) unit of the application is mainly used in measuring the ultrasonic velocity of high temp objects, ultrasonic by high temp objects
Wave velocity is demarcated, such that it is able to be used for calibrating, as needed destination object (such as the shell of high-temperature service)
When thickness detects, calibrator (-ter) unit can be contacted with the shell of high-temperature service, utilize high-temperature service that test block is carried out
Heating, when the temperature difference of the two is less than preset value (such as 2 degrees Celsius), obtains ultrasonic in test block under this temperature conditions
The spread speed of ripple, specifically may include that the first measures the thickness of test block, and measures and send ultrasound wave and receive
Time difference between the ultrasound wave of reflection, calculates the transmission speed of test block according to test block thickness and time difference；Its two be adjust
The transmission speed of whole ultrasound wave, and measure the time difference sending ultrasound wave and receiving between reflectance ultrasound ripple, thus root
Test block thickness is determined, if the test block thickness recorded is identical with actual test block thickness according to transmission speed and time difference, it is determined that
The corresponding actual transmission speed that ultrasonic transmission speed is test block.After having obtained the ultrasonic transmission speed of test block,
By ultrasonic sensor and the ultrasonic velocity recorded, high-temperature service can be detected, as measure send ultrasonic
Ripple and the time difference received between reflectance ultrasound ripple, determine the thickness of high-temperature service by time difference and ultrasonic velocity.
If it should be noted that test block and destination object are of the same race or similar material, then the ultrasound wave that can directly will record
Transmission speed, as the transmission speed of destination object, if test block and destination object are not of the same race or similar material, the most also needs
According to the relation between bi-material, the transmission speed recorded changed, to obtain the actual ultrasound wave of destination object
Output speed, above-mentioned preset temperature range can be 300 degrees Celsius to 750 degrees Celsius.
Alternatively, above-mentioned mounting seat overall appearance is cylindrical, can be made up of stainless steel material, during mounting seat is
Empty column, installation cavity can arrange the gathering sill along mounting seat axial direction, electromagnetic ultrasonic transducer by leading
It is arranged in the gathering sill of installation cavity to rib, so that electromagnetic ultrasonic transducer can slide along gathering sill, gathering sill concrete
Quantity can determine according to the quantity of guiding rib, if any 3 guiding ribs, then needs 3 gathering sills.Mounting seat includes
Housing, shell upper end cover, housing upper section, housing lower section, shell bottom end cover, be provided with inside housing upper end with on shell
The female thread that the external screw thread of end cap coordinates.
In the above-described embodiments, in order to carry out monitoring accurately in real time to the temperature of test block and detection object, the application's
Equipment for supersonic high temperature detection sound velocity calibration can also include device for detecting temperature, and device for detecting temperature is for respectively
Monitoring test block and the temperature of detection object.Below in conjunction with Fig. 2 in detail embodiment of the present utility model is described in detail:
As in figure 2 it is shown, device for detecting temperature includes the first thermocouple 41 and the second thermocouple 42, the first thermocouple with
Second thermocouple is installed in mounting seat, and the test side of the first thermocouple contacts with test block, the detection of the second thermocouple
End and detection object contact, the signal output part of the first thermocouple and the signal output part of the second thermocouple all fill with display
Put connection.Thermocouple can be K-type armoured thermocouple, can offer two installing holes at shell upper end cover, in order to divide
Not An Zhuan above-mentioned two thermocouple, by the installing hole of shell upper end cover, thermocouple can go directly enclosure correspondence install
Kong Zhong, the first thermocouple stretches to test block upper surface, and the temperature of monitoring test block, the second thermocouple is through to shell lower end
Bottom lid, monitor the temperature of material to be checked.
By above-described embodiment, directly can work as thermal source with measured material, heat, make electromagnetic acoustic high temperature detect
The faster and more convenient operation of calibration process, when calibration, temperature difference monitoring device monitoring test block temperature and tested material
Temperature, carries out sound velocity calibration, it is ensured that the reliability of calibration after two temperatures is consistent again, meanwhile, by reference block and
Electromagnetic ultrasonic transducer is packaged as a whole, it is simple to carry.
Alternatively, operate for the ease of operator, need display comparison test block timely and the temperature of detection object, because of
This, the equipment for supersonic high temperature detection sound velocity calibration can also include that display device, display device fill with temperature monitoring
Putting connection, display device is for showing test block and the temperature of detection object, or shows the temperature difference of test block and detection object.
In an optional embodiment, as in figure 2 it is shown, the equipment for supersonic high temperature detection sound velocity calibration is all right
Including conducting strip 51, muff 52 and heat shield 53, muff is set in test block 20, the of mounting seat 10
One end has installing hole, and conducting strip is arranged in installing hole, the first side of conducting strip and the first end in contact of test block, leads
Second side of backing and detection object contact, the first side of heat shield and the second end in contact of test block, the second of heat shield
Side is towards electromagnetic ultrasonic transducer 30, and wherein, test block carries out heat transfer by conducting strip with detection object.
Above-mentioned conducting strip (i.e. heat transfer layer), is made of a highly heat conductive material, and such as aluminium oxide ceramics etc., heat transfer layer is by size
Two shaft parts compositions, big one end (the biggest shaft part) is arranged in muff and is positioned at bottom test block, and little one end is (i.e.
Little shaft part) it is installed in the installing hole of bottom end cover, the big I of heat transfer layer determines according to practical situation, as straight in big shaft part
Footpath is 55mm, a height of 1mm, and little shaft section diameter is 51mm, a height of 2.5mm.
It should be noted that the countersunk head spiral shell of 4 a diameter of 1.6mm can be offered on the circumferencial direction of shell bottom end cover
Nail, is used for fixing shell bottom end cover.
Above-mentioned muff is made up of heat preserving and insulating material, and such as zirconia ceramics etc., muff is the cylinder of hollow,
Being made up of jacket wall and the flange for installing location, the inwall of installation cavity is provided with for installing heat shield and muff
Shoulder hole, muff is arranged on shoulder hole by flange, and the flange of muff is positioned at shell bottom end cover and housing lower section
Between, bottom end cover, muff flange and lower housing section are equipped with connecting hole, and screw can be each passed through the connection of three parts
Three parts are connected as an entirety by hole, and to play fixation, the big I of muff and muff flange is according to reality
Border situation determines, as the internal diameter of muff be 55mm, external diameter be 59mm, height for 3mm, flange outside diameter be 67mm,
Internal diameter is 55mm, thickness is 3mm, and above-mentioned connecting hole can be the screw clearance holes of a diameter of 1.7mm.
One end of above-mentioned heat shield is provided with the flange for installing, and heat shield includes the sidewall of the heat insulation end and flange connector,
Heat shield is installed on muff top, and heat shield is arranged on the shoulder hole of installation cavity inwall by flange.Heat shield
The design parameter of each ingredient can determine as required, as flange outside diameter be 59mm, internal diameter be 33mm, thickness
For 1mm, a diameter of 35mm in the heat insulation end, thickness are 1mm.
By above-described embodiment, directly can work as thermal source with measured material, heat, make electromagnetic acoustic high temperature detect
The faster and more convenient operation of calibration process, in a calibration process, entered by the heat transfer layer being made of a highly heat conductive material
Test block is heated in row heat transfer, it is possible to is prevented effectively from test block and directly contacts with examined workpiece equipment, it is to avoid test block is worn,
It is arranged around heat insulation layer in built-in test block, it is possible to ensure that test block is rapidly heated, the most effectively stops heat quick
It is delivered to sensor rear end, improves processing safety during sensor detection.
In another optional embodiment, the equipment for supersonic high temperature detection sound velocity calibration can also include operation dress
Putting, operation device is connected with electromagnetic ultrasonic transducer, and operation device is for promoting electromagnetic ultrasonic transducer along mounting seat
Axial direction moves.
It is concrete, as in figure 2 it is shown, operation device includes protecting sleeve 61, action bars 62, spring 63 and spacing
Portion 64, limiting section is arranged on action bars, and the first end of protection sleeve is fixedly connected on the second end of mounting seat, bullet
Spring is set on action bars, and the first end of spring offsets with mounting seat, and the second end of spring offsets with limiting section, peace
Second end of dress seat offers the through hole connected with installation cavity, and action bars sequentially passes through protection sleeve and through hole slidably,
First end of action bars is fixing with electromagnetic ultrasonic transducer to be connected.
Above-mentioned protection sleeve is made up of stainless steel material, and for the column straight tube of hollow, its design parameter can be as required
Determine, as external diameter be 44mm, internal diameter be 40mm, a length of 300mm.
Above-mentioned spring is made up of stainless steel material, and its design parameter can determine as required, if free height is 60mm,
Spring filament diameter is 3mm, and number of active coils 8 encloses, and supports the number of turns 2 and encloses, mean diameter of coil 31.5mm.
Alternatively, limiting section can be snap ring, and snap ring is used for preventing spring from departing from from action bars.
By above-described embodiment, reference block is built in sensor internal, is convenient for carrying, around built-in test block and
Upper end arranges heat insulation layer, can guarantee that test block is heated rapidly, and calibration sensor uses push-pull structure, in test block
After reaching assigned temperature, promote electromagnetic ultrasonic transducer close to test block, carry out sound velocity calibration, again by electricity after having calibrated
Magnetic sonac is drawn away from test block, electromagnetic ultrasonic transducer so can be protected not by high temperature failure, make electricity simultaneously
Magnetic supersonic high temperature testing calibration process operation is easier, sound velocity calibration is more accurate.
Alternatively, in order to prevent scalding operator when operation, can be at protection the second end of sleeve and action bars
Second end arranges rubber jar.The rubber jar 611 protecting sleeve 61 as shown in Figure 3, the rubber jar 621 of action bars 62.
In the related, use the mode adjusting the velocity of sound to measure high temperature test block, but the most all have ignored material
Thermal expansion influence, it is assumed that the thickness of high temperature test block does not change and calibrates the velocity of sound, the velocity of sound that this mode determines and
There is certain error in real velocity of sound, affects the precision of ultrasound detection, in order to solve this problem, the application for ultrasonic
The equipment of high temperature detection sound velocity calibration can also include displacement detector, and displacement detector is arranged in installation cavity, and with
Display device connects, and displacement detector is for detecting test block in length (the i.e. test block along the axial direction of mounting seat
Thickness).So, operator get final product the real-time monitored change to test block thickness, and determine examination according to its actual (real) thickness
The ultrasonic propagation velocity of sound of block.
Alternatively, it during electromagnetic ultrasonic transducer includes electromagnetic acoustic Longitudinalwave sensor and electromagnetic acoustic transverse wave sensor
One.
As, when electromagnetic ultrasonic transducer is electromagnetic acoustic transverse wave sensor, sensor includes encapsulating shell housing, encapsulation
Shell upper end cover, thermal resistance piece, Magnet, high frequency coil, electro-magnetic screen layer, magnet coil mounting seat, Signal connector, letter
Number joint mounting seat, wherein, thermal resistance piece is arranged on bottom encapsulating shell.
Specifically, encapsulating shell housing is the column of hollow, is made up of stainless steel material, and internal diameter is 36mm, external diameter
Being 46mm for 40mm, whole height, encapsulating shell housing periphery is provided with equally distributed 3 guiding ribs vertically,
Rib height 11.5mm, thick 4mm, long 20mm, housing bottom is provided with axial step through hole, bottom-up is respectively the
One, the second sector hole, wherein the first sector hole aperture be 29mm, a height of 1mm, the second sector hole aperture is 32mm, height
For 1mm, housing upper end is provided with the external screw thread of M38, is used for connecting encapsulating shell upper end cover.
Thermal resistance piece is made up of high temperature resistant heat insulation material zirconium oxide, which is provided with the flange of location and installation, and thermal resistance piece is overall
Being highly 2mm, at the bottom of thermal resistance, a diameter of 29mm, thickness are 1mm, flange inner diameter is 27mm, external diameter is 32mm,
Thickness is 1mm, and thermal resistance piece is positioned in the first sector hole bottom encapsulating housing and the second sector hole.
Magnet is made up of NdFeB material, and for cylinder, a diameter of 30mm, overall a height of 40mm, its one end is overlapped
Being provided with an electro-magnetic screen layer, electro-magnetic screen layer is made up of conductor material.
High frequency coil includes coil, lead-in wire, joint, is made up of high-temperature-resistant flexible PCB material, and coil is circular,
A diameter of 24mm.
Magnet coil mounting seat is ladder shaft-like, is divided into size two shaft part, and big shaft section diameter is 35mm, a height of 3mm,
Little shaft section diameter is 27mm, a height of 1mm.One end of big shaft part offers the hole installing Magnet, aperture be 30mm,
Deep 2mm.One end of little shaft part offers the hole installing high frequency coil, and aperture is 24mm, deeply for 0.3mm.Magnet
The little shaft part of coil mounting seat is positioned in thermal resistance piece, and big shaft part is positioned at encapsulating housing.
Signal connector mounting seat is made up of polyimides, the most cylindric, a diameter of 34mm, a height of 8mm.One
End is provided with the hole for installing Magnet, and aperture is 30mm, deeply for 2mm.Which is provided with for installing Signal connector
Position, multiple hole.Signal connector can use the LEMO EZG type 0B straight plug of series or the joint of other models.
Encapsulating shell upper end cover is made up of stainless steel material, overall in ladder shaft-like, and big shaft section diameter is 40mm, highly
For 15mm, little shaft section diameter is 21mm, height is 12.5mm.It is internally provided with the shoulder hole of connection, from lower
On, it is followed successively by the first sector hole, the second sector hole, the 3rd sector hole.First sector hole aperture is 36mm, the degree of depth is 13mm,
Second sector hole aperture is 15mm, the degree of depth is 8mm, and the 3rd sector hole aperture is 9.5mm, the degree of depth is 6.5mm.Signal
Joint mounting seat is positioned in the first sector hole, and Signal connector 16 is positioned in the second sector hole, the 3rd sector hole.In the first sector hole
It is additionally provided with the female thread of M38, is used for connecting encapsulating shell housing.Little shaft part periphery is provided with the external screw thread of M20, is used for
Connect stick 12.
This utility model is more convenient, quick, accurate for the sound velocity calibration realizing the detection of electromagnetic acoustic high temperature, it is provided that
Electromagnetic ultrasonic transducer and test block are designed and are packaged together by electromagnetic acoustic high temperature testing calibration sensor, are formed and are easy to take
Band and the integral type high temperature testing calibration sensor of operation.In calibration process, calibration sensor is placed in high temperature to be checked and sets
Standby upper, the built-in test block being thermal source heating sensor with tested material, can be by temperature difference monitoring device monitoring calibration sensing
The temperature of the test block within device, treats that the test block temperature temperature difference with equipment, less than preset value (such as 5 degrees Celsius), utilizes electromagnetism
Sonac calibrates electromagnetic acoustic spread speed in the tested equipment of high temperature by the way of adjusting the velocity of sound.In school
On time, take into full account test block linear thermal expansion amount in a thickness direction, by material total under inquiry relevant temperature
Thermal expansion amount, calculates the thickness of test block, carries out sound velocity calibration with the thickness calculated.
In order to improve the accuracy of test, when test block temperature is identical with the temperature of detection object, then can detect；
It addition, test block can use and detect the material that the material of object is same or like, thereby may be ensured that test block material and
The concordance of examined workpiece (i.e. detecting object) material so that the velocity of sound recorded will not exist because of materials variances by mistake
Difference, such that it is able to improve the accuracy of detection.
Above-mentioned this utility model embodiment sequence number, just to describing, does not represent the quality of embodiment.
In above-described embodiment of the present utility model, the description to each embodiment all emphasizes particularly on different fields, in certain embodiment
There is no the part described in detail, may refer to the associated description of other embodiments.
The claimed equipment for supersonic high temperature detection sound velocity calibration of this utility model and constitute each of this equipment
Assembly is all a kind of entity products having and determining shape, construct and occupy certain space.Such as, device for detecting temperature,
Display device, electromagnetic ultrasonic transducer, shifting detector etc. be all can with independent operating, there is particular hardware structure
Unit or electronic device.
The above is only preferred implementation of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of without departing from this utility model principle, it is also possible to make some improvements and modifications, these
Improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (10)
1. the equipment for supersonic high temperature detection sound velocity calibration, it is characterized in that, including mounting seat, test block and electromagnetic ultrasonic transducer, described mounting seat is formed with installation cavity, described test block is positioned at described installation cavity, described test block and detection object contact, and heat transfer between described test block and described detection object, described electromagnetic ultrasonic transducer is arranged in described installation cavity, when the temperature difference between described test block and described detection object is less than preset value, described electromagnetic ultrasonic transducer detects the spread speed of ultrasound wave in described test block, wherein, the temperature value of described detection object is in preset temperature range.
Equipment the most according to claim 1, it is characterised in that described equipment also includes device for detecting temperature, described device for detecting temperature is for monitoring described test block and the temperature of described detection object respectively.
Equipment the most according to claim 2, it is characterized in that, described equipment also includes that display device, described display device are connected with described device for detecting temperature, described display device is for showing described test block and the temperature of described detection object, or shows the temperature difference of described test block and described detection object.
Equipment the most according to claim 3, it is characterized in that, described device for detecting temperature includes the first thermocouple and the second thermocouple, described first thermocouple and described second thermocouple are installed in described mounting seat, the test side of described first thermocouple contacts with described test block, the test side of described second thermocouple and described detection object contact, the signal output part of described first thermocouple and the signal output part of described second thermocouple are all connected with described display device.
Equipment the most as claimed in any of claims 1 to 4, it is characterized in that, described equipment also includes conducting strip, muff and heat shield, described muff is set in described test block, first end of described mounting seat has installing hole, described conducting strip is arranged in installing hole, first side of described conducting strip and the first end in contact of described test block, second side of described conducting strip and described detection object contact, first side of described heat shield and the second end in contact of described test block, second side of described heat shield is towards described electromagnetic ultrasonic transducer, wherein, described test block carries out heat transfer by described conducting strip and described detection object.
Equipment the most according to claim 5, it is characterized in that, described equipment also includes operating device, and described operation device is connected with described electromagnetic ultrasonic transducer, and described operation device is for promoting described electromagnetic ultrasonic transducer to move along the axial direction of described mounting seat.
Equipment the most according to claim 6, it is characterized in that, second end of described mounting seat offers the through hole connected with described installation cavity, described operation device includes protecting sleeve, action bars, spring and limiting section, described limiting section is arranged on described action bars, first end of described protection sleeve is fixedly connected on the second end of described mounting seat, described spring housing is located on described action bars, and the first end of described spring offsets with described mounting seat, second end of described spring offsets with described limiting section, described action bars sequentially passes through described protection sleeve and described through hole slidably, first end of described action bars is fixing with described electromagnetic ultrasonic transducer to be connected.
Equipment the most according to claim 7, it is characterised in that the second end of described protection sleeve and the second end of described action bars are provided with rubber jar.
Equipment the most according to claim 6, it is characterized in that, described equipment also includes that displacement detector, described displacement detector are arranged in described installation cavity, and be connected with display device, described displacement detector is for detecting described test block length on the axial direction along described mounting seat.
Equipment the most according to claim 9, it is characterised in that described electromagnetic ultrasonic transducer include in electromagnetic acoustic Longitudinalwave sensor and electromagnetic acoustic transverse wave sensor one of, described preset temperature range is 50 degrees Celsius to 750 degrees Celsius.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620117545.5U CN205483246U (en) | 2016-02-05 | 2016-02-05 | A equipment for supersound high temperature detection sound velocity calibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620117545.5U CN205483246U (en) | 2016-02-05 | 2016-02-05 | A equipment for supersound high temperature detection sound velocity calibration |
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| CN205483246U true CN205483246U (en) | 2016-08-17 |
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| CN201620117545.5U Withdrawn - After Issue CN205483246U (en) | 2016-02-05 | 2016-02-05 | A equipment for supersound high temperature detection sound velocity calibration |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105571708A (en) * | 2016-02-05 | 2016-05-11 | 中国特种设备检测研究院 | Apparatus for ultrasonic high-temperature detection sound speed calibration |
| CN111157135A (en) * | 2020-01-20 | 2020-05-15 | 扬州大学 | Indirect measurement method for surface temperature of quenched part |
-
2016
- 2016-02-05 CN CN201620117545.5U patent/CN205483246U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105571708A (en) * | 2016-02-05 | 2016-05-11 | 中国特种设备检测研究院 | Apparatus for ultrasonic high-temperature detection sound speed calibration |
| CN105571708B (en) * | 2016-02-05 | 2019-05-24 | 中国特种设备检测研究院 | Equipment for supersonic high temperature detection sound velocity calibration |
| CN111157135A (en) * | 2020-01-20 | 2020-05-15 | 扬州大学 | Indirect measurement method for surface temperature of quenched part |
| CN111157135B (en) * | 2020-01-20 | 2021-06-04 | 扬州大学 | Indirect measurement method for surface temperature of quenched part |
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