CN106525276A - Electromagnetic ultrasonic sensor with function of temperature monitoring, and detection system - Google Patents
Electromagnetic ultrasonic sensor with function of temperature monitoring, and detection system Download PDFInfo
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- CN106525276A CN106525276A CN201610932123.8A CN201610932123A CN106525276A CN 106525276 A CN106525276 A CN 106525276A CN 201610932123 A CN201610932123 A CN 201610932123A CN 106525276 A CN106525276 A CN 106525276A
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- 238000001514 detection method Methods 0.000 title claims abstract description 66
- 238000012544 monitoring process Methods 0.000 title claims abstract description 40
- 238000002604 ultrasonography Methods 0.000 claims description 41
- 238000000034 method Methods 0.000 claims description 11
- 239000011241 protective layer Substances 0.000 claims description 9
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 5
- 238000005086 pumping Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 239000010410 layer Substances 0.000 claims 1
- 238000001816 cooling Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 238000011897 real-time detection Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000005426 magnetic field effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000002463 transducing effect Effects 0.000 description 1
- 238000004148 unit process Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/22—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using measurement of acoustic effects
- G01K11/24—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using measurement of acoustic effects of the velocity of propagation of sound
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- Acoustics & Sound (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention provides an electromagnetic ultrasonic sensor with a function of temperature monitoring, and a detection system. The ultrasonic sensor comprises a housing and an ultrasonic detection module disposed in the housing. The ultrasonic sensor also comprises a temperature detection module, and the temperature detection module comprises a first temperature detector and a temperature monitoring unit, wherein the first temperature detector is disposed in the housing. The temperature monitoring unit is electrically connected with the first temperature detector, and is used for receiving a first temperature value detected by the first temperature detector, and comparing the first temperature value with a first preset value. When the first temperature value is greater than the first preset value, the temperature monitoring unit gives an early-warning signal. In addition, the ultrasonic sensor is separated from a tested workpiece, thereby guaranteeing that the temperature of the ultrasonic detection module is kept in a safety temperature range, and guaranteeing the application performance and service life of the ultrasonic sensor.
Description
Technical field
The present invention relates to detection field, in particular to a kind of electromagnetic ultrasonic transducer with temperature-monitoring function
And detecting system.
Background technology
Electromagnetic acoustic is the important means of the in-service on-line checking of high-temperature service, and wherein high-temperature electromagnetic sonac is to realize
High temperature detects most crucial part.High-temperature electromagnetic sonac is divided into active cooling-type and without active cooling by its type of cooling
Formula, active cooling-type sensor need special cooling system, and complex structure, volume are big, main using large quantities of on production line
Amount Aulomatizeted Detect, and need not attach cooling device because of which without active cooling-type sensor, with simple structure, small volume,
The features such as being easy to carry, is widely applied in the detection of engineering high temperature.
Due to no active cooling measure, in order to protect sensor cluster, ensure its effective transducing, in the detection to dereliction
The operating temperature range of dynamic cooling down high-temperature electromagnetic ultrasonic transducer and there are clearly rule with time of contact of tested high temperature workpiece
Fixed and requirement.
Existing electromagnetic ultrasonic transducer is difficult to control time of contact in use, and in most cases testing staff is by rule of thumb
To judge time of contact or using stopwatch come timing, execute-in-place is extremely inconvenient, and human factor make timing judge to exist compared with
Big error, causes sensor internal functional unit extremely easily to damage failure because temperature is too high, the performance of sensor with
Service life cannot be ensured.
The content of the invention
Present invention is primarily targeted at providing a kind of electromagnetic ultrasonic transducer with temperature-monitoring function and detection system
System, to solve the problems, such as that sonac is difficult to control its time of contact with high temperature workpiece when in use in prior art.
To achieve these goals, according to an aspect of the invention, there is provided a kind of electricity with temperature-monitoring function
Magnetic sonac, including shell and be arranged on shell inside ultrasound detection component, ultrasound detection component for it is tested
Workpiece effect produces ultrasonic signal and receives echo-signal.The electromagnetic ultrasonic transducer also includes temperature sensing assembly, temperature
Detection components include the first temperature detector and temperature monitoring unit, and the first temperature detector is arranged on inside the shell, for detecting
The temperature of ultrasound detection component.Temperature monitoring unit is connect with the first temperature detector electrical, for receiving the first temperature detector
The first temperature value for detecting simultaneously is compared with first predetermined value, when the first temperature value is more than first predetermined value, temperature monitoring
Unit sends early warning signal.
Further, electromagnetic ultrasonic transducer also includes ultrasonic detecting unit, ultrasonic detecting unit and ultrasound detection component
Electrical connection, ultrasonic detecting unit are used to send pumping signal and receive and process the ultrasonic wave letter that ultrasound detection component detection is arrived
Number.
Further, temperature sensing assembly also includes second temperature detector, and second temperature detector is arranged on shell
Bottom, for measuring the surface temperature of measured workpiece, temperature monitoring unit respectively with second temperature detector and ultrasound detection list
Unit's electrical connection, temperature monitoring unit are additionally operable to receive the second temperature value that second temperature detector is detected, and feed back to ultrasound
Detector unit, speed of the ultrasonic detecting unit according to second temperature value calibration ultrasonic wave.
Further, electromagnetic ultrasonic transducer also includes Signal connector, one end of Signal connector and ultrasound detection component, the
One temperature detector and second temperature detector are electrically connected, and the other end of Signal connector is by wiring and temperature monitoring unit
It is electrically connected with ultrasonic detecting unit.
Further, ultrasound detection component includes magnet and coil, and magnet is arranged on the inside of shell, and coil is arranged outside
The inside of shell the downside positioned at magnet.
Further, the first temperature detector and magnet and/or coil contact, to detect the temperature of magnet and/or coil.
Further, shell also includes cylinder, mounting seat and fixed seat, and cylinder has upper shed and under shed, mounting seat
It is arranged under shed, magnet is arranged on the upper end of mounting seat, coil is arranged on the lower end of mounting seat, and fixed seat is arranged on out
At mouthful, and it is fixedly connected with the upper end of magnet.
Further, shell also includes end cap, and end cap is arranged on the upper end of fixed seat, for blocking upper shed.
Further, shell also includes wear-resistant protective layer, and wear-resistant protective layer is arranged on the lower end of mounting seat and covers coil,
Wear-resistant protective layer is used to protect coil.
To achieve these goals, according to an aspect of the invention, there is provided a kind of detecting system, including what is be connected
Electromagnetic ultrasonic transducer and ultrasonic instrument, electromagnetic ultrasonic transducer is above-mentioned electromagnetic ultrasonic transducer, electromagnetic ultrasonic transducer
Temperature monitoring unit and ultrasonic detecting unit be arranged on ultrasonic instrument.
Using technical scheme, during use, electromagnetic ultrasonic transducer is placed on measured workpiece, ultrasound detection group
While part produces ultrasonic signal with measured workpiece effect, the temperature of measured workpiece is delivered on ultrasound detection component, makes to surpass
The temperature of sound detection component is gradually increasing.First temperature detector detects the temperature of ultrasound detection component, temperature monitoring unit reality
When receive the temperature of the first temperature detector detection, and which is compared with first predetermined value.When the first temperature for receiving
When value is more than first predetermined value, temperature monitoring unit sends early warning signal, now, electromagnetic ultrasonic transducer is taken off with measured workpiece
Open, so that it is guaranteed that the temperature of ultrasound detection component is maintained in safe temperature range, and then ensure making for electromagnetic ultrasonic transducer
Use performance and used life.
In addition to objects, features and advantages described above, the present invention also has other objects, features and advantages.
Below with reference to accompanying drawings, the present invention is further detailed explanation.
Description of the drawings
The Figure of description for constituting the part of the present invention is used for providing a further understanding of the present invention, and the present invention's shows
Meaning property embodiment and its illustrated for explaining the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 shows the schematic diagram of the embodiment of electromagnetic ultrasonic transducer of the invention；
Fig. 2 shows the cross-sectional schematic of the electromagnetic ultrasonic transducer in Fig. 1；
Fig. 3 shows the structure enlarged diagram at the A in Fig. 2；And
Fig. 4 shows the external structure schematic diagram of the electromagnetic ultrasonic transducer in Fig. 1.
Wherein, above-mentioned accompanying drawing includes that the following drawings is marked：
10th, shell；11st, cylinder；12nd, mounting seat；13rd, fixed seat；14th, end cap；15th, wear-resistant protective layer；20th, ultrasound detection
Component；21st, magnet；22nd, coil；30th, the first temperature detector；40th, temperature monitoring unit；50th, ultrasonic detecting unit；60th,
Two temperature detectors；70th, Signal connector.
Specific embodiment
It should be noted that in the case where not conflicting, the embodiment and the feature in embodiment in the present invention can phase
Mutually combine.Below with reference to the accompanying drawings and in conjunction with the embodiments describing the present invention in detail.
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the embodiment of the present invention
Accompanying drawing, is clearly and completely described to the technical scheme in the embodiment of the present invention, it is clear that described embodiment is only
The embodiment of a part of the invention, rather than the embodiment of whole.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment obtained under the premise of creative work is not made by member, should all belong to the model of present invention protection
Enclose.
It should be noted that description and claims of this specification and the term " first " in above-mentioned accompanying drawing, "
Two " it is etc. for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so using
Term can exchange in the appropriate case, so as to embodiments of the invention described herein.Additionally, term " including " and " tool
Have " and their any deformation, it is intended that cover it is non-exclusive includes, for example, contain series of steps or unit
Process, method, system, product or equipment are not necessarily limited to those steps clearly listed or unit, but may include without clear
Other steps list to Chu or intrinsic for these processes, method, product or equipment or unit.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, which indicates existing characteristics, step, operation, device, component and/or combinations thereof.
Unless specifically stated otherwise, the part for otherwise illustrating in these embodiments and the table positioned opposite, digital of step
Do not limit the scope of the invention up to formula and numerical value.Simultaneously, it should be appreciated that for the ease of description, each portion shown in accompanying drawing
The size divided not is to draw according to actual proportionate relationship.For technology, side known to person of ordinary skill in the relevant
Method and equipment may be not discussed in detail, but in the appropriate case, the technology, method and apparatus should be considered to authorize explanation
A part for book.In all examples of shown here and discussion, any occurrence should be construed as merely exemplary, and
Not by way of limitation.Therefore, the other examples of exemplary embodiment can have different values.It should be noted that：Similar label
Similar terms is represented in following accompanying drawing with letter, therefore, once be defined in a certain Xiang Yi accompanying drawing, then subsequent attached
Which need not be further discussed in figure.
For the ease of description, space relative terms can be used here, such as " ... on ", " ... top ",
" in ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation levied.It should be appreciated that space relative terms are intended to comprising the orientation except device described in figure
Outside different azimuth in use or operation.For example, if the device in accompanying drawing is squeezed, it is described as " in other devices
To be positioned as " under other devices or construction after the device of part or construction top " or " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " can include " ... top " and
" in ... lower section " two kinds of orientation.The device can also other different modes positioning (being rotated by 90 ° or in other orientation), and
And respective explanations are made to the relative description in space used herein above.
In describing the invention, it is to be understood that the noun of locality as " forward and backward, upper and lower, left and right ", " it is laterally, vertical,
Vertically, the orientation or position relationship indicated by level " and " top, bottom " etc. is normally based on orientation shown in the drawings or position and closes
System, is for only for ease of the description present invention and simplifies description, and in the case where contrary explanation is not made, these nouns of locality are not indicated that
There must be specific orientation or with specific azimuth configuration and operation with the device or element of hint indication, therefore can not manage
Solve as limiting the scope of the invention；The noun of locality " inside and outside " is referred to relative to inside and outside each part profile of itself.
Fig. 1 and Fig. 2 respectively illustrate the original of the electromagnetic ultrasonic transducer embodiment with temperature-monitoring function of the present invention
Reason figure and sectional view, the ultrasound detection component 20 that the electromagnetic ultrasonic transducer includes shell 10 with the inside for being arranged on shell 10,
Ultrasound detection component 20 is for producing ultrasonic signal with the effect of measured workpiece 1 and receives echo-signal.The electromagnetic acoustic is sensed
Device also includes temperature sensing assembly, and temperature sensing assembly includes the first temperature detector 30 and temperature monitoring unit 40, wherein, the
One temperature detector 30 is arranged in shell 10, for detecting the temperature of ultrasound detection component 20.Temperature monitoring unit 40 and
One temperature detector 30 is electrically connected, for receiving the first temperature value and the first predetermined value that the first temperature detector 30 is detected
Compare, when the first temperature value is more than first predetermined value, temperature monitoring unit 40 sends early warning signal.
During use, electromagnetic ultrasonic transducer is placed on measured workpiece 1, ultrasound detection component 20 is acted on measured workpiece 1
While producing ultrasonic signal and receive echo-signal, the temperature of measured workpiece 1 is delivered on ultrasound detection component 20, makes to surpass
The temperature of sound detection component 20 is gradually increasing.The temperature of the detection ultrasound detection of the first temperature detector 30 component 20, temperature monitoring
The temperature of the detection of 40 the first temperature detector of real-time reception of unit 30, and which is compared with first predetermined value.When receiving
The first temperature value be more than first predetermined value when, temperature monitoring unit 40 sends early warning signal, now, by electromagnetic ultrasonic transducer
Disengage with measured workpiece 1, so that it is guaranteed that the temperature of ultrasound detection component 20 is maintained in safe temperature range, and then ensure electromagnetism
The performance and service life of sonac.
Optionally, electromagnetic ultrasonic transducer also includes ultrasonic detecting unit 50, ultrasonic detecting unit 50 and ultrasound detection group
Part 20 is electrically connected, and for sending pumping signal, and receives and process the ultrasonic signal that ultrasound detection component 20 is detected.Ultrasound
The pumping signal that detector unit sends is transmitted to ultrasound detection component 20, in the case where ultrasound detection component 20 is acted in measured workpiece 1
Middle generation ultrasonic signal, the ultrasound signal transmission give the ultrasonic detecting unit 50 of the electrical connection of ultrasound detection component 20, surpass
Sound detection unit 50 is processed to detect the quality of measured workpiece 1 by the ultrasonic signal to receiving.Optionally, can be with
Thickness sensitivity and/or Non-Destructive Testing etc. are carried out to measured workpiece 1 by electromagnetic ultrasonic transducer.
In the detection of electromagnetic acoustic high temperature, need according to the material properties and operating temperature of checked object to calibrate ultrasonic sound
Speed, the method commonly used in engineering detecting are the surface temperatures using the device measuring examined workpiece such as infrared radiation thermometer, then manually
Calibration velocity of ultrasonic sound, but as the workpiece surface temperature of the method measurement has larger error, it is impossible to realize the accurate velocity of sound
Calibration, and then there is missing inspection and erroneous judgement during detection can be caused.
Above-mentioned in order to solve the problems, such as, in the present embodiment, temperature sensing assembly also includes second temperature detector 60, the
Two temperature detectors 60 are arranged on the bottom of shell 10, for measuring the surface temperature of measured workpiece 1.As shown in figure 1, temperature prison
Survey unit 40 to electrically connect with second temperature detector 60 and ultrasonic detecting unit 50 respectively, temperature monitoring unit 40 is additionally operable to receive
The second temperature value that second temperature detector 60 is detected, and ultrasonic detecting unit 50 is fed back to, 50 basis of ultrasonic detecting unit
The speed of second temperature value calibration ultrasonic wave.By the surface temperature of real-time detection measured workpiece 1, and according to the temperature for detecting
The speed of real time calibration ultrasonic signal, so as to reduce measure error, it is ensured that the reliability of electromagnetic ultrasonic transducer work.Can
Choosing, second temperature detector 60 is using elasticity installation, it is ensured that can be with 1 good contact of measured workpiece during detection.Such as Fig. 4 institutes
Show, one or more second temperature detectors 60 can be set in sensor base, it is ensured that the temperature for detecting can be more accurately anti-
Reflect the temperature of measured workpiece 1.
Optionally, the first temperature detector 30 and/or second temperature detector 60 are temperature sensor, in the present embodiment,
Using K-type thermocouple, other temperature sensors, such as thermistor, thermometer etc. may also be employed.
Optionally, electromagnetic ultrasonic transducer also includes Signal connector 70, one end and the ultrasound detection component of Signal connector 70
20th, the first temperature detector 30 and second temperature detector 60 are electrically connected, the other end of Signal connector 70 by wiring with
Temperature monitoring unit 40 and ultrasonic detecting unit 50 are electrically connected.Signal connector plays a part of to facilitate grafting.Such as Fig. 2 and Tu
Shown in 3, in the present embodiment, Signal connector has two, wherein, the first temperature detector 30 and second temperature detector 60 are arranged
One common Signal connector, ultrasound detection component 20 are separately provided a Signal connector.Optionally, also the first temperature can be examined
Survey device 30, second temperature detector 60 and ultrasound detection component 20 and be respectively provided with Signal connector, or by the first temperature detector 30,
Second temperature detector 60 and ultrasound detection component 20 are integrated on same Signal connector.
Optionally, ultrasound detection component 20 includes magnet 21 and coil 22.Wherein, magnet 21 is arranged on the interior of shell 10
Portion, for providing stable Constant charge soil.Coil 22 is arranged on the inside of shell 10 and is located at the downside of magnet 21, for producing biasing
Magnetic field, the pumping signal that ultrasonic detecting unit sends are transmitted to coil 22 and under the bias magnetic field effect that magnet 21 is produced in quilt
Survey in workpiece 1 and produce ultrasonic signal.
Optionally, the first temperature detector 30 is contacted with magnet 21 and/or coil 22, to detect magnet 21 and/or coil
22 temperature.Magnet 21 and coil 22 are the important composition parts of electromagnetic ultrasonic transducer, electromagnetic ultrasonic transducer with it is tested
During workpiece 1 is contacted, the temperature of measured workpiece 1 can be delivered on magnet 21 and coil 22, made in the temperature of magnet 21 and coil 22
Rise, thus, the first temperature detector 30 can be set on the relatively low part of safe temperature, and the safe temperature value of this part is set
The first predetermined value being set in temperature monitoring unit 40, when the temperature of the part exceedes first predetermined value, temperature monitoring unit
40 will send early warning signal.Optionally, the first temperature detector 30 also can be all set, with simultaneously on magnet 21 and coil 22
The temperature of detection magnet 21 and coil 22.Optionally, the mounting means of the first temperature detector 30 can adopt bonding mode.
As shown in Fig. 2 in the present embodiment, shell 10 also includes cylinder 11, mounting seat 12 and fixed seat 13.Cylinder 11 has
There are upper shed and under shed, mounting seat 12 is arranged under shed, magnet 21 is arranged on the upper end of mounting seat 12, coil 22 is arranged
In the lower end of mounting seat 12.Fixed seat 13 is arranged at upper shed, and is fixedly connected with the upper end of magnet 21, for fixing magnet
21.As shown in figure 3, in the present embodiment, the upper and lower side of mounting seat 12 offers blind hole, and its upper end blind hole is to install magnet
21, lower end blind hole is to install coil 22.Optionally, it is further opened with for accommodating the recessed of the first temperature detector 30 at blind hole
Groove.
Optionally, shell 10 also includes end cap 14, and end cap 14 is arranged on the upper end of fixed seat 13, for blocking upper shed.
Optionally, end cap 14 can be adopted with cylinder 11 and is threadedly coupled.Optionally, open up at the position of correspondence Signal connector 70 on end cap 14
There is mounting hole site, for exposed portion Signal connector 70.Optionally, prolongation handle can be also set on end cap 14, and end cap sidewall is
Faceted pebble, is easy to screw.
Optionally, shell 10 also includes wear-resistant protective layer 15, and wear-resistant protective layer 15 is arranged on the lower end of mounting seat 12 and covers
Lid coil 22, wear-resistant protective layer 15 are used to protect coil 22.
Fig. 1 also show the principle of the detecting system of the present invention, and the electromagnetic acoustic detecting system includes the electromagnetism being connected
Sonac and ultrasonic instrument, wherein, electromagnetic ultrasonic transducer is above-mentioned electromagnetic ultrasonic transducer, electromagnetic ultrasonic transducer
Temperature monitoring unit 40 and ultrasonic detecting unit 50 be arranged on ultrasonic instrument.Temperature monitoring unit 40 receives the inspection of the first temperature
The temperature that device 30 and second temperature detector 60 are detected is surveyed, and the second temperature value that second temperature detector 60 is detected is anti-
Ultrasonic detecting unit of feeding 50, ultrasonic detecting unit 50 can be according to the speed of second temperature value calibration ultrasonic wave.
It should be noted that measured workpiece 1 is metallic conduction workpiece.
As can be seen from the above description, the above embodiments of the present invention realize following technique effect：
(1) the first temperature detector is set on the critical component of electromagnetic ultrasonic transducer, and passes through temperature monitoring unit
Monitoring, can be with each functional unit of effective protection electromagnetic ultrasonic transducer, so as to ensure the performance of electromagnetic ultrasonic transducer
And service life；
(2) second temperature detector, the surface temperature of real-time detection measured workpiece 1 are set in the bottom of electromagnetic ultrasonic transducer
Degree, and according to the speed of the temperature real time calibration ultrasonic signal for detecting, so as to reduce measure error, it is ensured that electromagnetic acoustic
The reliability of working sensor, reduces the situation of missing inspection and erroneous judgement in detection.
The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of electromagnetic ultrasonic transducer with temperature-monitoring function, including shell (10) and the shell (10) is arranged on
Internal ultrasound detection component (20), the ultrasound detection component (20) are believed for producing ultrasonic wave with measured workpiece (1) effect
Number and receive echo-signal, it is characterised in that the electromagnetic ultrasonic transducer also include temperature sensing assembly, the temperature detection
Component includes：
First temperature detector (30), is arranged in the shell (10), for detecting the temperature of the ultrasound detection component (20)
Degree；
Temperature monitoring unit (40), is electrically connected with first temperature detector (30), for receiving first temperature detection
The first temperature value that device (30) is detected simultaneously is compared with first predetermined value, when first temperature value it is pre- more than described first
Definite value, the temperature monitoring unit (40) send early warning signal.
2. electromagnetic ultrasonic transducer according to claim 1, it is characterised in that the electromagnetic ultrasonic transducer also includes super
Sound detection unit (50), the ultrasonic detecting unit (50) are electrically connected with the ultrasound detection component (20), the ultrasound detection
Unit (50) is for sending pumping signal and receive and process the ultrasonic signal that the ultrasound detection component (20) detects.
3. electromagnetic ultrasonic transducer according to claim 2, it is characterised in that the temperature sensing assembly also includes second
Temperature detector (60), the second temperature detector (60) are arranged on the bottom of the shell (10), for measuring the quilt
Survey workpiece (1) surface temperature, the temperature monitoring unit (40) respectively with the second temperature detector (60) and it is described surpass
Sound detection unit (50) is electrically connected, and the temperature monitoring unit (40) is additionally operable to receive second temperature detector (60) detection
The second temperature value for arriving, and feed back to the ultrasonic detecting unit (50), the ultrasonic detecting unit (50) is according to described second
The speed of temperature value calibration ultrasonic wave.
4. electromagnetic ultrasonic transducer according to claim 3, it is characterised in that the electromagnetic ultrasonic transducer also includes letter
Number joint (70), one end of the Signal connector (70) and the ultrasound detection component (20), first temperature detector
(30) be electrically connected with the second temperature detector (60), the other end of the Signal connector (70) by wiring with it is described
Temperature monitoring unit (40) and the ultrasonic detecting unit (50) are electrically connected.
5. electromagnetic ultrasonic transducer according to claim 3, it is characterised in that the ultrasound detection component (20) includes：
Magnet (21), is arranged on the inside of the shell (10)；
Coil (22), is arranged on the inside of the shell (10) and is located at the downside of the magnet (21).
6. electromagnetic ultrasonic transducer according to claim 5, it is characterised in that first temperature detector (30) and institute
Magnet (21) and/or the coil (22) contact are stated, to detect the temperature of the magnet (21) and/or the coil (22).
7. electromagnetic ultrasonic transducer according to claim 5, it is characterised in that the shell (10) also includes：
Cylinder (11), the cylinder (11) is with upper shed and under shed；
Mounting seat (12), is arranged on the under shed, and the magnet (21) is arranged on the upper end of the mounting seat (12), described
Coil (22) is arranged on the lower end of the mounting seat (12)；
Fixed seat (13), is arranged at the upper shed, is fixedly connected with the upper end of the magnet (21).
8. electromagnetic ultrasonic transducer according to claim 7, it is characterised in that the shell (10) also includes end cap
(14), the end cap (14) is arranged on the upper end of the fixed seat (13), for blocking the upper shed.
9. electromagnetic ultrasonic transducer according to claim 7, it is characterised in that the shell (10) also includes wear-resistant protection
Layer (15), the wear-resistant protective layer (15) is arranged on the lower end of the mounting seat (12) and covers the coil (22), described resistance to
Protective layer (15) is ground for protecting the coil (22).
10. a kind of detecting system, including the electromagnetic ultrasonic transducer and ultrasonic instrument that are connected, it is characterised in that the electromagnetism
Sonac be claim 1 to 9 any one of electromagnetic ultrasonic transducer, the electromagnetic ultrasonic transducer it is described
Temperature monitoring unit (40) and the ultrasonic detecting unit (50) are arranged on the ultrasonic instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610932123.8A CN106525276A (en) | 2016-10-31 | 2016-10-31 | Electromagnetic ultrasonic sensor with function of temperature monitoring, and detection system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610932123.8A CN106525276A (en) | 2016-10-31 | 2016-10-31 | Electromagnetic ultrasonic sensor with function of temperature monitoring, and detection system |
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| CN106525276A true CN106525276A (en) | 2017-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610932123.8A Pending CN106525276A (en) | 2016-10-31 | 2016-10-31 | Electromagnetic ultrasonic sensor with function of temperature monitoring, and detection system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115876244A (en) * | 2021-08-03 | 2023-03-31 | 科瑞工业自动化系统（苏州）有限公司 | Space multipoint temperature compensation single-double sensing system |
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| CN103134856A (en) * | 2013-02-19 | 2013-06-05 | 重庆镪镔实业有限公司 | Electromagnetic ultrasonic detecting device and method for surface defects of cold rolled ribbed steel bar |
| CN105675728A (en) * | 2016-02-03 | 2016-06-15 | 中国特种设备检测研究院 | Super-high-temperature electromagnetic acoustic sensor and obtaining method thereof |
| 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 |
| CN206161187U (en) * | 2016-10-31 | 2017-05-10 | 中国特种设备检测研究院 | Electromagnetic acoustic sensor and detecting system with temperature monitoring function |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115876244A (en) * | 2021-08-03 | 2023-03-31 | 科瑞工业自动化系统（苏州）有限公司 | Space multipoint temperature compensation single-double sensing system |
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