CN207946374U - Live vacant analysis system - Google Patents
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- CN207946374U CN207946374U CN201820423926.5U CN201820423926U CN207946374U CN 207946374 U CN207946374 U CN 207946374U CN 201820423926 U CN201820423926 U CN 201820423926U CN 207946374 U CN207946374 U CN 207946374U
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Abstract
The utility model is suitable for neutron detection technical field, provide live vacant analysis system, including detection terminal and host, the detection terminal includes neutron source, thermal-neutron detector, data processing module and the first wireless transport module, wherein, the data processing module is connect with the thermal-neutron detector, and first wireless transport module is connect with the data processing module；The host includes the second wireless transport module and central processing unit, wherein for being carried out wireless communication with first wireless transport module, the central processing unit is connect second wireless transport module with second wireless transport module.It is communicated using data cable compared to traditional neutron gauge, the utility model improves the applicability to different detection environment, improve the accuracy of vacant analysis by the way that the correlation module for wireless transmission is arranged.
Description
Technical field
The utility model belongs to neutron detection technical field, more particularly to live vacant analysis system.
Background technology
The construction method that the buildings such as modern large size water power, traffic engineering pour into a mould concrete frequently with back lining of steel plate surrounding carries out
Structure, in building process, due to some unavoidable technological problems in construction, can make casting quality be affected, cause
Concrete and back lining of steel plate come to nothing or occur cavity.It is huge security risk that these, which come to nothing with cavity blemish, be easy to cause steel
Plate back boxing deformation instability when project inputs are run damages, it will seriously threatens engineering operation safety.To in order to ensure engineering
Operational safety makes the safety coefficient of building touch the mark, and needs to be detected to coming to nothing, and takes safety to arrange the part come to nothing
It applies and is protected.
In the detection to coming to nothing, it is contemplated that detection result is mainly detected by given-ioff neutron ray to coming to nothing, and
Neutron is divided into three kinds of fast neutron, slow neutron and thermal neutron.Characteristic based on neutron, it is existing to be taken off by what detector and host formed
The operation principle of empty detecting instrument is first to emit fast neutron to steel plate, and fast neutron is had an effect with the concrete material under steel plate,
Thermal neutron is ultimately formed, then thermal neutron signal acquisition is carried out by detector, and collected signal is transmitted by data cable
To host, subsequently calculated by host.Therefore existing vacant analysis instrument is when carrying out Site Detection, be easy by cable and
Environmental restrictions are detected, data cable length is likely to be breached several meters even tens meters, and very big inconvenience, while electricity are brought for detection work
Cable long distance transmission will also result in loss of data, and detection accuracy is low.
Utility model content
In view of this, the utility model embodiment provides live vacant analysis system, to solve to carry out in the prior art
It is easy when vacant analysis by detection environmental restrictions, applicability and the low problem of accuracy.
The utility model embodiment provides live vacant analysis system, including detection terminal and host, and the detection is eventually
End includes neutron source, thermal-neutron detector, data processing module and the first wireless transport module, wherein the data processing
Module is connect with the thermal-neutron detector, and first wireless transport module is connect with the data processing module；
The host includes the second wireless transport module and central processing unit, wherein second wireless transport module is used
It is carried out wireless communication in first wireless transport module, the central processing unit connects with second wireless transport module
It connects.
In live vacant analysis system described in the utility model embodiment, the neutron source is241Am-Be neutron sources
、239Pu-Be neutron sources or252Cf neutron sources.
In live vacant analysis system described in the utility model embodiment, the thermal-neutron detector include one or
More than one thermal neutron detection probe.
In live vacant analysis system described in the utility model embodiment, the data processing module includes photoelectricity times
Increase pipe, Signal-regulated kinase and terminal central processing unit, wherein the photomultiplier is connect with the thermal-neutron detector,
The Signal-regulated kinase is connect with the photomultiplier, and the terminal central processing unit connects with the Signal-regulated kinase
It connects.
In live vacant analysis system described in the utility model embodiment, the detection terminal further includes the first power supply
Module, first power module and the photomultiplier, the terminal central processing unit and first wireless transmission
Module connects.
In live vacant analysis system described in the utility model embodiment, the host further includes second source mould
Block, the second power supply module are connect with second wireless transport module and the central processing unit.
In live vacant analysis system described in the utility model embodiment, the host further includes alarm module, institute
Alarm module is stated to connect with the central processing unit.
In live vacant analysis system described in the utility model embodiment, the host further includes display module, institute
Display module is stated to connect with the central processing unit.
In live vacant analysis system described in the utility model embodiment, the host further includes memory module, institute
Memory module is stated to connect with the central processing unit.
In live vacant analysis system described in the utility model embodiment, the host further includes control module, institute
Control module is stated to connect with the central processing unit.
Existing advantageous effect is the utility model embodiment compared with prior art：The utility model embodiment proposes packet
Live vacant analysis system containing detection terminal and host, wherein detection terminal include neutron source, thermal-neutron detector, at data
Module and the first wireless transport module are managed, after neutron source sends fast neutron to measured medium, is received by thermal-neutron detector fast
What is generated after moderation of neutrons hankers subsignal, and after data processing module is handled, and by treated, information is wireless by first
Transmission module is transmitted to host；Host includes the second wireless transport module and central processing unit, and the second wireless transport module receives
Detection terminal treated information, and central processing unit is transmitted it to, distance of coming to nothing, this practicality are calculated by central processing unit
New embodiment is carried out data transmission between detection terminal and host using wireless mode, instead of data cable, is improved
To the applicability of different detection environment, detection accuracy is improved.
Description of the drawings
It, below will be to embodiment or the prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only that this practicality is new
Some embodiments of type for those of ordinary skill in the art without having to pay creative labor, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the structure diagram for the live vacant analysis system that the utility model embodiment provides；
Fig. 2 is the structure diagram for the detection terminal that another embodiment of the utility model provides；
Fig. 3 is the structure diagram for the host that another embodiment of the utility model provides.
Specific implementation mode
In being described below, for illustration and not for limitation, it is proposed that such as tool of particular system structure, technology etc
Body details, to understand thoroughly the utility model embodiment.However, it will be clear to one skilled in the art that there is no these
The utility model can also be realized in the other embodiments of detail.In other situations, omit to well-known system,
The detailed description of apparatus, circuit and method, in case unnecessary details interferes the description of the utility model.
The specification and claims of the utility model and term " first " in attached drawing, " second " etc. are for distinguishing
Different objects, rather than for describing particular order.In order to illustrate technical solution described in the utility model, below by specific
Embodiment illustrates.
Fig. 1 is the structure diagram for the live vacant analysis system that the utility model embodiment provides, for convenience of description only
Only the parts related to this embodiment are shown.
Shown in Figure 1, scene vacant analysis system 1 provided in this embodiment includes detection terminal 2 and host 3, wherein
Detection terminal 2 includes neutron source 21, thermal-neutron detector 22, data processing module 23 and the first wireless transport module 24, master
Machine 3 includes the second wireless transport module 31 and central processing unit 32.
When carrying out vacant analysis, detection terminal 2 is positioned over around measured medium, by the neutron source in detection terminal 2
21 emit fast neutron ray to measured medium.Since in Practical Project, the application scenarios of vacant analysis are usually to detect coagulation
Coming to nothing between native building light plate and concrete, therefore unify to illustrate using the application scenarios later, but should know
, this does not constitute the restriction to the utility model embodiment.In above-mentioned application scenarios, detection terminal 2 is positioned over
Surface of steel plate, and emit fast neutron from neutron source 21 to steel plate side.Since fast neutron has for the big substance of atomic weight
Very strong penetration capacity, but across atomic weight small substance when can be decelerated and slowing down, and concrete is by gravel aggregate, thick
Sand and cement are formed plus water mix, therefore concrete is a kind of good fast neutron moderator.So fast neutron can pass through one
Determine the steel plate of thickness, and the substance under steel plate in concrete collides, thermal neutron is formed after deceleration slowing down.Steel plate with it is mixed
Degree difference of coming to nothing between solidifying soil, generates and reflected thermal neutron quantity is also different, therefore can pass through thermal-neutron detector
Subsignal is hankered in 22 acquisitions, and carries out subsequent processing.
Preferably, the neutron source 21 is241Am-Be neutron sources,239Pu-Be neutron sources or252Cf neutron sources.Above-mentioned three
Kind neutron source is widely used, and fast neutron emits situation and stablizes, therefore can be applicable in the utility model embodiment.
Preferably, the detection terminal 2 further includes shroud module, and the shroud module is located at the outer of the neutron source 21
Portion.Shroud module can shroud neutron source 21 with housing form, only leave 21 bottom of neutron source, so that neutron source 21 is to steel plate side
Fast neutron ray occurs.Shroud module can be made of neutron shielding material, the high material of such as painting boron polyethylene or other hydrogen contents,
It can prevent the Radiation On Human body that neutron source generates from causing damages, improve the safety of detection terminal.
Preferably, the thermal-neutron detector 22 includes one or more thermal neutron detection probe.Due to neutron
Albedo it is also related with the content of water in concrete, if the high-moisture concrete in certain region and steel plate come to nothing compared with
Greatly, then the neutron count rate caused by coming to nothing reduces, meeting and the neutron count rate raising caused by high-moisture offset each other,
Therefore the concrete that be generally directed to different water cut carries out model construction, then carry out thermal neutron detection.But in the utility model reality
It applies in example, one or more thermal neutron detection probe is installed on thermal-neutron detector 22, by building thermal neutron inspection
The mathematical model of probing head and distance of coming to nothing, so as to without the influence for considering concrete moisture content, promote detection efficiency.It is preferred that
Ground, the thermal-neutron detector 22 be thicker gas electron multiplier (Thick Gaseous Electron Multiplier,
THGEM), lithium glass scintillation detector,3He direct ratios gaseous counter or BF3Direct ratio gaseous counter, above-mentioned four kinds of thermal neutrons
The Effect on Detecting of detector is good, therefore can be applicable in the utility model embodiment, to promote the accuracy of vacant analysis.
Since the subsignal of hankering detected through thermal-neutron detector 22 cannot be directly used to calculate, therefore pass through data processing
Module 23 will hanker subsignal and be converted into thermal neutron count value.It is noted that after thermal neutron count value converts, it can
By 23 direct founding mathematical models of data processing module, thermal neutron count value is carried out distance of coming to nothing is calculated, but in this reality
With in new embodiment, more preferably selection is that thermal neutron count value is transmitted to the first wireless transmission mould by data processing module 23
Block 24, and it is belonged into second nothing for detecting live host 3 by being wirelessly transmitted to by the first wireless transport module 24
Line transmission module 31 promotes detection efficiency to make the process resource of detection terminal 2 be saved.Wherein, as shown in Figure 1, number
It is bidirectional data transfers relationship according to processing module 23 and the first wireless transport module 24, i.e. the first wireless transport module 24 also can be to
23 transmission data of data processing module.In addition, the first wireless transport module 24 and the second wireless transport module 31 belong to same
Module, and be also bidirectional data transfers relationship, i.e. the second wireless transport module 31 equally can be to the first wireless transport module 24
Carry out the wireless transmission of data.
Preferably, the first wireless transport module 24 and the second wireless transport module 31 can be used bluetooth module, WIFI module,
ZigBee protocol module or 433 megahertzs of wireless modules etc..The wireless module actually chosen can be determined according to site environment, in this reality
With in new embodiment, preferential selection is ZigBee protocol module F8913 or 433 megahertzs of wireless module JZX1278-
433M can reach better wireless data transmission effect while taking into account economy.
After the second wireless transport module 31 of host 3 receives thermal neutron count value, central processing unit is transmitted it to
32, processing is further analyzed, obtains distance of coming to nothing.Second wireless transport module 31 is also two-way number with central processing unit 32
According to transmission relationship, control instruction can be transmitted in central processing unit 32, and detection is wirelessly transmitted to eventually via the second wireless transport module 31
End 2 controls to be realized to detection terminal 2.For the calculating process of central processing unit 32, for example, if thermal neutron detection
Device 22 includes two thermal neutron detection probes will lead to then will obtain two thermal neutron count values when hanker sub-count
It crosses and receives and pass through the thermal neutron count value that processing obtains apart from the thermal neutron detection probe of neutron source 21 farther out and be denoted as the first meter
Numerical value, and will receive and pass through the thermal neutron count value that processing obtains by the thermal neutron detection probe closer apart from neutron source 21
It is denoted as the second count value, then with the increase for distance of coming to nothing, the ratio of the first count value and the second count value can also become larger.Therefore it can
Experiment is first passed through, obtains the functional relation of the ratio of the first count value and the second count value and distance of coming to nothing, then carry out reality
Test is based on above-mentioned functional relation, you can accurately calculate by actually detected the first count value and the second count value arrived
Actual distance of coming to nothing.In addition it is also possible to using a thermal neutron detection probe, through experimental construction go out to come to nothing distance with by this
Functional relation between the thermal neutron count value that thermal neutron detection probe receives and processes, then actual detection is carried out, it counts
Calculate actual distance of coming to nothing.Certainly, thermal neutron detection probe may be three or more, and relevant functional relation also can
Corresponding change, is no longer repeated herein.After central processing unit 32 calculates, the distance that can will subsequently come to nothing of host 3 passes through not
The detection personnel of operation host 3 are fed back to form.
Include detection terminal and host by structure by embodiment illustrated in fig. 1 it is found that in the utility model embodiment
Live vacant analysis system, detection terminal includes neutron source, thermal-neutron detector, data processing module and first wireless passes
Defeated module, wherein data processing module are connect with thermal-neutron detector, and the first wireless transport module is connect with data processing module,
And host includes the second wireless transport module and central processing unit, wherein central processing unit is connect with the second wireless transport module,
It is perfect from transmitting fast neutron to the process for calculating distance of coming to nothing, instead of data cable traditional between detection terminal and host
Transmission mode is lost when preventing data from being transmitted in data cable, and improves the applicability to Different field environment.
Fig. 2 is a kind of concrete structure block diagram for the data processing module 23 that the utility model embodiment provides, and embodiment is hankered
The transition process of subsignal illustrate only part related to the present embodiment for convenience of description.
Shown in Figure 2, data processing module 23 provided in this embodiment includes photomultiplier 231, signal condition mould
Block 232 and terminal central processing unit 233, Signal-regulated kinase 232 are connect with photomultiplier 231, terminal central processing unit
233 connect with Signal-regulated kinase 232.Detection terminal 2 further includes the first power module 25, with photomultiplier 231, terminal
Central processing unit 233 and the connection of the first wireless transport module 24.
Photomultiplier 231 is the vacuum electron device that faint optical signal is converted to electric signal, in the utility model reality
It applies in example for the subsignal of hankering that thermal-neutron detector 22 is got to be converted to the electricity that can be transmitted in detection terminal 2
Signal.After conversion, for photomultiplier 231 by electric signal transmission to Signal-regulated kinase 232, Signal-regulated kinase 232 is right
Electric signal carries out preposition amplification and signal screening, and carries out pulse-shaping and counting.It, will after Signal-regulated kinase 232 has been handled
Amplified electric signal transmission is to terminal central processing unit 233.Terminal central processing unit 233 is getting thermal neutron count value
Afterwards, thermal neutron count value and other detection datas are stored using included storage section, and carries out thermal neutron meter
Mathematical model between numerical value and distance of coming to nothing calculates, but in the utility model embodiment, and more preferably selection is terminal center
The thermal neutron count value got is directly wirelessly transmitted to host 3 by processor 233, is calculated by host 3, from
And accelerate detection efficiency.Since the storage unit possible capacity that terminal central processing unit 233 carries is little, therefore can also peripheral hardware storage
Component is stored.Preferably, terminal central processing unit 233 is STM32F103ZET6 microcontrollers, and processing capacity can be supported
The application of the utility model embodiment.
Further include the first power module to make the modules normal operation in data processing module 23, detection terminal 2
25, the first power module 25 is connect with photomultiplier 231, terminal central processing unit 233 and the first wireless transport module 24.Value
It must illustrate, the first power module 25 does not indicate merely some battery or power, and refers to a whole set of be used for detection terminal 2
The power-supply system of power supply, in addition, the first power module shown in Fig. 2 25 may also include with the connection relation of other modules
Voltage transfer process, such as boost or depressurization.
Preferably, the first power module 25 is by 18.5V, rechargeable lithium battery, MAX1685 chips and the auxiliary of 2.2Ah
Circuit is constituted.When being powered to photomultiplier 231, requires to be high pressure due to its input voltage, therefore need in photoelectricity times
High-voltage power module, preferably CC228P-13Y high-pressure modulars are disposed in the front end for increasing pipe 231, more, in CC228P-13Y high
The voltage that rechargeable lithium battery transmits is converted to+12V voltages, to meet CC228P-13Y by the input front end part of die block
The input voltage requirement of high-pressure modular.Other voltage transfer processes mainly have, and the voltage of rechargeable lithium battery transmission is converted
For ± 5V voltages, it is used to power to the component for being used for preposition amplification in Signal-regulated kinase 232；By rechargeable lithium battery transmission
Voltage is converted to+3.3V voltages, for will hanker the corresponding pulse signal of subsignal be converted to rule square wave and to
STM32F103ZET6 microcontrollers are powered.
By embodiment illustrated in fig. 2 it is found that in the utility model embodiment, photomultiplier transit is specifically included in detection terminal
Pipe, Signal-regulated kinase and terminal central processing unit, Signal-regulated kinase are connect with photomultiplier, terminal central processing unit and
Signal-regulated kinase connect, detection terminal further includes the first power module in addition, for the modules in detection terminal into
Row power supply embodies from the transfer process for hankering subsignal to thermal neutron count value, amplifies by signal and improve, improve and obtain
The accuracy rate for the thermal neutron count value got.
Fig. 3 is a kind of concrete structure block diagram for the host 3 that the utility model embodiment provides, in the base for calculating distance of coming to nothing
On plinth, more such as alarms, display and interaction function are realized, illustrate only for convenience of description related to the present embodiment
Part.
Shown in Figure 3, host 3 provided in this embodiment is in addition to including the second wireless transport module 31 and central processing unit
Except 32, it may also include alarm module 33, display module 34, memory module 35 and control module 36, alarm module 33, display
All there are connection relations with central processing unit 32 for module 34, memory module 35 and control module 36.Preferably, central processing unit
32 can be consistent for the terminal central processing unit 233 in STM32F103ZET6 microcontrollers, with detection terminal 2, facilitates control.
For alarm module 33 for reminding the state of vacant analysis, alarm module 33 can be by light emitting diode (Light
Emitting Diode, LED), sound module or both be composed, certain alarm module 33 can also be can be used for reminding by other
Module or other it is multiple for prompting block combiners constitute.The carrying out practically situation of alarm module 33, to be made of LED
Alarm module 33 for example, if central processing unit 32 is calculated to come to nothing that distance is normal, and central processing unit 32 will be normal
Instruction is transmitted to alarm module 33, the state for making LED be in flash green or not flicker；If distance of coming to nothing is more than preset threshold
Value, that is, engineering safety can be seriously endangered by coming to nothing, then alarm command is transmitted to alarm module 33 by central processing unit 32, makes LED
Feux rouges is flickered, to remind detection personnel.In addition, the mechanism of self-test can be increased in vacant analysis system 1 at the scene, once scene is de-
Empty detecting system 1 powers on, then modules start self-test, then will be with by central processing unit 32 if some component self-test malfunctions
The corresponding alarm command of the component is transmitted to alarm module 33, alarms.In addition, can also be arranged in alarm module 33 different
Type of alarm, gone wrong with the component for indicating different.
Liquid crystal display can be used in display module 34, for showing through the calculated distance of coming to nothing of central processing unit 32, also
It can be used for showing instrument essential information and the thermal neutron count value etc. of detection terminal 1 and host 2.Memory module 35 is for storing
The classification of information, information is determined according to practical application scene, such as distance etc. of coming to nothing, and central processing unit 32 can also be to memory module
The information realization of 35 storages is transferred.Preferably, memory module 35 is W25Q64 chips.Control module 36 for make detection personnel and
Host 3 realizes human-computer interaction, is preferably made of button and auxiliary circuit, certainly also more forms of the composition.
Preferably, the host 3 further includes second power supply module, and the second power supply module is wirelessly transferred with described second
Module 31 and the central processing unit 32 connect.As the first power module 25 in detection terminal 2, second power supply module
In the presence of the premise for being modules normal operation in host 3 and host 3.In the utility model embodiment, second source mould
The lithium battery of 3.7V and mating charger Max1811 can be used in block, further includes that boosting type converter Max1797 and voltage-dropping type turn
The voltage that 3.7V lithium batteries transmit can be converted to+5.0V and+3.3V by parallel operation Max1837 respectively, to support more different moulds
Block is run.
By embodiment illustrated in fig. 3 it is found that in the utility model embodiment, host is in addition to including the second wireless transmission mould
Except block and central processing unit, it may also include alarm module, display module, memory module and control module, alarm module is shown
Show that module, memory module and control module are all connect with central processing unit, sending out instruction by central processing unit is controlled,
It is achievable more multi-functional, improve the applicability and ease for use of live vacant analysis system.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, is not described in detail or remembers in some embodiment
The part of load may refer to the associated description of other embodiments.
Embodiment described above is only to illustrate the technical solution of the utility model, rather than its limitations；Although with reference to before
Embodiment is stated the utility model is described in detail, it will be understood by those of ordinary skill in the art that：It still can be with
Technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features；And
These modifications or replacements, the spirit for various embodiments of the utility model technical solution that it does not separate the essence of the corresponding technical solution
And range, it should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of scene vacant analysis system, including detection terminal and host, which is characterized in that the detection terminal includes neutron
Source, thermal-neutron detector, data processing module and the first wireless transport module, wherein the data processing module with it is described
Thermal-neutron detector connects, and first wireless transport module is connect with the data processing module；
The host include the second wireless transport module and central processing unit, wherein second wireless transport module be used for
First wireless transport module carries out wireless communication, and the central processing unit is connect with second wireless transport module.
2. scene vacant analysis system as described in claim 1, which is characterized in that the neutron source is241Am-Be neutron sources
、239Pu-Be neutron sources or252Cf neutron sources.
3. scene vacant analysis system as described in claim 1, which is characterized in that the thermal-neutron detector include one or
More than one thermal neutron detection probe.
4. scene vacant analysis system as described in claim 1, which is characterized in that the data processing module includes photoelectricity times
Increase pipe, Signal-regulated kinase and terminal central processing unit, wherein the photomultiplier is connect with the thermal-neutron detector,
The Signal-regulated kinase is connect with the photomultiplier, and the terminal central processing unit connects with the Signal-regulated kinase
It connects.
5. scene vacant analysis system as claimed in claim 4, which is characterized in that the detection terminal further includes the first power supply
Module, first power module and the photomultiplier, the terminal central processing unit and first wireless transmission
Module connects.
6. scene vacant analysis system as described in claim 1, which is characterized in that the host further includes second source mould
Block, the second power supply module are connect with second wireless transport module and the central processing unit.
7. scene vacant analysis system as described in claim 1, which is characterized in that the host further includes alarm module, institute
Alarm module is stated to connect with the central processing unit.
8. scene vacant analysis system as described in claim 1, which is characterized in that the host further includes display module, institute
Display module is stated to connect with the central processing unit.
9. scene vacant analysis system as described in claim 1, which is characterized in that the host further includes memory module, institute
Memory module is stated to connect with the central processing unit.
10. scene vacant analysis system as described in claim 1, which is characterized in that the host further includes control module, institute
Control module is stated to connect with the central processing unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820423926.5U CN207946374U (en) | 2018-03-27 | 2018-03-27 | Live vacant analysis system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820423926.5U CN207946374U (en) | 2018-03-27 | 2018-03-27 | Live vacant analysis system |
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| CN207946374U true CN207946374U (en) | 2018-10-09 |
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| CN201820423926.5U Active CN207946374U (en) | 2018-03-27 | 2018-03-27 | Live vacant analysis system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110286137A (en) * | 2019-07-24 | 2019-09-27 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of equivalent NEUTRON METHOD detection device of coming to nothing in steel-shelled concrete interface |
-
2018
- 2018-03-27 CN CN201820423926.5U patent/CN207946374U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110286137A (en) * | 2019-07-24 | 2019-09-27 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of equivalent NEUTRON METHOD detection device of coming to nothing in steel-shelled concrete interface |
| CN110286137B (en) * | 2019-07-24 | 2022-04-08 | 水利部交通运输部国家能源局南京水利科学研究院 | Steel shell concrete interface equivalent void neutron method detection device |
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