CN207798431U - A kind of environmental suitability test device of structural member and health monitoring equipment - Google Patents
A kind of environmental suitability test device of structural member and health monitoring equipment Download PDFInfo
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- CN207798431U CN207798431U CN201820102560.1U CN201820102560U CN207798431U CN 207798431 U CN207798431 U CN 207798431U CN 201820102560 U CN201820102560 U CN 201820102560U CN 207798431 U CN207798431 U CN 207798431U
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Abstract
The utility model discloses a kind of structural member and the environmental suitability test devices of health monitoring equipment, it includes laboratory cavity, Load Simulation module, environmental simulation module, structural health detection module and the live photographing module being arranged in the cavity of laboratory, are located at the user monitoring terminal of laboratory containment portion；The structural health detection module is arranged on test specimen and positioned at the inside of Load Simulation module, and the user monitoring terminal is connect by wireless transport module or wire transmission module with environmental simulation module, structural health detection module and live photographing module.The utility model is reasonable for structure, pass through Load Simulation module and environmental simulation module, it is combined with wire transmission using wireless transmission, realize the simulation of civil engineering structure or component and its health monitoring equipment actual working state, it disclosure satisfy that experiment needs safe and reliable, steady in a long-term, have the advantages that have a wide range of application, intelligence degree height, be easily managed, simple operation.
Description
Technical field
The utility model belongs to construction engineering technical field, and the environment for being related to a kind of structural member and health monitoring equipment adapts to
Property experimental rig.
Background technology
Development in terms of monitoring structural health conditions is now as follows：
First, the environmental change multiterminal residing in commission civil engineering structure or component, such as difference variation are drenched with rain or acid
Rain corrosion etc., some even very severe；
Secondly, after engineering structure operation, with the increase of service life, civil engineering structure or component can gradually expose
Go out ageing deterioration problem, caused structural damage accident frequently occurs, and accelerates the development of monitoring structural health conditions.
It is well known that by carrying out health monitoring to civil engineering structure or component, its unusual condition is found, carry out in time
The measures such as early warning, repair or replacement, dismounting avoid the generation of disaster accident and the loss of property.
But due to being used for structural healthy monitoring system（Including civil engineering structure or component, detection sensor or other
Component or equipment etc.）Working performance itself can also be influenced by environment, or even error or stop operation.Therefore, to soil
Wood engineering structure or component and its environmental suitability of monitoring structural health conditions equipment, which carry out research, to be very important.But mesh
The preceding document not yet found in relation to test method and device.
It is now as follows in the development of environmental simulation equipment aspect：Environment simulation experiment equipment development at present is very fast, for list
The experimental facilities of one even a variety of environmental simulations is more mature, such as salt-mist corrosion tester, high-low temperature test chamber, examination of drenching with rain
Tryoff, environmental simulation experimental apparatus（A kind of environmental simulation experimental apparatus：CN201247239 Y）Deng.Although these may be implemented
Simulation to true nature environment, but the actually located shape to civil engineering structure and its health monitoring equipment can not be simulated
State, including its extraneous load for being born and long duration load under environment collective effect, Engineering Structure Component and its structural health
The variation of the physical and mechanical property of monitoring system.
The experimental rig of patent application --- load and environment coupled action lower prop time-variation mechanics performance
（CN102393329B）It is only capable of realizing the experiment under the load of this single load bearing body of reinforced column and environment coupled action,
And largely there is the structure or component of multidirectional complicated applied force in practical civil engineering；And this technology can only measure the mechanics of this kind of column
Performance can not achieve the environmental suitability development test to its health monitoring equipment.
Utility model content
The purpose of this utility model is the ring of a kind of structural member and health monitoring equipment that provide in view of the above technical problems
Border compatibility test device, may be implemented simulation civil engineering structure or component suffered by unidirectional or multidirectional project management model, simulation
Natural environment state residing for civil engineering structure or component and its health monitoring equipment, overcomes present in existing background technology
Deficiency at least gives one useful selection of the public.
The technical solution of the utility model
In order to solve the above technical problems, a kind of structural member provided by the utility model and the environment of health monitoring equipment adapt to
Property experimental rig comprising laboratory cavity, the Load Simulation module being arranged in the cavity of laboratory, environmental simulation module, knot
Structure health detection module and live photographing module, are located at the user monitoring terminal of laboratory containment portion；The structural health inspection
Module is surveyed to be arranged on test specimen and positioned at the inside of Load Simulation module, the user monitoring terminal by wireless transport module or
Wire transmission module is connect with environmental simulation module, structural health detection module and live photographing module；The Load Simulation mould
Block includes reaction frame, vertical loader, horizontal addload device and synchronous hydraulic loader, the reaction frame, vertical loader and water
Flat loader comprehensive function is on test specimen；The structural health detection module is made of multiple sensors and is arranged on test specimen,
It includes temperature sensor, humidity sensor, optical sensor, strain gauge and strain transducer.
In the application, the test specimen is civil engineering structure or its component；The Load Simulation module is used for the examination
Part application direct load, simulation civil engineering structure or component actually bear external load situation；The environmental simulation module is used
In applying indirectly-acting to the test specimen and structural health detection module, civil engineering structure or component and its health detection are simulated
Environmental activity suffered by system；The structural health detection module is that the actually used health monitoring of civil engineering structure is set
Network that is standby, being made of multiple sensors mounted thereto can detect the temperature of the test specimen, internal force, strain, deformation
Situations such as.
Further, the laboratory cavity is made of inner wall, intermediate insulating layer and outer wall, is provided with removable fill
Hermetic seal separated door；It is provided with default force transmission hole at the top of the laboratory cavity, camera, side wall are provided on inner wall
On be provided with direct surveillance mouthful.
Further, the environmental simulation module includes rain spray nozzle, LED lamp tube, UV Ultraluminescences fluorescent tube, refrigeration/system
Heat pipeline, CO2Feeder, evaporation type humidifier, rainwater device and SO2And H2S feeders；The rain spray nozzle setting exists
The top of laboratory cavity, the refrigerating/heating pipeline are distributed on the inner wall of laboratory cavity, and the LED lamp tube setting exists
On the inner wall of laboratory cavity, the UV Ultraluminescences fluorescent tube is arranged at the cavity top corner of laboratory；The CO2Gas supply dress
It sets, evaporation type humidifier, rainwater device and SO2And H2S feeders are arranged between the material installation outside the cavity of laboratory
It is interior, it is connected with laboratory cavity by the gas transport hole on the cavity wall of laboratory；With the variation of flexible illumination simulation, height
Low temperature variation, Drought-wet change, leaching（Acid）Rain, carbonization environment carry out corresponding experiment.
Further, the user monitoring terminal includes monitoring host computer, server, display unit and alarm, the prison
Control host sends out the running parameter and collection, transmission, processing, storage and call signal of instruction control related equipment, passes through
The wire transmission module carries out intelligent management and control to the relevant device of the Load Simulation module automatically, passes through wired biography
Defeated module or the wireless transport module are based on site environment Parameters variation automatically to the relevant device of the environmental simulation module
Intelligent management and control is carried out, intelligence is carried out to the live photographing module and structural health detection module by the wireless transport module
Management and control can be changed.
Further, the user monitoring terminal is connected by wire transmission module and the communication of synchronous hydraulic loader.
Further, the wireless transport module includes Date Conversion Unit, the first wireless transmitting terminals, the second wireless receiving
End, the first wireless receiving end and the second wireless transmitting terminals, first wireless transmitting terminals and the second wireless receiving end are arranged in reality
It tests in chamber body, first wireless receiving end and the second wireless transmitting terminals are arranged in user monitoring terminal.
Further, the communication mode of the wireless transport module include but not limited to bluetooth, ZigBee, Wi-Fi, GSM,
GPRS、CDMA、WLAN、WAN。
The utility model advantageous effect：
The environmental suitability test device of a kind of structural member provided by the utility model and health monitoring equipment, structure are closed
Reason, can not only simulate the natural environment state residing for civil engineering structure or component and its health monitoring equipment, can also be real
The unidirectional or multidirectional stressed, Moment suffered by civil engineering structure or component is now simulated, disclosure satisfy that safe and reliable, long-term steady
Fixed experiment needs, and has the advantages that have a wide range of application, intelligence degree height, be easily managed, simple operation；For understanding and grinding
The environmental suitability for studying carefully civil engineering structure and its health monitoring equipment has important reference value.
Description of the drawings
By being described in detail made by conjunction with the following drawings, the above-mentioned advantage of the utility model will be apparent and more hold
Readily understood, these attached drawings are only schematical, are not intended to limit the utility model, wherein：
Fig. 1 is the structure of a kind of structural member described in the utility model and the environmental suitability test device of health monitoring equipment
Schematic diagram；
Fig. 2 is the structural schematic diagram of the laboratory cavity of the utility model；
Fig. 3 is the structural schematic diagram of the wireless transport module of the utility model.
In attached drawing, the component representated by each label is as follows：
1. laboratory cavity；2. test specimen；3. Load Simulation module；4. environmental simulation module；5. structural health detection module；
6. live photographing module；7. wireless transport module；8. wire transmission module；9. user monitoring terminal；10. rain spray nozzle；11. anti-
Power frame；12. vertical loader；13. synchronous hydraulic loader；14. exhaust outlet；15. temperature sensor；16. humidity sensor；
17. optical sensor；18. camera；19. horizontal addload device；20. gas transport hole；21. between material installation；22. waste liquid overflow
Mouthful；23. strain gauge；24.LED fluorescent tubes；25. default force transmission hole；26. strain transducer；27. foundation bolt；28. refrigeration/
Heat pipeline；29.UV Ultraluminescence fluorescent tubes；30.CO2Feeder；31. evaporation type humidifier；32.CO2Concentration sensor；
33. rainwater device；34.SO2And H2S feeders.
Specific implementation mode
It is suitable to the environment of a kind of structural member of the utility model and health monitoring equipment with reference to specific embodiments and the drawings
Answering property experimental rig is described in detail.
The embodiment recorded herein is the specific specific implementation mode of the utility model, for illustrating the utility model
Design, is explanatory and illustrative, should not be construed as the limit to the utility model embodiment and the scope of the utility model
System.In addition to the embodiment recorded herein, those skilled in the art can also be based on the application claims and specification institute is public
For the content opened using obvious other technical solutions, these technical solutions include doing using the embodiment to recording herein
Go out the technical solution of any obvious substitutions and modifications.
The attached drawing of this specification is schematic diagram, aids in illustrating the design of the utility model, it is schematically indicated each section
Shape and its correlation.It note that the structure of each component for the ease of clearly showing the utility model embodiment, respectively
It is not drawn according to identical ratio between attached drawing.Identical reference marker is for indicating identical part.
The structural schematic diagram of a kind of structural member and the environmental suitability test device of health monitoring equipment, such as Fig. 1 to Fig. 2 institutes
Show, specifically includes laboratory cavity 1, the Load Simulation module 3 that is arranged in laboratory cavity 1, environmental simulation module 4, knot
Structure health detection module 5 and live photographing module 6, the user monitoring terminal 9 being located at outside laboratory cavity 1；The structure is strong
Health detection module 5 is arranged on test specimen 2 and positioned at the inside of Load Simulation module 3, the user monitoring terminal 9 is by wirelessly passing
Defeated module 7 or wire transmission module 8 are connect with environmental simulation module 4, structural health detection module 5 and live photographing module 6；Institute
It states Load Simulation module 3 and includes reaction frame 11, vertical loader 12, horizontal addload device 19 and synchronous hydraulic loader 13, it is described
Reaction frame 11, vertical loader 12 and 19 comprehensive function of horizontal addload device are on test specimen 2；The structural health detection module 5 by
Multiple sensors constitute and are arranged on test specimen 2 comprising temperature sensor 15, humidity sensor 16, optical sensor 17, stress
Sensor 23 and strain transducer 26.
In the application, the Load Simulation module 3 is used to apply direct load to the test specimen, simulates civil engineering structure
Or component actually bears external load situation；The environmental simulation module 4 is used for the test specimen and structural health detection module
Apply indirectly-acting, simulates the environmental activity suffered by civil engineering structure or component and its health detecting system；The structure
Health detection module 5 is the actually used health monitoring equipment of civil engineering structure, is by multiple sensors mounted thereto
The network of composition, situations such as temperature of the test specimen, internal force, strain, deformation can be detected.
The laboratory cavity 1 is made of inner wall, intermediate insulating layer and outer wall, is provided with removable pneumatic sealing point
Partition door；Increasing or reducing for lab space may be implemented by removable pneumatic sealed separation door, until being merged into development experiment
Space, to realize that the experiment effectively controlled different size test specimens, flexible and convenient operation improve equipment service efficiency.
In the application, the inner-wall material of laboratory cavity 1 selects the nonmetallic composite with high and low temperature resistance and corrosion resistance
Seamless welding or SUS 316L stainless steel plates, outer wall select galvanizing anti-corrosion dual-layer colour steel plate, intermediate insulating layer to fill high density
The Special thermal insulation layer of fire-retardant polyurethane or foamed polystyrene.
The top of the laboratory cavity 1 is provided with default force transmission hole 25, and two wall symmetric position of left and right is each one default
Default force transmission hole 25 uses gas-flow closure item to carry out pneumatic compression sealing to prevent gas leakage, and according to different sample dimensions demands
A series of mating sealing devices ensure excellent sealing.
It is provided with camera 18 on the inner wall of laboratory cavity 1, passes through wireless transport module 7 and 9 phase of user monitoring terminal
Even, convenient for grasp in real time and observation test process.One or more cameras 18 can be set on the inner wall of laboratory cavity 1,
By the intelligent control of user monitoring terminal 9, can automatic rotary modulation section sight, and with meet capture it is each in laboratory cavity 1
A position is to require, and have the performances such as anticorrosion, high-resolution.To prevent adverse circumstances from influencing its normal work, it is preferable that adopt
It is interrogated with day and leads to industrial TXF-304 anticorrosions H-type video camera, met C5-M, NEMA 4X anticorrosion standards, can effectively avoid acid
Property, Neutral Salt Spray Corrosion, meet IP67 water proof and dust proof standards, be suitable for the environment of moist or more water.
The side wall of laboratory cavity 1 is equipped with spare direct surveillance mouthful, if necessary can scene sight for testing crew
Examine laboratory inside cavity real-time condition, it may be preferable that a kind of waterproof antifogging surface modified glass is used, there is self-cleaning function,
Observation sight is interfered with preventing water drops fog.
Fig. 2 is the structural schematic diagram of the laboratory cavity of the utility model, and vertical loader 12 passes through default force transmission hole 25
It stretches into inside laboratory cavity 1 and vertical load F1 and F2 is applied to test specimen 2, and can be curved to test specimen application by adjusting F1 and F2
Square, horizontal addload device 19 stretch into 1 inside of laboratory cavity by default force transmission hole 25 and apply horizontal loading to test specimen 2.Reaction frame
The surrounding of 11 each column and the junction of bottom plate is equipped with four foundation bolts 27, is used for the fixation of reaction frame 11.
In laboratory, the top of cavity 1 is additionally provided with exhaust outlet 14, and in laboratory, the bottom of cavity 1 is additionally provided with waste liquid and overflows
Head piece 22, preferably to ensure the experimental enviroment of laboratory inside cavity.
The environmental simulation module 4 includes rain spray nozzle 10, LED lamp tube 24, UV Ultraluminescences fluorescent tube 29, refrigerating/heating
Pipeline 28, CO2Feeder 30, evaporation type humidifier 31, rainwater device 33 and SO2And H2S feeders 34；The spray of drenching with rain
First 10 are arranged at the top of laboratory cavity 1, and the refrigerating/heating pipeline 28 is distributed on the inner wall of laboratory cavity 1, described
LED lamp tube 24 is arranged on the inner wall of laboratory cavity 1, and the setting of UV Ultraluminescences fluorescent tube 29 is at 1 top of laboratory cavity
Corner；Refrigerating/heating pipeline 28 to be uniformly arranged the temperature change that can be marked inside laboratory cavity 1 consistent, be environment
Compatibility test provides guarantee.
The CO2Feeder 30, evaporation type humidifier 31, rainwater device 33 and SO2And H2The setting of S feeders 34 exists
In 21 between material installation outside laboratory cavity 1, pass through gas transport hole 20 on 1 side wall of laboratory cavity and experiment
Chamber body 1 is connected；With the variation of flexible illumination simulation, high/low temperature variation, Drought-wet change, leaching（Acid）Rain, carbonization environment carry out phase
The experiment answered.
The user monitoring terminal 9 includes monitoring host computer, server, display unit and alarm, the monitoring host computer hair
The running parameter and collection, transmission, processing, storage and call signal for going out instruction control related equipment, by described wired
Transmission module 8 carries out intelligent management and control to the relevant device of the Load Simulation module 3 automatically, passes through the wire transmission module
8 or described wireless transport modules 7 automatically carry out the relevant device of the environmental simulation module 4 based on site environment Parameters variation
Intelligent management and control carries out intelligence by the wireless transport module 7 to the live photographing module 6 and structural health detection module 5
Management and control can be changed.The user monitoring terminal 9 is connected by wire transmission module 8 and the communication of synchronous hydraulic loader 13.
Fig. 3 is the structural schematic diagram of the wireless transport module of the utility model, specifically include Date Conversion Unit 101,
First wireless transmitting terminals 102, the second wireless receiving end 103, the first wireless receiving end 104 and the second wireless transmitting terminals 105, it is described
First wireless transmitting terminals 102 and the second wireless receiving end 103 are arranged in laboratory cavity 1, first wireless receiving end 104
And second wireless transmitting terminals 105 be arranged in user monitoring terminal 9.
The data that each sensor in laboratory cavity 1 is acquired are transferred to data by RS485 or RS232 interface and turn
Unit 101 is changed, the first wireless receiving end 104 is sent to by the first wireless transmitting terminals 102；User monitoring terminal 9 sends out instruction,
It is transferred to the second wireless receiving end 103 by the second wireless transmitting terminals 105, controls the related equipment in laboratory cavity 1
Work.
In the application, the communication mode of the wireless transport module 7 include but not limited to bluetooth, ZigBee, Wi-Fi,
GSM、GPRS、CDMA、WLAN、WAN。
Meanwhile present invention also provides a kind of structural member and the environmental suitability test method of health monitoring equipment, tools
Body includes the following steps：
Test specimen 2 is placed on Load Simulation by the environmental suitability test device of S1, building structure part and health monitoring equipment
The inside of module 3；
The each of Load Simulation module 3, environmental simulation module 4 and structural health detection module 5 is arranged according to experimental condition in S2
Item parameter passes through 9 input control of user monitoring terminal and instructs progress compatibility test；
S3 obtains the environmental suitability test result of structural member and health monitoring equipment from user monitoring terminal 9 and carries out
Analysis.
Compared with the prior art the shortcomings that and deficiency, a kind of structural member provided by the utility model and health monitoring equipment
Environmental suitability test device, it is reasonable for structure, by Load Simulation module and environmental simulation module, using wireless transmission with it is wired
Transmission combines, and realizes the simulation of civil engineering structure or component and its health monitoring equipment actual working state, not only can be with mould
Natural environment state residing for quasi- civil engineering structure or component and its health monitoring equipment, can also simulate civil engineering structure
Or the unidirectional or multidirectional stressed, Moment suffered by component, it disclosure satisfy that experiment needs safe and reliable, steady in a long-term, have
Have a wide range of application, the advantages of intelligence degree is high, be easily managed, simple operation.
The utility model is not limited to the above embodiment, anyone can obtain other under the enlightenment of the utility model
Various forms of products, however, make any variation in its shape or structure, it is every with identical or similar to the present application
Technical solution, all fall within the scope of protection of the utility model.
Claims (7)
1. the environmental suitability test device of a kind of structural member and health monitoring equipment, which is characterized in that including laboratory cavity
（1）, it is arranged in laboratory cavity（1）Interior Load Simulation module（3）, environmental simulation module（4）, structural health detection module
（5）And live photographing module（6）, it is located at laboratory cavity（1）External user monitoring terminal（9）；The structural health detection
Module（5）It is arranged in test specimen（2）It goes up and is located at Load Simulation module（3）Inside, the user monitoring terminal（9）By wireless
Transmission module（7）Or wire transmission module（8）With environmental simulation module（4）, structural health detection module（5）And scene camera shooting mould
Block（6）Connection；The Load Simulation module（3）Including reaction frame（11）, vertical loader（12）, horizontal addload device（19）And it is same
Stepped hydraulic loader（13）, the reaction frame（11）, vertical loader（12）And horizontal addload device（19）Comprehensive function is in test specimen
（2）On；The structural health detection module（5）It is made of and is arranged in test specimen multiple sensors（2）On comprising temperature sensing
Device（15）, humidity sensor（16）, optical sensor（17）, strain gauge（23）And strain transducer（26）.
2. structural member and the environmental suitability test device of health monitoring equipment according to claim 1, which is characterized in that institute
State laboratory cavity（1）It is made of inner wall, intermediate insulating layer and outer wall, is provided with removable pneumatic sealed separation door；Institute
State laboratory cavity（1）Top be provided with default force transmission hole（25）, camera is provided on inner wall（18）, set on side wall
It is equipped with direct surveillance mouthful.
3. structural member and the environmental suitability test device of health monitoring equipment according to claim 1, which is characterized in that institute
State environmental simulation module（4）Including rain spray nozzle（10）, LED lamp tube（24）, UV Ultraluminescence fluorescent tubes（29）, refrigerating/heating pipe
Road（28）、CO2Feeder（30）, evaporation type humidifier（31）, rainwater device（33）And SO2And H2S feeders（34）；Institute
State rain spray nozzle（10）It is arranged in laboratory cavity（1）Top, the refrigerating/heating pipeline（28）It is distributed on laboratory cavity
（1）Inner wall on, the LED lamp tube（24）It is arranged in laboratory cavity（1）Inner wall on, the UV Ultraluminescences fluorescent tube（29）
It is arranged in laboratory cavity（1）At top corner；The CO2Feeder（30）, evaporation type humidifier（31）, rainwater device
（33）And SO2And H2S feeders（34）It is arranged in laboratory cavity（1）Between outer material installation（21）It is interior, pass through reality
Test chamber body（1）Gas transport hole on side wall（20）With laboratory cavity（1）It is connected.
4. structural member and the environmental suitability test device of health monitoring equipment according to claim 1, which is characterized in that institute
State user monitoring terminal（9）Including monitoring host computer, server, display unit and alarm, the monitoring host computer sends out instruction control
The running parameter and collection, transmission, processing, storage and call signal of related equipment processed, pass through the wire transmission module
（8）Automatically to the Load Simulation module（3）Relevant device carry out intelligent management and control, pass through the wire transmission module（8）
Or the wireless transport module（7）Based on site environment Parameters variation automatically to the environmental simulation module（4）Relevant device
Intelligent management and control is carried out, the wireless transport module is passed through（7）To the live photographing module（6）With structural health detection module
（5）Carry out intelligent management and control.
5. structural member and the environmental suitability test device of health monitoring equipment according to claim 4, which is characterized in that institute
State user monitoring terminal（9）Pass through wire transmission module（8）With synchronous hydraulic loader（13）Communication connection.
6. structural member and the environmental suitability test device of health monitoring equipment according to claim 1, which is characterized in that institute
State wireless transport module（7）Including Date Conversion Unit（101）, the first wireless transmitting terminals（102）, the second wireless receiving end
（103）, the first wireless receiving end（104）And second wireless transmitting terminals（105）, first wireless transmitting terminals（102）And second
Wireless receiving end（103）It is arranged in laboratory cavity（1）It is interior, first wireless receiving end（104）And second wireless transmitting terminals
（105）It is arranged in user monitoring terminal（9）It is interior.
7. structural member and the environmental suitability test device of health monitoring equipment according to claim 1, which is characterized in that institute
State wireless transport module（7）Communication mode include but not limited to bluetooth, ZigBee, Wi-Fi, GSM, GPRS, CDMA, WLAN,
WAN。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820102560.1U CN207798431U (en) | 2018-01-22 | 2018-01-22 | A kind of environmental suitability test device of structural member and health monitoring equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820102560.1U CN207798431U (en) | 2018-01-22 | 2018-01-22 | A kind of environmental suitability test device of structural member and health monitoring equipment |
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| Publication Number | Publication Date |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108168926A (en) * | 2018-01-22 | 2018-06-15 | 浙江大学城市学院 | A kind of environmental suitability test device of structural member and health monitoring equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108168926A (en) * | 2018-01-22 | 2018-06-15 | 浙江大学城市学院 | A kind of environmental suitability test device of structural member and health monitoring equipment |
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