CN105203736B - Landslide area rock-soil material multi-parameter monitoring system and method - Google Patents
Landslide area rock-soil material multi-parameter monitoring system and method Download PDFInfo
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- CN105203736B CN105203736B CN201510664872.2A CN201510664872A CN105203736B CN 105203736 B CN105203736 B CN 105203736B CN 201510664872 A CN201510664872 A CN 201510664872A CN 105203736 B CN105203736 B CN 105203736B
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- 239000000463 material Substances 0.000 title claims abstract description 49
- 239000002689 soil Substances 0.000 title claims abstract description 45
- 238000012544 monitoring process Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000003993 interaction Effects 0.000 claims abstract description 13
- 239000000919 ceramic Substances 0.000 claims description 62
- 238000005538 encapsulation Methods 0.000 claims description 30
- 239000004579 marble Substances 0.000 claims description 23
- 230000005540 biological transmission Effects 0.000 claims description 14
- 239000003822 epoxy resin Substances 0.000 claims description 8
- 229920000647 polyepoxide Polymers 0.000 claims description 8
- 238000004806 packaging method and process Methods 0.000 claims description 7
- 238000004458 analytical method Methods 0.000 claims description 6
- 230000003321 amplification Effects 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 229910052573 porcelain Inorganic materials 0.000 claims description 2
- 230000008859 change Effects 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 8
- 230000005284 excitation Effects 0.000 description 5
- 230000006872 improvement Effects 0.000 description 4
- 238000004078 waterproofing Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
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Abstract
The invention discloses a kind of landslide area rock-soil material multi-parameter monitoring system and method, the region easily come down is embedded in by by piezoceramic transducer array, using the inverse piezoelectric effect of piezoceramic transducer, to any one piezoceramic transducer applied voltage, produce stress wave and launch to surrounding, recycle the direct piezoelectric effect of piezoceramic transducer, receive the stress wave, exportable voltage signal, the elastic modelling quantity of soil-structure interactions can be calculated by the distance of the time difference and arrangement of transmitting and receiving voltage signal；The change of the moisture content of soil property is may determine that by the change of voltage signal magnitude and whether crack damage occurs.The present invention can in real time understand the material property parameters of landslide area ground, can be used for the early warning for occurring of coming down, and effectively reduce landslide accident and occur and casualties；Compared with other monitoring methods, the method is reliable and stable, low cost, it is easy to implement, it is adaptable to the engineer applied of the landslide areas having a large capacity and a wide range.
Description
Technical field
The present invention relates to landslide area rock-soil material parameter monitoring technical field, a kind of landslide area rock-soil material is specifically related to
Multi-parameter monitoring system and method.
Background technology
The life and property safety that landslide gives people bring serious threat, the moisture content of landslide area, the bullet of soil property
Property modulus and crack damage be to characterize the key parameter whether stablized of landslide area geology.
Existing landslide monitoring method includes surface deformation monitoring, deep soils and groundwater dynamic monitoring and correlation
Four aspects such as factor monitoring, existing monitoring method cannot be carried out to the crack inside landslide, moisture content, elastic modelling quantity simultaneously
Monitoring.
The content of the invention
In order to solve the above-mentioned technical problem, the present invention proposes a kind of landslide area rock-soil material multi-parameter monitoring system and side
Method, can in real time understand the material property parameters of landslide area ground, can be used for the early warning for occurring of coming down, and effectively reduce landslide accident
Occur and casualties；Compared with other monitoring methods, the method is reliable and stable, low cost, it is easy to implement, it is adaptable to measure big face
The engineer applied of wide landslide areas.
The technical proposal of the invention is realized in this way：
A kind of landslide area rock-soil material multi-parameter monitoring system, including signal acquiring system, signal generator, power amplification
Device, several sensor encapsulations, several described sensor encapsulations are embedded at potential landslide surface both sides vicinity；The biography
Sensor packaging body includes encapsulating material and the piezoceramic transducer in the encapsulating material；One of institute is chosen successively
The piezoceramic transducer stated in sensor encapsulation is connected with the power amplifier, the power amplifier and the letter
Number generator is connected, and the piezoceramic transducer in remaining described sensor encapsulation is connected with the signal acquiring system
Connect；The signal generator can transmission signal, by the power amplifier by the signal amplify after to its corresponding piezoelectricity
Ceramic sensor element applied voltage is encouraged, and the signal acquiring system can lead to the collection of remaining piezoceramic transducer and receive the letter
Number.
As a further improvement on the present invention, the sensing element of the piezoceramic transducer is piezoelectric ceramic piece；It is described
Encapsulating material includes marble slab of two pieces of areas more than the piezoelectric ceramic piece, and the piezoelectric ceramic piece is held on described in two pieces
The middle part of marble slab, is filled with epoxy resin between the piezoelectric ceramic piece surrounding, two pieces of marble slabs.
As a further improvement on the present invention, the piezoelectric ceramic piece is square, and area is 1cm2；The marble slab is in
Square, area is 2cm2, and length-width ratio is identical with the piezoelectric ceramic piece, thickness is 2mm.
A kind of landslide area rock-soil material multi-parameter monitoring method, comprises the following steps：
A. sensor encapsulation,
Several sensor encapsulations are made, each sensor encapsulation includes encapsulating material and located at the encapsulating material
Interior piezoceramic transducer；
B. the demarcation of sensor,
Choose a piezoceramic transducer successively to be connected with a power amplifier, the power amplifier and a signal are sent out
Raw device is connected, and remaining piezoceramic transducer is connected with a signal acquiring system；Signal is produced by signal generator,
And its corresponding piezoceramic transducer applied voltage is encouraged after power amplifier amplifies the signal, adopted by signal
The signal that remaining piezoceramic transducer collection of collecting system Treatment Analysis is received, sets up the ratio between signal voltage input and output amplitude
With the relation that different soil-structure interactions moisture content, different piezoceramic transducer spacing change；
C. the preferred arrangement of Sensor,
According to soil mechanics general principle, thus it is speculated that potential landslide surface, some biographies are arranged in the both sides of the potential landslide surface
Sensor packaging body, forms piezoceramic transducer array；
D. signal acquisition,
By signal generator and power amplifier to each piezoceramic transducer in piezoceramic transducer array
Applied voltage excitation respectively, by signal acquiring system Treatment Analysis, remaining piezoceramic transducer gathers the signal for receiving；
E. the identification of multi-parameter,
According to signal is received the soil body is calculated with the density of the time difference, sensor spacing and soil-structure interactions of transmission signal
Elastic modelling quantity；Contrasted with calibration value according to the ratio between signal and transmission signal voltage magnitude is received, drawn the aqueous of the soil body
Rate and crack damage situation.
As a further improvement on the present invention, the sensing element of the piezoceramic transducer is piezoelectric ceramic piece；It is described
Encapsulating material includes marble slab of two pieces of areas more than the piezoelectric ceramic piece, and the piezoelectric ceramic piece is held on described in two pieces
The middle part of marble slab, is filled with epoxy resin between the piezoelectric ceramic piece surrounding, two pieces of marble slabs.
As a further improvement on the present invention, the piezoelectric ceramic piece is square, and area is 1cm2；The marble slab is in
Square, area is 2cm2, and length-width ratio is identical with the piezoelectric ceramic piece, thickness is 2mm.
The beneficial effects of the invention are as follows：The invention provides a kind of landslide area rock-soil material multi-parameter monitoring system, pass through
Several sensor encapsulations are embedded at potential landslide surface both sides vicinity, in choosing one of sensor encapsulation successively
Piezoceramic transducer be connected with power amplifier, power amplifier is connected with signal generator, remaining sensor
Piezoceramic transducer in packaging body is connected with signal acquiring system；So, by signal generator transmission signal, pass through
Power amplifier is encouraged after the signal is amplified to its corresponding piezoceramic transducer applied voltage, and signal acquiring system can
Gathered by remaining piezoceramic transducer and receive the signal, and then can be by transmitting and the time difference of receiving voltage signal
And the distance of arrangement can calculate the elastic modelling quantity of soil-structure interactions；The aqueous of soil property may determine that by the change of voltage magnitude
The change of rate and whether there is crack damage, therefore, the present invention can solve single-sensor cannot carry out measuring multiple parameters
Problem, can in real time understand the material property parameters of landslide area ground, can be used for the early warning for occurring of coming down, and effectively reduce landslide thing
Therefore occur and casualties；Sensor encapsulation is formed in encapsulating material by the way that piezoceramic transducer is encapsulated in, can be solved
Certainly the piezoelectric ceramic piece matter of piezoceramic transducer is crisp, the problem of water proofing property difference.
The invention provides a kind of landslide area rock-soil material multi-parameter monitoring method, by by piezoceramic transducer array
The region easily come down is embedded in, using the inverse piezoelectric effect of piezoceramic transducer, any one piezoelectric ceramics is sensed
Device applied voltage, piezoelectric ceramics sector-meeting therein produces stress wave and launches to surrounding, now recycles piezoceramic transducer
Direct piezoelectric effect, i.e., receive the stress wave using other piezoceramic transducers, piezoelectric ceramic piece therein produces deformation, can
Output voltage signal, the elasticity of soil-structure interactions can be calculated by the distance of the time difference and arrangement of transmitting and receiving voltage signal
Modulus；The change of the moisture content of soil property is may determine that by the change of voltage signal magnitude and whether crack damage occurs.With
Other monitoring methods are compared, and the method is reliable and stable, low cost, it is easy to implemented, it is adaptable to the work of the landslide areas having a large capacity and a wide range
Cheng Yingyong.
Brief description of the drawings
Fig. 1 is the structural representation of rock-soil material multi-parameter monitoring system in landslide area of the present invention；
Fig. 2 is the structural representation of sensor encapsulation in the present invention；
Fig. 3 is the fundamental diagram of rock-soil material multi-parameter monitoring method in landslide area of the present invention；
With reference to accompanying drawing, make the following instructions：
1 --- signal acquiring system 2 --- signal generator
3 --- power amplifier 4 --- sensor encapsulations
41 --- encapsulating material 411 --- marble slabs
412 --- epoxy resin 42 --- piezoceramic transducers
421 --- piezoelectric ceramic piece 5 --- potential landslide surfaces
6 --- slip mass
Specific embodiment
In order to be more clearly understood that technology contents of the invention, described in detail especially exemplified by following examples, its purpose is only
It is to be best understood from the protection domain that present disclosure is not intended to limit the present invention.
As depicted in figs. 1 and 2, a kind of landslide area rock-soil material multi-parameter monitoring system, including signal acquiring system 1, letter
Number generator 2, power amplifier 3, several sensor encapsulations 4, several described sensor encapsulations are embedded at potential cunning
Domatic both sides vicinity；The sensor encapsulation includes that encapsulating material 41 and the piezoelectric ceramics in the encapsulating material are passed
Sensor 42；Choose the piezoceramic transducer in one of them described sensor encapsulation successively (as excitation end transmission signal)
It is connected with the power amplifier, the power amplifier is connected with the signal generator, remaining described sensor
Piezoceramic transducer (gathering signal as receiving terminal) in packaging body is connected with the signal acquiring system；The signal
Generator can transmission signal, by the power amplifier by the signal amplify after its corresponding piezoceramic transducer is applied
Making alive is encouraged, and the signal acquiring system can lead to the collection of remaining piezoceramic transducer and receive the signal.So, pass through
Several sensor encapsulations are embedded at potential landslide surface both sides vicinity, in choosing one of sensor encapsulation successively
Piezoceramic transducer be connected with power amplifier, power amplifier is connected with signal generator, remaining sensor
Piezoceramic transducer in packaging body is connected with signal acquiring system；So, by signal generator transmission signal, pass through
Power amplifier is encouraged after the signal is amplified to its corresponding piezoceramic transducer applied voltage, and signal acquiring system can
Gathered by remaining piezoceramic transducer and receive the signal, and then can be by transmitting and the time difference of receiving voltage signal
And the distance of arrangement can calculate the elastic modelling quantity of soil-structure interactions；The aqueous of soil property may determine that by the change of voltage magnitude
The change of rate and whether there is crack damage, therefore, the present invention can solve single-sensor cannot carry out measuring multiple parameters
Problem, can in real time understand the material property parameters of landslide area ground, can be used for the early warning for occurring of coming down, and effectively reduce landslide thing
Therefore occur and casualties；Sensor encapsulation is formed in encapsulating material by the way that piezoceramic transducer is encapsulated in, can be solved
Certainly the piezoelectric ceramic piece matter of piezoceramic transducer is crisp, the problem of water proofing property difference.
Preferably, referring to Fig. 2, the sensing element of the piezoceramic transducer is piezoelectric ceramic piece 421；The encapsulating material
Material includes marble slab 411 of two pieces of areas more than the piezoelectric ceramic piece, and the piezoelectric ceramic piece is held on two pieces described big
The middle part of reason stone plate, is filled with epoxy resin 412 between the piezoelectric ceramic piece surrounding, two pieces of marble slabs.So, by making
Piezoelectric ceramic piece and electronic circuit are clamped with two pieces of marble slabs, and fill epoxy resin in-between, it is possible to achieve
Encapsulating to piezoelectric ceramic piece, the problem of water proofing property difference crisp to solve piezoelectric ceramic piece matter.Wherein, the monitoring of piezoelectric ceramic piece
Principle is as follows：Piezoelectric ceramic piece has positive inverse piezoelectric effect, when being encouraged to piezoceramic transducer applied voltage, piezoelectric ceramics
Sector-meeting produces deformation, if piezoelectric ceramic piece is positioned in soil-structure interactions, the deformation that piezoelectric ceramic piece is produced can be with the shape of stress wave
Formula is launched to surrounding, now recycles the direct piezoelectric effect of piezoceramic transducer, i.e., being received using other piezoelectric ceramic pieces should
Stress wave, piezoelectric ceramic piece produces deformation, output voltage signal, by the time difference and arrangement of transmitting and receiving voltage signal
Distance can calculate the elastic modelling quantity of soil-structure interactions；The change of the moisture content of soil property is may determine that by the change of voltage magnitude
And whether there is crack damage.
Preferably, the piezoelectric ceramic piece is square, and area is 1cm2；The marble slab is square, and area is 2cm2,
And length-width ratio is identical with the piezoelectric ceramic piece, thickness is 2mm.
As shown in figure 3, a kind of landslide area rock-soil material multi-parameter monitoring method, comprises the following steps：
A. sensor encapsulation,
Several sensor encapsulations are made, each sensor encapsulation includes encapsulating material and located at the encapsulating material
Interior piezoceramic transducer；
B. the demarcation of sensor,
Choose a piezoceramic transducer successively to be connected with a power amplifier, the power amplifier and a signal are sent out
Raw device is connected, and remaining piezoceramic transducer is connected with a signal acquiring system；Signal is produced by signal generator,
And its corresponding piezoceramic transducer applied voltage is encouraged after power amplifier amplifies the signal, adopted by signal
The signal that remaining piezoceramic transducer collection of collecting system Treatment Analysis is received, sets up the ratio between signal voltage input and output amplitude
With the relation that different soil-structure interactions moisture content, different piezoceramic transducer spacing change；
C. the preferred arrangement of Sensor,
According to soil mechanics general principle, thus it is speculated that potential landslide surface, some biographies are arranged in the both sides of the potential landslide surface
Sensor packaging body, forms piezoceramic transducer array；
D. signal acquisition,
By signal generator and power amplifier to each piezoceramic transducer in piezoceramic transducer array
Applied voltage excitation respectively, by signal acquiring system Treatment Analysis, remaining piezoceramic transducer gathers the signal for receiving；
E. the identification of multi-parameter,
According to signal is received the soil body is calculated with the density of the time difference, sensor spacing and soil-structure interactions of transmission signal
Elastic modelling quantity；Contrasted with calibration value according to the ratio between signal and transmission signal voltage magnitude is received, drawn the aqueous of the soil body
Rate and crack damage situation.
Landslide area rock-soil material multi-parameter monitoring method of the present invention is embedded in easily hair by by piezoceramic transducer array
The region on raw landslide, using the inverse piezoelectric effect of piezoceramic transducer, to any one piezoceramic transducer applied voltage,
Piezoelectric ceramics sector-meeting therein produces stress wave and launches to surrounding, now recycles the positive piezoelectricity effect of piezoceramic transducer
Should, i.e., the stress wave being received using other piezoceramic transducers, piezoelectric ceramic piece therein produces deformation, exportable voltage letter
Number, the elastic modelling quantity of soil-structure interactions can be calculated by the distance of the time difference and arrangement of transmitting and receiving voltage signal；Pass through
Whether the change of voltage signal magnitude may determine that the change of the moisture content of soil property and crack damage occur.With other monitoring sides
Method is compared, and the method is reliable and stable, low cost, it is easy to implemented, it is adaptable to the engineer applied of the landslide areas having a large capacity and a wide range.
Preferably, the sensing element of the piezoceramic transducer is piezoelectric ceramic piece；The encapsulating material includes two pieces
Area is more than the marble slab of the piezoelectric ceramic piece, and the piezoelectric ceramic piece is held on two pieces of middle parts of the marble slab,
Epoxy resin is filled between the piezoelectric ceramic piece surrounding, two pieces of marble slabs.
Preferably, the piezoelectric ceramic piece is square, and area is 1cm2；The marble slab is square, and area is 2cm2,
And length-width ratio is identical with the piezoelectric ceramic piece, thickness is 2mm.
The operation principle of rock-soil material multi-parameter monitoring method in landslide area of the present invention is as follows：
First, according to soil mechanics general principle, thus it is speculated that the position of potential landslide surface 5 and slip mass 6, in potential landslide surface two
Side is separately optimized arrangement piezoceramic transducer array, is sequentially connected signal generator 2, power amplifier 3 and a piezoelectricity pottery
Porcelain sensor, using the transmission signal of signal generator 2, is sensed after by power amplifier 3, signal is amplified to the piezoelectric ceramics
Device applied voltage is encouraged, and remaining piezoceramic transducer is gathered by signal acquiring system 1 and receives the signal, sets up the soil body normal
The ratio between initial signal amplitude under state and initial aqueous rate, the functional relation of piezoceramic transducer spacing.So, power is put
Big device 3 is connected with a piezoceramic transducer, used as excitation end transmission signal；Remaining all piezoceramic transducer and signal
Acquisition system 1 is connected, used as the voltage signal that receiving terminal collection is produced due to the vibration at excitation end.During this, each piezoelectricity
Ceramic sensor element is connected alternately as transmitting terminal with power amplifier, and remaining piezoceramic transducer is gathered as receiving terminal to be believed
Number.The elastic modelling quantity of the soil body can be by receiving transmitting with the time difference for receiving signal and the spacing and soil body densitometer of sensor
Obtain, when soil moisture content changes, signal amplitude and the piezoelectricity of selection that remaining piezoceramic transducer is received
The signal amplitude of ceramic sensor element transmitting compares initial alignment value and will change, by with initial alignment value function relation
Contrasted, you can obtain the changing value of soil moisture content.When potential landslide surface produces crack, the two of potential landslide surface both sides
The amplitude of individual piezoceramic transducer can have obvious reduction due to the presence amplitude in crack, can be by receiving voltage signal
Reduction amplitude judge the size in crack.
To sum up, the present invention effectively solves the problems, such as that single-sensor cannot carry out measuring multiple parameters, can be real-time
The material property parameters of landslide area ground are solved, can be used for the early warning for occurring of coming down, effectively reduced landslide accident and occur and personnel's wound
Die；Compared with other monitoring methods, the method is reliable and stable, low cost, it is easy to implement, it is adaptable to the landslide areas having a large capacity and a wide range
Engineer applied.
Above example is referring to the drawings, to a preferred embodiment of the present invention will be described in detail.Those skilled in the art
Member by carrying out to above-described embodiment modification or change on various forms, but without departing substantially from essence of the invention in the case of, all
Fall within the scope and spirit of the invention.
Claims (6)
1. a kind of landslide area rock-soil material multi-parameter monitoring system, it is characterised in that：Sent out including signal acquiring system (1), signal
Raw device (2), power amplifier (3), several sensor encapsulations (4), several described sensor encapsulations are embedded at potential
Landslide surface both sides vicinity；The sensor encapsulation includes that encapsulating material (41) and the piezoelectricity in the encapsulating material are made pottery
Porcelain sensor (42)；The piezoceramic transducer in one of them described sensor encapsulation and the power amplification are chosen successively
Device is connected, and the power amplifier is connected with the signal generator, the piezoelectricity in remaining described sensor encapsulation
Ceramic sensor element is connected with the signal acquiring system；The signal generator can transmission signal, put by the power
Big device is encouraged after the signal is amplified to its corresponding piezoceramic transducer applied voltage, and the signal acquiring system can lead to
The collection of remaining piezoceramic transducer receives the signal.
2. rock-soil material multi-parameter monitoring system in landslide area according to claim 1, it is characterised in that the piezoelectric ceramics
The sensing element of sensor is piezoelectric ceramic piece (421)；The encapsulating material includes that two pieces of areas are more than the piezoelectric ceramic piece
Marble slab (411), the piezoelectric ceramic piece is held on two pieces of middle parts of the marble slab, the piezoelectric ceramic piece four
Epoxy resin (412) is filled between week, two pieces of marble slabs.
3. rock-soil material multi-parameter monitoring system in landslide area according to claim 2, it is characterised in that the piezoelectric ceramics
Piece is square, and area is 1cm2；The marble slab is square, and area is 2cm2, and length-width ratio and the piezoelectric ceramic piece phase
Together, thickness is 2mm.
4. a kind of landslide area rock-soil material multi-parameter monitoring method, it is characterised in that：Comprise the following steps：
A. sensor encapsulation,
Several sensor encapsulations are made, each sensor encapsulation includes encapsulating material and in the encapsulating material
Piezoceramic transducer；
B. the demarcation of sensor,
Choose a piezoceramic transducer successively to be connected with a power amplifier, the power amplifier and a signal generator
It is connected, remaining piezoceramic transducer is connected with a signal acquiring system；Signal is produced by signal generator, and is led to
Overpower amplifier is encouraged after the signal is amplified to its corresponding piezoceramic transducer applied voltage, by signal acquisition system
The signal that system Treatment Analysis remaining piezoceramic transducers collection is received, set up the ratio between signal voltage input and output amplitude with
Different soil-structure interactions moisture content, the relation of different piezoceramic transducer spacing changes；
C. the preferred arrangement of Sensor,
According to soil mechanics general principle, thus it is speculated that potential landslide surface, some sensors are arranged in the both sides of the potential landslide surface
Packaging body, forms piezoceramic transducer array；
D. signal acquisition,
Each piezoceramic transducer in piezoceramic transducer array is distinguished by signal generator and power amplifier
Applied voltage is encouraged, and by signal acquiring system Treatment Analysis, remaining piezoceramic transducer gathers the signal for receiving；
E. the identification of multi-parameter,
Density according to the time difference, sensor spacing and soil-structure interactions that receive signal and transmission signal calculates the elasticity of the soil body
Modulus；Contrasted with calibration value according to the ratio between signal and transmission signal voltage magnitude is received, draw the soil body moisture content and
Crack damage situation.
5. rock-soil material multi-parameter monitoring method in landslide area according to claim 4, it is characterised in that the piezoelectric ceramics
The sensing element of sensor is piezoelectric ceramic piece；The encapsulating material includes Dali of two pieces of areas more than the piezoelectric ceramic piece
Slabstone, the piezoelectric ceramic piece is held on two pieces of middle parts of the marble slab, the piezoelectric ceramic piece surrounding, two blocks of marbles
Epoxy resin is filled between plate.
6. rock-soil material multi-parameter monitoring system in landslide area according to claim 5, it is characterised in that the piezoelectric ceramics
Piece is square, and area is 1cm2；The marble slab is square, and area is 2cm2, and length-width ratio and the piezoelectric ceramic piece phase
Together, thickness is 2mm.
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| CN113356284B (en) * | 2021-06-23 | 2022-11-01 | 中国地质大学（武汉） | Rock slope locking section crack deformation monitoring device and arrangement method |
| CN114001686A (en) * | 2021-09-15 | 2022-02-01 | 湖北震泰建设工程质量检测有限责任公司 | Device for monitoring displacement deformation of sliding surface of soil slope |
| CN115574702B (en) * | 2022-09-27 | 2023-09-08 | 武汉地震工程研究院有限公司 | Slope slip monitoring method based on piezoelectric diaphragm and electromechanical impedance method |
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Effective date of registration: 20200924 Address after: Reed City Road Kunshan city Suzhou city Jiangsu province 215300 No. 1699 building 804 Taiwan Patentee after: KUNSHAN INNOVATION RESEARCH INSTITUTE OF XIDIAN University Address before: 215300 room 1608, complex south building, room 9, No. 1699, Zuchongzhi South Road, Yushan Town, Kunshan City, Suzhou City, Jiangsu Province Patentee before: JIANGSU SANCHUAN INTELLIGENT SCIENCE & TECHNOLOGY Co.,Ltd. |
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