CN105785435B - Seismic physical model experimental system and its analog data acquisition method and apparatus - Google Patents
Seismic physical model experimental system and its analog data acquisition method and apparatus Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 44
- 239000007788 liquid Substances 0.000 claims abstract description 108
- 238000002474 experimental method Methods 0.000 claims abstract description 67
- 230000005284 excitation Effects 0.000 claims abstract description 65
- 239000012530 fluid Substances 0.000 claims abstract description 25
- 238000005070 sampling Methods 0.000 claims description 34
- 238000012937 correction Methods 0.000 claims description 26
- 238000004088 simulation Methods 0.000 claims description 16
- 238000002604 ultrasonography Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 230000002463 transducing effect Effects 0.000 claims description 4
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/22—Transmitting seismic signals to recording or processing apparatus
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/28—Processing seismic data, e.g. for interpretation or for event detection
- G01V1/282—Application of seismic models, synthetic seismograms
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Abstract
The present invention provides a kind of seismic physical model experimental system and its analog data acquisition method and apparatus, are related to seismic physical model acquisition technique field.The system includes：Seismic physical model, excitation energy converter, receives energy converter, liquid slot device at analog acquisition control system, and the bottom surface of seismic physical model is plane, and it is placed in the liquid slot device filled with liquid；Fluid level in liquid slot device is higher than seismic physical model；It excites energy converter and receives energy converter and completely attached to fluid level, and contact plane is identical as fluid level height；Excitation energy converter and reception energy converter are connect with analog acquisition control system.The present invention can solve current traditional seismic physical modeling experiment ultrasonic energy decaying, it is not enough to the inner case of detection seismic physical model, and the data SNR acquired is relatively low, and experimentation needs a large amount of manual interventions, seismic physical model data acquisition time is long, the low problem of collecting efficiency.
Description
Technical field
The present invention relates to seismic physical model acquisition technique field more particularly to a kind of seismic physical model experimental system and
Its analog data acquisition method and apparatus.
Background technology
Currently, with the development of oil-gas exploration technology, China is several in the highest priority area of oil-gas exploration and development at this stage
It is directed to relief surface landform, such as the Caidamu Basin, the Sichuan Basin and Tarim Basin etc..In relief surface region, by
It is changed greatly in the elevation of landform so that seismic data signal-to-noise ratio that field seismic acquisition arrives is low, wave field is complicated, increases
The period and difficulty of later stage seism processing and explanation, therefore increase the difficulty in the oil-gas exploration of relief surface region.
By seismic physical model come carry out seismic physical modeling be in seismic exploration technique it is a kind of it is effective it is theoretical with it is real
The means being mutually authenticated are trampled, for the seismic wave field propagation law in research relief surface region, solve to be badly in need of grinding in oil-gas exploration
Complicated earth surface seismic exploration technique problem studied carefully etc. all has a very important significance.Currently traditional passes through seismic physical model
To carry out the mode of seismic physical modeling experiment as shown in Figure 1, controlling excitation energy converter 101 by computer and receiving energy converter
102 are respectively placed in 103 surface point of seismic physical model, and then control excitation energy converter 101 emits ultrasonic wave (simulation field
In seismic prospecting dynamite source excitation), by receive energy converter 102 receive and record from physical model internal reflection return
Ultrasonic wave (simulation field seismometer receives the reflected seismic wave field in subsurface formations interface), thus can be complete in laboratory
At the gatherer process similar with the practical exploration in field.
Current excitation energy converter 101 and reception energy converter 102 is directly to be contacted with the surface of seismic physical model 103
's.And have the seismic physical model of fluctuating for surface, exciting energy converter and receiving energy converter is with seismic physical model surface
The coupled modes contacted firmly are easy to cause excitation energy converter and receive energy converter and the poor contact of seismic physical model surface, make
To decay when passing through contact surface at ultrasonic energy, ultrasonic energy is not enough to the inner case of detection seismic physical model,
And the data SNR acquired is relatively low.In addition, since seismic physical model surface undulation is uneven, energy converter and reception is excited to change
Energy device is difficult to be positioned over seismic physical model surface, and experimentation may also need to a large amount of manual intervention, cause seismic physical
The model data collecting time is long, and collecting efficiency is low.
Invention content
A kind of seismic physical model experimental system of the embodiment of the present invention offer and its analog data acquisition method and apparatus,
To solve current traditional seismic physical modeling experiment ultrasonic energy decaying, it is not enough to the inside feelings of detection seismic physical model
Condition, and the data SNR that is acquired is relatively low and experimentation needs a large amount of manual interventions, the acquisition of seismic physical model data
Time is long, the low problem of collecting efficiency.
In order to achieve the above objectives, the present invention adopts the following technical scheme that：
A kind of seismic physical model experimental system, including：Seismic physical model, analog acquisition control system, excitation transducing
Device receives energy converter, liquid slot device, and the bottom surface of the seismic physical model is plane, and the seismic physical model is placed in
In the liquid slot device filled with liquid；Fluid level in the liquid slot device is higher than the seismic physical model；
The excitation energy converter and reception energy converter are completely attached to the fluid level, and contact plane and the fluid level height
It is identical；The excitation energy converter and reception energy converter are connect with the analog acquisition control system；
The excitation energy converter, for emitting the first ultrasonic signal to the seismic physical model；
The reception energy converter, the second ultrasonic signal for receiving the seismic physical model reflection；
The analog acquisition control system, the ultrasonic wave transmitting terminal for controlling excitation energy converter are in pre-set and swash
Point coordinates is sent out, and the ultrasonic wave receiving terminal for controlling and receiving energy converter is in pre-set reception point coordinates, and from described second
Acquisition time information in ultrasonic signal forms the first discrete-time series.
Specifically, the liquid in the liquid slot device is the water of a pre-set constant temperature.
It is real to be applied to above-mentioned seismic physical model for a kind of analog data acquisition method of seismic physical model experimental system
Check system, the method includes：
Plane right-angle coordinate is established in the horizontal direction；
The experiment coordinate information once tested is received, the experiment coordinate information includes that the shot point on fluid level is sat
Mark and reception point coordinates；
The ultrasonic wave transmitting terminal of control excitation energy converter is in the excitation point coordinates, and controls and receives the ultrasound of energy converter
Wave receiving terminal is in the reception point coordinates；
It controls the excitation energy converter and emits the first ultrasonic signal to seismic physical model；
Control and receive the second ultrasonic signal that energy converter receives seismic physical model reflection；
Acquisition time information, formation from second ultrasonic signal with pre-set sampling interval and sampling number
First discrete-time series；
First discrete-time series are corrected, the second discrete-time series are generated；
Seismic physical model experimental simulation data are generated according to second discrete-time series of many experiments.
Further, the analog data acquisition method of the seismic physical model experimental system further includes：
It determines first altitude data on the seismic physical model surface at the excitation point coordinates, and determines the receiving point
Second altitude data on the seismic physical model surface at coordinate；
Determine the third altitude data of current liquid plane.
Further, the analog data acquisition method of the seismic physical model experimental system further includes：
Determine spread speed of the current ultrasonic signal in the liquid of liquid slot device.
In addition, the analog data acquisition method of the seismic physical model experimental system, further includes：
According to first altitude data, the biography of third altitude data and ultrasonic signal in the liquid of liquid slot device
Speed is broadcast, caused by the ultrasonic wave transmitting terminal to the liquid level between seismic physical model surface for determining current excitation energy converter
First ultrasonic wave hourage is poor；
The first ultrasonic wave hourage difference is：Wherein, h0For the high number of passes of the third
According to；v0For spread speed of the ultrasonic signal in the liquid of liquid slot device；(sxi,syi) it is the excitation that current ith is tested
Point coordinates；For the first altitude data of ith experiment.
In addition, the analog data acquisition method of the seismic physical model experimental system, further includes：
According to second altitude data, the biography of third altitude data and ultrasonic signal in the liquid of liquid slot device
Speed is broadcast, caused by the ultrasonic wave receiving terminal to the liquid level between seismic physical model surface for determining current reception energy converter
Second ultrasonic wave hourage is poor；
The second ultrasonic wave hourage difference is：Wherein, (rxi,ryi) it is current i-th
The reception point coordinates of secondary experiment；For second altitude data of ith experiment.
Specifically, being corrected to first discrete-time series, the second discrete-time series are generated, including：
According to the first ultrasonic wave hourage is poor, the second ultrasonic wave hourage difference and the sampling interval determine one
Correction parameter；The correction parameter is：Wherein, dt is the sampling interval；
It indicatesValue using rounding up mode round numbers；
According to first discrete-time series and the correction parameter, second discrete-time series are generated；It is described
Second discrete-time series are：
Wherein, si' (j) is the discrete time value of j-th of sampled point of the second discrete-time series of ith experiment；si(j
+ k) be ith experiment the first discrete-time series jth+k sampled points discrete time value；M is the sampling number.
It is real to be applied to above-mentioned seismic physical model for a kind of analog data acquisition device of seismic physical model experimental system
Check system, described device include：
Establishment of coordinate system unit, for establishing plane right-angle coordinate in the horizontal direction；
Coordinate information receiving unit is tested, for receiving the experiment coordinate information once tested, the experiment coordinate information
Include excitation point coordinates and reception point coordinates on fluid level；
Transducer position control unit, the ultrasonic wave transmitting terminal for controlling excitation energy converter are in shot point seat
Mark, and the ultrasonic wave receiving terminal for controlling and receiving energy converter is in the reception point coordinates；
Ultrasonic signal emission controlling unit the first surpasses for controlling the excitation energy converter to seismic physical model transmitting
Acoustic signals；
Ultrasound signal receipt control unit receives the second surpassing for seismic physical model reflection for controlling and receiving energy converter
Acoustic signals；
First discrete-time series generation unit, for pre-set sampling interval and sampling number from described second
Acquisition time information in ultrasonic signal forms the first discrete-time series；
Unit is corrected, for being corrected to first discrete-time series, generates the second discrete-time series；
Seismic physical model experimental simulation data generating unit, for the second discrete time sequence according to many experiments
Column-generation seismic physical model experimental simulation data.
Further, the analog data acquisition device of the seismic physical model experimental system further includes：
Altitude data determination unit, the first elevation for determining the seismic physical model surface at the excitation point coordinates
Data, determine second altitude data on the seismic physical model surface at the reception point coordinates, and determine that current liquid is flat
The third altitude data in face.
Further, the analog data acquisition device of the seismic physical model experimental system further includes：
Spread speed determination unit, for determining propagation speed of the current ultrasonic signal in the liquid of liquid slot device
Degree.
Further, the analog data acquisition device of the seismic physical model experimental system further includes：
First ultrasonic wave hourage difference determination unit, for according to first altitude data, third altitude data and
Spread speed of the ultrasonic signal in the liquid of liquid slot device determines that the ultrasonic wave transmitting terminal of current excitation energy converter arrives
First ultrasonic wave hourage caused by liquid level between seismic physical model surface is poor；
The first ultrasonic wave hourage difference is：Wherein, h0For the high number of passes of the third
According to；v0For spread speed of the ultrasonic signal in the liquid of liquid slot device；(sxi,syi) it is the excitation that current ith is tested
Point coordinates；For the first altitude data of ith experiment.
Further, the analog data acquisition device of the seismic physical model experimental system further includes：
Second ultrasonic wave hourage difference determination unit, for according to second altitude data, third altitude data and
Spread speed of the ultrasonic signal in the liquid of liquid slot device determines that the ultrasonic wave receiving terminal of current reception energy converter arrives
Second ultrasonic wave hourage caused by liquid level between seismic physical model surface is poor；
The second ultrasonic wave hourage difference is：Wherein, (rxi,ryi) it is current i-th
The reception point coordinates of secondary experiment；For second altitude data of ith experiment.
In addition, the correction unit, including：
Correction parameter determining module, for according to the first ultrasonic wave hourage is poor, the second ultrasonic wave hourage
The poor and described sampling interval determines a correction parameter；The correction parameter is：Wherein, dt is described
Sampling interval；It indicatesValue using rounding up mode round numbers；
Second discrete-time series generation module is used for according to first discrete-time series and the correction parameter,
Generate second discrete-time series；Second discrete-time series are：
Wherein, si' (j) is the discrete time value of j-th of sampled point of the second discrete-time series of ith experiment；si(j
+ k) be ith experiment the first discrete-time series jth+k sampled points discrete time value；M is the sampling number.
A kind of seismic physical model experimental system and its analog data acquisition method and apparatus provided in an embodiment of the present invention,
The excitation energy converter applied and energy converter is received not with seismic physical model by the way of contacting firmly, but pass through centre
The liquid level of setting comes and seismic physical model interval.In this way, the finally formed earthquake object of the seismic physical model experimental system
It is relatively high to manage model experiment analogue data noise, it is as a result more accurate.And in the analogue data of seismic physical model experimental system
In acquisition method, energy converter is excited to emit the first ultrasonic signal to seismic physical model by control, and control and receive transducing
Device receives the second ultrasonic signal of seismic physical model reflection；The is formed according to the temporal information of the second ultrasonic signal acquisition
One discrete-time series；The first discrete-time series will be stated by, which also needing in turn, is corrected, to overcome liquid level to pass ultrasonic wave
The influence broadcast generates the second discrete-time series；Later earthquake is produced according to the second discrete-time series of many experiments
Physical model experiment analogue data.As it can be seen that the present invention can avoid current traditional seismic physical modeling experiment ultrasonic energy
Decay due to the poor contact of the hard way of contact, is not enough to the inner case of detection seismic physical model, and the number acquired
It is believed that relatively low and experimentation of making an uproar needs a large amount of manual interventions, seismic physical model data acquisition time is long, collecting efficiency
Low problem.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without having to pay creative labor, may be used also for those of ordinary skill in the art
With obtain other attached drawings according to these attached drawings.
Fig. 1 for it is in the prior art it is traditional by seismic physical model come carry out seismic physical modeling experiment deployment signal
Figure；
Fig. 2 is a kind of structural schematic diagram of seismic physical model experimental system provided in an embodiment of the present invention；
Fig. 3 is a kind of stream of the analog data acquisition method of seismic physical model experimental system provided in an embodiment of the present invention
Journey figure one；
Fig. 4 is a kind of stream of the analog data acquisition method of seismic physical model experimental system provided in an embodiment of the present invention
Journey figure two；
Fig. 5 is the experimental result data of the seismic physical model experimental result data and the prior art in the embodiment of the present invention
Schematic diagram；
Fig. 6 is a kind of knot of the analog data acquisition device of seismic physical model experimental system provided in an embodiment of the present invention
Structure schematic diagram one；
Fig. 7 is a kind of knot of the analog data acquisition device of seismic physical model experimental system provided in an embodiment of the present invention
Structure schematic diagram two.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Fig. 2, the embodiment of the present invention provides a kind of seismic physical model experimental system 20, including：Seismic physical mould
Type 201, excitation energy converter 203, receives energy converter 204, liquid slot device 205 at analog acquisition control system 202.The earthquake object
The bottom surface for managing model 201 is plane, and the seismic physical model 201 is positioned over filled with liquid 206, and is positioned on horizontal plane
Liquid slot device 205 in；Fluid level in liquid slot device 205 is higher than seismic physical model 201；Excite energy converter 203
It is completely attached to fluid level with energy converter 204 is received, and contact plane is identical as fluid level height；Excite energy converter 203
It is connect with analog acquisition control system 202 with energy converter 204 is received.
The excitation energy converter 203 can emit the first ultrasonic signal to seismic physical model 201.
The reception energy converter 204 can receive the second ultrasonic signal of the reflection of seismic physical model 201.
Analog acquisition control system 202, the ultrasonic wave transmitting terminal that can control excitation energy converter 203 are in pre-set
Point coordinates is excited, and the ultrasonic wave receiving terminal for controlling and receiving energy converter 204 is in pre-set reception point coordinates, and from described
Acquisition time information in second ultrasonic signal forms the first discrete-time series.
Herein, it excites energy converter 203 and receives energy converter 204 and completely attached to fluid level, and contact plane and liquid
Level is identical, be in order to ensure excite energy converter 203 and reception energy converter 204 can with fluid level good coupling,
And fluid level is not invaded, it is conducive to the accurate of altitude data.
Seismic physical model 201 involved by the embodiment of the present invention is referred to the actual structure of geological body in field and reality
Obtained surface relief altitude data is measured, is in certain proportion with actual address body structure, such as 1：5000 or 1:10000
Deng, but it is not only limited to this.
It is worth noting that the liquid 206 in liquid slot device 205 can be the water of a pre-set constant temperature.This is default
Steady temperature is more than 0 DEG C, to ensure that water does not freeze.In addition, the liquid 206 can also use other lower liquid of viscosity,
Details are not described herein again.
A kind of seismic physical model experimental system provided in an embodiment of the present invention, applied in excitation energy converter and connect
Energy converter is received not with seismic physical model using contacting firmly by the way of, but by the intermediate liquid level being arranged come with earthquake object
Manage model interval.In this way, the finally formed seismic physical model experimental simulation data noise of the seismic physical model experimental system
It is relatively high, it is as a result more accurate.Current traditional seismic physical modeling is avoided to test ultrasonic energy due to the hard way of contact
Poor contact and decay, be not enough to the inner case of detection seismic physical model, and the data SNR acquired is relatively low, and
Experimentation needs a large amount of manual interventions, and seismic physical model data acquisition time is long, the low problem of collecting efficiency.
In addition, as shown in figure 3, the embodiment of the present invention provides a kind of analog data acquisition of seismic physical model experimental system
Method, is applied to above-mentioned seismic physical model experimental system shown in Fig. 2, and this method includes：
Step 301 establishes plane right-angle coordinate in the horizontal direction.
The experiment coordinate information that step 302, reception are once tested, experiment coordinate information includes the excitation on fluid level
Point coordinates and reception point coordinates.
Step 303, control excite the ultrasonic wave transmitting terminal of energy converter to be in excitation point coordinates, and control and receive energy converter
Ultrasonic wave receiving terminal, which is in, receives point coordinates.
Step 304, control excitation energy converter emit the first ultrasonic signal to seismic physical model.
Step 305 controls and receives the second ultrasonic signal that energy converter receives seismic physical model reflection.
Step 306, with pre-set sampling interval and sampling number from the second ultrasonic signal acquisition time information,
Form the first discrete-time series.
Step 307 is corrected the first discrete-time series, generates the second discrete-time series.
Step 308 generates seismic physical model experimental simulation data according to the second discrete-time series of many experiments.
A kind of analog data acquisition method of seismic physical model experimental system provided in an embodiment of the present invention, is applied
It excites energy converter and receives energy converter not with seismic physical model by the way of contacting firmly, but pass through the liquid of centre setting
Body layer comes and seismic physical model interval.In this way, exciting energy converter to emit the first ultrasonic wave to seismic physical model by control
Signal, and control and receive the second ultrasonic signal that energy converter receives seismic physical model reflection；According to the second ultrasonic signal
The temporal information of acquisition forms the first discrete-time series；The first discrete-time series will be stated by, which also needing in turn, is corrected, with
Overcome influence of the liquid level to ultrasonic propagation, generates the second discrete-time series；It is discrete according to the second of many experiments later
Time series produces seismic physical model experimental simulation data.As it can be seen that the present invention can avoid current traditional earthquake object
Reason simulated experiment ultrasonic energy is decayed due to the poor contact of the hard way of contact, is not enough to the interior of detection seismic physical model
Portion's situation, and the data SNR that is acquired is relatively low and experimentation needs a large amount of manual interventions, seismic physical model data
Acquisition time is long, the low problem of collecting efficiency.
In order to make those skilled in the art be better understood by the present invention, a more detailed embodiment is set forth below,
As shown in figure 4, the embodiment of the present invention provides a kind of analog data acquisition method of seismic physical model experimental system, it is applied to upper
Seismic physical model experimental system shown in Fig. 2 is stated, this method includes：
Step 401 establishes plane right-angle coordinate in the horizontal direction.
The origin of plane right-angle coordinate herein can arbitrarily be chosen in liquid slot device.
The experiment coordinate information that step 402, reception are once tested, experiment coordinate information includes the excitation on fluid level
Point coordinates and reception point coordinates.
Specifically, often once being tested, both need to obtain primary experiment coordinate information, so that sitting subsequently through experiment
Mark information excites the position of energy converter and reception energy converter to control.
Step 403 determines the first altitude data for exciting the seismic physical model surface at point coordinates, and determines receiving point
Second altitude data on the seismic physical model surface at coordinate determines the third altitude data of current liquid plane.
Step 404 determines spread speed of the current ultrasonic signal in the liquid of liquid slot device.
Step 405, according to the first altitude data, third altitude data and ultrasonic signal in the liquid of liquid slot device
Spread speed, determine that the ultrasonic wave transmitting terminal of current excitation energy converter draws to the liquid level between seismic physical model surface
The the first ultrasonic wave hourage risen is poor.
Herein, the first ultrasonic wave hourage difference is：Wherein, h0For third altitude data；
v0For spread speed of the ultrasonic signal in the liquid of liquid slot device；(sxi,syi) it is the shot point that current ith is tested
Coordinate；For the first altitude data of ith experiment.
Step 406, according to the second altitude data, third altitude data and ultrasonic signal in the liquid of liquid slot device
Spread speed, determine that the ultrasonic wave receiving terminal of current reception energy converter draws to the liquid level between seismic physical model surface
The the second ultrasonic wave hourage risen is poor.
Herein, the second ultrasonic wave hourage difference is：Wherein, (rxi,ryi) it is current the
The reception point coordinates of i experiment；For the second altitude data of ith experiment.
Step 407, control excite the ultrasonic wave transmitting terminal of energy converter to be in excitation point coordinates, and control and receive energy converter
Ultrasonic wave receiving terminal, which is in, receives point coordinates.
Step 408, control excitation energy converter emit the first ultrasonic signal to seismic physical model.
Step 409 controls and receives the second ultrasonic signal that energy converter receives seismic physical model reflection.
Step 410, with pre-set sampling interval and sampling number from the second ultrasonic signal acquisition time information,
Form the first discrete-time series.
The first discrete-time series herein can be expressed as：{Si(j), j=1,2 ..., M；I=1,2 ..., N }；Its
In, i indicates that ith experiment, j indicate that jth time sampling, M are above-mentioned sampling number, and N is experiment total degree.
Step 411, according to the first ultrasonic wave hourage is poor, the second ultrasonic wave hourage difference and sampling interval determine one
Correction parameter.
Wherein, which is：Wherein, dt is the sampling interval；It indicatesValue using rounding up mode round numbers.
Step 412, according to the first discrete-time series and correction parameter, generate the second discrete-time series.
Wherein, which is：
Wherein, si' (j) is the discrete time value of j-th of sampled point of the second discrete-time series of ith experiment；si(j
+ k) be ith experiment the first discrete-time series jth+k sampled points discrete time value；M is sampling number.
402 are returned to step after step 412 to be tested next time, if experiment number meet it is pre-set
Frequency threshold value then continues to execute step 413.
Step 413 generates seismic physical model experimental simulation data according to the second discrete-time series of many experiments.
In order to illustrate a kind of analog data acquisition method of seismic physical model experimental system provided in an embodiment of the present invention
Effect, may refer to shown in Fig. 5, wherein (a) of Fig. 5 is partly that traditional seismic physical modeling in the prior art tests institute
The schematic diagram data collected；(b) of Fig. 5 is partly to use seismic physical model experimental system provided in an embodiment of the present invention
The obtained schematic diagram data of analog data acquisition method；(c) of Fig. 5 is partly to use earthquake object provided in an embodiment of the present invention
The analog data acquisition method of model experimental systems is managed, but correction course, obtained final data are influenced without liquid level
Schematic diagram.Ordinate is the time in Fig. 5, and abscissa is seismic data Taoist monastic name.Compare 52 institute of oval frame 51 and rectangle frame in Fig. 5
Seismic wave field at the same position of instruction, it can be seen that：Seismic reflection signals corresponding to seismic physical model internal structure
The method that can be provided through the invention obtains.Information in oval frame in Fig. 5 51 is compared to portion (b) it is found that Fig. 5
Seismic signal continuity in the earthquake record got is stronger；And by the comparison of information in rectangle frame in Fig. 5 52 it is found that Fig. 5
(b) earthquake record vertical resolution for partly obtaining it is stronger.Arrow in Fig. 5 indicates (a) of Fig. 5 partly and the part (b)
The different earthquake information that two kinds of acquisition methods obtain, wherein the No.1 arrow 53 in Fig. 5 indicates what traditional analog collected
Direct-wave jamming in earthquake record.No. two arrows 54 indicate in the earthquake record that the analog acquisition of the present invention obtains in Fig. 5
The multiple wave occurred due to the presence of water layer needs to pay attention in analyzing data.Be at No. three 55 instructions of arrow in Fig. 5 without
The seismic wave field signal of later stage correction process.As it can be seen that the seismic wave field signal of non-postmenstruation correction process is deviated with Taoist monastic name.
A kind of analog data acquisition method of seismic physical model experimental system provided in an embodiment of the present invention, is applied
It excites energy converter and receives energy converter not with seismic physical model by the way of contacting firmly, but pass through the liquid of centre setting
Body layer comes and seismic physical model interval.In this way, exciting energy converter to emit the first ultrasonic wave to seismic physical model by control
Signal, and control and receive the second ultrasonic signal that energy converter receives seismic physical model reflection；According to the second ultrasonic signal
The temporal information of acquisition forms the first discrete-time series；The first discrete-time series will be stated by, which also needing in turn, is corrected, with
Overcome influence of the liquid level to ultrasonic propagation, generates the second discrete-time series；It is discrete according to the second of many experiments later
Time series produces seismic physical model experimental simulation data.As it can be seen that the present invention can avoid current traditional earthquake object
Reason simulated experiment ultrasonic energy is decayed due to the poor contact of the hard way of contact, is not enough to the interior of detection seismic physical model
Portion's situation, and the data SNR that is acquired is relatively low and experimentation needs a large amount of manual interventions, seismic physical model data
Acquisition time is long, the low problem of collecting efficiency.
Corresponding to above-mentioned Fig. 3, embodiment of the method shown in Fig. 4, as shown in fig. 6, the embodiment of the present invention provides a kind of earthquake
The analog data acquisition device of physical model experiment system is applied to above-mentioned seismic physical model experimental system, the device packet
It includes：
Establishment of coordinate system unit 61, for establishing plane right-angle coordinate in the horizontal direction.
Coordinate information receiving unit 62 is tested, for receiving the experiment coordinate information once tested, tests coordinate information packet
It includes the excitation point coordinates on fluid level and receives point coordinates.
Transducer position control unit 63, the ultrasonic wave transmitting terminal for controlling excitation energy converter are in excitation point coordinates,
And the ultrasonic wave receiving terminal for controlling and receiving energy converter is in and receives point coordinates.
Ultrasonic signal emission controlling unit 64, for controlling excitation energy converter to the first ultrasound of seismic physical model transmitting
Wave signal.
Ultrasound signal receipt control unit 65, receive seismic physical model reflection for controlling and receiving energy converter second
Ultrasonic signal.
First discrete-time series generation unit 66, for pre-set sampling interval and sampling number from the second surpassing
Acquisition time information in acoustic signals forms the first discrete-time series.
Unit 67 is corrected, for being corrected to the first discrete-time series, generates the second discrete-time series.
Seismic physical model experimental simulation data generating unit 68, for the second discrete-time series according to many experiments
Generate seismic physical model experimental simulation data.
Further, as shown in fig. 7, the analog data acquisition device of the seismic physical model experimental system, can also wrap
It includes：
Altitude data determination unit 69, it may be determined that the first high number of passes on the seismic physical model surface at excitation point coordinates
According to determining the second altitude data for receiving the seismic physical model surface at point coordinates, and determine the of current liquid plane
Three altitude datas.
Further, as shown in fig. 7, the analog data acquisition device of the seismic physical model experimental system, can also wrap
It includes：
Spread speed determination unit 70, it may be determined that propagation speed of the current ultrasonic signal in the liquid of liquid slot device
Degree.
Further, as shown in fig. 7, the analog data acquisition device of the seismic physical model experimental system, further includes：
First ultrasonic wave hourage difference determination unit 71 according to the first altitude data, third altitude data and can surpass
Spread speed of the acoustic signals in the liquid of liquid slot device, determine the ultrasonic wave transmitting terminal of current excitation energy converter to
First ultrasonic wave hourage caused by shaking the liquid level between physical model surface is poor.
First ultrasonic wave hourage difference is：Wherein, h0For third altitude data；v0For
Spread speed of the ultrasonic signal in the liquid of liquid slot device；(sxi,syi) it is the excitation point coordinates that current ith is tested；For the first altitude data of ith experiment.
Second ultrasonic wave hourage difference determination unit 72 according to the second altitude data, third altitude data and can surpass
Spread speed of the acoustic signals in the liquid of liquid slot device determines the current ultrasonic wave receiving terminal for receiving energy converter to ground
Second ultrasonic wave hourage caused by shaking the liquid level between physical model surface is poor.
Second ultrasonic wave hourage difference is：Wherein, (rxi,ryi) it is that current ith is real
The reception point coordinates tested；For the second altitude data of ith experiment.
In addition, as shown in fig. 7, the correction unit 67, may include：
Correction parameter determining module 671, for according to the first ultrasonic wave hourage is poor, the second ultrasonic wave hourage is poor
A correction parameter is determined with the sampling interval；Correction parameter is：Wherein, dt is the sampling interval；It indicatesValue using rounding up mode round numbers.
Second discrete-time series generation module 672, for according to the first discrete-time series and correction parameter, generating the
Two discrete-time series；Second discrete-time series are：
Wherein, si' (j) is the discrete time value of j-th of sampled point of the second discrete-time series of ith experiment；si(j
+ k) be ith experiment the first discrete-time series jth+k sampled points discrete time value；M is sampling number.
It is worth noting that a kind of analog data acquisition of seismic physical model experimental system provided in an embodiment of the present invention
The specific implementation of device may refer to above method embodiment, and details are not described herein again.
A kind of analog data acquisition device of seismic physical model experimental system provided in an embodiment of the present invention, is applied
It excites energy converter and receives energy converter not with seismic physical model by the way of contacting firmly, but pass through the liquid of centre setting
Body layer comes and seismic physical model interval.In this way, exciting energy converter to emit the first ultrasonic wave to seismic physical model by control
Signal, and control and receive the second ultrasonic signal that energy converter receives seismic physical model reflection；According to the second ultrasonic signal
The temporal information of acquisition forms the first discrete-time series；The first discrete-time series will be stated by, which also needing in turn, is corrected, with
Overcome influence of the liquid level to ultrasonic propagation, generates the second discrete-time series；It is discrete according to the second of many experiments later
Time series produces seismic physical model experimental simulation data.As it can be seen that the present invention can avoid current traditional earthquake object
Reason simulated experiment ultrasonic energy is decayed due to the poor contact of the hard way of contact, is not enough to the interior of detection seismic physical model
Portion's situation, and the data SNR that is acquired is relatively low and experimentation needs a large amount of manual interventions, seismic physical model data
Acquisition time is long, the low problem of collecting efficiency.
It should be understood by those skilled in the art that, the embodiment of the present invention can be provided as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, the present invention can be used in one or more wherein include computer usable program code computer
The computer program production implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of product.
The present invention be with reference to according to the method for the embodiment of the present invention, the flow of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that can be realized by computer program instructions every first-class in flowchart and/or the block diagram
The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided
Instruct the processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine so that the instruction executed by computer or the processor of other programmable data processing devices is generated for real
The device for the function of being specified in present one flow of flow chart or one box of multiple flows and/or block diagram or multiple boxes.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that instruction generation stored in the computer readable memory includes referring to
Enable the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device so that count
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, in computer or
The instruction executed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Specific embodiment is applied in the present invention, and principle and implementation of the present invention are described, above example
Explanation be merely used to help understand the present invention method and its core concept；Meanwhile for those of ordinary skill in the art,
According to the thought of the present invention, there will be changes in the specific implementation manner and application range, in conclusion in this specification
Appearance should not be construed as limiting the invention.
Claims (10)
1. a kind of analog data acquisition method of seismic physical model experimental system, which is characterized in that be applied to a kind of earthquake object
Model experimental systems are managed, including：Seismic physical model, excitation energy converter, receives energy converter and liquid at analog acquisition control system
The bottom surface of slot device, the seismic physical model is plane, and the seismic physical model is placed in the liquid filled with liquid
In body slot device；Fluid level in the liquid slot device is higher than the seismic physical model；It the excitation energy converter and connects
It receives energy converter to completely attach to the fluid level, and contact plane is identical as the fluid level height；The excitation transducing
Device and reception energy converter are connect with the analog acquisition control system；
The excitation energy converter, for emitting the first ultrasonic signal to the seismic physical model；
The reception energy converter, the second ultrasonic signal for receiving the seismic physical model reflection；
The analog acquisition control system, the ultrasonic wave transmitting terminal for controlling excitation energy converter are in pre-set shot point
Coordinate, and the ultrasonic wave receiving terminal for controlling and receiving energy converter is in pre-set reception point coordinates, and it is ultrasonic from described second
Acquisition time information in wave signal forms the first discrete-time series；
Liquid in the liquid slot device is the water of a pre-set constant temperature；
The method includes：
Plane right-angle coordinate is established in the horizontal direction；
Receive the experiment coordinate information once tested, the experiment coordinate information include excitation point coordinates on fluid level and
Receive point coordinates；
The ultrasonic wave transmitting terminal of control excitation energy converter is in the excitation point coordinates, and the ultrasonic wave for controlling and receiving energy converter connects
Receiving end is in the reception point coordinates；
It controls the excitation energy converter and emits the first ultrasonic signal to seismic physical model；
Control and receive the second ultrasonic signal that energy converter receives seismic physical model reflection；
Acquisition time information, formation first from second ultrasonic signal with pre-set sampling interval and sampling number
Discrete-time series；
First discrete-time series are corrected, the second discrete-time series are generated；
Seismic physical model experimental simulation data are generated according to second discrete-time series of many experiments；
First discrete-time series are corrected, the second discrete-time series are generated, including：
According to the first ultrasonic wave hourage is poor, the second ultrasonic wave hourage difference and the sampling interval determine that a correction is joined
Number；The correction parameter is：Wherein, dt is the sampling interval；It indicatesValue using rounding up mode round numbers；
According to first discrete-time series and the correction parameter, second discrete-time series are generated；Described second
Discrete-time series are：
Wherein, si' (j) is the discrete time value of j-th of sampled point of the second discrete-time series of ith experiment；si(j+k)
For the discrete time value of+k sampled points of jth of the first discrete-time series of ith experiment；M is the sampling number.
2. the analog data acquisition method of seismic physical model experimental system according to claim 1, which is characterized in that also
Including：
It determines first altitude data on the seismic physical model surface at the excitation point coordinates, and determines the reception point coordinates
Second altitude data on the seismic physical model surface at place；
Determine the third altitude data of current liquid plane.
3. the analog data acquisition method of seismic physical model experimental system according to claim 2, which is characterized in that also
Including：
Determine spread speed of the current ultrasonic signal in the liquid of liquid slot device.
4. the analog data acquisition method of seismic physical model experimental system according to claim 3, which is characterized in that also
Including：
According to the propagation speed of first altitude data, third altitude data and ultrasonic signal in the liquid of liquid slot device
Degree determines first caused by the ultrasonic wave transmitting terminal to the liquid level between seismic physical model surface of current excitation energy converter
Ultrasonic wave hourage is poor；
The first ultrasonic wave hourage difference is：Wherein, h0For the third altitude data；v0
For spread speed of the ultrasonic signal in the liquid of liquid slot device；(sxi,syi) it is that the shot point that current ith is tested is sat
Mark；For the first altitude data of ith experiment.
5. the analog data acquisition method of seismic physical model experimental system according to claim 4, which is characterized in that also
Including：
According to the propagation speed of second altitude data, third altitude data and ultrasonic signal in the liquid of liquid slot device
Degree determines second caused by the ultrasonic wave receiving terminal to the liquid level between seismic physical model surface of current reception energy converter
Ultrasonic wave hourage is poor；
The second ultrasonic wave hourage difference is：Wherein, (rxi,ryi) it is that current ith is real
The reception point coordinates tested；For second altitude data of ith experiment.
6. a kind of analog data acquisition device of seismic physical model experimental system, which is characterized in that be applied to a kind of earthquake object
Model experimental systems are managed, including：Seismic physical model, excitation energy converter, receives energy converter and liquid at analog acquisition control system
The bottom surface of slot device, the seismic physical model is plane, and the seismic physical model is placed in the liquid filled with liquid
In body slot device；Fluid level in the liquid slot device is higher than the seismic physical model；It the excitation energy converter and connects
It receives energy converter to completely attach to the fluid level, and contact plane is identical as the fluid level height；The excitation transducing
Device and reception energy converter are connect with the analog acquisition control system；
The excitation energy converter, for emitting the first ultrasonic signal to the seismic physical model；
The reception energy converter, the second ultrasonic signal for receiving the seismic physical model reflection；
The analog acquisition control system, the ultrasonic wave transmitting terminal for controlling excitation energy converter are in pre-set shot point
Coordinate, and the ultrasonic wave receiving terminal for controlling and receiving energy converter is in pre-set reception point coordinates, and it is ultrasonic from described second
Acquisition time information in wave signal forms the first discrete-time series；
Liquid in the liquid slot device is the water of a pre-set constant temperature；
Described device includes：
Establishment of coordinate system unit, for establishing plane right-angle coordinate in the horizontal direction；
Coordinate information receiving unit is tested, for receiving the experiment coordinate information once tested, the experiment coordinate information includes
Excitation point coordinates on fluid level and reception point coordinates；
Transducer position control unit, the ultrasonic wave transmitting terminal for controlling excitation energy converter are in the excitation point coordinates, and
The ultrasonic wave receiving terminal for controlling and receiving energy converter is in the reception point coordinates；
Ultrasonic signal emission controlling unit emits the first ultrasonic wave for controlling the excitation energy converter to seismic physical model
Signal；
Ultrasound signal receipt control unit receives the second ultrasonic wave of seismic physical model reflection for controlling and receiving energy converter
Signal；
First discrete-time series generation unit, for pre-set sampling interval and sampling number from second ultrasound
Acquisition time information in wave signal forms the first discrete-time series；
Unit is corrected, for being corrected to first discrete-time series, generates the second discrete-time series；
Seismic physical model experimental simulation data generating unit, for being given birth to according to second discrete-time series of many experiments
At seismic physical model experimental simulation data；
The correction unit, including：
Correction parameter determining module, for according to the first ultrasonic wave hourage is poor, the second ultrasonic wave hourage is poor and described
Sampling interval determines a correction parameter；The correction parameter is：Wherein, dt is between the sampling
Every；It indicatesValue using rounding up mode round numbers；
Second discrete-time series generation module, for according to first discrete-time series and the correction parameter, generating
Second discrete-time series；Second discrete-time series are：
Wherein, si' (j) is the discrete time value of j-th of sampled point of the second discrete-time series of ith experiment；si(j+k)
For the discrete time value of+k sampled points of jth of the first discrete-time series of ith experiment；M is the sampling number.
7. the analog data acquisition device of seismic physical model experimental system according to claim 6, which is characterized in that also
Including：
Altitude data determination unit, the first high number of passes for determining the seismic physical model surface at the excitation point coordinates
According to determining second altitude data on the seismic physical model surface at the reception point coordinates, and determine current liquid plane
Third altitude data.
8. the analog data acquisition device of seismic physical model experimental system according to claim 7, which is characterized in that also
Including：
Spread speed determination unit, for determining spread speed of the current ultrasonic signal in the liquid of liquid slot device.
9. the analog data acquisition device of seismic physical model experimental system according to claim 8, which is characterized in that also
Including：
First ultrasonic wave hourage difference determination unit, for according to first altitude data, third altitude data and ultrasound
Spread speed of the wave signal in the liquid of liquid slot device determines the ultrasonic wave transmitting terminal of current excitation energy converter to earthquake
First ultrasonic wave hourage caused by liquid level between physical model surface is poor；
The first ultrasonic wave hourage difference is：Wherein, h0For the third altitude data；v0
For spread speed of the ultrasonic signal in the liquid of liquid slot device；(sxi,syi) it is that the shot point that current ith is tested is sat
Mark；For the first altitude data of ith experiment.
10. the analog data acquisition device of seismic physical model experimental system according to claim 9, which is characterized in that
Further include：
Second ultrasonic wave hourage difference determination unit, for according to second altitude data, third altitude data and ultrasound
Spread speed of the wave signal in the liquid of liquid slot device determines the current ultrasonic wave receiving terminal for receiving energy converter to earthquake
Second ultrasonic wave hourage caused by liquid level between physical model surface is poor；
The second ultrasonic wave hourage difference is：Wherein, (rxi,ryi) it is that current ith is real
The reception point coordinates tested；For second altitude data of ith experiment.
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| CN106772581A (en) * | 2016-12-13 | 2017-05-31 | 西京学院 | A kind of three-dimensional relief surface physical analogy acquisition method based on reconfiguration technique |
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