CN106526659B - Array electrochemistry feedback seismograph - Google Patents
Array electrochemistry feedback seismograph Download PDFInfo
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- CN106526659B CN106526659B CN201610882711.5A CN201610882711A CN106526659B CN 106526659 B CN106526659 B CN 106526659B CN 201610882711 A CN201610882711 A CN 201610882711A CN 106526659 B CN106526659 B CN 106526659B
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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
- G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
- G01V1/18—Receiving elements, e.g. seismometer, geophone or torque detectors, for localised single point measurements
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Abstract
The present invention relates to a kind of array electrochemistry feedback seismographs, belong to seismological observation field.It is made of the electrochemistry transducing unit of multiple planar arrays including electrochemistry transducer arrays, multiple flow passages cavity, sensitive liquid, elastic sealing film, circuit system and feedback motor, the electrochemistry transducer arrays；There are multiple runners corresponding with electrochemistry transducer arrays in the multiple flow passages cavity；The circuit system includes detection circuit, computing circuit and control circuit；The feedback motor connects with the output of control circuit, and force-feedback control is carried out to seismometer.Three orthogonal simple components translations can be measured simultaneously based on a kind of array electrochemistry feedback seismograph proposed by the present invention and two components rotate seismic signal, and rotation dip correction has been carried out to translation signal.
Description
Technical field
The present invention relates to seismological observation field, more particularly to a kind of array electrochemistry feedback seismograph, for natively
Shake observation.
Background technology
Electrochemistry seismometer is a kind of earthquake sensor that last decade grows up, using liquid as inertia matter
Body is measured, and movable information of the liquid in runner is detected to characterize external earthquake motion by electrochemical electrode.It is compared to biography
It unites solid-state coasting body seismometer, it is excellent that liquid coasting body seismometer not only has that gain factor is big, high sensitivity, low frequency characteristic are good etc.
Point, also have work inclination angle range is big, Sensitive Apparatus hardly by electromagnetic interference, impact resistance it is strong, without mechanical noise, carry
Or without characteristics such as solution/lock inertia pendulums during use.
Electrochemistry earthquake score is translation component and rotative component two types seismometer, and Fig. 1, Fig. 2 are electrochemistry earthquake
The principle schematic of meter, wherein Fig. 1 is translation component, and Fig. 2 is rotative component.Four inert metal electrode B are placed on and are full of
In the sensitive liquid runner of Reversible redox reaction, separated by porous insulation net A between electrode, sensitive liquid can be in pipeline
Middle free movement.Under the effect of DC current by a small margin, the ion concentration gradient in liquid can be formed between anodic-cathodic.When quick
Liquid is felt under the action of external shock when opposite electrode surfaces movement, and moving proportional extra current to sensitive liquid will
Electrode is flowed to, the extra current is detected, extraneous speed or the size of acceleration can be obtained.Translation component is with rotative component
The both ends that the structure difference of shake meter is mainly reflected in translation component runner are sealed using rubber elastic membrane, and rotative component then uses
Closed annular channel.The assembly structure diagram of existing translation electrochemistry feedback seismograph measuring unit, by inert electrode and
The electrochemical transducer of porous separation net composition is the core devices of entire electrochemistry seismometer, and electrochemical transducer is vertically arranged in
Inside sensitive liquid runner, runner both ends are sealed with definite shape rubber elastic membrane, and sensitive liquid can move in runner.Electrification
It learns feedback seismograph and introduces dynamic balance feedback control technology, the frequency bandwidth and dynamic range of expansible electrochemistry seismometer,
Fig. 3 is the system control process figure of existing electrochemistry feedback seismograph.Wherein,H 1It is liquid velocity to the transmission letter of ground speed
Number；H 2Amplify transmission function of the voltage to liquid motion speed for electrochemistry transducing,H 6For the transmission letter of translation output feedback element
Number.The feedback function of rational designH 6The output voltage of seismometer can be made to be proportional to the movement velocity on ground.
A large amount of seimic disaster census and result of study show that earthquake motion is a kind of ground motion of various dimensions, include not only three flat
Dynamic component also includes three rotative components, and the rotative component of earthquake motion can even become to the main of some building destruction sometimes
The torque failure of clock tower when factor, such as Japan's Shonai earthquakes in 1894；Side's point of 20m high in India's Assam earthquakes in 1897
The torque failure of upright stone tablet；In San-Fernando earthquakes in 1971, earthquake motion level and rotation coupling result in collapsing for bridge
It collapses；Pacoima dams place in Northridge earthquakes in 1994 is tilted up in seismic process along northeastward
3.1°.The final inclination angle in ground near Chi Chi earthquake focus in 1999 is 0.8 °.Skill is observed as earthquake motion is translatable
The rotative component observation of the continuous maturation of art, earthquake motion is gradually taken seriously.In view of the importance of rotative component, Europe incited somebody to action
Earthquake motion rotation load is included in the design specification of building《EC8.1.EN 1998-1 Eurocode8》With《EC8.6.EN
1998-6 Eurocode8》。
Currently, can record simultaneously there are mainly two types of the methods of earthquake translation and rotation information：One is two point difference methods, pass through
More seismometer record translation components are arranged in small range, are exactly with the translational velocity of point-to-point transmission difference divided by distance between two points
Corresponding tarnsition velocity；Another kind is to lay translation and rotation seismometer simultaneously.The maximum of two kinds of earthquake information recording methods is asked
Topic is to need while using multiple or two kinds of seismometers, causes the seismometer of earthquake monitoring point to purchase and lay construction cost and turns over
Times.
What is more important, current translation component seismometer product can mix rotative component information, Fig. 4 signals in the measurements
Horizontally rotate the influence to the earthquake signal measurement that is vertically translatable.After angular deflection occurs for the seismometer that is translatable, the axial direction of mass body
Weight component changes, and suffered recoil of spring power and weight component are uneven, so cause mass body generate one with
The relevant additional acceleration of rotational angle, the acceleration become making an uproar for translation seismic signal together with extraneous acceleration aliasing
Sound source.
Invention content
The purpose of the present invention is to provide a kind of array electrochemistry feedback seismographs, solve on of the existing technology
State problem.The present invention replaces single electrochemistry transducing unit, transducer arrays to be exported through circuit system using electrochemistry transducer arrays
Three orthogonal simple component translations and two components rotate seismic signal, and feedback motor is under the action of circuit system to earthquake
Meter carries out feedback force output, realizes index adjustment and the dip correction of seismometer translation signal.
The above-mentioned purpose of the present invention is achieved through the following technical solutions：
Array electrochemistry feedback seismograph, including electrochemistry transducer arrays 1, multiple flow passages cavity 2, sensitive liquid, elasticity
Diaphragm seal, circuit system and feedback motor, electrochemistry transducer arrays 1, multiple flow passages cavity 2 and elastic sealing film constitute closing chamber
Body, sensitive liquid are placed in inside the closed cavity, and electrochemistry transducer arrays 1 export three orthogonal lists through circuit system
Component is translatable and two components rotate seismic signal, and it is defeated that feedback motor carries out feedback force under the action of circuit system to seismometer
Go out, realizes index adjustment and the dip correction of seismometer translation signal.
The electrochemistry transducing unit that the electrochemistry transducer arrays 1 are arranged by more than one planar array forms, multithread
Runner corresponding with electrochemistry transducing unit is equipped in road cavity 2.
Multiple runners corresponding with electrochemistry transducer arrays 1 are equipped in the multiple flow passages cavity 2, runner both ends are each other
Connection, and sealed by elastic sealing film.
The circuit system includes the operation of the detection circuit, processing detection circuit output signal of electrochemistry transducer arrays
The control circuit that circuit, adjustment seismometer export.
The computing circuit includes carrying out adding sum-average arithmetic operation to obtain list to multiple signals that detection circuit exports
Component be translatable seismic signal output, to detection circuit output signal carry out make the difference divided by mutual distance operation is to obtain two components
Rotate seismic signal output；Two component turn signals are exported and carry out vector summation, integral to obtain the dip angle signal of seismometer.
The control circuit includes dynamic balance feedback control circuit and dip correction circuit, and feedback motor is anti-through dynamic balance
It presents control circuit and force-feedback control is carried out to extend the dynamic range and frequency bandwidth of seismometer to translation signal output；Feedback electricity
Machine carries out force-feedback control to correct the simple component translation signal of seismometer through dip correction circuit to seismometer dip angle signal.
The beneficial effects of the present invention are：, using electrochemistry transducer arrays replace single electrochemical cell, pass through multiple electricity
The signal-to-noise ratio of the translation signal of simple component can be improved in the sum-average arithmetic operation of chemical transducing unit detection circuit output signal；, adopt
Single electrochemical cell is replaced with electrochemistry transducer arrays, passes through the electrochemistry transducing unit detection circuit output to relative position
Signal make the difference divided by mutual distance operation can obtain the rotation seismic signal output of two components simultaneously；, by earthquake
The dip correction of force-feedback control seismic signal, it can be achieved that simple component is translatable of dip angle signal；, integrated translation seismometer and turn
Dynamic seismometer, is greatly lowered the cost and occupied space of the monitoring of Full wave shape earthquake information.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and is constituted part of this application, this hair
Bright illustrative example and its explanation is not constituted improper limitations of the present invention for explaining the present invention.
Fig. 1 is the principle schematic of electrochemistry seismometer（Translation component）；
Fig. 2 is the principle schematic of electrochemistry seismometer（Rotative component）；
Fig. 3 is the system control process figure of electrochemistry feedback seismograph；
Fig. 4 is horizontally rotating for seismometer influences schematic diagram to the signal measurement that is vertically translatable；
Fig. 5 is that the array electrochemistry earthquake meter of the present invention measures the assembly structure diagram of unit；
Fig. 6 is the system control process figure of the array electrochemistry seismometer of the present invention；
Fig. 7 to Figure 11 is the array electrochemistry feedback seismograph circuit theory schematic diagram of the present invention.
Specific implementation mode
The detailed content and its specific implementation mode further illustrated the present invention below in conjunction with the accompanying drawings.
Array electrochemistry feedback seismograph shown in Figure 5, of the invention, electrochemistry transducer arrays 1 are by four electrifications
Transducing unit composition is learned, electrochemistry transducing unit is square to arrange the axis for being symmetrically distributed in multiple flow passages cavity 2, multithread
Four flow channel for liquids in road cavity 2 correspond to each other with four electrochemistry transducing units, constitute four independent electrochemical sensings
Array, runner both ends communicate with each other, and are sealed by elastic sealing film, the electrodes of electrochemistry transducer arrays 1 after lead is drawn with
Circuit system connects.
Array electrochemistry feedback seismograph system control process figure shown in Figure 6, of the invention, whereinH 1、H 2AndH 6It is identical as the existing corresponding position transmission function of electrochemistry feedback seismograph,H 3、H 4AndH 5Function is as follows：
H 3Operation function is rotated for simple component translation and two components：
；
H 4For velocity of rotation vector summation integral function：
H 5For the feedback transfer function of rotational angle output：
；
Wherein,rFor two transducing cell spacings of relative position；t 1、t 2The beginning of integral function and end time；mFor matter
Measure the quality of body；KTo feed back the force constant of motor.
Fig. 7 to Figure 11 shows array electrochemistry feedback seismograph circuit theory schematic diagram of the present invention.Wherein,
Fig. 7 is the detection circuit schematic diagram of electrochemistry transducing unit, and two trans-impedance amplifiers switch to electrode current signal
Voltage amplification signal, the Micro-seismic Signals output detected as seismometer after difference amplifier amplifies；
Fig. 8 is that simple component translation signal realizes circuit diagram, flat as summation using four transducing element output signals
Four tunnel input signals of equal computing circuit carry out sum-average arithmetic fortune by reverse phase adder and phase convertor to each transducing cell signal
It calculates to obtain the simple component translation signal of array electrochemistry feedback seismograph；
Fig. 9 is that simple component turn signal realizes circuit diagram, using two-stage differential amplifying circuit to the electricity of relative position
Chemical transducing cell signal carries out subtraction to obtain turn signal, wherein the cell signal conduct of the two of relative position transducing
The two-way input signal of differential amplifier circuit determines each resistance value according to the distance between two transducing units；
Figure 10 is gyration vector summation integrating circuit schematic diagram, using two component turn signals as summation integrating circuit
Two-way input signal, each resistance value, which assigns corresponding proportionality coefficient, multiplier and integrator and carries out vector to turn signal, to be asked
With integral operation to obtain the rotational angle of seismometer；
Figure 11 is dynamic balance feedback control circuit schematic diagram, using rotational angle signal as calculating cosine function circuit
Input signal obtains the feedback signal of turn signal output by scaling circuit, and translation signal is by PID control circuit
The feedback signal that output is obtained with turn signal is as the translation signal after correction, voltage outputWith feedback motor phase
Even, motor power output is feedback equalization power.
The foregoing is merely the preferred embodiments of the present invention, are not intended to restrict the invention, for the technology of this field
For personnel, the invention may be variously modified and varied.All any modification, equivalent substitution, improvement and etc. made for the present invention,
It should all be included in the protection scope of the present invention.
Claims (3)
1. a kind of array electrochemistry feedback seismograph, including electrochemistry transducer arrays（1）, multiple flow passages cavity（2）, sensitive fluid
Body, elastic sealing film, circuit system and feedback motor, it is characterised in that：Electrochemistry transducer arrays（1）, multiple flow passages cavity（2）And
Elastic sealing film constitutes closed cavity, and sensitive liquid is placed in inside the closed cavity, electrochemistry transducer arrays（1）Through circuit system
The orthogonal simple component translation of system output three and two components rotate seismic signal, and feedback motor is under the action of circuit system
Feedback force output is carried out to seismometer, realizes index adjustment and the dip correction of seismometer translation signal；
The operation electricity of detection circuit of the circuit system comprising electrochemistry transducer arrays, processing detection circuit output signal
The control circuit that road, adjustment seismometer export；
The computing circuit includes carrying out adding sum-average arithmetic operation to obtain simple component to multiple signals that detection circuit exports
Be translatable seismic signal output, to detection circuit output signal carry out make the difference divided by mutual distance operation with obtain two components rotation
Seismic signal exports；Two component turn signals are exported and carry out vector summation, integral to obtain the dip angle signal of seismometer；
The control circuit includes dynamic balance feedback control circuit and dip correction circuit, and feedback motor is fed back through dynamic balance to be controlled
Circuit processed carries out force-feedback control to extend the dynamic range and frequency bandwidth of seismometer to translation signal output；Feed back motor warp
Dip correction circuit carries out force-feedback control to correct the simple component translation signal of seismometer to seismometer dip angle signal；
H 1、H 2AndH 6It is identical as the existing corresponding position transmission function of electrochemistry feedback seismograph,H 3、H 4AndH 5Function is as follows：
H 3Operation function is rotated for simple component translation and two components：
；
H 4For velocity of rotation vector summation integral function：
H 5For the feedback transfer function of rotational angle output：
；
Wherein,rFor two transducing cell spacings of relative position；t 1、t 2The beginning of integral function and end time；mFor mass body
Quality；KTo feed back the force constant of motor；
Using rotational angle signal as the input signal for calculating cosine function circuit, turn signal is obtained by scaling circuit
The feedback signal of output, translation signal are used as with the feedback signal that turn signal obtains by the output of PID control circuit and correct
Translation signal afterwards, voltage outputIt is connected with feedback motor, motor power output is feedback equalization power.
2. array electrochemistry feedback seismograph according to claim 1, it is characterised in that：The electrochemistry transducing battle array
Row（1）The electrochemistry transducing unit arranged by more than one planar array forms, multiple flow passages cavity（2）Interior be equipped with is changed with electrochemistry
It can the corresponding runner of unit.
3. array electrochemistry feedback seismograph according to claim 1, it is characterised in that：The multiple flow passages cavity
（2）It is interior to be equipped with and electrochemistry transducer arrays（1）Corresponding multiple runners, runner both ends communicate with each other, and pass through elastic packing
Film seals.
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| CN106932818B (en) * | 2017-05-09 | 2023-02-17 | 中国地震局工程力学研究所 | Seismograph for detecting rotary earthquake motion |
| CN107402646A (en) * | 2017-07-06 | 2017-11-28 | 深圳市华星光电技术有限公司 | Act perception device, the method and VR handles of sensed activation |
| CN108562935B (en) * | 2018-07-03 | 2023-10-10 | 吉林大学 | Broadband electrochemical seismometer suspension system |
| CN110068858B (en) * | 2019-05-15 | 2020-12-18 | 中国科学院电子学研究所 | Triaxial integrated electrochemical geophone based on MEMS |
| CN113790707B (en) * | 2021-09-13 | 2022-08-23 | 吉林大学 | Thermal convection type electrochemical tilt angle sensor |
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| US8263426B2 (en) * | 2008-12-03 | 2012-09-11 | Electronics And Telecommunications Research Institute | High-sensitivity z-axis vibration sensor and method of fabricating the same |
| CN103048680B (en) * | 2011-10-13 | 2015-06-10 | 中国科学院电子学研究所 | Electrochemical seism radiodetector based on MEMS (Micro-electromechanical Systems) technology |
| CN103235337B (en) * | 2013-05-21 | 2015-05-06 | 中国科学院电子学研究所 | Electrochemical seismic detector based on mechanical seal and packaging method thereof |
| CN105425282A (en) * | 2015-11-10 | 2016-03-23 | 中国科学院电子学研究所 | Electrochemical geophone based on force balance feedback |
| CN206096486U (en) * | 2016-10-10 | 2017-04-12 | 吉林大学 | Array electrochemistry feedback seismometer |
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