CN101694973B - Portable giant magnetostriction seismic source device - Google Patents
Portable giant magnetostriction seismic source device Download PDFInfo
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- CN101694973B CN101694973B CN2009100632744A CN200910063274A CN101694973B CN 101694973 B CN101694973 B CN 101694973B CN 2009100632744 A CN2009100632744 A CN 2009100632744A CN 200910063274 A CN200910063274 A CN 200910063274A CN 101694973 B CN101694973 B CN 101694973B
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Abstract
The invention discloses a portable giant magnetostriction seismic source device comprising an impact output bar, a guidance protection head, a compressive pre-stress regulation pressure board, a giant magnetostrictive rod, a drive coil, an impact control circuit, a power supply module and an external shell, wherein the impact control circuit is connected with the drive coil and the power supply module; the impact control circuit and the power supply module are arranged in the external shell; the impact output bar is sequentially connected to the guidance protection head, the external shell and a back cap; the impact output bar is fixed by the guidance protection head which has a cone-shape circular table structure, the bottom surface of the guidance protection head is connected to one end of the external shell, the giant magnetostrictive rod is connected to the impact output bar through a spiral filament opening; the impact control circuit is arranged in the middle part of a cavity and is connected to the drive coil and the power supply module; the power supply module is arranged at the back end of the cavity and is connected with the drive coil and the impact control circuit. The invention enhances the portability of the device, reduces the charging time, strengthens the quality of seismic source signals, improves the efficiency of detection work and is convenient for operating and applying on site.
Description
Technical field
The present invention relates to the engineering detecting instrument field, more specifically relate to a kind of portable giant magnetostriction seismic source device, be applicable to the instantaneous physical shock pulse of output, for engineerings such as anchor pole detector, sonic detection appearance provide stress wave, ultrasound wave focus.
Background technology
(Giant Magnetostrictive Material is to utilize the magnetostrictive effect of REE and metal to form a kind of new sensitive material that compound is processed GMM) to giant magnetostrictive material, has the mutual translation function of electromagnetic energy and mechanical energy or acoustic energy.Rare earth ultra-magnetostriction material has that strain is big, thrust is big, electromechanical coupling factor is high, energy conversion efficiency is high, good stability, high reliability features, can be used for ultraprecise processing, robot, vibration and noise reducing, MEMS, micro control system, linear motor, fuel injection system, micropump, underwater acoustic transducer, electroacoustics transducer fields such as (audio frequency and ultrasonic transducers).
In the engineering detecting field, giant magnetostrictive material often is applied to prepare the signal generation apparatus of checkout equipment.For example, when adopting the stress wave reflectometry to detect the anchor pole quality, the elastic stress wave signal need be provided.Elastic stress wave is propagated and to anchor pole ambient radiation energy along anchor pole, and when around the anchor pole or bottom medium when changing, for example mortar is not full or empty slurry etc., will produce reflected signal.The reception detector arrangement (sensor) of checkout equipment detects elastic wave propagation and reflection echo signal.Depend on the energy intensity of reflected signal and time of arrival around the anchor pole or the grouting situation of end.Through detected signal waveform is handled and analyzed, can confirm the total quality of rock-bolt length and grouting.
And for example, when adopting sonic method to detect concrete quality, need to be provided by transmitting transducer the acoustic signals of certain frequency, this sound wave is propagated in concrete medium, is received at another point by receiving transducer.Checkout equipment is arranged the emission measuring point and receives measuring point that the pointwise emission also receives sound wave with certain spacing along certain direction.Because sound wave runs into the concrete medium defective and can produce reflection, transmission, diffraction; Through the parameters,acoustic and the waveform character that receive elastic wave are handled and are analyzed; Just pile concrete defects property, position, scope be can confirm, thereby continuity, integrality and the homogeneity situation of pile concrete inferred.
Above-mentioned anchor pole detects with elastic stress wave focus and concrete detection all can adopt the giant magnetostrictive material preparation with the sound wave focus; Through changing the giant magnetostrictive material surrounding magnetic field physical dimension of giant magnetostrictive material is changed (generation strain), thereby the output mechanical vibration form the focus that impulses.
Magnetic field around the giant magnetostrictive material adopts the hot-wire coil electromagnetic induction to produce usually.Along the writhing number circle coil of should changing direction of giant magnetostrictive material, by the electrical current of control circuit control coil.According to Maxwell's Theory of Electromagnetic Field, size, direction through the electric current in the control hot-wire coil change electric current, the magnetic field that will change.Through control circuit control giant magnetostrictive material flexible strain takes place in the magnetic field that changes, a strain can provide the stress wave focus, and the vibration strain of certain frequency can form the sound wave focus.
The giant magnetostriction seismic source device of prior art is formed by impacting take-off lever, control circuit, supply module three parts usually, the giant magnetostriction seismic source device that relates to like patent No. ZL 200620099590.9 " a kind of ultra-magnetic telescopic drive unit ", the patent No. 95119676.6 " exciter apparatus ".For example, when this giant magnetostriction seismic source device was applied to the anchor pole detector, this seismic source apparatus need provide once strong and impulse to produce elastic stress wave.
One of ordinary skill in the art will appreciate that; The speed of giant magnetostrictive material generation strain is directly proportional with the speed of its change of magnetic field strength on every side; And the magnetic field intensity around the giant magnetostrictive material is directly proportional with the electrical current of the hot-wire coil of the winding of should changing direction along it; Thereby if will make giant magnetostriction seismic source device inspire strong impulsing, then must make the electric current of the hot-wire coil that twines on the giant magnetostrictive material rate that has greatly changed.And the mode that the giant magnetostriction seismic source device of the anchor pole detector of prior art adopts 350V left and right sides high pressure to spark usually provides transient current, thus excitation giant magnetostrictive material generation instantankeous strain.Yet there is certain defective in prior art.
At first, because the giant magnetostriction seismic source device of prior art charges high pressure limited (only having about 350V), discharge time limited (controlled circuit restriction), cause the current changing rate that offers hot-wire coil limited.
Secondly; Because the giant magnetostriction seismic source device of prior art is limited discharge time, and need make the electric current of hot-wire coil that certain rate of change is arranged, and then bigger electric current must be provided in limited discharge time; Thereby the energy that flexible at every turn strain needs is bigger; Therefore jumbo rechargeable battery and high-voltage capacitance need be provided, because the battery volume is bigger, supply module must separate with impact take-off lever and control circuit usually.Simultaneously, owing to adopted high capacity, high voltage bearing electrochemical capacitor, and the common volume of these electric capacity is bigger, therefore causes the anchor pole detector seismic source apparatus volume of prior art bigger.
In addition; Because the dynamics of the instantaneous physical shock pulse of giant magnetostriction seismic source device output is directly proportional with its impact take-off lever quality and acceleration; In the prior art; Impact the balancing weight of the certain mass that material that the take-off lever rear portion is equipped with greater densities such as single solid steel for example usually processes, with the dynamics of the instantaneous physical shock pulse that guarantees giant magnetostriction seismic source device output.On the one hand, the metal weights piece has increased the cost of manufacture of giant magnetostriction seismic source device; On the other hand, the space of impacting take-off lever is limited, does not just have redundant space installation and control circuit after being equipped with solid balancing weight, so the impact take-off lever of prior art also separates with control circuit usually, links to each other with control circuit through cable.Connect giant magnetostriction seismic source device impact take-off lever, control circuit, supply module three parts to control cable long and weigh, operation labour intensity is big, and it is also comparatively inconvenient to operate.
In addition; Usually be threaded through secondary between the impact take-off lever of the seismic source apparatus of prior art and the giant magnetostrictive material; And it is fixing as a whole that head is protected in the impact take-off lever of the seismic source apparatus of some prior art and guiding, and the instantaneous mechanical pulsing energy that makes seismic source apparatus export partly is dissipated to the junction and head is protected in guiding, because inertia; The pulse width that causes exporting mechanical pulsing becomes big, is unfavorable for producing shock effect.
In sum; The anchor pole detector of prior art is limited with charging high pressure, the discharge time of giant magnetostriction seismic source device; Impact take-off lever, control circuit, supply module three parts because it is furnished with balancing weight and jumbo rechargeable battery and high-voltage capacitance and must separately designs; Its secondary is threaded and guides and protects head and make output mechanical pulsing energy dissipation, and these disadvantages all need be improved.
Summary of the invention
The objective of the invention is to be to provide a kind of portable giant magnetostriction seismic source device; To impact take-off lever, control circuit, battery three and be integrated in the device, and adopt new type control circuit, not only improve the portability of device; And improved the electric current rate of change of the hot-wire coil that is used for producing magnetic field; Strengthen focus impulse dynamics and output shock pulse signal quality, improved testing efficient, be convenient to execute-in-place and use.
To achieve these goals, the present invention adopts following technical measures:
A kind of portable giant magnetostriction seismic source device of the present invention; This seismic source apparatus comprises that impacting take-off lever (can be prepared by metal material; Those of ordinary skill in the art does not pay any creative work and all can prepare), the guiding protect the head (can prepare by metal material; Those of ordinary skill in the art does not pay any creative work and all can prepare), compressive pre-stress regulates pressing plate and (can be prepared by metal material; Those of ordinary skill in the art does not pay any creative work and all can prepare), giant magnetostrictive material rod (GMM rod; Can prepare by giant magnetostrictive material such as Terfenol-D), drive coil (by the coiling of 2mm enameled wire), shell (can prepare), impact control circuit (the present invention's original creation), supply module (those of ordinary skills all can prepare according to prior art utilization electronic component commonly used), bonnet (can prepare) by metal material by metal material; And tape light action button (the WH-09 type button of Wuhan China and mechanical & electrical technology company limited); It is characterized in that the portable impact control circuit of said the present invention original creation and supply module be integrated to be assemblied in the shell of seismic source apparatus, is convenient to on-the-spot test and operates.Wherein impact take-off lever, guiding is protected head, shell, bonnet and all can be prepared by metal material, those of ordinary skills all can prepare according to accompanying drawing and hereinafter embodiment utilization electronic component commonly used.The GMM rod can be processed by the alloy Tb-Dy-Fe terbium dysprosium ferrum magnetostriction alloy material (like Terfenol-D) of iron and rare earth metal Tb, dysprosium, for example the GMM rod produced of Beijing Iron and Steel Research Geueral Inst research and development.Wherein the structure of the portable impact control circuit of the present invention's original creation and supply module will be in following detailed description.
Giant magnetostriction seismic source device of the present invention is straight ejector half giant magnetostriction seismic source, and GMM rod wherein is much bigger along the strain that radially takes place of shell along the strain ratio of the axial generation of shell.Therefore, after the magnetic excitation generation strain that the GMM rod is changed, the impact take-off lever that just can promote to contact with it protects an axial stretching along guiding and moves.
It is characterized in that; Described impact control circuit links to each other with drive coil and supply module; Impact in the integrated shell that is contained in seismic source apparatus of control circuit and supply module, be convenient to the on-the-spot test operation, the impact take-off lever protects head, shell, bonnet with guiding successively and is connected.It is fixing that the impact take-off lever protects head through guiding, can protect head along guiding and freely move back and forth in the axial of shell.Guiding is protected head for the taper frustum cone structure, and the bottom surface that head is protected in guiding is connected an end of shell, and the end face that head is protected in guiding has and impacts the identical hole of take-off lever external diameter size, impact take-off lever just can be in the end face hole that guiding is protected along enclosure axis to moving back and forth.Described compressive pre-stress is regulated pressing plate and is comprised taenidium mouth and supporting nut; Said giant magnetostrictive rod is connected through said taenidium mouth with said impact take-off lever; Rotate said nut and can adjust the compressive pre-stress size that said compressive pre-stress is regulated the pressing plate generation, said impact take-off lever is directly driven by said GMM rod.Socket is a multipurpose socket, is connected with supply module in the shell, and the action button of receptacle accepts tape light patches charger when being full of electricity and using when finishing using the back charging.When the action button of the said tape light of receptacle accepts; Said action button is connected with supply module; Be used to show the ready situation of the rechargeable energy that impacts control circuit; Encourage requirement when rechargeable energy satisfies, pilot lamp is bright, and this moment, the push button can produce one-time mechanical pulse output.
Giant magnetostriction seismic source device shell cavity inner packet of the present invention is drawn together giant magnetostrictive rod (GMM rod), drive coil, compressive pre-stress adjusting pressing plate, control circuit and supply module.Wherein GMM rod, drive coil, compressive pre-stress are regulated pressing plate and are placed crust of the device cavity front end; The GMM rod that links to each other with the impact take-off lever places cavity front end center position; The coaxial winding of its external diameter driven line circle is surrounded, and makes the GMM rod be positioned at the central authorities of drive coil.Giant magnetostrictive rod places the cavity middle part with impacting control circuit, and the supply module that is connected with drive coil and impact control circuit places the cavity rear end.The cavity front end of giant magnetostriction seismic source device, cavity middle part and cavity rear end are spaced from each other through the fixed card slot of outer casing inner wall, to keep its Stability Analysis of Structures.
Impact take-off lever and keep being connected, and blocked by compressive pre-stress adjusting pressing plate and to compress with giant magnetostrictive rod.Compressive pre-stress is regulated pressing plate and can be made up of dish spring spring and nut combinations, and the rotation nut can be adjusted the size of compressive pre-stress.Input current in the drive coil is controlled to change, and through the input current in the controlling and driving coil, the residing magnetic field of may command GMM rod is strong and weak, controls the retractable variable of GMM rod thus, and the output displacement and the power output of impacting take-off lever.
The impact control circuit and the drive coil of cavity front end, the supply module of cavity rear end that are positioned at seismic source apparatus shell cavity middle part are electrically connected, and in order to the supply current in the controlling and driving coil, comprise size of current and direction.During work, the action button of tape light is connected with control circuit and supply module through socket, and GMM rod, impact take-off lever, shell and bonnet form closed magnetic circuit.Action button closure moment when tape light, produce a transition pulse signal in the control circuit.In response to this ringing pulse signal, the electric current pulsing formula transition in the drive coil will produce ringing pulse magnetic field.Under the ringing pulse the action of a magnetic field that drive coil produces, place drive coil GMM rod wherein flexible deformation to take place by shock response.The GMM rod promotes and the impact take-off lever generation immediate movement that contacts immediately, produces instantaneous physical shock, and the elastic stress wave focus just can be provided one time thus.
Supply module places the cavity rear end of giant magnetostriction seismic source device, and supply module comprises charging circuit, battery, feed circuit, and wherein charging circuit and feed circuit link to each other with socket.The present invention adopts the lithium battery power supply that volume is little, energy is big, therefore just can impact take-off lever, control circuit, battery three be integrated in the giant magnetostriction seismic source device, and structure is lightly compact, has improved portability greatly.Because giant magnetostriction seismic source device of the present invention adopts the low dc voltage of lithium battery to produce the high voltage excitation pulse, increase valid analysing range simultaneously, improved the antijamming capability of detection sensitivity and detection signal.In addition, being positioned at the impact control circuit at seismic source apparatus shell cavity middle part and the supply module of cavity rear end has certain quality, so they have also played balancing weight, the dynamics of assurance output physical shock pulse.When improving portability, also saved the cost of balancing weight in the prior art.
The design of giant magnetostriction seismic source device need be taken all factors into consideration many-sided factor, and its mechanical parameter of reasonable disposition and electromagnetic parameter are emphasis of the present invention.According to one of them embodiment of the present invention, the GMM rod can be processed by the alloy Tb-Dy-Fe terbium dysprosium ferrum magnetostriction alloy material (like Terfenol-D) of iron and rare earth metal Tb, dysprosium.The driving magnetic field intensity Hp that drive coil produces, compressive pre-stress regulate compressive pre-stress that pressing plate produces, and working temperature the performance of GMM rod is all had very big influence, be that the rational characterisitic parameter of GMM rod configuration must be confirmed suitable driving field intensity, compressive pre-stress and working temperature earlier.According to one of them embodiment of the present invention, giant magnetostriction seismic source device designs corresponding driving field intensity Hp and compressive pre-stress σ according to the family curve of magnetostriction materials Terfenol-D
y
One of them important innovations point of giant magnetostriction seismic source device of the present invention is that its compressive pre-stress of reasonable disposition is regulated pressing plate.Compressive pre-stress is regulated pressing plate and is linked to each other with the impact take-off lever.It is spring that the compressive pre-stress of traditional magnetostriction seismic source apparatus is regulated pressing plate, regulates compressive pre-stress through the nut location that compresses on the manual adjustments spring, and the spring wire sexual intercourse is not so good, and the compressive pre-stress that produces is less.And the compressive pre-stress of giant magnetostriction seismic source device of the present invention is regulated pressing plate employing high-quality dish spring, can adjust compressive pre-stress automatically according to the deadweight, the modes of emplacement that impact take-off lever and GMM rod.Its compressive pre-stress scope is between 6MPa and 8MPa.
The impact control circuit of giant magnetostriction seismic source device comprises high voltage direct current generator module and the high-voltage switch gear driver module that the conventional electrical element is built into.Trigger pulse is produced by the action button of front tape light, and trigger pulse is the pulse width control signal, transfers to the high-voltage switch gear driver module.Simultaneously, the high voltage direct current generator module also connects the high-voltage switch gear driver module.The output termination drive coil of high-voltage switch gear driver module, output current signal is to drive coil.The high-voltage switch gear driver module is according to the break-make of the start pulse signal control high voltage direct current generator module of the action button generation of tape light, and output ringing pulse electric current is to drive coil.Through the electric current in the controlling and driving coil, with the magnetic field intensity that the GMM rod is passed in control, drive the flexible of GMM rod, the impact take-off lever that promotes to be attached thereto produces displacement, thereby instantaneous physical shock takes place.
According to one of them embodiment of the present invention; Also being provided with holding circuit in the high voltage direct current generator module of giant magnetostriction seismic source device, the high-voltage switch gear driver module is used for when control circuit overcurrent, short circuit or skin temperature are overheated, protecting automatically; Breaking circuit makes it to quit work rapidly.Holding circuit can be according to prior art for preparing.For example, can adopt in the insurance fuse Access Control circuit to be prone to the position of overcurrent, or adopt comparer to add switching tube and build, also can adopt the protection chip of specialty to accomplish.
The DC voltage that the high voltage direct current generator module of impact control circuit utilizes lithium battery to provide boosts and produces high voltage excitation pulse electric current.The high voltage direct current generator module by transformer, triode, diode, transformer, and some conventional resistance, capacitor element form.The identical triode of a pair of parameter pair links to each other with the primary coil of corresponding base electrode resistance, transformer, constitutes multivibrator, makes to produce in the primary coil of transformer to exchange vibration, and wherein the energy storage time-delay element utilizes the inductance of the primary coil of transformer to realize.According to other different embodiment of the present invention, multivibrator also can be made up of 555 triggers or general gate circuit etc.
When the secondary coil number of turn of transformer is far longer than its number of primary turns, just output AC high-voltage signal of level coil secondarily.Transformer is level coil once in addition, and the circuit of its back is used for forming feedback according to the size of transformer secondary output coil output voltage, to stablize the ac high-voltage output of first secondary coil.Feedback bias voltage VADJ is produced by the circuit of second secondary coil output port of transformer back, be added in the primary coil certain a bit.High voltage direct current generator module of the present invention can produce the high voltage up to 1000V, utilizes the high voltage transient discharge, exportable ringing pulse electric current, and instantaneous deformation takes place in excitation GMM rod, output physical shock, and be different from traditional 220V low-voltage instantaneous discharge.
The ac high-voltage signal of the transformer secondary output coil output of high voltage direct current generator module is connected to the high-voltage switch gear driver module.The high-voltage switch gear driver module comprises the half-bridge rectification circuit that four diodes build, conventional RC filtering circuit, and on-off circuit.The high-voltage switch gear driver module is controlled to excite through the high speed turn-off of high-power vertical-channel isolated gate FET (VMOS) and is impacted control circuit generation pulse high current.In another embodiment, also can select for use more general power CMOS pipe to replace the VMOS pipe.
This impact control circuit has improved the sensitivity and the antijamming capability of giant magnetostriction seismic source device, satisfies the portability and the security requirement of device.Giant magnetostriction seismic source device of the present invention not only can be used in said anchor pole detector of preamble and the sonic detection appearance; Also can be used with elastic wave detection type equipment with the synchronous output interface of external trigger; Also can have the elastic wave checkout equipment that signal triggering or passage trigger and be used, also can customize upgrading parts such as infrared electro sync cap as required with inside.
Use a kind of method step of portable giant magnetostriction seismic source device to be:
A, charger is plugged socket, give lithium cell charging through supply module.
After B, charging finish, pull out charger, plug the action button of tape light.
C, wait for about 3 seconds after, press the action button of tape light, promptly exportable physical shock signal.
Persons skilled in the art are appreciated that; Giant magnetostriction seismic source of the present invention not only can be used for for the anchor pole detector stress wave focus being provided; Carry out the detection of rock-bolt length and saturation degree, advanced prediction detection; The emission acoustic wave transducer that can be the sonic detection appearance simultaneously provides the mechanical source excitation of required frequency, to form sound wave or ultrasound wave, carries out ground and concrete sound wave to wearing detection.Further, giant magnetostriction seismic source of the present invention provides the equipment of seismic source apparatus applicable to any needs.
Giant magnetostriction seismic source device of the present invention will impact take-off lever, control circuit, battery three and be integrated in the device; And the employing new type control circuit, not only improved the portability of installing, reduced the duration of charging; And strengthened the source signal quality, improved testing efficient.The giant magnetostriction seismic source that the present invention discloses compared with prior art has the following advantages: integrated design, and the power supply lithium battery all is integrated in the seismic source apparatus housing with the idle running circuit, has improved the reliability of seismic source apparatus work; Compressive pre-stress is regulated pressing plate and is adopted fine thread, makes that the adjusting compressive pre-stress is meticulousr, reaches maximum displacement and impulsive force output; The part that is threaded of shell adopts rubber seal and fluid sealant sealing, and control circuit adopts the casting glue sealing of epoxy resin, satisfies the requirement of waterproof, protection against the tide, mildew-resistant; Optimize physical construction, reduced the weight of focus, be easy to carry and field operation; The output energy of seismic source apparatus can carry out two other switchings of level of height through control end, to adapt to different excitation density demands.In addition, the portable giant magnetostriction seismic source device of the present invention's announcement has advantages such as emissive power is big, stable performance, energy conversion efficiency is high, penetration range is far away, the reception signal band is wide, good reproducibility, accurate timing, aftershock is short, detection sensitivity is high, the antijamming capability of detection signal is strong, easy to operate, advantages of small volume is light.
Experiment shows that the giant magnetostriction seismic source maximum instantaneous power that the present invention discloses can reach 10KW, 20KW, 40KW, 80KW, 100KW, 120KW, and output pulses can reach 100us; Emission voltage can reach 200V, 400V, 800V, 1600V; Aftershock is merely 400us; Detection range can reach about 20m, and can guarantee higher detection accuracy.Compared with prior art; Giant magnetostriction seismic source emission voltage of the present invention improves (being increased to more than the 1000V from 350V) greatly, under the situation that does not produce big electric current, has improved the electric current instantaneous transition rate of hot-wire coil; The hidden danger of having avoided big electric current impact control circuit to cause again; Its impact take-off lever directly links to each other with the GMM rod, and guiding is protected head and do not participated in transmitting energy, has reduced the energy loss of mechanical pulsing.Can know, the present invention improve portable, reduce cost, improve and obtained better effects aspect the quality of output signals.
Description of drawings
Fig. 1 is the perspective view of portable giant magnetostriction seismic source device 100 according to an embodiment of the invention.Wherein: 1-impacts take-off lever; Head is protected in the 2-guiding; The 6-shell; The 9-bonnet; The 11-socket; The action button of 10-tape light.
Fig. 2 is the sectional structure chart of portable giant magnetostriction seismic source device shown in Figure 1 according to an embodiment of the invention.Wherein: 1-impacts take-off lever, head is protected in the 2-guiding; The 3-compressive pre-stress is regulated pressing plate (dish spring); 4-giant magnetostrictive rod (GMM rod); The 5-drive coil; The 6-shell; 7-impacts control circuit; 8-supply module (lithium battery); The 9-bonnet; 10-tape light action button.
Fig. 3 is the theory diagram of the control circuit 7 of Fig. 1 according to an embodiment of the invention, giant magnetostriction seismic source device shown in Figure 2.Wherein: 302-high voltage direct current generator module; 304-high-voltage switch gear driver module; The 308-trigger pulse; 314,316-holding circuit.
Fig. 4 is a kind of detailed circuit diagram for preparing the impact control circuit 7 of giant magnetostriction seismic source device shown in Figure 3 according to an embodiment of the invention.Wherein: the CTL-control signal; R1～R14-resistance; C1～C7-electric capacity; Q1～Q3, Q5～Q10-triode; The Q4-power field effect pipe; D1～D9-diode.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment technical scheme of the present invention is carried out detailed explanation, so that characteristic of the present invention and advantage are more obvious.Though the present invention will combine embodiment to set forth, should understand this is not to mean the present invention is defined in these embodiment.On the contrary, the invention is intended to contain defined various options in the spirit and scope of the invention that is defined by the appended claim item, can revise item and equivalents.
In addition, in following detailed description of the present invention,, illustrated a large amount of details in order to provide one to understanding completely of the present invention.Yet it will be understood by those skilled in the art that does not have these details, and the present invention can implement equally.In some other instances, describe in detail for scheme, flow process, accessory and the device of known, so that highlight the present invention's purport.
See also Fig. 1, wherein show the perspective view of giant magnetostriction seismic source device 100 according to an embodiment of the invention.In the present embodiment, giant magnetostriction seismic source device 100 is mainly used in to the anchor pole detector elastic stress wave focus is provided.Anchor pole is widely used in engineering site anchoring support mine, dykes and dams, grotto, side slope, tunnel etc.After anchor pole anchors into rock mass, mortar is injected in the bolthole, behind the mortar hardening; Anchor pole and surrounding rock body are integrally formed, and adjacent rock mass is cascaded, and stop the slippage of unstable rock mass; Fissure-plane densification between rock mass makes country rock form the integral body with bearing load ability.The anchor pole detector is mainly used in the state of quality that detects skyhook recently and the anchor pole that comes into operation for a long time; Comprise rock-bolt length, grouting packing, anchoring defective locations, bearing capacity, withdrawal resistance, integrality, density, soundness, health status etc.; Simultaneously through the anchor pole of different anchoring method anchoring is tested fast; Can its grouting quality of comparative evaluation, select only anchoring technology.It detects principle existing description in the preamble background technology.Giant magnetostriction seismic source device 100 places the anchor pole exposed junction, receives the action button 10 of tape light to trigger the controlled generation exciting in back, produces the elastic stress wave signal.Receive detector arrangement (sensor) and place the anchor pole end, receive the signal of this elastic stress wave signal after anchor pole emission, transmission.
As shown in Figure 1, this device 100 comprise impact that take-off lever 1, guiding protect 2, the action button 10 and the charger 12 of shell 6, bonnet 9, socket 11, tape light.Impact that take-off lever 1, guiding protect 2, shell 6, bonnet 9 link to each other successively.Socket 11 is fixed on the bonnet 9, is used to patch the action button 10 and charger 12 one of them person of tape light.Control circuit, supply module all are integrated in shell 6 inside.The GMM rod that giant magnetostrictive material (GMM) is processed also places shell 6 inside, and contacts with impact take-off lever 1.Impact take-off lever 1 and protect 2 fixingly through guiding, can protect 2 along guiding and freely move back and forth in the axial of shell 6.Guiding is protected 2 and is the taper frustum cone structure, and the bottom surface is connected an end of shell 6, and end face has and impacts the identical hole of take-off lever 1 external diameter size, and the impact take-off lever just can axially move back and forth along shell 6 in an end face hole of 2 is protected in guiding.Socket 11 is a multipurpose socket, is connected with shell 6 interior supply modules, and socket 11 patches the action button 10 of tape light when being full of the electricity use, patches charger 12 when finishing using the back charging.
Shell 6 inner giant magnetostrictive materials are compared with magnetostriction materials with traditional piezoelectric, under the effect in magnetic field, can produce much bigger length or volume change, have more characteristics such as energy density height, response speed is fast, power output is big.The giant magnetostriction seismic source device 100 of present embodiment is straight ejector half giant magnetostriction seismic source, and giant magnetostrictive material wherein is much bigger along the strain that radially takes place of shell 6 along the strain ratio of the axial generation of shell 6.Therefore, after the magnetic excitation generation strain that giant magnetostrictive material is changed, the impact take-off lever 1 that just can promote to contact with it protects 2 axial stretching along guiding and moves.In the present embodiment, impact that take-off lever 1, guiding protect 2, shell 6, bonnet 9 all can prepare by metal material, those of ordinary skills all can prepare according to the example structure of Fig. 1 and Fig. 2.Insert the action button 10 optional WH-09 type switches of producing with Wuhan China and mechanical & electrical technology company limited of tape light.The inner GMM rod of shell 6 can be processed by the alloy Tb-Dy-Fe terbium dysprosium ferrum magnetostriction alloy material (like Terfenol-D) of iron and rare earth metal Tb, dysprosium; The GMM rod of existing on the market multiple size for you to choose, the GMM rod produced of Beijing Iron and Steel Research Geueral Inst research and development etc. for example.
See also Fig. 2, wherein show the sectional structure chart of giant magnetostriction seismic source device shown in Figure 1 100 according to an embodiment of the invention.As shown in Figure 2, this seismic source apparatus 100 comprises and impacts that take-off lever 1, guiding protect 2, compressive pre-stress is regulated pressing plate 3, giant magnetostrictive rod (GMM rod) 4, drive coil 5, shell 6, impacted control circuit 7, supply module 8 and bonnet 9.Wherein impact take-off lever 1 and guiding and protect 2 and link to each other, guiding is protected 2 and is linked to each other with shell 6, and shell 6 links to each other with bonnet 9, and socket 11 places bonnet 9 rear ends.Drive coil 5 can be formed by the enameled wire coiling of 2mm, and impacting control circuit 7 can be prepared by electronic component commonly used according to circuit shown in Figure 4 voluntarily, and supply module 8 can be according to prior art for preparing.
Wherein GMM rod 4, drive coil 5, compressive pre-stress are regulated pressing plate 3 and are placed giant magnetostriction seismic source device 100 front ends, impact control circuit 7 and place giant magnetostriction seismic source device 100 middle parts, and supply module 8 places giant magnetostriction seismic source device 100 rear ends.The front end of giant magnetostriction seismic source device 100, middle part and rear end are spaced from each other through the fixing draw-in groove of shell 6 inwalls, to keep its Stability Analysis of Structures.Impact take-off lever 1 and be connected, and blocked by compressive pre-stress adjusting pressing plate 3 and to compress with the taenidium mouth maintenance that GMM rod 4 is regulated pressing plate 3 through compressive pre-stress.The GMM Tensile strength is low, and compressive pre-stress is regulated pressing plate 3 and is used to produce precompression, and GMM rod 4 is operated under the pressurized condition.In addition, compressive pre-stress is regulated the magnetostriction amount that suitable compressive pre-stress that pressing plate 3 compresses generation can increase GMM rod 4.Compressive pre-stress is regulated pressing plate 3 and can be made up of dish spring and nut combinations, can adjust the size of compressive pre-stress through the rotation nut.Among one of them embodiment, compressive pre-stress is adjusted to 6-8MPa, makes GMM rod 4 produce maximum machine displacement output.
As shown in Figure 2, GMM rod 4 places giant magnetostriction seismic source device 100 front end center positions.The external diameter driven line circle 5 coaxial windings of GMM rod 4 are surrounded, and make GMM rod 4 be positioned at the central authorities of drive coil 5.The controlled pulsing formula of input current in the drive coil 5 changes, and through the input current in the controlling and driving coil 5, may command GMM rod 4 residing magnetic fields are strong and weak.Under the ringing pulse the action of a magnetic field that drive coil 5 produces, GMM rod 4 is made corresponding dilatation by shock response, and the impact take-off lever 1 that is attached thereto simultaneously can produce distinctive mechanical temporary impact phenomenon.Through the input current in the controlling and driving coil 5, the retractable variable of may command GMM rod 4, and the displacement and the power output of the instantaneous physical shock pulse of output of the impact take-off lever 1 that is attached thereto.
Supply module 8 places the rear end of giant magnetostriction seismic source device 100, separates through draw-in groove and the middle part that is fixed on shell 6 inwalls.Supply module comprises charging circuit, battery, feed circuit.Charging circuit, battery, feed circuit link to each other with socket 210.Wherein tape light action button 110 both can show the situation of the impact circuit savings electric energy of excitation control, and it is bright to be ready to rear indicator light, after this could push button 110, and output physical shock excitation.In the present embodiment, adopt the 12V lithium battery power supply that volume is little, energy is big, once charging can be used 20 hours continuously.Therefore just can impact take-off lever 1, control circuit 7, battery 8 threes be integrated in the giant magnetostriction seismic source device 100, structure is lightly compact, has improved portability greatly.Because giant magnetostriction seismic source device 100 adopts the low dc voltage of lithium battery to produce the high voltage excitation pulse, increase valid analysing range simultaneously, improved the antijamming capability of detection sensitivity and detection signal.
The design of giant magnetostriction seismic source device 100 need be taken all factors into consideration many-sided factor, and its mechanical parameter of reasonable disposition and electromagnetic parameter are emphasis of the present invention.According to one of them embodiment of the present invention, GMM rod 4 can be processed by the alloy Tb-Dy-Fe terbium dysprosium ferrum magnetostriction alloy material (like the Terfenol-D giant magnetostrictive material of U.S. Edge Technologies company) of iron and rare earth metal Tb, dysprosium.The key property parameter of Tb-Dy-Fe GMM rod 4 comprises magnetostriction coefficient λ, elastic modulus E, magnetic permeability μ and dynamic magnetostriction coefficient d
33Deng.The driving magnetic field intensity Hp that drive coil 5 produces, compressive pre-stress are regulated the compressive pre-stress σ that pressing plate 3 produces
y, and working temperature t the performance of GMM rod 4 is all had very big influence, be that the rational characterisitic parameter of GMM rod 4 configurations must be confirmed suitable driving field intensity Hp, compressive pre-stress σ earlier
yWith working temperature t.According to one of them embodiment of the present invention, giant magnetostriction seismic source device 100 designs corresponding driving field intensity Hp and compressive pre-stress σ according to the family curve of magnetostriction materials Terfenol-D
yCompressive pre-stress σ
yScope between 6MPa and 8MPa.According to one of them embodiment of the present invention, drive field intensity Hp=150KAm
-1, compressive pre-stress σ
y=7MPa, working temperature t=25 ℃.According to another embodiment of the invention, drive field intensity Hp=36kA.m
-1, compressive pre-stress σ
y=475N.
Giant magnetostriction seismic source device 100 one of them important innovations point of the present invention are its compressive pre-stress of reasonable disposition σ
yIt is spring that the compressive pre-stress of traditional magnetostriction seismic source apparatus is regulated pressing plate, regulates compressive pre-stress σ through the nut location that compresses on the manual adjustments spring
y, and the compressive pre-stress of giant magnetostriction seismic source device of the present invention 100 is regulated pressing plate 3 employing high-quality dish springs, can adjust compressive pre-stress automatically according to the deadweight, the modes of emplacement that impact take-off lever 1 and GMM rod 4.
According to one of them embodiment of the present invention, the diameter of GMM rod 4 is 10mm * 40mm, and length is 42mm; The internal diameter of drive coil 5 is 11.5mm, and the number of turn is 1900.The diameter that impacts take-off lever 1 can be 35mm, 45mm, 50mm, 60mm, 80mm, 100mm.
See also Fig. 3, wherein show the theory diagram of the impact control circuit 7 of Fig. 1 according to an embodiment of the invention, a kind of giant magnetostriction seismic source device 100 shown in Figure 2.As shown in Figure 3, the impact control circuit 7 of this seismic source apparatus 100 comprises high voltage direct current generator module 302, high-voltage switch gear driver module 304, trigger pulse control module 308.Trigger pulse 308 is the control signal that the action button of tape light produces, and this trigger pulse control signal 308 will transfer to high-voltage switch gear driver module 304.Simultaneously, high voltage direct current generator module 302 also connects high-voltage switch gear driver module 304.The output terminal 312 of high-voltage switch gear driver module 304 connects drive coil 5, output current signal to drive coil 5.High-voltage switch gear driver module 304 is according to the break-make of trigger pulse control signal 308 control high voltage direct current generator modules 302, and output ringing pulse electric current is to drive coil 5.Through the electric current in the controlling and driving coil 5, with the magnetic field intensity that GMM rod 4 is passed in control, drive the flexible of GMM rod 4, the impact take-off lever 1 that promotes to be attached thereto produces displacement, thereby instantaneous physical shock takes place.Its principle of work is not given unnecessary details at this in the partly existing description of preamble Fig. 1 Fig. 2 again.
According to one of them embodiment of the present invention; Also be provided with holding circuit 314,316 in the high voltage direct current generator module 302 of giant magnetostriction seismic source device 100, the high-voltage switch gear driver module 304; Be used for when impact control circuit 7 overcurrents, short circuit or the skin temperature of giant magnetostriction seismic source device 100 are overheated, protecting automatically; Breaking circuit makes it to quit work rapidly; Recover just often can the auto-closing circuit when the electric current that impacts control circuit 7, state of temperature, makes it to work on.Holding circuit 314,316 can be according to prior art for preparing.For example, can adopt the insurance fuse to insert and impact the position that is prone to overcurrent in the control circuit 7, or adopt comparer to add switching tube and build, also can adopt the protection chip of specialty to accomplish, those of ordinary skills all can understand, and do not give unnecessary details again at this.
See also Fig. 4, wherein show the detailed circuit diagram of the impact control circuit 7 of giant magnetostriction seismic source device shown in Figure 3 100 according to an embodiment of the invention.Fig. 4 only detailed icon impacts high voltage direct current generator module 302 and high-voltage switch gear driver module 304 in the control circuit 7.In the present embodiment, the power supply that impacts control circuit 7 is the 12V charged lithium cells, and the DC voltage that giant magnetostriction seismic source device 100 utilizes lithium battery to provide boosts and produces high voltage excitation pulse electric current.
As shown in Figure 4; Impact control circuit 7 and comprise high voltage direct current generator module 302, high-voltage switch gear driver module 304; The first half is a high voltage direct current generator module 302, and the latter half is a high-voltage switch gear driver module 304, and wherein coil L1 is the described drive coil 5 of preamble.High voltage direct current generator module 302 by transformer BYQ, triode Q5～Q10, diode D2～D4, transformer BYQ, and some conventional resistance, capacitor element form.The emitter of a pair of NPN type triode Q5, Q6 links to each other altogether.The collector of triode Q6 links to each other with the base stage of triode Q5 through resistance R 9, and is connected to an end of transformer BYQ primary coil.The base stage of triode Q6 links to each other with the collector of triode Q5 through resistance R 8, and is connected to the other end of transformer BYQ primary coil.Transformer BYQ has two independently secondary coils, and one of them secondary coil two ends HAC1, HAC2 export high-voltage AC signal, and another secondary coil 6,7 pin provide feedback signal FHAC, other end ground connection.
Control signal H/L connects base stage and the emitter of triode Q7 respectively through resistance R 11 and resistance R 12.The emitter of triode Q7 is ground connection simultaneously, and collector connects the sliding end of adjustable resistance RW2.Adjustable resistance RW1 and adjustable resistance RW2 symmetry are placed; The two stiff ends butt joint of adjustable resistance RW1, resistance R W2; The stiff end ground connection of one of them butt joint; The stiff end of another butt joint is connecting resistance R10 and diode D2 successively, and wherein the secondary coil of the anode of diode D2 and transformer BYQ joins, and feedback signal FHAC is provided.Resistance R 10 two ends through capacitor C 3 and capacitor C 4 ground connection, are used for filtering respectively.The sliding end of adjustable resistance RW1, resistance R W2 links to each other with resistance R 13 through diode D3, diode D4 respectively, and through capacitor C 5 ground connection.The other end of resistance R 13 links to each other with the base stage of triode Q8, and the base stage of triode is through resistance R 15 ground connection, grounded emitter.The collector of triode Q8 joins through resistance R 14 and+12V power supply.Simultaneously+the 12V power supply joins through resistance R 14 and triode Q9 base stage.The collector of the collector of triode Q9 and triode Q10 connects+the 12V power supply simultaneously, and triode Q9 emitter connects the base stage of triode Q10, the grounded emitter of triode Q10.
Triode constitutes multivibrator to the primary coil of Q5, triode Q6, resistance R 8, resistance R 9 and transformer BYQ; Be used for making the primary coil of transformer BYQ to produce the interchange vibration, wherein the energy storage time-delay element utilizes the inductance of the primary coil of transformer BYQ to realize.Multivibrator circuit does not need the extrinsic motivated signal conveniently can continuously, periodically produce rect.p. voluntarily.This pulse is to be made up of first-harmonic and multiple harmonic, therefore is called multivibrator.In this enforcement, triode is a triode to Q5, triode Q6.According to other different embodiment of the present invention, multivibrator also can be made up of 555 triggers or general gate circuit etc.Voltage signal VADJ is the feedback bias voltage, be added in the primary coil of transformer BYQ in the middle of certain a bit, for multivibrator circuit provides biasing.
When the secondary coil number of turn of transformer BYQ was far longer than its number of primary turns, the secondary coil port HAC1 of transformer BYQ, HAC2 place be the output AC high-voltage signal just.Transformer BYQ is level coil once in addition, and output port FHAC, the circuit of its back are used for forming feedback according to the size of transformer secondary output coil output voltage, export with the ac high-voltage of stablizing first secondary coil port HAC1, HAC2 place.Above-mentioned feedback bias voltage VADJ is produced by the circuit of transformer BYQ secondary coil output port FHAC back.Because two secondary coil output voltages of transformer BYQ are directly proportional; Therefore available feedback bias voltage VADJ monitors the alternating voltage of first secondary coil output terminal of transformer BYQ HAC1, HAC2, prevents to impact control circuit 7 overcurrents and burns components and parts.Wherein triode Q10 is a pliotron, plays amplification.Size through regulator potentiometer RW1 scalable output feedback voltage V ADJ.
Wherein the voltage of the tickler of the 6-7 pin of transformer BYQ pulse transformer output is through diode D2 and capacitor C 3 rectifying and wave-filterings; Through resistance R 10 current limlitings; Adjustable resistance RW1, adjustable resistance RW2, triode Q7, resistance R 11, resistance R 12, diode D3, resistance R 13, resistance R 15, triode Q8, triode Q9 and triode Q10 form voltage regulator circuit, the High AC voltage that controlling resistance R8, resistance R 9 and transformer BYQ pulse transformer series resonance produce.High-low level through control signal H/L end is so that regulate the output energy of focus.
In addition, the circuit of triode Q7, diode D4, resistance R 11, resistance R 12 compositions can make impact control circuit 7 that two grades of high pressure outputs are provided.Control signal H/L can select the gear size of high pressure output.As control signal H/L when being high, triode Q7 conducting, diode D4 anode voltage is high, diode D4 conducting, this moment, the voltage VADJ of output was lower, on the contrary when H/L end VADJ output voltage when hanging down higher.
The ac high-voltage signal of the transformer BYQ output of high voltage direct current generator module 302 transfers to high-voltage switch gear driver module 304 through port HAC1 and HAC2.The control signal CTL that the trigger pulse control module produces also is connected to high-voltage switch gear driver module 304.High-voltage switch gear driver module 304 is to control to excite through the high speed turn-off of high-power vertical-channel isolated gate FET (VMOS) Q4 to impact control circuit 7 generation pulse high currents, and VMOS pipe Q4 is as switching tube.In another embodiment, VMOS pipe Q4 also can select more general power CMOS pipe for use.
High-voltage switch gear driver module 304 is made up of VMOS pipe Q4, resistance R 1, resistance R 6, resistance R 16, transistor Q1, transistor Q3, diode D6, diode D9, capacitor C 6, capacitor C 7.Control signal CTL connects the base stage of triode Q1 through resistance R 1, and the base stage of triode Q1 is through resistance R 2 ground connection, the direct ground connection of emitter simultaneously.The base stage of the collector connecting transistor Q2 of triode Q1, and connect+the 12V power supply through resistance R 3.The grounded emitter of triode Q2, collector links to each other with the base stage of triode Q3 through resistance R 6, and connects+the 12V power supply through resistance R 4.The emitter of triode Q3 is through resistance R 7 ground connection, and collector connects+the 12V power supply through resistance R 5.The emitter of triode Q3 links to each other with the grid of VMOS pipe Q4 simultaneously.The source ground of VMOS pipe Q4, the end of drain connection circle L1 (being drive coil 5).
Simultaneously, transformer BYQ out-secondary HAC1 links to each other with diode D6 anode, diode D8 negative electrode, and transformer BYQ out-secondary HAC2 links to each other with diode D7 anode, diode D9 negative electrode.Diode D8, diode D9 plus earth.Diode D6, diode D7 negative electrode link to each other with diode D5 anode.Diode D5 negative electrode links to each other through the other end of resistance R 16 with coil L1 (being drive coil 5).
Driving power VMOS pipe Q4 is equivalent to the network of rotating band capacitive load, and the performance of the electrical specification impact control circuit 7 of electronic switch has very big influence when high-frequency work, and the loss that the charge and discharge of VMOS pipe Q4 electric capacity simultaneously cause very significantly.For improving the switching characteristic that pulse amplitude need strengthen VMOS pipe Q4, therefore directly control wave CTL is not received the grid of VMOS pipe Q4, but adopted driving circuit.In the present embodiment, the driving circuit of VMOS pipe Q4 is made up of transistor Q1, transistor Q2, transistor Q3.Wherein transistor Q1, transistor Q2 adopt the identical symmetric form triode of parameter, as switching tube; Transistor Q3 adopts power field effect pipe or pliotron, to increase drive current.According to different embodiment, the driving circuit that triode Q1, triode Q2, triode Q3 form can be cmos buffer device parallel connection driving, FET is multi-form to pipe driving and bipolarity triode power drive etc.The high voltage direct current generator module 302 of present embodiment can produce the high voltage up to 1000V; Utilize the high voltage transient discharge, exportable ringing pulse electric current, instantaneous deformation takes place in excitation GMM rod 4; Output physical shock, and be different from traditional 220V low-voltage instantaneous discharge.Ac high-voltage signal HAC1, the HAC2 of 302 outputs of high voltage direct current generator module are connected to the high-voltage switch gear driver module.High-voltage switch gear driver module 304 not only comprises driving circuit, also comprises half-bridge commutated network and rlc circuit.In the present embodiment, diode Q6, diode Q7, diode Q8, diode Q9 constitute the half-bridge commutated network.Because ac high-voltage signal and its primary coil of transformer BYQ out-secondary HAC1, HAC2 output are kept apart in the high voltage direct current generator module 302; The half-bridge commutated network can partly pass through the ac high-voltage signal malleation of HAC1, the output of HAC2 end, makes the signal of output.According to different embodiment, also can adopt other power module.Diode D5 plays further rectified action, and capacitor C 6 is a filter capacitor.The rlc circuit of high voltage direct current generator module 302 comprises coil L1 (being drive coil 5), capacitor C 7, resistance R 16, three's series connection.Rlc circuit is used for series resonance and produces the hf and hv pulse signal.The course of work of high-voltage switch gear driver module 304 is described below in conjunction with rlc circuit.When control signal CTL is a low level, when switching tube Q4 turn-offs, capacitor C 7 chargings, high-voltage power supply through drain resistance R16 to capacitor C 7 chargings.Because charging process accomplishes at short notice, so resistance R 16, capacitor C 7 are can not value excessive, and capacitor C 7 should be high pressure resistant.This moment, switching tube Q1 turn-offed, the conducting of Q2 switching tube, and switching tube Q3 turn-offs.When control signal CTL is a high level, during switching tube Q4 conducting, capacitor C 7 is through coil L1 (being drive coil 5) and VMOS pipe Q4 discharge.Go up at coil L1 (drive coil 5) and produce pulse current this moment, and physical shock takes place excitation GMM rod 4.Switching tube Q1 conducting this moment, switching tube Q2 turn-offs, triode Q3 conducting.In this enforcement; Matching network through rlc circuit comes the tuning resonance frequency that makes circuit working at transducer; Drive coil L1 (drive coil 5) produces transient pulse magnetic field; Make GMM rod 4 by impacting the flexible deformation of corresponding generation, the impact take-off lever 1 that is connected with GMM rod 4 is exported the physical shock response thus.
Resistance R 8, R9 and transformer BYQ pulse transformer series resonance produce high-voltage AC signal; Through diode D5, diode D6, diode D7, diode D8 and diode D9 rectifier circuit; And back capacitor C 6, capacitor C 7, the drive coil L1 of GMM and the filtering circuit of resistance R 16, obtain the dc high voltage of low ripple.On output switch circuit, adopt high-power VMOS power tube Q4 to control energizing circuit and produce pulse high current, drive coil produces transient pulse magnetic field, makes GMM rod output physical shock response.
This impact control circuit 7 has improved the sensitivity and the antijamming capability of giant magnetostriction seismic source device 100, satisfies the portability and the security requirement of device.Giant magnetostriction seismic source device 100 of the present invention not only can be used in said anchor pole detector of preamble and the sonic detection appearance; Also can be used with elastic wave detection type equipment with the synchronous output interface of external trigger; Also can have the elastic wave checkout equipment that signal triggering or passage trigger and be used, also can customize upgrading parts such as infrared electro sync cap as required with inside.
To combine Fig. 1, Fig. 2, Fig. 3, Fig. 4 to describe this method below.
A, charger 12 is plugged socket 11, give lithium cell charging through supply module 8.
After B, charging finish, pull out charger 12, plug the action button 10 of tape light, the power light of the action button 10 of the back tape light that powers on is bright.
C, wait for about 3 seconds after, press the action button 10 of tape light, promptly exportable physical shock signal.See also Fig. 4; The action button 10 of pressing tape light can provide the trigger pip of a step; Produce a transition pulse control signal CTL through trigger pulse control module 308,, will have corresponding with it ringing pulse electric current to flow through drive coil 5 in response to pulse control signal CTL; Drive GMM rod 4 and the pulsatile once magnetostrictive strain takes place in the short time, thereby take-off lever 1 output physical shock signal is impacted in order at the corresponding utmost point.
Persons skilled in the art are appreciated that; Giant magnetostriction seismic source of the present invention not only can be used for for the anchor pole detector stress wave focus being provided; Carry out the detection of rock-bolt length and saturation degree, advanced prediction detection; The emission acoustic wave transducer that can be the sonic detection appearance simultaneously provides the mechanical source excitation of required frequency, to form sound wave or ultrasound wave, carries out ground and concrete sound wave to wearing detection.Further, giant magnetostriction seismic source of the present invention provides the equipment of seismic source apparatus applicable to any needs.
Giant magnetostriction seismic source device of the present invention will impact take-off lever, control circuit, battery three and be integrated in the device; And the employing new type control circuit, not only improved the portability of installing, reduced the duration of charging; And strengthened the source signal quality, improved testing efficient.The giant magnetostriction seismic source that the present invention discloses compared with prior art has the following advantages: integrated design, and the power supply lithium battery all is integrated in the seismic source apparatus housing with the idle running circuit, has improved the reliability of seismic source apparatus work; Compressive pre-stress is regulated pressing plate and is adopted fine thread, makes that the adjusting compressive pre-stress is meticulousr, reaches maximum displacement and impulsive force output; The part that is threaded of shell adopts rubber seal and fluid sealant sealing, and control circuit adopts the casting glue sealing of epoxy resin, satisfies the requirement of waterproof, protection against the tide, mildew-resistant; Optimize physical construction, reduced the weight of focus, be easy to carry and field operation; The output energy of seismic source apparatus can carry out two other switchings of level of height through control end, to adapt to different excitation density demands.In addition, the portable giant magnetostriction seismic source device of the present invention's announcement has advantages such as emissive power is big, stable performance, energy conversion efficiency is high, penetration range is far away, the reception signal band is wide, good reproducibility, accurate timing, aftershock is short, detection sensitivity is high, the antijamming capability of detection signal is strong, easy to operate, advantages of small volume is light.
Experiment shows that the giant magnetostriction seismic source maximum instantaneous power that the present invention discloses can reach 10KW, 20KW, 40KW, 80KW, 100KW, 120KW, and output pulses can reach 100us; Emission voltage can reach 200V, 400V, 800V, 1600V; Aftershock is merely 400us; Detection range can reach about 20m, and can guarantee higher detection accuracy.
Though explanation before and accompanying drawing have been described preferred embodiment of the present invention, be to be understood that under the prerequisite of the spirit of the principle of the invention that does not break away from claims and defined and protection domain, can have and variously augment, revise and replace.It should be appreciated by those skilled in the art that the present invention can change aspect form, structure, layout, ratio, material, element, assembly and other according to concrete environment and job requirement to some extent under the prerequisite that does not deviate from the utility model criterion in practical application.Therefore, embodiment disclosed here only is illustrative rather than definitive thereof, and protection scope of the present invention is defined by technical scheme in claims and legal equivalents thereof, and the description before being not limited thereto.
Claims (8)
1. portable giant magnetostriction seismic source device; This device comprises that head (2) is protected in impact take-off lever (1), guiding, compressive pre-stress is regulated pressing plate (3), giant magnetostrictive rod (4), drive coil (5), supply module (8) and action button (10); It is characterized in that; Impacting control circuit (7) links to each other with drive coil (5) and supply module (8); Impact control circuit (7) and supply module (8) and be contained in the shell (6), guiding is protected head (2) and is connected with shell (6), bonnet (9) successively, and it is fixing that impact take-off lever (1) protects head (2) through guiding; Giant magnetostrictive rod (4), drive coil (5) place shell (6) cavity front end; Impact control circuit (7) and place shell (6) cavity middle part, supply module (8) places shell (6) cavity rear end, is connected with drive coil (5) and impact control circuit (7); Described impact control circuit (7) comprises high voltage direct current generator module (302), high-voltage switch gear driver module (304), trigger pulse control module (308), and the output terminal (312) of said high-voltage switch gear driver module (304) connects drive coil (5).
2. a kind of portable giant magnetostriction seismic source device according to claim 1 is characterized in that: described impact take-off lever (1) is connected through the taenidium mouth with giant magnetostrictive rod (4).
3. a kind of portable giant magnetostriction seismic source device according to claim 1; It is characterized in that: described supply module (8) places shell (6) the cavity rear end of giant magnetostriction seismic source device; Said supply module (8) comprises charging circuit, battery, feed circuit, and wherein charging circuit and feed circuit link to each other with action button (10).
4. a kind of portable giant magnetostriction seismic source device according to claim 1 is characterized in that: said compressive pre-stress is regulated pressing plate (3) and is adopted the dish spring, and described compressive pre-stress is regulated pressing plate (3) and linked to each other with giant magnetostrictive rod (4).
5. a kind of portable giant magnetostriction seismic source device according to claim 1; It is characterized in that: ((D2～D4), and resistance R 8～resistance R 15, (C3～C5) forms, the primary coil of wherein a pair of identical triode (Q5, Q6) and resistance R 9, transformer (BYQ) is connected to form resonant circuit to described high voltage direct current generator module (302) in capacitor element for Q5～Q10), diode by transformer (BYQ), triode.
6. a kind of portable giant magnetostriction seismic source device according to claim 1; It is characterized in that: the ac high-voltage signal of the transformer secondary output coil of described high voltage direct current generator module (302) output is connected to high-voltage switch gear driver module (304), and high-voltage switch gear driver module (304) comprises four diodes (RC filtering circuit and on-off circuit (Q4) that half-bridge rectification circuit, electric capacity (C6, C7), the resistance R 16 of D6～D9) build formed.
7. a kind of portable giant magnetostriction seismic source device according to claim 1; It is characterized in that: described high voltage direct current generator module (302) is made up of transformer (BYQ), triode Q5～triode Q10, diode (D2, D4); The said triode Q5 of wherein a pair of NPN type and the emitter of triode Q6 link to each other altogether; The collector of triode Q6 links to each other with the base stage of triode Q5 through resistance R 9; Be connected to an end of transformer (BYQ) coil, the base stage of triode Q6 links to each other with the collector of triode Q5 through resistance R 8, is connected to the other end of transformer (BYQ) coil.
8. a kind of portable giant magnetostriction seismic source device according to claim 1 is characterized in that: described action button (10) is connected with supply module (8).
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| CN2009100632744A CN101694973B (en) | 2009-07-21 | 2009-07-21 | Portable giant magnetostriction seismic source device |
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| CN2009100632744A CN101694973B (en) | 2009-07-21 | 2009-07-21 | Portable giant magnetostriction seismic source device |
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|---|---|---|---|---|
| CN110794449A (en) * | 2019-11-15 | 2020-02-14 | 中国矿业大学 | Vibroseis device and installation method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1138124A (en) * | 1995-06-10 | 1996-12-18 | 三菱电机株式会社 | Vibration exciter machine |
| CN200962570Y (en) * | 2006-10-25 | 2007-10-17 | 武汉理工大学 | An ultra-magnetic telescopic driving device |
| CN201532384U (en) * | 2009-07-21 | 2010-07-21 | 武汉中岩科技有限公司 | Portable giant magnetostrictive seismic source device |
-
2009
- 2009-07-21 CN CN2009100632744A patent/CN101694973B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1138124A (en) * | 1995-06-10 | 1996-12-18 | 三菱电机株式会社 | Vibration exciter machine |
| CN200962570Y (en) * | 2006-10-25 | 2007-10-17 | 武汉理工大学 | An ultra-magnetic telescopic driving device |
| CN201532384U (en) * | 2009-07-21 | 2010-07-21 | 武汉中岩科技有限公司 | Portable giant magnetostrictive seismic source device |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平9-288020A 1997.11.04 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110794449A (en) * | 2019-11-15 | 2020-02-14 | 中国矿业大学 | Vibroseis device and installation method thereof |
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