CN107505552A - The lower shelf depreciation high-frequency signal extraction element of steep-front impact and measuring system - Google Patents
The lower shelf depreciation high-frequency signal extraction element of steep-front impact and measuring system Download PDFInfo
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- CN107505552A CN107505552A CN201710960090.2A CN201710960090A CN107505552A CN 107505552 A CN107505552 A CN 107505552A CN 201710960090 A CN201710960090 A CN 201710960090A CN 107505552 A CN107505552 A CN 107505552A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
- G08C23/06—Non-electrical signal transmission systems, e.g. optical systems through light guides, e.g. optical fibres
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- Arrangements For Transmission Of Measured Signals (AREA)
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Abstract
This application provides a kind of steep-front to impact lower shelf depreciation high-frequency signal extraction element, wherein, cavity one end is provided with cavity bottom surface, and cavity is provided with intercommunicating pore on bottom surface；Cavity bottom surface is being provided with high-frequency signal receiving part positioned at the side of containment portion；The side that high-frequency signal receiving part is located at cavity bottom surface is provided with connecting rod, and connecting rod one end within the cavity is provided with connecting pole, and the periphery of connecting rod is provided with insulating sleeve；The cavity other end is provided with cavity cover plate, and connecting hole is provided with cavity cover plate, and cavity cover plate is provided with electrical connector in connection hole, and electrical connector is connected with connecting pole by banana joint.Cavity is placed in the reserved window of GIS pipelines, when carrying out GIS partial discharge detection under steep-front impact, high-frequency signal receiving part receives initial measurement signal, and electrical connector is sent to by connecting rod, connecting pole and banana joint, it is achieved thereby that impacting the extraction of lower shelf depreciation high-frequency signal to steep-front.
Description
Technical field
The application is related to electric and electronic technical field, more particularly to a kind of lower shelf depreciation high-frequency signal of steep-front impact carries
Take device and measuring system.
Background technology
All the time, those skilled in the art are in the field of business builds consensus：In extra-high voltage field, for detection device defect,
Impulse withstand voltage experiment would generally be carried out in device context commissioning test, and in super-pressure field, generally a progress industrial frequency withstand voltage
Experiment.However, with the Large scale construction of supergrid in recent years and putting into operation, equipment occurs before putting into operation and among operation
The probability of accident is continuously increased, and this explanation only carries out industrial frequency withstand voltage experiment to extra-high tension unit can not meet the safety of equipment
Demand.Also, for extra-high tension unit, such as gas-insulated switchgear (Gas Insulated Switchgear, abbreviation
GIS device), although the power-frequency voltage that industrial frequency withstand voltage experiment uses can excite and exposure device defect, due to power frequency electric
Pressing element has continuation, also equipment deficiency can be made further to expand while exciting and exposure device defect, equipment is caused more
Big damage.
For extra-high tension units such as GIS devices, the characteristics of surge voltage is due to its " transient ", exciting and exposing defect
While, defect will not be expanded, also, determine for the GIS device with fixed insulation defect, the wave head time of surge voltage
GIS breakdown characteristics, the wave head time is shorter, it is found that the effect of defect is better on the contrary.Therefore, using steep-front surge voltage pair
The lower measurement of partial discharge of GIS device progress steep-front impact can effectively find the local defect in GIS device.
In the prior art, excitation is used as using alternating voltage or DC voltage more for the measurement of partial discharge of GIS device
Voltage, it is more using excusing from death ripple method, hyperfrequency method and pulse current method in measurement means, and put for local under steep-front impact
Electro-detection, because its wave head time is short, without continuation, above-mentioned measuring method has significant limitation, therefore, existing skill
Measurement means in art can not realize to GIS device steep-front impact under measurement of partial discharge.
The content of the invention
This application provides a kind of steep-front to impact lower shelf depreciation high-frequency signal extraction element and measuring system, to solve
Problems of the prior art.
This application provides a kind of steep-front to impact lower shelf depreciation high-frequency signal extraction element, including：Cavity；Wherein：
Described cavity one end is provided with cavity bottom surface, and intercommunicating pore is provided with the cavity bottom surface；The cavity bottom surface exists
The side of the containment portion is provided with high-frequency signal receiving part, the high-frequency signal receiving part and the cavity bottom
The first insulating barrier is provided between face.
The side that the high-frequency signal receiving part is located at the cavity bottom surface is provided with connecting rod, and the connecting rod is located at
In the intercommunicating pore, the one end of the connecting rod away from the high-frequency signal receiving part is located in the cavity, the connection
The diameter of bar is less than the connection bore dia；One end that the connecting rod is located in the cavity is provided with connecting pole, the company
The diameter for connecing post is more than the diameter of the connecting rod；The periphery of the connecting rod is provided with insulating sleeve, and the insulating sleeve exists
Diameter in the cavity is more than the diameter of the intercommunicating pore.
The cavity other end is provided with cavity cover plate, and the second insulation is provided between the cavity cover plate and the cavity
Layer, connecting hole is provided with the cavity cover plate, the cavity cover plate is provided with electrical connector, the electricity in the connection hole
Banana joint is provided between connector and the connecting pole, the electrical connector passes through the banana joint with the connecting pole
Connection.
Alternatively, the cavity is located at the cavity cover plate side and is provided with abutted flange, the docking of the abutted flange
Seal groove is provided with face.
Alternatively, the high-frequency signal receiving part is disc structure made of metal.
Alternatively, the connecting rod is threaded rod, and the connecting pole is provided with tapped blind hole, the connecting rod and the company
Post is connect to be threadedly coupled by the tapped blind hole.
Alternatively, the cavity and the cavity cover plate are made using stainless steel.
Alternatively, it is filled with airtight and watertight padding in the seal groove.
The application also provides a kind of steep-front impact lower shelf depreciation high frequency testing system, including：Extraction element, letter
Number processing module, signal transmission module and display terminal；Wherein：
The signal processing module is connected with the electrical connector of the extraction element, and the signal processing module is used for
High frequency filter is carried out to the initial measurement signal of extraction element extraction, exports high-frequency signal measurement.
Described signal transmission module one end is connected with the signal processing module, and the other end is connected with the display terminal；
The transmission process module is used to transmit high-frequency signal measurement to the display terminal.
Alternatively, the signal processing module includes high-frequency filter circuit, and the high-frequency filter circuit is used to remove initially
Low-frequency noise in measurement signal, export high-frequency signal measurement.
Alternatively, the signal transmission module includes analog-digital converter, and the analog-digital converter is used to believe high frequency measurement
Number it is converted into the data signal that the display terminal can identify.
Alternatively, the signal transmission module also includes electrical to optical converter, optical-electrical converter and optical cable；The electro-optic conversion
Device is located at the analog-digital converter side, is connected with the analog-digital converter, and the optical-electrical converter is located at the display terminal
Side, it is connected with the display terminal, the electrical to optical converter is connected with the optical-electrical converter by the optical cable.
From above technical scheme, this application provides a kind of steep-front to impact lower shelf depreciation high-frequency signal extraction dress
Put, including：Cavity；Cavity one end is provided with cavity bottom surface, and cavity is provided with intercommunicating pore on bottom surface；Cavity bottom surface is positioned at cavity
Outside side is provided with high-frequency signal receiving part, and the first insulation is provided between high-frequency signal receiving part and cavity bottom surface
Layer；The side that high-frequency signal receiving part is located at cavity bottom surface is provided with connecting rod, and connecting rod is located in intercommunicating pore, and connecting rod is remote
One end from high-frequency signal receiving part is within the cavity, and the diameter of connecting rod is less than connection bore dia；Connecting rod is located at cavity
Interior one end is provided with connecting pole, and the diameter of connecting pole is more than the diameter of connecting rod；The periphery of connecting rod is provided with insulating sleeve,
Diameter of the insulating sleeve in cavity is more than the diameter of connecting pole, cavity bottom surface is dielectrically separated from connecting rod and connecting pole；Chamber
The body other end is provided with cavity cover plate, and connecting hole is provided with cavity cover plate, and cavity cover plate is provided with electrical connection in connection hole
Head, is provided with banana joint between electrical connector and connecting pole, electrical connector is connected with connecting pole by banana joint.Use
When, cavity is placed in the reserved window of GIS pipelines, high-frequency signal receiving part is located in GIS pipelines, before carrying out suddenly
During GIS partial discharge detection lower along impact, high-frequency signal receiving part receives GIS device under steep-front surge voltage and locally put
The initial measurement signal of electricity, initial measurement signal are sent to electricity by connecting rod, connecting pole and the banana joint to be insulated with cavity
Connector, it is achieved thereby that impacting the extraction of lower shelf depreciation high-frequency signal to steep-front.In addition, the application also provides one kind
The lower shelf depreciation high frequency testing system of steep-front impact, including the extraction element that the application provides, signal processing module, letter
Number transport module and display terminal；Signal processing module and the electrical connector of measurement apparatus connect, for being received from extraction element
Initial measurement signal, and High frequency filter is carried out to initial measurement signal, export high-frequency signal measurement；Signal transmission module one end with
Signal processing module is connected, and the other end is connected with display terminal；Signal processing module is used to transmit high-frequency signal measurement to aobvious
Show terminal, the measuring system that the application provides, initial measurement signal is extracted by measurement apparatus, by signal processing module to first
Beginning measurement signal is filtered, and removes low-frequency noise, obtains the high-frequency signal measurement of the lower shelf depreciation of steep-front impact, finally,
Display terminal is sent to by signal transmission module, makes the lower shelf depreciation high-frequency signal of GIS device steep-front impact whole in display
Quantify display on end, it is achieved thereby that impacting the measurement of lower shelf depreciation high-frequency signal to steep-front.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the application, letter will be made to the required accompanying drawing used in embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without having to pay creative labor,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the lower shelf depreciation high-frequency signal extraction element of steep-front impact shown in the embodiment of the present application
Figure；
Fig. 2 is a kind of structure of the lower shelf depreciation high frequency testing system of steep-front impact shown in the embodiment of the present application
Schematic diagram；
Fig. 3 is the knot of the lower shelf depreciation high frequency testing system of another steep-front impact shown in the embodiment of the present application
Structure schematic diagram；
Wherein：1- cavitys, 11- cavitys bottom surface, 12- intercommunicating pores, 2- high-frequency signal receiving parts, the insulating barriers of 31- first,
32- insulating sleeves, the insulating barriers of 33- second, 4- connecting rods, 5- connecting poles, 51- tapped blind holes, 6- cavity cover plates, 61- connecting holes,
7- electrical connectors, 8- banana joints, 9- abutted flanges, 91- seal grooves, 911- airtight and watertight paddings, 10- extraction elements, at 20- signals
Manage module, 201- high-frequency filter circuits, 30- signal transmission modules, 301- analog-digital converters, 302- electricals to optical converter, 303- light
Electric transducer, 304- optical cables, 40- display terminal modules, 100-GIS pipelines, 110-GIS equipment, 120- reserved windows.
Embodiment
In order that those skilled in the art more fully understand the technical scheme in the application, it is real below in conjunction with the application
The accompanying drawing in example is applied, the technical scheme in the embodiment of the present application is clearly and completely described, it is clear that described implementation
Example only some embodiments of the present application, rather than whole embodiments.It is common based on the embodiment in the application, this area
The every other embodiment that technical staff is obtained under the premise of creative work is not made, it should all belong to the application protection
Scope.
Embodiment one
The embodiment of the present application provides a kind of steep-front impact lower shelf depreciation high-frequency signal extraction element, as shown in figure 1, this
Apply for the lower shelf depreciation high-frequency signal extraction element of steep-front impact that embodiment provides, including：
Cavity 1；The one end of cavity 1 is provided with cavity bottom surface 11, and intercommunicating pore 12 is provided with cavity bottom surface 11；Cavity bottom surface 11
Be provided with high-frequency signal receiving part 2 in the side outside cavity 1, high-frequency signal receiving part 2 and cavity bottom surface 11 it
Between be provided with the first insulating barrier 31；The side that high-frequency signal receiving part 2 is located at cavity bottom surface 11 is provided with connecting rod 4, connection
Bar 4 is located in intercommunicating pore 12, and the one end of connecting rod 4 away from high-frequency signal receiving part 2 is located in cavity 1, the diameter of connecting rod 4
Less than the diameter of intercommunicating pore 12；One end that connecting rod 4 is located in cavity 1 is provided with connecting pole 5, and the diameter of connecting pole 5 is more than connection
The diameter of bar 4；The periphery of connecting rod 4 is provided with insulating sleeve 32, and diameter of the insulating sleeve 32 in cavity 1 is more than connecting pole 5
Diameter, insulating sleeve 32 makes cavity bottom surface 11 be dielectrically separated from connecting rod 4 and connecting pole 5；The other end of cavity 1 is provided with cavity
Cover plate 6, the second insulating barrier 33 is provided between cavity cover plate 6 and cavity 1, connecting hole 61, cavity lid are provided with cavity cover plate 6
Plate 6 is provided with electrical connector 7 at connecting hole 61, and banana joint 8, electrical connector are provided between electrical connector 7 and connecting pole 5
7 are connected with connecting pole 5 by banana joint 8.
In the present embodiment, cavity 1 is arranged in the reserved window 120 of GIS pipelines 100, and the bore of reserved window 120 is bigger
In the external diameter of cavity 1, so that cavity 1 is easily placed and taken out.After cavity 1 is arranged in reserved window 120 and fixed, it is allowed to chamber
Gap is left between body 1 and reserved window 120, is deformed with tackling equipment caused by by environmental factor, but gap can not be excessive, mistake
Big gap is unfavorable for the fixation of cavity 1.In the present embodiment, after cavity 1 is installed, high-frequency signal receiving part 2 is located at GIS pipelines
Close to the position of tube wall in 100, so as to not impacted to the overall structure of GIS pipelines 100.First insulating barrier 31 and insulation sleeve
Cylinder 32 contacts with each other, and cavity 1 is formed reliable insulation with high-frequency signal receiving part 2, connecting rod 4 and connecting pole 5, also,
Second insulating barrier 33 realizes the insulation to connecting pole 5 and cavity cover plate 6, therefore, the survey that high-frequency signal receiving part 2 receives
Amount signal can only transmit along connecting rod 4 and connecting pole 5, and be transferred to by banana joint 8 on the electrical connector 7 outside cavity,
It is not transmitted on cavity 1 and causes signal to be disperseed, so as to is advantageous to improve the effect of signal extraction.When progress steep-front punching
When hitting lower GIS partial discharge detection, high-frequency signal receiving part 2 receives the part of GIS device 110 under steep-front surge voltage and put
The initial measurement signal of electricity, initial measurement signal are sent to by connecting rod 4, connecting pole 5 and the banana joint 8 to be insulated with cavity
Electrical connector 7, it is achieved thereby that impacting the extraction of lower shelf depreciation high-frequency signal to steep-front.
In the present embodiment, the diameter of connecting rod 4 is less than the diameter of intercommunicating pore 12, and the internal diameter of insulating sleeve 32 is equal to connecting rod
4 diameter, the external diameter of insulating sleeve 32 are equal to the diameter of intercommunicating pore 12, make connecting rod 4, insulating sleeve 32 and the shape of cavity bottom surface 11
Fixed into reliable.It should be noted that the relation between the diameter of connecting rod 4 and the diameter of intercommunicating pore 12 will meet it is insulation
Sleeve 32 has enough thickness, the thickness of insulating sleeve 32 is ensured that cavity bottom surface 11 and connecting rod 4 are realized reliably
Insulation.The occurrence of the thickness of insulating sleeve 32 and surge voltage intensity, the material and facility use environment of insulating sleeve 32 etc. because
It is known as pass, also, the various factors that those skilled in the art can insulate according to insulating sleeve 32 is influenceed, reasonable selection insulation sleeve
The thickness of cylinder 32, therefore, the selection for insulating sleeve 32 material, size, specific requirement is not done in the present embodiment.
In the present embodiment, the diameter of connecting pole 5 is more than the diameter of connecting rod 4, can using the connecting pole 5 being relatively large in diameter
Reduce loss of the initial measurement signal in transmission, improve signal extraction effect.Diameter with connecting pole 5 insulate to adaptively
Diameter of the sleeve 32 in cavity 1 is more than the diameter of intercommunicating pore 12, and more than the diameter of connecting pole 5, makes connecting pole 5 and cavity
Bottom surface 11 forms reliable insulation.Insulating sleeve 32 is located at the part beyond the diameter of connecting pole 5, can also be to the direction of connecting pole 5
Extension, while insulation is improved, moreover it is possible to play the effect for being fixedly connected with post 5.
In a kind of selectable embodiment, the side that cavity 1 is located at cavity cover plate 6 is provided with abutted flange 9, docking
The side that flange 9 is located at cavity 1 is provided with seal groove 91.Abutted flange 9 on cavity 1 is used to carry out screw thread with cavity cover plate 6
It is connected, at the same time it can also be also provided with the reserved window 120 of GIS pipelines 100 to reversed flange arrangement, so as to realize
Cavity 1 is connected with the flange of GIS pipelines 100.
In a kind of selectable embodiment, high-frequency signal receiving part 2 is disc structure made of metal.Preferably
Using stainless steel material, so that high-frequency signal receiving part 2 has corrosion protection ability, extraction element service life is improved.
In a kind of selectable embodiment, connecting rod 4 is threaded rod, and connecting pole 5 is provided with tapped blind hole 51, connection
Bar 4 is threadedly coupled with connecting pole 5 by tapped blind hole 51.The cooperation of threaded rod and blind hole 51 connects connecting rod 4 and connecting pole 5
Closely, be advantageous to the conduction of signal, improve signal extraction effect.
In a kind of selectable embodiment, cavity 1 and cavity cover plate 6 are made using stainless steel.Stainless steel has anti-
The ability of corrosion, cavity 1 and cavity cover plate 6 can resist rust of the complex external environment to extraction element using stainless steel material
Erosion, improve extraction element service life
In a kind of selectable embodiment, airtight and watertight padding 911 is filled with seal groove 91.Airtight and watertight padding 911 can be with
The conventional encapsulants such as rope or rubber seal are turned round using ceramic fibre to be made, the sealing for improving cavity 1 and GIS pipelines 100 is imitated
Fruit.
From above technical scheme, this application provides a kind of steep-front to impact lower shelf depreciation high-frequency signal extraction dress
Put, including：Cavity；Cavity one end is provided with cavity bottom surface, and cavity is provided with intercommunicating pore on bottom surface；Cavity bottom surface is positioned at cavity
Outside side is provided with high-frequency signal receiving part, and the first insulation is provided between high-frequency signal receiving part and cavity bottom surface
Layer；The side that high-frequency signal receiving part is located at cavity bottom surface is provided with connecting rod, and connecting rod is located in intercommunicating pore, and connecting rod is remote
One end from high-frequency signal receiving part is within the cavity, and the diameter of connecting rod is less than connection bore dia；Connecting rod is located at cavity
Interior one end is provided with connecting pole, and the diameter of connecting pole is more than the diameter of connecting rod；The periphery of connecting rod is provided with insulating sleeve,
Diameter of the insulating sleeve in cavity is more than the diameter of connecting pole, cavity bottom surface is dielectrically separated from connecting rod and connecting pole；Chamber
The body other end is provided with cavity cover plate, and connecting hole is provided with cavity cover plate, and cavity cover plate is provided with electrical connection in connection hole
Head, is provided with banana joint between electrical connector and connecting pole, electrical connector is connected with connecting pole by banana joint.Use
When, cavity is placed in the reserved window of GIS pipelines, high-frequency signal receiving part is located in GIS pipelines, before carrying out suddenly
During GIS partial discharge detection lower along impact, high-frequency signal receiving part receives GIS device under steep-front surge voltage and locally put
The initial measurement signal of electricity, initial measurement signal are sent to electricity by connecting rod, connecting pole and the banana joint to be insulated with cavity
Connector, it is achieved thereby that impacting the extraction of lower shelf depreciation high-frequency signal to steep-front.
Embodiment two
The embodiment of the present application provides a kind of steep-front impact lower shelf depreciation high frequency testing system, as shown in Fig. 2 this
Apply for the lower shelf depreciation high frequency testing system of steep-front impact that embodiment provides, including：
Extraction element 10, signal processing module 20, signal transmission module 30 and the display shown in the embodiment of the present application one
Terminal 40；Signal processing module 20 is connected with the electrical connector 7 of extraction element 10, and signal processing module 20 is used for extraction element
The initial measurement signal of 10 extractions carries out High frequency filter, exports high-frequency signal measurement；At the one end of signal transmission module 30 and signal
Reason module 20 is connected, and the other end is connected with display terminal 40；Signal transmission module 30 is used to transmit high-frequency signal measurement to aobvious
Show terminal 40.
In a kind of selectable embodiment, signal processing module 20 includes high-frequency filter circuit 201, High frequency filter electricity
Road 201 is used to remove the low-frequency noise in initial measurement signal, exports high-frequency signal measurement.Due to by various external factors
Influence, low-frequency noise can be included in initial measurement signal, low-frequency noise is superimposed upon in the high-frequency signal of shelf depreciation, influences to survey
The accuracy of result is measured, therefore the present embodiment removes the low-frequency noise in initial measurement signal using high-frequency filter circuit 201, it is defeated
Go out high-frequency signal measurement, improve measurement result accuracy.The structure and use high-frequency filter circuit of high-frequency filter circuit carry out high
Frequency filtering belongs to the common knowledge of those skilled in the art, therefore, for the structure of high-frequency filter circuit 201, in the present embodiment
Repeat no more.
In a kind of selectable embodiment, signal transmission module 30 includes analog-digital converter 301, analog-digital converter
301 are used to high-frequency signal measurement being converted into the data signal that display terminal 40 can identify.Due to from signal processing module 20
The high-frequency signal measurement of output is analog signal, and display terminal 40 allows generally for receiving data signal, therefore, in the present embodiment
It is in data signal to be changed analog signal by analog-digital converter 301, so as to the reception processing of display terminal 40, meanwhile, numeral letter
Number it is easy to be stored in the storage medium of display terminal 40, is easy to achieve and checks.
From above technical scheme, the application provides one kind steep-front impact lower shelf depreciation high frequency testing system
System, including the extraction element that the application provides, signal processing module, signal transmission module and display terminal；Signal processing module
It is connected with the electrical connector of measurement apparatus, receives initial measurement signal for extraction element, and initial measurement signal is carried out high
Frequency filters, and exports high-frequency signal measurement；Signal transmission module one end is connected with signal processing module, and the other end connects with display terminal
Connect；Signal processing module is used to transmitting high-frequency signal measurement into the measuring system provided to display terminal, the application, passes through measurement
Device extracts initial measurement signal, and initial measurement signal is filtered by signal processing module, removes low-frequency noise, draws
The high-frequency signal measurement of the lower shelf depreciation of steep-front impact, finally, display terminal is sent to by signal transmission module, makes GIS
The lower shelf depreciation high-frequency signal of equipment steep-front impact quantifies display on display terminal, it is achieved thereby that under being impacted to steep-front
The measurement of shelf depreciation high-frequency signal.
Embodiment three
The embodiment of the present application provides the lower shelf depreciation high frequency testing system of another steep-front impact, such as Fig. 3 institutes
Show, the difference of the embodiment of the present application and embodiment two is：
Signal transmission module 30 also includes electrical to optical converter 302, optical-electrical converter 303 and optical cable 304；Electrical to optical converter
302 are located at the side of analog-digital converter 301, are connected with analog-digital converter 301, and optical-electrical converter 303 is located at the side of display terminal 40,
It is connected with display terminal 40, electrical to optical converter 302 is connected with optical-electrical converter 303 by optical cable 304.
Because GIS pipelines 100 are up to several hundred kilometers sometimes, and this just impacts lower shelf depreciation high-frequency signal to steep-front
Measurement proposes the requirement of far-end measuring, in order that measuring system possesses the ability of far-end measuring in the present embodiment, turns in modulus
The output end of parallel operation 301 sets electrical to optical converter 302, converts digital signals into optical signal, and realize long distance using optical cable 304
From low-loss transmission.Display terminal 40 in the present embodiment can be arranged in measuring station, and is set before display terminal 40
Optical-electrical converter 303, by the way that optical cable 304 and optical-electrical converter 303 are reduced into data signal by the optical signal of long-distance transmissions,
And display terminal 40 is delivered to, it is achieved thereby that impacting the far-end measuring of lower shelf depreciation high-frequency signal to GIS device steep-front.
From above technical scheme, the application provides one kind steep-front impact lower shelf depreciation high frequency testing system
System, including the extraction element that the application provides, signal processing module, signal transmission module and display terminal；Signal processing module
It is connected with the electrical connector of measurement apparatus, receives initial measurement signal for extraction element, and initial measurement signal is carried out high
Frequency filters, and exports high-frequency signal measurement；Signal transmission module one end is connected with signal processing module, and the other end connects with display terminal
Connect；Signal processing module is used to transmitting high-frequency signal measurement into the measuring system provided to display terminal, the application, passes through measurement
Device extracts initial measurement signal, and initial measurement signal is filtered by signal processing module, removes low-frequency noise, draws
The high-frequency signal measurement of the lower shelf depreciation of steep-front impact, finally, display terminal is sent to by signal transmission module, wherein,
High-frequency signal measurement can be converted into optical signal by signal transmission module by data signal, after optical cable long-distance transmissions, also
Original is transferred to display terminal into data signal, makes the lower shelf depreciation high-frequency signal of GIS device steep-front impact in display terminal
It is upper to quantify display, it is achieved thereby that impacting the far-end measuring of lower shelf depreciation high-frequency signal to steep-front.
It should be noted that herein, the relational terms of such as " first " and " second " or the like are used merely to one
Individual entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operate it
Between any this actual relation or order be present.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Cover including for nonexcludability, so that process, method, article or equipment including a series of elements not only include those
Key element, but also the other element including being not expressly set out, or also include for this process, method, article or set
Standby intrinsic key element.
Those skilled in the art will readily occur to the application its after considering specification and putting into practice invention disclosed herein
Its embodiment.The application is intended to any modification, purposes or the adaptations of the application, these modifications, purposes or
Person's adaptations follow the general principle of the application and including the undocumented common knowledges in the art of the application
Or conventional techniques.Description and embodiments are considered only as exemplary, and the true scope of the application and spirit are by following
Claim is pointed out.
It should be appreciated that the precision architecture that the application is not limited to be described above and is shown in the drawings, and
And various modifications and changes can be being carried out without departing from the scope.Scope of the present application is only limited by appended claim.
Claims (10)
1. a kind of lower shelf depreciation high-frequency signal extraction element of steep-front impact, it is characterised in that including cavity (1)；
Described cavity (1) one end is provided with cavity bottom surface (11), and intercommunicating pore (12) is provided with the cavity bottom surface (11)；It is described
Cavity bottom surface (11) is being provided with high-frequency signal receiving part (2), the high-frequency signal positioned at the outside side of the cavity (1)
The first insulating barrier (31) is provided between receiving part (2) and the cavity bottom surface (11)；
The side that the high-frequency signal receiving part (2) is located at the cavity bottom surface (11) is provided with connecting rod (4), the connection
Bar (4) is located in the intercommunicating pore (12), and the one end of the connecting rod (4) away from the high-frequency signal receiving part (2) is located at
In the cavity (1), the diameter of the connecting rod (4) is less than the intercommunicating pore (12) diameter；The connecting rod (4) is positioned at described
One end in cavity (1) is provided with connecting pole (5), and the diameter of the connecting pole (5) is more than the diameter of the connecting rod (4)；Institute
The periphery for stating connecting rod (4) is provided with insulating sleeve (32), and diameter of the insulating sleeve (32) in the cavity (1) is more than
The diameter of the connecting pole (5)；
Cavity (1) other end is provided with cavity cover plate (6), is provided between the cavity cover plate (6) and the cavity (1)
Second insulating barrier (33), connecting hole (61) is provided with the cavity cover plate (6), the cavity cover plate (6) is in the connecting hole
(61) place is provided with electrical connector (7), and banana joint (8) is provided between the electrical connector (7) and the connecting pole (5),
The electrical connector (7) is connected with the connecting pole (5) by the banana joint (8).
2. extraction element according to claim 1, it is characterised in that the cavity (1) is located at the cavity cover plate (6)
Side is provided with abutted flange (9), and the side that the abutted flange (9) is located at the cavity (1) is provided with seal groove (91).
3. extraction element according to claim 1, it is characterised in that the high-frequency signal receiving part (2) is metal system
Into disc structure.
4. extraction element according to claim 1, it is characterised in that the connecting rod (4) is threaded rod, the connecting pole
(5) tapped blind hole (51) is provided with, the connecting rod (4) is connected with the connecting pole (5) by the tapped blind hole (51) screw thread
Connect.
5. extraction element according to claim 1, it is characterised in that the cavity (1) and the cavity cover plate (6) use
Stainless steel is made.
6. extraction element according to claim 2, it is characterised in that be filled with airtight and watertight padding in the seal groove (91)
(911)。
7. a kind of lower shelf depreciation high frequency testing system of steep-front impact, it is characterised in that the system includes：Right will
Seek extraction element (10), signal processing module (20), signal transmission module (30) and the display terminal (40) described in 1-6；
The signal processing module (20) is connected with the electrical connector (7) of the extraction element (10), the signal transacting
Module (20) is used to carry out the initial measurement signal of the extraction element (10) extraction High frequency filter, output high frequency measurement letter
Number；
Described signal transmission module (30) one end is connected with the signal processing module (20), the other end and the display terminal
(40) connect；The signal transmission module (30) is used to transmit high-frequency signal measurement to the display terminal (40).
8. measuring system according to claim 7, it is characterised in that the signal processing module (20) includes High frequency filter
Circuit (201), the high-frequency filter circuit (201) are used to remove the low-frequency noise in initial measurement signal, export high frequency measurement
Signal.
9. measuring system according to claim 7, it is characterised in that the signal transmission module (30) includes analog-to-digital conversion
Device (301), the analog-digital converter (301) are used to high-frequency signal measurement being converted into what the display terminal (40) can identify
Data signal.
10. measuring system according to claim 9, it is characterised in that the signal transmission module (30) also includes electric light
Converter (302), optical-electrical converter (303) and optical cable (304)；The electrical to optical converter (302) is located at the analog-digital converter
(301) side, it is connected with the analog-digital converter (301), the optical-electrical converter (303) is located at the display terminal (40) one
Side, it is connected with the display terminal (40), the electrical to optical converter (302) passes through the light with the optical-electrical converter (303)
Cable (304) connects.
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| CN201710960090.2A CN107505552B (en) | 2017-10-16 | 2017-10-16 | Steep-front impacts lower shelf depreciation high-frequency signal extraction element and measuring system |
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