CN106898213A - A kind of concentric electrode static field simulation device and application method - Google Patents
A kind of concentric electrode static field simulation device and application method Download PDFInfo
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- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/18—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism
- G09B23/187—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for measuring instruments
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Abstract
The invention discloses a kind of concentric electrode static field simulation device and application method, include base, longitudinal moving mechanism, transverse moving mechanism, probe mechanism, concentric electrode plate, longitudinal moving mechanism includes two parallel longitudinal rails for being fixed on base both sides, a longitudinal sliding block is slidably fitted with every longitudinal rail respectively, longitudinal scale is further fixed on longitudinal rail；Transverse moving mechanism includes a cross slide way, and the two ends of cross slide way are separately fixed on a longitudinal sliding block, and a transverse slider is slidably fitted with cross slide way, and horizontal scale is further fixed on cross slide way；Probe mechanism is fixed on transverse slider；Concentric electrode plate is fixed on the center of base；Probe mechanism can realize moving freely and carrying out DATA REASONING longitudinally, laterally in moving range.The present invention improves the stability and reliability that instrument is used.
Description
Technical field：
The present invention relates to experiment teaching instrument field, and in particular to a kind of concentric electrode static field simulation device and user
Method.
Background technology：
Electrical body ambient static electricity field distribution is understood and grasped, it is particularly significant for some scientific researches and engineering technology, but typically
It is difficult to calculate electrostatic field distribution with theoretical method, also extremely difficult with instrument direct measurement, the measurement of electrostatic field is general
Using simulation, using steady high voltage system analog electrostatic field, electrostatic is determined by measuring the Potential Distributing in constant current field
The Potential Distributing of field.In Physics Practical Courses, " simulation of electrostatic field is described " experiment belongs to basic experiment, instrument
Number of users and frequency of use are very high, and according to teaching material requirement and course arrangement, concentric electrode structure makes in teaching practice
With the most extensive.
Steady high voltage system analog electrostatic field is used, steady high voltage system is set up, the electrode of current field is made using good conductor, and
Serve as conductive matter, such as conductive crystallite, running water, depleted copper sulfate solution much larger than the non-conductor of electrode resistance rate with resistivity
Deng the laboratory apparatus in practical application, water tank type analog electrostatic field mapping instrument and conductive micro-crystal electrostatic field plotter are relatively common.
A set of metal electricity is placed in the water tank type analog electrostatic field mapping generally square in cross-section tank of instrument basic structure, each tank
Pole, in bottom land perforate fixed electrode position, and is connected with groove external circuit.Tank injects running water as dielectric during experiment, puts
In on measurement bay, generally using double-deck probe as measurement, the instrument of record.Water tank type analog electrostatic field mapping instrument is sudden and violent in use
Reveal some problems, such as the non-design level adjusting means of sink structure, can not be by water layer leveling during experiment, it is impossible to ensure conductive Jie
The electrical conductivity of matter is uniform everywhere, therefore can form very big measurement error；Double-deck probe positioning is due to its design feature and can not
The foozle for avoiding, also can increase larger error to measurement；Although having taken leak-proof measure, after instrument is using a period of time,
Still often there is drainage at the perforation of electrode, and there is etching problem of the water to metal parts；Metal electrode in tank
Type and mutual alignment, once it is determined that can not change, flexibility that shortage is used etc..
Conductive micro-crystal electrostatic field plotter avoids the problem of more water tank type instrument, is led as bad using conductive crystallite
Body, data acquisition is carried out using synchronous probe, and measurement probe keeps contact to realize circuit communication with conductive crystallite plate, mobile synchronous
Probe finds satisfactory potential point, using recording probe records data acquisition.Because simple structure is easy to operate, quilt
It is widely used.But this kind of instrument also exposes some defects after long-term use：Measuring probe should be with battery lead plate perfect condition
Point contact, but due to being fractureed when technique realizes difficulty and prevents from using, measurement probe is generally using the brass bar of diameter 2mm or so
Material, probe tips are processed into the structure with point, in order that measurement probe is contacted with conducting medium stabilization when instrument is used, can be firmly
Pressing measurement contact device, also need with measurement probe back and forth stroke to find the position of required potential point, when instrument is using one section
After time, the tip portion for measuring probe can progressively be worn and torn into a rough face, while contact area can increase, be led
When causing survey measurements, the reading on display screen is unstable, fluctuates, so as to have found the equipotential of mistake in measurement
Point, makes depiction picture larger error occur；After measurement probe abrasion, probe height reduction so that probe is measured in experimentation
With record probe synchronism be affected, that is, wear and tear after upper and lower two probes same plummet face requirement it cannot be guaranteed that, make
Obtain measurement error and become big；Synchronous probe structure can introduce error, and synchronous probe is matched somebody with somebody by metallic supports such as base, handle and connection sheets
The compositions such as measurement probe, nut are closed, because synchronous probe is exposed in air for a long time, measurement probe is easy with the contact of connection sheet
Get rusty, cause the unstable of circuit on-state, simultaneously as the influence of iron rust, causes resistance to become big, deviate measured value true
It is real-valued, have a strong impact on experimental result；Additionally, synchronous probe with apparatus subject independently of one another, be separated from each other, placement platform is required
It is higher.
The content of the invention：
The present invention want solve technical problem be：
1st, innovative design product structure, probe movement and measurement, interrecord structure are integrated together, using measurement probe and record
Probe coaxial configuration, shortens measuring loop, reduces measurement arm contact resistance, eliminates that instrument is caused in itself takes point tolerance, carries
DATA REASONING precision high；
2nd, by the use of conductive crystallite rather than water as non-conductor make battery lead plate, it is to avoid water tank type analog electrostatic field instrument it is all
Many problems；
3rd, probe is measured after long-term use and battery lead plate sliding frictional wear is serious, probe contact area is uneven and increases
Caused data error is increased, and improves the contact structures reduction measurement probe degree of wear, solves to shorten measurement probe because of abrasion
Cause record probe and measurement probe to depart from same plummet face, influence the problem of measurement result.
Therefore, the present invention provides a kind of concentric electrode static field simulation device and application method, the device is applied to mould
Electrostatic field distribution between the straight coaxle cylinder shape electrode of plan method research length, is also applied for the Experiment of College Physics " simulation of electrostatic field
Describe ".
The technical solution adopted by the present invention is：
A kind of concentric electrode static field simulation device, it is characterised in that：Include base, longitudinal moving mechanism, transverse shifting
Mechanism, probe mechanism, concentric electrode plate, the longitudinal moving mechanism include two parallel longitudinal directions for being fixed on base both sides
Guide rail, is slidably fitted with a longitudinal sliding block respectively on every longitudinal rail, longitudinal scale is further fixed on longitudinal rail；It is described
Transverse moving mechanism includes a cross slide way, and the two ends of cross slide way are separately fixed on a longitudinal sliding block, laterally lead
A transverse slider is slidably fitted with rail, horizontal scale is further fixed on cross slide way；The probe mechanism is fixed on transverse direction
On sliding block；The concentric electrode plate is fixed on the center of base, and concentric electrode plate includes inside and outside electrode, inside and outside
Electrode is connected with positive and negative binding post respectively by binding post and wire；The probe mechanism can be realized vertical in moving range
To, horizontal move freely and carry out DATA REASONING.
A kind of described concentric electrode static field simulation device, it is characterised in that：The base includes metallic plate, four
Branch lower margin, four lower margins are fixed on metallic plate bottom by screw.
A kind of described concentric electrode static field simulation device, it is characterised in that：The interior electricity of the concentric electrode plate
The extremely circular positive electrode of diameter 10mm, dispatch from foreign news agency extremely internal diameter 140mm, the annular negative electrode of external diameter 160mm, interior electrode connection
Positive terminal, external electrode connection negative terminal.
A kind of described concentric electrode static field simulation device, it is characterised in that：The concentric electrode plate is generally
Square structure, except the region of inside and outside electrode covers one layer of conductive crystallite on concentric electrode plate, conductive crystallite is led for bad
Body, can set up steady high voltage system after internal and external electrode applied voltage.
A kind of described concentric electrode static field simulation device, it is characterised in that：The concentric electrode plate it is inside and outside
Electrode is fixed on base by battery lead plate fixture, and battery lead plate fixture is non-metal board, battery lead plate fixture and base it
Between leave space for the wire and binding post arranged between inside and outside electrode and positive and negative binding post, outside positive and negative binding post
Power supply positive and negative electrode can be connected, positive terminal is red, and negative terminal is black.
A kind of described concentric electrode static field simulation device, it is characterised in that：The probe mechanism includes measurement
Probe, record probe, handle, measurement probe, record probe are threadedly connected to the upper and lower ends of handle, measurement probe, note respectively
Record probe is coaxial configuration；The lower end suit of the handle is connected with contiguous block, and upper and lower ring is respectively equipped with handle and contiguous block
Shape step, is provided with spring between handle and contiguous block, the upper and lower end face of spring be against respectively the lower surface of ring-shaped step and under
On the upper surface of ring-shaped step；The probe mechanism is connected by contiguous block with transverse slider.Measurement probe is machined with circle
Pass binding post, is connected by the flexible terminal of wire termination with voltmeter one end of measurement current potential, the voltmeter other end with it is outer
Electrode is connected.
A kind of described concentric electrode static field simulation device, it is characterised in that：The measurement probe includes probe
Bar, metal balls, probe rod are progressively diminished using the structure of ladder transition, diameter, and the conical surface, the conical surface are processed into the end of probe rod
Front end processing endoporus, metal balls are positioned over endoporus and are closed up so that metal balls are unlikely to come off and can be in endoporus
Freely roll.
A kind of described concentric electrode static field simulation device, it is characterised in that：The metal balls use wearability
The good material of high and electric conductivity makes, and diminishes in technique allowed band ball diameter, and contact area can diminish, and help to carry
Data precision high.During instrument use, the ball and concentric electrode plate for measuring probe are realized being in rolling contact, and can solve the problem that
Sliding contact structural friction force causes greatly the problem of serious wear, it is possible to increase DATA REASONING precision, reduces experimental error, this
Outward, measurement probe takes threaded connection, conveniently replaced.
A kind of described concentric electrode static field simulation device, it is characterised in that：It is provided with the corner of the base
Four pillars, are fixed with a record place sheet of paper at the top of four pillars, through hole, through hole are provided with the middle part of record place sheet of paper
Inside and outside electrode with concentric electrode plate is concentric, and through-hole diameter size is more than dispatch from foreign news agency polar diameter 5mm；Measurement probe is in concentric circles
While measurement on battery lead plate, record probe carries out data record in recording sheet.
A kind of described concentric electrode static field simulation device, it is characterised in that：Also include one and be positioned over record
Place sheet of paper top, the pressing plate due to fastening recording sheet in test, the pressing plate is by thick sheet metal and the bullet of same size
Property rubber blanket bonding composition.
When apparatus of the present invention are used, operator grasps probe handle, and mobile longitudinally, laterally travel mechanism makes measurement
Probe is moved between inside and outside electrode, and lower handle compression spring is pressed downwards during operation so that measurement probe and concentric electrode plate
Contact, data record is carried out after finding suitable potential point, and while measurement probe is measured on concentric electrode plate, record is visited
Pin carries out data record in recording sheet.
Apparatus of the present invention provide two kinds of application methods, take a method and coordinate value method：
1st, a method is taken, will the potential point method that gathers and be tagged to recording sheet：
（1）Power supply is wired to the positive and negative binding post of concentric electrode static field simulation device, the suitable electricity of adjustment
Pressure value sets up steady high voltage system, and introduces measurement voltmeter；
（2）Recording sheet is positioned over the upper plane of record place sheet of paper, is fixed with pressing plate, prevent recording sheet from moving；
（3）Grasp probe handle and compression spring of exerting oneself downwards so that measurement probe is contacted with concentric electrode plate, while
Moving handle enables that measurement probe is longitudinally, laterally moved；
（4）Moving handle observes voltmeter simultaneously, when required potential point is reached, pulls up handle, and cause record probe
A mark point is left in recording sheet, that is, gathers and have recorded 1 data point, gathered data point is continued by that analogy；
（5）Data acquisition removes recording sheet after finishing, and is that foundation carries out drafting Electric Field Distribution on request with the data in recording sheet
The data processings such as figure, computation and measurement error.
2nd, coordinate value method, that is, the method for gathering and recording potential point transverse and longitudinal coordinate value：
（1）Power supply is wired to the positive and negative binding post of concentric electrode static field simulation device, the suitable electricity of adjustment
Pressure value sets up steady high voltage system, and introduces measurement voltmeter；
（2）Coordinate system is set up, the interior electrode centers point with concentric electrode plate is with probe vertical, horizontal moving direction as origin
Reference axis sets up rectangular coordinate system in length and breadth；
（3）Handle traverse measurement probe to interior electrode centers position is held, the pointer observed on longitudinally, laterally guide rail slide block should refer to
At 0 graduation mark of respective scale；
（4）Moving handle observes voltmeter simultaneously, when required potential point is reached, observes and records on longitudinally, laterally guide rail
Scale value corresponding to pointer, and recorded in the way of transverse and longitudinal coordinate value；
（5）The experimental data obtained using this method is the coordinate value of series of points, carries out drafting distribution map of the electric field, computation and measurement
These data can one by one be marked on graph paper during the data processings such as error, carry out follow-up data treatment, it is also possible to by this
The coordinate input computer of a little points, Data Processing in Experiment is completed by the data processing of computer software and graphics processing function.
The beneficial effects of the present invention are：
1st, the present invention devises a concentric electrode static field simulation device, take sliding block guide track structure as probe longitudinal direction,
Transverse moving mechanism, improves stability and reliability that instrument is used；
2nd, probe movement and measurement, interrecord structure are integrated together, using measurement probe and record probe coaxial configuration, are shortened
Measuring loop, reduces measurement arm contact resistance, and elimination instrument is caused in itself to take point tolerance, improves DATA REASONING precision；
3rd, measurement probe takes the mode gathered data point being in rolling contact, and greatly reduces the degree of wear of probe tips, can prevent
The problem that only data are unstable, error is excessive caused by probe abrasion, while instrument service life can be extended, is in rolling contact
Probe diameter can suitably increase, and can prevent from fractureing during use and deforming, and improve stability and reliability that instrument is used；
4th, this experimental provision can be realized taking two kinds of methods of data record of a method and coordinate value method, can be selected according to actual needs
Select, taking after data point is collected recording sheet by a method can directly carry out distribution map of the electric field drafting etc., and coordinate value method can sit data
Mark input computer, data processing is completed by the correlation function of data processing and PaintShop；
5th, using modularized design, maintenance and expansion upgrading is easily installed, when such as only with coordinate value method, recording sheet can be fixed
Module is removed, and if desired for the battery lead plate for changing other structures form, dismountable concentric electrode plate is changed, and need to only ensure peace
Dress hole position is consistent.
Brief description of the drawings：
Fig. 1 is the general structure schematic diagram of concentric electrode static field simulation device of the invention.
Fig. 2 is general structure schematic diagram of the concentric electrode static field simulation device of the invention with positive and negative binding post.
Fig. 3 is analogue means experimental principle circuit diagram.
Fig. 4 is the main structure diagram of probe mechanism.
Fig. 5 is the cross section structure diagram of probe mechanism.
Fig. 6 is the structural representation for measuring probe.
Fig. 7 is the partial enlarged drawing of Fig. 6.
Label in figure：
1- bases, 2- longitudinal rails, 3- cross slide ways, 4- pillars, 5- record place sheet of paper, 6- pressing plates, 7- probe mechanisms, 8- is same
Heart circle battery lead plate, 9- battery lead plate fixtures, the positive and negative binding posts of 10-, 11- longitudinal sliding blocks, 12- longitudinal directions scale, 13- transverse sliders,
14- transverse direction scales, 15- measurement probes, 16- record probes, 17- handles, 18- contiguous blocks, 19- springs, 20- probe rods, 21- gold
Category ball.
Specific embodiment：
As shown in figs. 1-7, a kind of concentric electrode static field simulation device, includes base 1, longitudinal moving mechanism, laterally moves
Motivation structure, probe mechanism 7, concentric electrode plate 8, longitudinal moving mechanism include two and parallel are fixed on the vertical of the both sides of base 1
Direction guiding rail 2, is slidably fitted with a longitudinal sliding block 11 respectively on every longitudinal rail 2, longitudinal mark is further fixed on longitudinal rail 2
Chi 12；Transverse moving mechanism includes a cross slide way 3, and the two ends of cross slide way 3 are separately fixed at a longitudinal sliding block 11
On, a transverse slider 13 is slidably fitted with cross slide way 3, horizontal scale 14 is further fixed on cross slide way 3；Probe mechanism
7 are fixed on transverse slider 13；Concentric electrode plate 8 is fixed on the center of base 1, concentric electrode plate 8 include it is interior,
External electrode, inside and outside electrode is connected with positive and negative binding post 10 respectively by binding post and wire；Probe mechanism 7 can be in mobile model
Enclose interior realization moving freely and carrying out DATA REASONING longitudinally, laterally.
Base 1 includes metallic plate, four lower margins, and four lower margins are fixed on metallic plate bottom by screw.
The interior electrode of concentric electrode plate 8 is the circular positive electrode of diameter 10mm, dispatch from foreign news agency extremely internal diameter 140mm, external diameter
The annular negative electrode of 160mm, interior electrode connects positive terminal, external electrode connection negative terminal.
The generally square structure of concentric electrode plate 8, the region on concentric electrode plate 8 except inside and outside electrode covers one
Layer conductive crystallite, conductive crystallite is non-conductor, and steady high voltage system can be set up after internal and external electrode applied voltage.
The inside and outside electrode of concentric electrode plate 8 is fixed on base 1 by battery lead plate fixture 9, battery lead plate fixture 9
It is non-metal board, space is left between battery lead plate fixture 9 and base 1 for arranging between inside and outside electrode and positive and negative binding post
Wire and binding post, positive and negative binding post outside can connect power supply positive and negative electrode, and positive terminal is red, negative terminal
It is black.
Probe mechanism 7 includes measurement probe 15, record probe 16, handle 17, and measurement probe 15, record probe 16 are distinguished
The upper and lower ends of handle 17 are threadedly connected to, measurement probe 15, record probe 16 are coaxial configuration；The lower end set load of handle 17
Contiguous block 18 is connected to, upper and lower ring-shaped step is respectively equipped with handle 17 and contiguous block 18, be provided between handle 17 and contiguous block 18
Spring 19, the upper and lower end face of spring 19 is against on the upper surface of the lower surface of ring-shaped step and lower ring-shaped step respectively；Probe
Mechanism 7 is connected by contiguous block 18 with transverse slider 13.
Measurement probe 15 includes probe rod 20, metal balls 21, probe rod 20 using the structure of ladder transition, diameter by
Step diminishes, and the conical surface is processed into the end of probe rod, and the front end processing endoporus of the conical surface, metal balls 21 are positioned over endoporus and are received
Mouthful so that ball is unlikely to come off and can freely be rolled in endoporus.
Metal balls 21 are made using the material that wearability is high and electric conductivity is good, and in technique allowed band ball diameter
Diminish, contact area can diminish, and be favorably improved data precision.During instrument use, measure probe ball with it is concentric
Circle battery lead plate is realized being in rolling contact, and can solve the problem that sliding contact structural friction force causes greatly the problem of serious wear, it is possible to increase
DATA REASONING precision, reduces experimental error, additionally, measurement probe takes threaded connection, it is conveniently replaced.
Four pillars 4 are installed, the top of four pillars 4 is fixed with a record place sheet of paper 5 on the corner of base 1,
Recording sheet to be placed and be provided with through hole in the middle part of 5 plates, and through hole is concentric with the inside and outside electrode of concentric electrode plate, and through-hole diameter size is big
In dispatch from foreign news agency polar diameter 5mm；While measurement probe is measured on concentric electrode plate, record probe is in the enterprising row data of recording sheet
Record.
Also include one and be positioned over record place sheet of paper 5 top, the pressing plate 6 due to fastening recording sheet in test,
The pressing plate 6 is constituted by thick sheet metal is Nian Jie with the resilient rubbber cushion of same size.
When apparatus of the present invention are used, operator grasps probe handle 17, and mobile longitudinally, laterally travel mechanism makes survey
Amount probe is moved between inside and outside electrode, and the compression spring 19 of lower handle 17 is pressed downwards during operation so that measurement probe and concentric circles
Battery lead plate is contacted, and data record is carried out after finding suitable potential point, while measurement probe is measured on concentric electrode plate,
Record probe carries out data record in recording sheet.
Apparatus of the present invention provide two kinds of application methods, take a method and coordinate value method：
1st, a method is taken, will the potential point method that gathers and be tagged to recording sheet：
（1）Power supply is wired to the positive and negative binding post 10 of concentric electrode static field simulation device, what adjustment was adapted to
Magnitude of voltage sets up steady high voltage system, and introduces measurement voltmeter；
（2）Recording sheet is positioned over the upper plane of record place sheet of paper 5, is fixed with pressing plate 6, prevent recording sheet from moving；
（3）Grasp probe handle 17 and compression spring 19 of exerting oneself downwards so that measurement probe 15 connects with concentric electrode plate 8
Touch, while moving handle 17 enables that measurement probe is longitudinally, laterally moved；
（4）Moving handle 17 observes voltmeter simultaneously, when required potential point is reached, pulls up handle, and cause that record is visited
Pin leaves a mark point in recording sheet, that is, gather and have recorded 1 data point, and gathered data point is continued by that analogy；
（5）Data acquisition removes recording sheet after finishing, and is that foundation carries out drafting Electric Field Distribution on request with the data in recording sheet
The data processings such as figure, computation and measurement error.
2nd, coordinate value method, that is, the method for gathering and recording potential point transverse and longitudinal coordinate value：
（1）Power supply is wired to the positive and negative binding post 10 of concentric electrode static field simulation device, what adjustment was adapted to
Magnitude of voltage sets up steady high voltage system, and introduces measurement voltmeter；
（2）Coordinate system is set up, the interior electrode centers point with concentric electrode plate 8 is with probe vertical, horizontal moving direction as origin
Reference axis sets up rectangular coordinate system in length and breadth；
（3）The traverse measurement probe of handle 17 to interior electrode centers position is held, the pointer observed on longitudinally, laterally guide rail slide block should
Refer at 0 graduation mark of respective scale；
（4）Moving handle 17 observes voltmeter simultaneously, when required potential point is reached, observes and records on longitudinally, laterally guide rail
Pointer corresponding to scale value, and recorded in the way of transverse and longitudinal coordinate value；
（5）The experimental data obtained using this method is the coordinate value of series of points, carries out drafting distribution map of the electric field, computation and measurement
These data can one by one be marked on graph paper during the data processings such as error, carry out follow-up data treatment, it is also possible to by this
The coordinate input computer of a little points, Data Processing in Experiment is completed by the data processing of computer software and graphics processing function.
Claims (11)
1. a kind of concentric electrode static field simulation device, it is characterised in that：Include base, longitudinal moving mechanism, laterally move
Motivation structure, probe mechanism, concentric electrode plate, the longitudinal moving mechanism include two and parallel are fixed on the vertical of base both sides
Direction guiding rail, is slidably fitted with a longitudinal sliding block respectively on every longitudinal rail, longitudinal scale is further fixed on longitudinal rail；Institute
State transverse moving mechanism and include a cross slide way, the two ends of cross slide way are separately fixed on a longitudinal sliding block, laterally
A transverse slider is slidably fitted with guide rail, horizontal scale is further fixed on cross slide way；The probe mechanism is fixed on horizontal stroke
To on sliding block；The concentric electrode plate is fixed on the center of base, and concentric electrode plate includes inside and outside electrode, interior,
External electrode is connected with positive and negative binding post respectively by binding post and wire；The probe mechanism can be realized in moving range
Moving freely and carrying out DATA REASONING longitudinally, laterally.
2. a kind of concentric electrode static field simulation device according to claim 1, it is characterised in that：The base includes
There are metallic plate, four lower margins, four lower margins are fixed on metallic plate bottom by screw.
3. a kind of concentric electrode static field simulation device according to claim 1, it is characterised in that：The concentric circles electricity
The interior electrode of pole plate for diameter 10mm circular positive electrode, dispatch from foreign news agency extremely internal diameter 140mm, the annular negative electrode of external diameter 160mm,
Interior electrode connects positive terminal, external electrode connection negative terminal.
4. a kind of concentric electrode static field simulation device according to claim 3, it is characterised in that：The concentric circles electricity
Pole plate generally square structure, the region on concentric electrode plate except inside and outside electrode covers one layer of conductive crystallite, conductive crystallite
It is non-conductor.
5. a kind of concentric electrode static field simulation device according to claim 4, it is characterised in that：The concentric circles electricity
The inside and outside electrode of pole plate is fixed on base by battery lead plate fixture, and battery lead plate fixture is non-metal board, and battery lead plate is fixed
Wire and binding post that space is used to arrange between inside and outside electrode and positive and negative binding post are left between part and base.
6. a kind of concentric electrode static field simulation device according to claim 1, it is characterised in that：The probe mechanism
Measurement probe, record probe, handle are included, measurement probe, record probe are threadedly connected to the upper and lower ends of handle, survey respectively
Amount probe, record probe are coaxial configuration；The lower end suit of the handle is connected with contiguous block, is set respectively on handle and contiguous block
There is upper and lower ring-shaped step, spring is provided between handle and contiguous block, the upper and lower end face of spring is against under ring-shaped step respectively
On the upper surface of end face and lower ring-shaped step；The probe mechanism is connected by contiguous block with transverse slider.
7. a kind of concentric electrode static field simulation device according to claim 6, it is characterised in that：The measurement probe
Include probe rod, metal balls, probe rod is progressively diminished using the structure of ladder transition, diameter, the end processing of probe rod
Into the conical surface, the front end processing endoporus of the conical surface, metal balls are positioned over endoporus and are closed up so that metal balls are unlikely come off and
Can freely be rolled in endoporus.
8. a kind of concentric electrode static field simulation device according to claim 7, it is characterised in that：The metal balls
Made using the material that wearability is high and electric conductivity is good.
9. a kind of concentric electrode static field simulation device according to claim 6, it is characterised in that：The four of the base
Four pillars are installed on angle, a record place sheet of paper is fixed with the top of four pillars, opened in the middle part of record place sheet of paper
There is through hole, through hole is concentric with the inside and outside electrode of concentric electrode plate, through-hole diameter size is more than dispatch from foreign news agency polar diameter 5mm；Measurement is visited
While pin is measured on concentric electrode plate, record probe carries out data record in recording sheet.
10. a kind of concentric electrode static field simulation device according to claim 6, it is characterised in that：Also include one
It is individual to be positioned over record place sheet of paper top, the pressing plate due to fastening recording sheet in test, the pressing plate by thick sheet metal with
The resilient rubbber cushion bonding composition of same size.
A kind of 11. application methods based on concentric electrode static field simulation device described in claim 1, it is characterised in that：Carry
It is respectively a method that takes and coordinate value method for two kinds of application methods：
（1）A method is taken, will the potential point method that gathers and be tagged to recording sheet：
1）Power supply is wired to the positive and negative binding post of concentric electrode static field simulation device, the suitable electricity of adjustment
Pressure value sets up steady high voltage system, and introduces measurement voltmeter；
2）Recording sheet is positioned over the upper plane of record place sheet of paper, is fixed with pressing plate, prevent recording sheet from moving；
3）Grasp probe handle and compression spring of exerting oneself downwards so that measurement probe is contacted with concentric electrode plate, while
Moving handle enables that measurement probe is longitudinally, laterally moved；
4）Moving handle observes voltmeter simultaneously, when required potential point is reached, pulls up handle, and cause that record probe exists
Recording sheet leaves a mark point, that is, gather and have recorded 1 data point, and gathered data point is continued by that analogy；
5）Data acquisition removes recording sheet after finishing, and is that foundation carries out drafting Electric Field Distribution on request with the data in recording sheet
Figure, computation and measurement error；
（2）Coordinate value method, that is, the method for gathering and recording potential point transverse and longitudinal coordinate value：
1）Power supply is wired to the positive and negative binding post of concentric electrode static field simulation device, the suitable electricity of adjustment
Pressure value sets up steady high voltage system, and introduces measurement voltmeter；
2）Coordinate system is set up, the interior electrode centers point with concentric electrode plate, as origin, is vertical with probe vertical, horizontal moving direction
Axis of abscissas sets up rectangular coordinate system；
3）Handle traverse measurement probe to interior electrode centers position is held, the pointer observed on longitudinally, laterally guide rail slide block should refer to
At 0 graduation mark of respective scale；
4）Moving handle observes voltmeter simultaneously, when required potential point is reached, observes and record the finger on longitudinally, laterally guide rail
Scale value corresponding to pin, and recorded in the way of transverse and longitudinal coordinate value；
5）The experimental data obtained using the above method is the coordinate value of series of points, carries out drafting distribution map of the electric field, calculates and survey
These data can one by one be marked on graph paper during amount error, carry out follow-up data treatment, it is also possible to the seat that these are put
Mark input computer, Data Processing in Experiment is completed by the data processing of computer software and graphics processing function.
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