CN108154773A - A kind of novel and multifunctional solenoid internal magnetic field distribution measuring experiment instrument - Google Patents
A kind of novel and multifunctional solenoid internal magnetic field distribution measuring experiment instrument Download PDFInfo
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- CN108154773A CN108154773A CN201810107338.5A CN201810107338A CN108154773A CN 108154773 A CN108154773 A CN 108154773A CN 201810107338 A CN201810107338 A CN 201810107338A CN 108154773 A CN108154773 A CN 108154773A
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- 238000002474 experimental method Methods 0.000 title claims abstract description 27
- 238000004804 winding Methods 0.000 claims abstract description 148
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 135
- 229910052802 copper Inorganic materials 0.000 claims abstract description 135
- 239000010949 copper Substances 0.000 claims abstract description 135
- 230000000694 effects Effects 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims description 5
- 238000013461 design Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract description 2
- 239000004744 fabric Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009897 systematic effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- QHGVXILFMXYDRS-UHFFFAOYSA-N pyraclofos Chemical compound C1=C(OP(=O)(OCC)SCCC)C=NN1C1=CC=C(Cl)C=C1 QHGVXILFMXYDRS-UHFFFAOYSA-N 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000005421 thermomagnetic effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- 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
- G09B23/181—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for electric and magnetic fields; for voltages; for currents
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/10—Plotting field distribution ; Measuring field distribution
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Abstract
The present invention relates to a kind of novel and multifunctional solenoid internal magnetic field distribution measuring experiment instruments, fix copper pipe, three-winding solenoid, solenoid and Hall plate including the forward and reverse terminal plate of three-winding solenoid, the forward and reverse terminal plate of Hall plate electric current supply lines, three-winding solenoid connecting valve terminal plate, three-winding solenoid current supply lines, Hall plate electric current supply lines, Hall plate and fix copper pipe support base slide track and electric cabinet；The solenoidal three-winding of three-winding is respectively inner coil, middle level coil and outer coil, three-winding draws two conducting wires respectively, inner coil draws three-winding common line and inner coil conducting wire, middle level coil draws three-winding common line and middle level winding wire, and outer coil draws three-winding common line and outer coil conducting wire.The beneficial effects of the invention are as follows：The overall construction design thinking of the present invention is novel, method is feasible, topology layout specification, rationally.
Description
Technical field
The present invention relates to experiment instrument more particularly to a kind of novel and multifunctional solenoid internal magnetic field distribution measuring experiment instruments.
Background technology
Solenoid magnet field distribution measurement is an important experimental project of university physics electricity part, and solenoidal field is divided
Cloth is not only related with coil turn, also related with by the size of current in coiling conducting wire, measures solenoidal field point at present
Although cloth experiment instrument has some laboratory apparatus devices in market and physics laboratory, but these experiment instruments are scarce there are some
It falls into：(1) solenoid used in experiment does not have fixing device；(2) experimenter is difficult that Hall sensor is accurately placed on to hub of a spool position
It puts and is moved in axis direction；(3) it can not can measure Distribution of Magnetic Field on solenoid axis on same experiment instrument and test
The experiment of verification magnetic field superposition (changing in other words with the number of turn) can be carried out again；(4) existing experimental provision partial structurtes design very not
Rationally.
Invention content
The purpose of the present invention is overcoming deficiency of the prior art, a kind of novel and multifunctional solenoid internal magnetic field point is provided
Cloth measurement experiment instrument.
In order to realize above-mentioned technical purpose, present invention employs following technical schemes：
A kind of novel and multifunctional solenoid internal magnetic field distribution measuring experiment instrument, including the forward and reverse wiring of three-winding solenoid
Plate, the forward and reverse terminal plate of Hall plate electric current supply lines, three-winding solenoid connecting valve terminal plate, three-winding solenoid current supply
Electric wire, Hall plate electric current supply lines, Hall plate fix copper pipe, three-winding solenoid, solenoid and Hall plate and fix copper pipe support
Seat slideway and electric cabinet；
The solenoidal three-winding of three-winding is respectively that inner coil, middle level coil and outer coil, three-winding are drawn respectively
Two conducting wires, inner coil draw three-winding common line and inner coil conducting wire, and middle level coil draws three-winding common line in
Layer winding wire, outer coil draw three-winding common line and outer coil conducting wire；Inner coil conducting wire, middle level coil are led
Line, outer coil conducting wire are connected on respectively in the corresponding lead of three-winding solenoid connecting valve terminal plate, by inner coil, middle level
The three-winding common line of coil and outer coil is connected on the same conducting wire of three-winding solenoid connecting valve terminal plate, three-winding spiral shell
Input terminal inner coil conducting wire, middle level winding wire, outer coil conducting wire and the three-winding of spool connecting valve terminal plate are public
It is connected on three-winding solenoid current supply lines, and is connected on electric cabinet together with line；In three-winding solenoid current supply lines
Centre is connect there are one the forward and reverse terminal plate of three-winding solenoid；Three-winding solenoid mark is provided with below three-winding solenoid
Ruler, solenoid fixed supporting seat bottom end are located at solenoid and are fixed in copper pipe support base slide track with Hall plate, solenoid and Hall plate
Fixed copper pipe support base slide track is equipped with track scale label and support base slide-bar slot；
Hall plate is fixed on Hall plate and fixes copper pipe front end, and Hall plate, which is fixed on copper pipe, is carved with copper pipe scale label, Hall
Piece fixed copper pipe end is fixed on copper pipe fixed supporting seat, and stops that the convex spiral shell of spiral shell fixes copper pipe, copper into Hall plate using copper pipe
Pipe fixed supporting seat bottom end is located at solenoid and is fixed in copper pipe support base slide track with Hall plate；Hall plate electric current supply lines is from Hall
Piece picks out across Hall plate and fixes copper pipe, copper pipe stops that spiral shell is convex and enters electric cabinet；Hall is connected among Hall plate electric current supply lines
The forward and reverse terminal plate of piece electric current supply lines.
As preferred：Three-winding solenoid fixes copper pipe one end by Hall plate and enters helical nozzle equipped with Hall plate；Three-winding
Solenoid is equipped with solenoid retainer plate, and solenoid retainer plate includes three-winding solenoid fixed seat, three-winding solenoid is fixed
Enclose shaft, three-winding solenoid activity retainer plate and three-winding solenoid retainer plate lock plunger；Three-winding solenoid passes through helical
Pipe fixed supporting seat is fixed on solenoid and is fixed in copper pipe support base slide track with Hall plate, and three-winding solenoid lower end is equipped with helical
Pipe lift supporting rod, solenoid lift supporting rod connect solenoid screw rod, solenoid screw rod by solenoid up and down adjustment spiral
Lower end is equipped with solenoid o support seat slide, and solenoid o support seat slide is fixed on spiral shell by solenoid o support seat slide fixed screw
Spool is fixed with Hall plate in copper pipe support base slide track.
As preferred：Hall plate fixed copper pipe end is fixed on using copper pipe fixed screw on copper pipe fixed supporting seat, and
Stop that the convex spiral shell of spiral shell fixes copper pipe into Hall plate using copper pipe；Hall plate fixes copper pipe lower end and is equipped with copper pipe lift supporting rod, copper pipe
By copper pipe up and down adjustment spiral connecting copper pipe up and down adjustment screw rod, copper pipe up and down adjustment screw rod lower end is set for lift supporting rod lower end
There is copper pipe support base slide, copper pipe support base slide is fixed on solenoid and Hall plate by copper pipe support base slide fixed screw
In fixed copper pipe support base slide track.
As preferred：Electric control box power switch, electric cabinet indicator light, Hall voltage are provided on electric cabinet and shows fluorescence
Screen, Hall current show that fluorescent screen, Hall current adjusting knob, coil current show fluorescent screen and coil current adjusting knob.
Beneficial effects of the present invention：
1st, overall construction design thinking of the invention is novel, method is feasible, topology layout specification, rationally；
2nd, three-winding spiral piping arrangement, i.e. inner coil, middle level coil and outer coil are employed, is equivalent to same by three
The solenoid of axis is set up；
3rd, three-winding solenoid fixed supporting seat and Hall plate fix copper pipe fixed supporting seat and up and down adjustment have been respectively adopted
Spiral, it is easy to which Hall plate (sensor) is accurately placed on hub of a spool position and axis direction by ground；
4th, it is fixed below three-winding solenoid with Hall plate and scale label is respectively provided on copper pipe, facilitate experimenter's root
It is calculated according to each scale label, Hall plate is moved to three-winding solenoid designated position；
5th, the present invention can measure on solenoid axis Distribution of Magnetic Field situation and by three-winding is distinguished wiring with it is same
When wiring, to carry out the experiment of magnetic field superposition (changing in other words with the number of turn)；
6th, can respectively three-winding be separately energized by employing three-winding solenoid connecting valve terminal plate, can also be to three
Coil is powered simultaneously, so as to complete the experiment of magnetic field superposition；
7th, employing forward and reverse terminal plate method can realize respectively to three-winding solenoid and Hall plate line current
Forward and reverse energization, to be conducive to eliminate due to volt age offset, Ai Tinghaosen effects, Lun Situo effects and inner discipline-Le Du
Systematic error caused by the additional potential that gram effect generates.
Description of the drawings
Fig. 1 is the front view of the present invention；
Fig. 2 is put for Hall plate to the front view of three-winding solenoid center；
Fig. 3 is the side view of three-winding solenoid, Hall plate fixation copper pipe and Hall plate；
Fig. 4 is the side view of three-winding solenoid, solenoid retainer plate, solenoid o support seat and slideway；
Fig. 5 is that Hall plate fixes copper pipe, copper pipe stops the convex side view with copper pipe support base of spiral shell；
Fig. 6 is the front view of electric cabinet；
Fig. 7 is the front view that solenoid fixes copper pipe support base slide track with Hall plate；
Fig. 8 is the schematic diagram of three-winding solenoid connecting valve terminal plate；
Fig. 9 is three-winding solenoid and the forward and reverse terminal plate vertical view of Hall plate electric current supply lines；
Figure 10 measures Hall voltage schematic diagram for Hall plate.
Reference sign：1st, the forward and reverse terminal plate of three-winding solenoid, 2, the forward and reverse wiring of Hall plate electric current supply lines
Plate, 3, three-winding solenoid connecting valve terminal plate, 4, three-winding solenoid current supply lines, 5, Hall plate electric current supply lines,
6th, Hall plate fixes copper pipe, 6-1, Hall plate, 6-2, copper pipe scale label, 6-3, copper pipe fixed screw, 6-4, copper pipe blocking spiral shell
It is convex, 6-5, copper pipe fixed supporting seat, 6-51, copper pipe support base slide, 6-52, copper pipe support base slide-bar, 6-53, copper pipe support base
Slide fixed screw, 6-54, copper pipe up and down adjustment screw rod, 6-55, copper pipe up and down adjustment spiral, 6-56, copper pipe lift supporting rod,
7th, three-winding solenoid, 7-1, inner coil, 7-10, three-winding common line, 7-11, inner coil conducting wire, 7-2, middle level coil,
7-22, middle level winding wire, 7-3, outer coil, 7-33, outer coil conducting wire, 7-4, three-winding solenoid scale, 7-5, suddenly
Your piece enters helical nozzle, and 7-7, solenoid fixed supporting seat, 7-51, solenoid o support seat slide, 7-52, solenoid o support seat are slided
Axis, 7-53, solenoid o support seat slide fixed screw, 7-54, solenoid screw rod, 7-55, solenoid up and down adjustment spiral, 7-
56th, solenoid lift supporting rod, 7-6, solenoid retainer plate, 7-61, three-winding solenoid fixed seat, 7-62, three-winding helical
Pipe retainer plate shaft, 7-63, three-winding solenoid activity retainer plate, 7-64, three-winding solenoid retainer plate lock plunger, 8, helical
Pipe and Hall plate fix copper pipe support base slide track, 8-1, track scale label, 8-2, support base slide-bar slot, and 9, electric cabinet, 9-1,
Electric control box power switch, 9-2, electric cabinet indicator light, 9-3, Hall voltage show fluorescent screen, and 9-4, Hall current show fluorescence
Screen, 9-5, Hall current adjusting knob, 9-6, coil current show fluorescent screen, 9-7, coil current adjusting knob.
Specific embodiment
The present invention is described further with reference to embodiment.The explanation of following embodiments is merely used to help understand this
Invention.It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, also
Can to the present invention some improvement and modification can also be carried out, these improvement and modification also fall into the protection domain of the claims in the present invention
It is interior.
The novel and multifunctional solenoid internal magnetic field distribution measuring experiment instrument includes：The forward and reverse wiring of three-winding solenoid
The forward and reverse terminal plate 2 of plate 1, Hall plate electric current supply lines, three-winding solenoid connecting valve terminal plate 3, three-winding solenoid electricity
Stream supply lines 4, Hall plate electric current supply lines 5, Hall plate are fixed copper pipe 6, three-winding solenoid 7, solenoid and Hall plate and are fixed
Copper pipe support base slide track 8, electric cabinet 9.
Three-winding solenoid 7 is the winding identical three layer lines circle of three numbers of turn, respectively inner coil on Ji Quan
7-1, middle level coil 7-2 and outer coil 7-3, three-winding draw two conducting wires respectively, and it is public that inner coil 7-1 draws three-winding
Line 7-10 and inner coil conducting wire 7-11, middle level coil 7-2 draw three-winding common line 7-10 and middle level winding wire 7-22, outside
Layer line circle 7-3 draws three-winding common line 7-10 and outer coil conducting wire 7-33.Inner coil conducting wire 7-11, middle level coil are led
Line 7-22, outer coil conducting wire 7-33 are connected on respectively in the corresponding lead of three-winding solenoid connecting valve terminal plate 3, by internal layer
Coil 7-1, middle level coil 7-2 and outer coil 7-3 three-winding common line 7-10 be connected on three-winding solenoid connecting valve and connect
On the same root conducting wire of line plate 3, the input terminal inner coil conducting wire 7-11 of three-winding solenoid connecting valve terminal plate 3, middle level
Winding wire 7-22, outer coil conducting wire 7-33 and three-winding common line 7-10 are connected on the power supply of three-winding solenoid current together
On the conducting wire of line 4, and it is connected on electric cabinet 9.Three-winding solenoid there are one being connect among three-winding solenoid current supply lines 4
Forward and reverse terminal plate 1, for changing the current direction of inner coil 7-1, middle level coil 7-2 and outer coil 7-3.Three-winding spiral shell
Spool 7 fixes support by solenoid retainer plate 7-6 and solenoid fixed supporting seat 7-7, is provided with below three-winding solenoid 7
Three-winding solenoid scale 7-4, solenoid fixed supporting seat 7-7 bottom ends are located at solenoid and fix copper pipe support base cunning with Hall plate
On road 8, solenoid fixes copper pipe support base slide track 8 with Hall plate and is equipped with track scale label 8-1 and support base slide-bar slot 8-
2.As shown in Fig. 1,2,3,4,7,8,9.
Hall plate 6-1 is fixed on Hall plate (for square) and fixes 6 front end of copper pipe, Hall plate, which is fixed on copper pipe 6, to be carved with
Copper pipe scale label 6-2, Hall plate are fixed 6 end of copper pipe and are fixed on copper pipe fixed supporting seat 6-5, and fix spiral shell using copper pipe
Silk 6-3 is fixed, and is come off to prevent Hall plate from fixing copper pipe 6, and 6 end of copper pipe is fixed using the convex 6-4 of copper pipe blocking spiral shell in Hall plate
Spiral shell fixes copper pipe 6 into Hall plate, and copper pipe fixed supporting seat 6-5 bottom ends are located at solenoid and fix copper pipe support base slide track with Hall plate
On 8.Hall plate electric current supply lines 5 is picked out from Hall plate 6-1 across Hall plate fixes copper pipe 6, the copper pipe blocking convex 6-4 of spiral shell enters electricity
Control case 9.The forward and reverse terminal plate 2 of Hall plate electric current supply lines is connected among Hall plate electric current supply lines 5.According to experiment purpose and
Pass through the simple computation of copper pipe scale label 6-2, solenoid scale label 7-4 and track scale label 8-1, it can be deduced that Hall
Piece 6-1 is in the accurate location of three-winding solenoid 7.Solenoid fixed supporting seat 7-7 and copper pipe fixed supporting seat 6-5 are in solenoid
It is fixed in copper pipe support base slide track 8 during movement with Hall plate, it can be by respectively to the spiral shell of solenoid fixed supporting seat 7-7
The copper pipe up and down adjustment spiral 6-55 of spool up and down adjustment spiral 7-55 and copper pipe fixed supporting seat 6-5 carries out up and down adjustment, makes
Hall plate fix copper pipe 6 overlapped with 7 central axis of three-winding solenoid.It is fixed in solenoid fixed supporting seat 7-7 with copper pipe
After the location determination of support base 6-5, i.e. after the accurate locations of the corresponding three-winding solenoids 7 of Hall plate 6-1 determines, it can also adopt
Copper pipe is fixed into support respectively with copper pipe support base slide fixed screw 6-53 and solenoid o support seat slide fixed screw 7-53
Seat 6-5 and solenoid fixed supporting seat 7-7 is locked in solenoid and is fixed in copper pipe support base slide track 8 with Hall plate.As Fig. 1,2,
4th, shown in 5,7.
Three-winding solenoid 7 fixes 6 one end of copper pipe by Hall plate and enters helical nozzle 7-5 equipped with Hall plate；Three-winding helical
Pipe 7 is equipped with solenoid retainer plate 7-6, and solenoid retainer plate 7-6 includes three-winding solenoid fixed seat 7-61, three-winding helical
Pipe retainer plate shaft 7-62, three-winding solenoid activity retainer plate 7-63 and three-winding solenoid retainer plate lock plunger 7-64；Three
Coil spiral pipe 7 is fixed on solenoid by solenoid fixed supporting seat 7-7 and is fixed in copper pipe support base slide track 8 with Hall plate,
7 lower end of three-winding solenoid be equipped with solenoid lift supporting rod 7-56, solenoid lift supporting rod 7-56 by solenoid above and below
It adjusts spiral 7-55 connections solenoid screw rod 7-54, solenoid screw rod 7-54 lower ends and is equipped with solenoid o support seat slide 7-51, spiral shell
Spool support base slide 7-51 is fixed on solenoid and Hall plate fixed copper by solenoid o support seat slide fixed screw 7-53
In pipe support base slide track 8.As shown in Fig. 1,2,4.
Hall plate is fixed 6 end of copper pipe and is fixed on copper pipe fixed supporting seat 6-5, and adopt using copper pipe fixed screw 6-3
With the copper pipe blocking convex 6-4 spiral shells of spiral shell copper pipe 6 is fixed into Hall plate；Hall plate fixes 6 lower end of copper pipe and is equipped with copper pipe lift supporting rod 6-
56, copper pipe lift supporting rod 6-56 lower ends pass through copper pipe up and down adjustment spiral 6-55 connecting copper pipe screw rod 6-54, copper pipe screw rod 6-
54 lower ends pass through copper pipe support base slide fixed screw 6-53 equipped with copper pipe support base slide 6-51, copper pipe support base slide 6-51
Solenoid is fixed on to fix in copper pipe support base slide track 8 with Hall plate.As shown in Figure 1,5.
Electric control box power switch 9-1, electric cabinet indicator light 9-2, Hall voltage are provided on electric cabinet 9 and shows fluorescent screen 9-
3rd, Hall current shows that fluorescent screen 9-4, Hall current adjusting knob 9-5, coil current show fluorescent screen 9-6, coil current tune
Save knob 9-7.As shown in Figure 6.Finally various pieces planning is fixed on an experimental plate respectively.
First, Hall chip architecture is with measuring magnetic principles
As shown in Figure 10, Hall plate 6-1 connection Hall plate electric currents supply lines 5 is connected to electric cabinet 9, led to Hall plate 6-1
Electric current I, solenoid internal magnetic field B pass perpendicularly through Hall plate 6-1 surfaces, at this point, positive electron (+e) inside Hall plate 6-1, negative
Electronics (- e) is caused deflection by Loulun magnetism effect, and this deflection causes to generate on the direction in vertical current and magnetic field positive and negative
Charge buildup, i.e., form positive charge on one side of Hall plate 6-1C, and one side of A forms negative electrical charge, it is additional that one is just formed after stablizing
Transverse electric field EH.So as to generate a Hall voltage V in Hall plate 6-1 both lateral sides (A, C both ends)H：
Proportionality coefficientReferred to as Hall coefficient.It can be seen that：Hall voltage is measured by using Hall plate 6-1
VH, the Hall voltage of electric cabinet 9 is shown can show Hall plate 6-1 on solenoid axis on different location on fluorescent screen 9-3
Hall voltage VH。
2nd, laboratory operating procedures
1st, adjusting and mode of connection
(1) adjusting method of electric cabinet：The related line of electric cabinet 9 is connected, opens electric control box power switch 9-1,
Electric cabinet indicator light 9-2 is bright, respectively rotary Hall current adjusting knob 9-5 and coil current adjusting knob 9-7, is allowed to Hall electricity
Stream shows that fluorescent screen 9-4 shows that required electric current is tested in fluorescent screen 9-6 displays with coil current, and Hall voltage shows fluorescent screen
9-3 will show that Hall plate 6-1 is in the Hall voltage V of 7 corresponding position of three-winding solenoidH；
(2) mode of connection of three-winding solenoid connecting valve terminal plate：Respectively by inner coil 7-1, middle level coil 7-2
It is connected on the three-winding common line 7-10 of outer coil 7-3 on the same root conducting wire of three-winding solenoid connecting valve terminal plate 3,
Inner coil conducting wire 7-11, middle level winding wire 7-22, outer coil conducting wire 7-33 are respectively connected to the connection of three-winding solenoid
On a, b, c binding post on switch connection board 3, it is allowed to inner coil 7-1, electric current on middle level coil 7-2 and outer coil 7-3
Flow direction is consistent always；
(3) three-winding solenoid and the forward and reverse terminal plate of Hall plate line current：Three-winding solenoid current supply lines 4
Connector lug 15- connector lugs 10, connector lug 16- connector lugs 9 close to 7 one end of three-winding solenoid are correspondingly connected with, close to electric cabinet 9
The connector lug 18- connector lugs 7, connector lug 17- connector lugs 8 of one end are correspondingly connected with, connector lug 1- connector lugs 6, connector lug when just connecing
2- connector lugs 5 are correspondingly connected with, and connector lug 1- connector lugs 4, connector lug 2- connector lugs 3 are correspondingly connected with during reversal connection.Hall plate electric current supplies
Connector lug 12- connector lug 9, connector lug 11- connector lug 10 of the electric wire 5 close to Hall plate 6-1 one end are correspondingly connected with, close to electric cabinet
The connector lug 13- connector lugs 8, connector lug 14- connector lugs 7 of 9 one end are correspondingly connected with, connector lug 1- connector lugs 6, connector lug when just connecing
2- connector lugs 5 are correspondingly connected with, and connector lug 1- connector lugs 4, connector lug 2- connector lugs 3 are correspondingly connected with during reversal connection.It should be noted that：
Using the terminal plate using positive and negative connection, that is, change IsWith the direction of B, the purpose is to eliminate since fuel factor and thermo-magnetic effect are drawn
Systematic error caused by the additional potential that the various pairs of effects risen generate.
2nd, regulating step is tested
Magnetic field is with sample current and Hall plate change in location relationship experiments step on 2.1 solenoid axis
(1) circuit is connected by Fig. 1, is tested according to the Distribution of Magnetic Field situation in target, such as measurement solenoid axis that measures,
Can be only with a coil (inner coil 7-1), it can be by the K on three-winding solenoid connecting valve terminal plate 31It is connected on a,
Inner coil 7-1 in this way is connected；
(2) the electric control box power switch 9-1 of electric cabinet 9 is opened, electric cabinet indicator light 9-2 is bright, according to the design before experiment
It is required that rotary Hall current adjusting knob 9-5 and coil current adjusting knob 9-7, sets Hall current and coil current respectively
Size, magnitude numerical value can show that fluorescent screen 9-4 shows that fluorescent screen 9-6 is shown respectively with coil current by Hall current
Come；
(3) according to the size for measuring magnetic field at different location on 7 axis of three-winding solenoid, along solenoid and Hall plate
Fixed 8 direction movement copper pipe fixed supporting seat 6-5 of copper pipe support base slide track, experimenter according to each scale label and to be measured three
Hall plate 6-1 is accurately placed at position to be measured on 7 axis of three-winding solenoid by the magnetic field position on 7 axis of line solenoid
It measures, as shown in Figure 2；
(4) it reads and fills in Hall plate 6-1 and be transmitted on electric cabinet 9 at different location on three line solenoids, 7 axis
Hall voltage VH, these Hall voltages VHIt can show in Hall voltage and be shown one by one on fluorescent screen 9-3；
(5) according to Hall voltage VHWith the relationship in magnetic fieldAnd the experimental data in table, three are drawn out respectively
7 axis centre magnetic field of coil spiral pipe is with Hall current (B-Is) on 7 axis of variation relation curve and three-winding solenoid
Magnetic field with different location (B-x) on 7 axis of three-winding solenoid change curve.
The experimental procedure of 2.2 solenoid internal magnetic field additivities
(6) as shown in Figure 1, circuit is connected, target is measured according to experiment, that is, is measured on 7 axis of three-winding solenoid
Magnetic field with position variation relation curve, by the three-winding common line of inner coil 7-1, middle level coil 7-2 and outer coil 7-3
7-10 is connected on the same root conducting wire of three-winding solenoid connecting valve terminal plate 3, by inner coil conducting wire 7-11, middle level coil
Conducting wire 7-22, outer coil conducting wire 7-33 are respectively connected to a, b, c binding post on three-winding solenoid connecting valve terminal plate 3
On；
(7) by the K on three-winding solenoid connecting valve terminal plate 31、K2、K3Be respectively connected on a, b, c binding post and
K1、K2It is connected on a, b binding post or K simultaneously1、K2、K3It is connected on a, b, c binding post simultaneously, measures three-winding solenoid 7 respectively
Inner coil 7-1, middle level coil 7-2 and outer coil 7-3 or simultaneously after corresponding concatenation, on three line solenoid axis magnetic field with
The variation relation of position；
(8) it according to as above connection, is tested according to " magnetic field is with sample current and change in location relationship on 2.1 solenoid axis "
Step repeats the experimental procedure of (3)-(5) respectively, measures inner coil 7-1, the middle level coil of three-winding solenoid 7 respectively
Hall voltage V on 7-2 and outer coil 7-3 axis at different locationHAnd inner coil 7-1, middle level coil 7-2 or interior
In the case of layer line circle 7-1, middle level coil 7-2 and outer coil 7-3 are concatenated respectively on three line solenoid axis at different location
Hall voltage VH, and according to Hall voltage VHWith the relationship in magnetic fieldMagnetic field is converted into, is recorded in drawn before testing
In table；
(9) according to the Hall voltage V of chartingHExperimental data is converted into magnetic field (B) and corresponding position (x) number
According to being fastened in approximately the same plane rectangular co-ordinate, relation curve of the magnetic field with change in location (B-x) drawn out respectively, according to magnetic field
With the relation curve of change in location (B-x) come examine magnetic field whether have additivity, i.e., by observe with calculate see and magnetic field
Whether the sum in corresponding each point magnetic field is equal to.
3rd, experimental principle
Measure solenoid central magnetic field and Hall current relationship (B-Is), as long as being measured in the position using Hall plate 6-1
Go out Hall voltage and Hall current (VH-Is) relationship, Hall voltage VHUsing formulaIt is converted into magnetic field B；Similarly, it to survey
Magnetic field is with change in location (Distribution of Magnetic Field) (B-X) relationship on amount solenoid axis, as long as measuring Hall electricity on solenoid axis
Pressure is with change in location (VH- X) relationship；And measuring the additivity experiment in magnetic field on solenoid axis, i.e., different coils are surveyed respectively
Its magnetic field is measured, then multiple coils are together in series and measure its magnetic field, sees whether it is equal to the magnetic of each coil under the same conditions
The sum of field, that is, different coils measure its Hall voltage respectively, then multiple coils are together in series and measure its Hall voltage, see
Whether it is equal to the sum of the Hall voltage of each coil under the same conditions.
When measuring Hall voltage, employ four kinds of connections, i.e. Hall current positive-negative connected, coil (excitation) electric current it is positive and negative
It connects, four formed kind connection, it is V respectively that can obtain 4 voltages1、V2、V3、V4, Hall voltage is：
It is 2L, number of turn N for length according to Biot-Savart law1, radius is that the solenoid of R leaves central point X
The magnetic induction intensity at place is：
Wherein, u0=4 π × 10-7N/A2, it is space permeability；N=N1/ 2L is the number of turn of unit length；IMFor solenoid
Interior electric current；The solenoidal N of this experiment1=1800 circles, solenoid length L=180mm.
For " endless " solenoid, L ＞ ＞ R, so B0=μ0n IM, for " semi-infinite long " solenoid, at endpoint
There are X=L, and L ＞ ＞ R, so BL=μ0n I/2。
Claims (4)
1. a kind of novel and multifunctional solenoid internal magnetic field distribution measuring experiment instrument, it is characterised in that：Including three-winding solenoid
Forward and reverse terminal plate (1), the forward and reverse terminal plate of Hall plate electric current supply lines (2), three-winding solenoid connecting valve terminal plate
(3), three-winding solenoid current supply lines (4), Hall plate electric current supply lines (5), Hall plate fix copper pipe (6), three-winding spiral shell
Spool (7), solenoid and Hall plate fix copper pipe support base slide track (8) and electric cabinet (9)；
The three-winding of three-winding solenoid (7) is respectively inner coil (7-1), middle level coil (7-2) and outer coil (7-3),
Three-winding draws two conducting wires respectively, and inner coil (7-1) draws three-winding common line (7-10) and inner coil conducting wire (7-
11), middle level coil (7-2) draws three-winding common line (7-10) and middle level winding wire (7-22), and outer coil (7-3) is drawn
Three-winding common line (7-10) and outer coil conducting wire (7-33)；By inner coil conducting wire (7-11), middle level winding wire (7-
22), outer coil conducting wire (7-33) is connected on respectively in the corresponding lead of three-winding solenoid connecting valve terminal plate (3), by
Layer line circle (7-1), middle level coil (7-2) and the three-winding common line (7-10) of outer coil (7-3) are connected on three-winding solenoid
On the same conducting wire of connecting valve terminal plate (3), the input terminal inner coil conducting wire of three-winding solenoid connecting valve terminal plate (3)
(7-11), middle level winding wire (7-22), outer coil conducting wire (7-33) and three-winding common line (7-10) are connected on three together
On coil spiral tube current supply lines (4), and it is connected on electric cabinet (9)；In three-winding solenoid current supply lines (4) indirectly
There are one the forward and reverse terminal plates of three-winding solenoid (1)；Three-winding solenoid scale is provided with below three-winding solenoid (7)
(7-4), solenoid fixed supporting seat (7-7) bottom end are located at solenoid and are fixed in copper pipe support base slide track (8) with Hall plate, helical
Pipe fixes copper pipe support base slide track (8) with Hall plate and is equipped with track scale label (8-1) and support base slide-bar slot (8-2)；
Hall plate (6-1) is fixed on Hall plate and fixes copper pipe (6) front end, and Hall plate, which is fixed on copper pipe (6), is carved with copper pipe scale quarter
It spends (6-2), Hall plate is fixed copper pipe (6) end and is fixed on copper pipe fixed supporting seat (6-5), and convex using copper pipe blocking spiral shell
(6-4) spiral shell fixes copper pipe (6) into Hall plate, and copper pipe fixed supporting seat (6-5) bottom end is located at solenoid and fixes copper pipe with Hall plate
In support base slide track (8)；Hall plate electric current supply lines (5) picks out across Hall plate from Hall plate (6-1) and fixes copper pipe (6), copper
Pipe stops spiral shell convex (6-4) into electric cabinet (9)；It is positive and negative that Hall plate electric current supply lines is connected among Hall plate electric current supply lines (5)
To terminal plate (2).
2. novel and multifunctional solenoid internal magnetic field distribution measuring experiment instrument according to claim 1, it is characterised in that：Three
Coil spiral pipe (7) fixes copper pipe (6) one end by Hall plate and enters helical nozzle (7-5) equipped with Hall plate；Three-winding solenoid (7)
Solenoid retainer plate (7-6) is equipped with, solenoid retainer plate (7-6) includes three-winding solenoid fixed seat (7-61), three-winding
Solenoid retainer plate shaft (7-62), three-winding solenoid activity retainer plate (7-63) and three-winding solenoid retainer plate lock plunger
(7-64)；Three-winding solenoid (7) is fixed on solenoid by solenoid fixed supporting seat (7-7) and fixes copper pipe branch with Hall plate
It supports on seat slideway (8), three-winding solenoid (7) lower end is equipped with solenoid lift supporting rod (7-56), solenoid lift supporting rod
(7-56) connects solenoid screw rod (7-54) by solenoid up and down adjustment spiral (7-55), and solenoid screw rod (7-54) lower end is set
There is solenoid o support seat slide (7-51), solenoid o support seat slide (7-51) passes through solenoid o support seat slide fixed screw
(7-53) is fixed on solenoid and is fixed in copper pipe support base slide track (8) with Hall plate.
3. novel and multifunctional solenoid internal magnetic field distribution measuring experiment instrument according to claim 1, it is characterised in that：Suddenly
Your piece is fixed copper pipe (6) end and is fixed on copper pipe fixed supporting seat (6-5) using copper pipe fixed screw (6-3), and using copper
Pipe stops that convex (6-4) spiral shell of spiral shell fixes copper pipe (6) into Hall plate；Hall plate fixes copper pipe (6) lower end and is equipped with copper pipe lift supporting rod
(6-56), copper pipe lift supporting rod (6-56) lower end pass through copper pipe up and down adjustment spiral (6-55) connecting copper pipe up and down adjustment screw rod
(6-54), copper pipe up and down adjustment screw rod (6-54) lower end are equipped with copper pipe support base slide (6-51), copper pipe support base slide (6-
51) solenoid is fixed on by copper pipe support base slide fixed screw (6-53) and fixes copper pipe support base slide track (8) with Hall plate
On.
4. novel and multifunctional solenoid internal magnetic field distribution measuring experiment instrument according to claim 1, it is characterised in that：Electricity
Be provided in control case (9) electric control box power switch (9-1), electric cabinet indicator light (9-2), Hall voltage show fluorescent screen (9-3),
Hall current shows that fluorescent screen (9-4), Hall current adjusting knob (9-5), coil current show fluorescent screen (9-6) and coil electricity
Flow adjusting knob (9-7).
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| CN108682247A (en) * | 2018-08-09 | 2018-10-19 | 浙江大学城市学院 | A kind of copper rod stress demonstrating and quantitative measurment experiment instrument in magnetic field |
| CN108732520A (en) * | 2018-08-02 | 2018-11-02 | 河南师范大学 | A kind of instrument for measuring the distribution of energization solenoid internal magnetic field |
| CN109285431A (en) * | 2018-11-02 | 2019-01-29 | 安徽新华学院 | A kind of demonstration Biot-Sa farr's law experimental system and experimental method |
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