CN109192018A - Circuit theory experimental box and its experimental method - Google Patents
Circuit theory experimental box and its experimental method Download PDFInfo
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- CN109192018A CN109192018A CN201811248043.6A CN201811248043A CN109192018A CN 109192018 A CN109192018 A CN 109192018A CN 201811248043 A CN201811248043 A CN 201811248043A CN 109192018 A CN109192018 A CN 109192018A
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- 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
- G09B23/183—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for circuits
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Abstract
The invention discloses a kind of circuit theory experimental box and its experimental methods, experimental box body configures experimental box panel, built-in power supply and multiple experiments detect table, circuit board front used by experimental box panel and built-in power supply is at least provided with front wiring layer, front silk-screen layer and to be distributed shape include digital voltmeter at being arranged above and below, digital ammeter, multiple experiments of digital power table and digital power meter detect table, experimental box panel reverse side at least sets back wiring layer and wiring welding layer, each experiment detection table is electrically connected with experimental box panel, erecting and welding has the circuit theory component that recognition capability is judged for improving student experimenting teaching cognition in experimental box panel front, front silk-screen layer sets circuit theory line silk-screen layer and letter symbol silk-screen layer；Authentication module and/or test module are set in experimental box panel front.Equipment input cost is low, small in size to occupy little space, compact-sized, more intuitive, easy to maintain using operating.
Description
Technical field
The present invention relates to a kind of Teaching Experiment Box, more particularly, to a kind of circuit theory experimental box and its experimental method.
Background technique
The existing experiment porch of circuit principle teaching has put into teaching many years, and serious aging is required every year in laboratory
It is safeguarded before, but class hour still Frequent Troubles on laboratory.The experiment porch is bulky, thus using pattern experiment
Component is numerous, occupies a large amount of lab space.And as Link of Practice Teaching is increasingly paid attention to, experiment open up subject and
Class hour also follows and is substantially improved, this also causes originally nervous practical teaching place to seem more awkward.And according to new
The buying of teaching equipment is put into, then certainly will bring bigger teaching equipment cost input again, be easy to cause the investment of teaching equipment
Account for the consumption more ratios of teaching fund.
Summary of the invention
The present invention is to solve available circuit theory teaching platform that there is platform by volume is huge, occupies a large amount of laboratory
Ground space, is unfavorable for effectively following and opens up being substantially improved for subject and class hour, directly buying novel circuit theory teaching equipment, then holds
A kind of circuit principle teaching equipment input cost for easily leading to the statuses such as circuit principle teaching equipment investment is big and providing is low, volume
Small occupied space is small, it is compact-sized, using operate it is more intuitive, easy to maintain, improve training student for experiment analysis with
The circuit theory experimental box and its experimental method of the circuit principle teaching time efficiency of measurement.
The present invention is used to solve above-mentioned technical problem the specific technical proposal is: a kind of circuit theory experimental box, packet
Include experimental box body, it is characterised in that: experimental box body configures experimental box panel, built-in power supply and multiple experiments and detects table, real
Circuit board front used by tryoff panel and built-in power supply is at least provided with front wiring layer, front silk-screen layer and at upper and lower
Multiple experiments of arranged distribution shape detect table, and experimental box panel reverse side at least sets back wiring layer and wiring welding layer, Duo Geshi
Testing detection table includes digital voltmeter, digital ammeter, digital power table and digital power meter, each experiment detection table
It is electrically connected with experimental box panel, installation is connected with for improving student experimenting teaching cognition judgement identification in experimental box panel front
The circuit theory component of ability, front silk-screen layer are equipped with the circuit theory line silk-screen layer for Experiment of Electrical Circuits principle connection figure
With for the letter symbol silk-screen layer for identifying each component information used of imparting knowledge to students, circuit theory line silk-screen layer is for reality of imparting knowledge to students
It tests between each component for showing composition experimental box face on-board circuitry principle component and is electrically connected principle, front wiring layer is used for
The practical electric wiring connection structure and wires design feature structure of teaching experiment displaying analog module；Built-in power supply
Including providing the three phase mains of working power, constant voltage source, constant-current supply, adjustable for experimental box panel and multiple experiment detection tables
Constant voltage source and adjustable constant-flow power supply；Set in experimental box panel front provide circuit principle teaching needed for authentication module and/or
Test module, the authentication module and/or test module are mounted in experimental box panel using the component for constituting module is independently bright
Installation distributed architecture on front sets the detection being electrically connected with detecting instrument on the authentication module and/or test module
Connector and spare component.According to the circuit theory religion in the more preferable suitable laboratory place space of circuit principle teaching demand self-control
Experimental box is learned, directly buying novel circuit theory teaching equipment bring great number equipment purchase cost input had both been exempted, it can also be certainly
During electric circuit teaching Experiment of Principle case processed, give participate in homemade student provide deeper into practice, circuit principle teaching sets
Standby input cost is low, small in size to occupy little space, compact-sized, more intuitive, easy to maintain using operating, and improves training student
Analysis and measurement for experiment.
Preferably, the component information includes providing circuit principle teaching experiment cognition for student to judge that identification is every
Component title, component symbol, component parameter and the component pin symbolic information of a difference component.It is former to improve circuit
Reason teaching cognitive efficiency and deep effective stability.
Preferably, the wires design feature structure includes providing the cloth of circuit principle teaching experiment cognition for student
Wire bonding dish structure, wiring move towards Structure Planning, electrostatic screen wire structures, wiring maximum operating currenbt Structure Planning, via hole electricity
Gas plans wire structures and signal isolation wire structures；Pcb board uses lamina, doubling plate or Multilayer Structure, on pcb board
Wiring layer includes layer top layer wiring layer, bottom wiring layer and/or intermediate wiring layer layer, and single circuit pcb board has bottom wiring layer
With top layer silk-screen layer, top layer silk-screen layer includes letter symbol silk-screen layer and circuit theory line silk-screen layer；Odt circuit pcb board packet
Layer top layer wiring layer, bottom wiring layer, top layer silk-screen layer and bottom overlay are included, top layer silk-screen layer and bottom overlay include text
Character silk-screen layer and circuit theory line silk-screen layer realize top layer cloth by via hole between layer top layer wiring layer and bottom wiring layer
Electric wiring connection between line layer and bottom wiring layer；Multilayer circuit pcb board has except double-layer circuit board characteristic and also has
The intermediate wiring layer layer that several layers bright can not be shown in passes through via hole between layer top layer wiring layer, intermediate wiring layer layer and bottom wiring layer
Realize the electric wiring connection between each layer wiring layer.Student is grasped faster deeper into more effective quickly heightened awareness to obtain
Circuit principle teaching tests demand and actual design manipulative ability, and leaving school to enter society for student rapidly enters work position state
More effective teaching experiment effect is provided, is still a face without receiving task after the practical post that enters society
Ignorant or state of feeling at a loss.
Preferably, the circuit theory line silk-screen layer and letter symbol silk-screen layer use different silk-screen color knots
Structure, the letter symbol position of letter symbol silk-screen layer correspond to each component position nearby.Improve circuit theory line
The recognition efficiency of silk-screen layer and letter symbol silk-screen layer, with the circuit theory line and Chinese character being related in itself on pcb board
Number content information amount is very big, and using different silk-screen color structures, faster effective raisings teaching experiment identification judges
Efficiency and accuracy.
Preferably, the authentication module or test module includes RLC impedance operator test module, RLC series resonance
Test module, Kirchhoff's law authentication module, principle of stacking authentication module, Thevenin's theorem and Nortons theorem authentication module,
Improve power factor (PF) research authentication module and three-phase alternating voltage testing current module.Improve circuit principle teaching verifying or
Test teaching efficiency.
Preferably, the three phase mains, constant voltage source, constant-current supply, adjustable constant voltage power supply and adjustable constant-flow power supply
It installs to form integral type experiment box structure with experimental box, three phase mains is adopted as 5V three-phase alternating current output light current power supply, constant pressure electricity
Source, constant-current supply, adjustable constant voltage power supply and adjustable constant-flow power supply are all made of as light current power supply.Gather a variety of demand power supplys and experiment
Case one, improves the safe and reliable stability of circuit principle teaching, improves the circuit principle teaching experiment of experimental box entirety using just
Prompt flexible validity.
Preferably, the detection connector uses element inserting column, draws connecting holes position and/or detection hole bit architecture,
Element inserting column, draw connecting holes position and/or detection hole location be electrically connected with authentication module or test module.Improve circuit principle teaching
Detection connects flexibility easy to use.
Preferably, the spare component includes providing circuit principle teaching experiment cognition verifying or test for student
Resistance, capacitor and the adjustable potentiometer of parameter replacement.It improves circuit principle teaching detection or verifies using spare convenient flexible
Property；It more preferably obtains different verifying detection teaching and compares effect.
Preferably, the experimental box body entirety length, width and height are having a size of 50 ± 1CM*35 ± 1CM*16 ± 1CM.Experimental box
Overall structure is small in size to occupy little space, compact-sized, avoids occupying more school duty room place space.
Another goal of the invention of the invention is to provide a kind of circuit theory experimental box experimental method, it is characterised in that:
Including following experimental procedure
A is familiar with all kinds of power supplys, measuring instrumentss and the verifying that circuit theory experimental box described in one of claim 1~9 is configured
The layout of module and/or test module is familiar with step with measurement application method；
B selects the verifying or test experiments step of actually required progress according to circuit theory Experimental Teaching Courses purpose demand；
C according to claim 1~one of 9 described in RLC impedance operator involved in authentication module or test module test mould
Block, RLC series resonance test module, Kirchhoff's law authentication module, principle of stacking authentication module, Thevenin's theorem and Nuo Dun
Theorem proving module, raising power factor (PF) research authentication module and the selection of three-phase alternating voltage testing current module use correspondence
Experiment detection table carry out corresponding verifying or test operating procedure；
Verifying or test method of the d employed in step c include: to survey amperemeter inner resistance with shunting；Voltage is surveyed with partial pressure method
Table internal resistance；Kirchhoff's law correctness is verified with digital voltmeter measuring circuit power supply and ohmically voltage value；With opening
The characteristic curve of road voltage method and short circuit current method measurement active two-terminal network verifies Thevenin's theorem；Verify the capacitive reactance of resistance induction reactance
The amplitude-versus-frequency curve of relationship and its characteristic curve, measurement RLC series circuit between frequency；Star company is done to threephase load
It connects and is connected with triangle, when carrying out two kinds of connection states of verifying, the relationship between line phase voltage and phase current；With a watt meter method
With two watts of meter method for measuring three-phase circuit active power and reactive power；
E detects or verifies experimental data obtained according to step c, and record or drafting obtain corresponding data form or data
Characteristic Data Processing in Experiment step；
F will be recorded or drafting obtains corresponding data form or data characteristic curve and compares with gross data, and judgement is
The no comparison step for meeting requirement of experiment；
G summarizes the conclusion summary step for obtaining experiment conclusion by step e.
Circuit theory experiment effectiveness is improved, circuit principle teaching equipment input cost is reduced, more intuitive using operation,
It is easy to maintain.
The beneficial effects of the present invention are: according to the electricity in the more preferable suitable laboratory place space of circuit principle teaching demand self-control
Road theory teaching experimental box had both exempted directly buying novel circuit theory teaching equipment bring great number equipment purchase cost input,
Can also during making electric circuit teaching Experiment of Principle case by oneself, give participate in homemade student provide deeper into practice, circuit is former
It is low to manage teaching equipment input cost, it is small in size to occupy little space, it is compact-sized, more intuitive, easy to maintain using operating, it improves
Analysis and measurement of the training student for experiment.Deepen the understanding to Basis Theory of Circuitry and basic analyzing method, grasps circuit
Basic measurement means and measuring technique；It realizes that economy is effective by self-control circuit principle teaching experimental teaching equipment to do
Method.Experimental box panel front uses silk-screen printing circuit, and reverse side is printed circuit and pad and line, the installation of component front
Convenient for student's identification.Panel is combined type module circuit structure, and is furnished with digital alternating current-direct current voltage and current power meter on panel,
So that circuit building and electric parameter measurement be integrated, make student have more times for experiment analysis and measurement.It is comprehensive
Design-type experiment is independent component overlap joint, has cultivated Students ' Comprehensive designed capacity, has very high practical value, can satisfy
The various types Experiment of Electrical Circuits course teaching demand of each Specialty.
Detailed description of the invention:
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is the experimental box panel distributed architecture schematic diagram of circuit theory experimental box configuration of the present invention.
Fig. 2 is the experimental box panel circuit structural schematic diagram of circuit theory experimental box configuration of the present invention.
Fig. 3 is the three-phase power circuit plate distributed architecture schematic diagram of circuit theory experimental box configuration of the present invention.
Fig. 4 is the constant voltage source of circuit theory experimental box of the present invention configuration, constant-current supply, adjustable constant voltage power supply and adjustable
Constant-current power supply circuit plate distributed architecture schematic diagram.
Specific embodiment
Embodiment 1:
Fig. 1, Fig. 2, Fig. 3, in embodiment shown in Fig. 41, a kind of circuit theory experimental box, including experimental box body, experimental box body are matched
Experimental box panel 01, built-in power supply 32 and multiple experiment detection tables 10, experimental box panel and built-in power supply is set to be adopted
Circuit board front is at least provided with front wiring layer, front silk-screen layer and at the multiple experiment detection tables for being distributed shape that are arranged above and below
10, experimental box panel reverse side at least set back wiring layer and wiring welding layer, multiple experiment detection tables include digital voltmeter,
Digital ammeter, digital power table and digital power meter, each experiment detection table are electrically connected with experimental box panel, experimental box
Installation is connected with the circuit theory component that recognition capability is judged for improving student experimenting teaching cognition, front in panel front
Silk-screen layer is equipped with for the circuit theory line silk-screen layer of Experiment of Electrical Circuits principle connection figure and identifies each member used for imparting knowledge to students
The letter symbol silk-screen layer of device information, circuit theory line silk-screen layer show that constituting experimental box panel powers on for teaching experiment
Principle is electrically connected between each component of road principle component, front wiring layer shows analog module for teaching experiment
Practical electric wiring connection structure and wires design feature structure；Built-in power supply includes for experimental box panel and multiple realities
It tests detection table and three phase mains, constant voltage source, constant-current supply, adjustable constant voltage power supply and the adjustable constant-flow power supply of working power is provided；
Authentication module and/or test module needed for circuit principle teaching is provided, the authentication module are set in experimental box panel front
And/or test module is using constituting the component of the module independently bright installation distributed architecture in the experimental box panel front, institute
The detection connector and spare component being electrically connected with detecting instrument are set on the authentication module and/or test module stated.First device
Part information includes that component title, the member of each different components of circuit principle teaching experiment cognition judgement identification are provided for student
Reference numerals, component parameter and component pin symbolic information.Wires design feature structure includes that circuit original is provided for student
The wiring pads structure of reason teaching experiment cognition, wiring move towards Structure Planning, electrostatic screen wire structures, wiring maximum functional electricity
Stream Structure Planning, via hole electrically plan wire structures and signal isolation wire structures；Pcb board uses lamina, doubling plate or more
Veneer structure, the wiring layer on pcb board includes layer top layer wiring layer, bottom wiring layer and/or intermediate wiring layer layer, single circuit
Pcb board has bottom wiring layer and top layer silk-screen layer, and top layer silk-screen layer includes letter symbol silk-screen layer and circuit theory line silk
Print layer；Odt circuit pcb board includes layer top layer wiring layer, bottom wiring layer, top layer silk-screen layer and bottom overlay, top layer silk-screen layer
Include letter symbol silk-screen layer and circuit theory line silk-screen layer with bottom overlay, layer top layer wiring layer and bottom wiring layer it
Between pass through via hole and realize electric wiring connection between layer top layer wiring layer and bottom wiring layer；Multilayer circuit pcb board has bilayer
The intermediate wiring layer layer that bright can not also see with several layers except circuit board characteristics, layer top layer wiring layer, intermediate wiring layer layer and bottom
Realize that the electric wiring between each layer wiring layer connects by via hole between layer wiring layer.Circuit theory line silk-screen layer and text
Symbol silk-screen layer uses different silk-screen color structures, and the letter symbol position of letter symbol silk-screen layer corresponds to each first device nearby
Part position.Authentication module or test module include 21 test module of RLC impedance operator, the test mould of RLC series resonance 22
Block, 35 authentication module of principle of stacking authentication module, Thevenin's theorem and Nortons theorem, mentions Kirchhoff's law authentication module 31
High power factor research authentication module and three-phase alternating voltage testing current module.Three phase mains, constant voltage source, Constant Electric Current
Source, adjustable constant voltage power supply and adjustable constant-flow power supply and experimental box are installed to form integral type experiment box structure, collectively form experimental box
Built-in power supply 32, three phase mains are adopted as 5V three-phase alternating current output light current power supply, constant voltage source, constant-current supply, adjustable perseverance
Voltage source and adjustable constant-flow power supply are all made of as light current power supply.Built-in power supply 32 is mounted on the right side in experimental box panel 01
At 30 position of region, multiple experiment detection tables 10 are mounted at the leftward position in experimental box panel 01, authentication module or test
Module is mostly installed at 20 position of longitudinal intermediate region in experimental box panel 01.Integral layout improves circuit principle teaching
The convenient flexibility that verifying or detection operate with, layout is more reasonable effectively, also more reasonably realizes on experimental box panel
Left, center, right area distribution reasonability.Detection connector uses element inserting column, draws connecting holes position and/or detection hole bit architecture, member
Part inserting column, draw connecting holes position and/or detection hole location be electrically connected with authentication module or test module.Spare component 34 is including being
Student provides resistance, capacitor and the adjustable potentiometer of circuit principle teaching experiment cognition verifying or test parameter replacement.Experiment
Cabinet entirety length, width and height are having a size of 50 ± 1CM*35 ± 1CM*16 ± 1CM.Original University Electronic Laboratory is transformed, is eliminated
Existing electric circuit teaching experiment porch makes circuit principle teaching experimental teaching equipment by oneself.
Furthermore, it is contemplated that pcb board Butut used by experimental box panel, built-in power supply is related to the layer for having different
Number, including letter symbol silk-screen layer, circuit theory line silk-screen layer, single-layer or multi-layer wiring layer and different line widths are different
The composite factors such as bond pad shapes size, and it is further contemplated that the requirement that patent specification attached drawing is submitted is must to be unified for artwork master,
Thus the present patent application is when submitting Figure of description and Figure of abstract, to consider above-mentioned factor, specially on the drawing of submission
There may be and taken to delete in a manner of part wiring or circuit theory line silk-screen etc., with this come obtain it is relatively sharp can
The Figure of description display effect seen；Because if taking reconvert on the basis of the wiring and silk-screen effect that retain all original image paper
At black and white drawing, then each pcb board structural schematic diagram drawing provided by institute's the present patent application will be essentially the black of large format
Color lump, thus the present patent application submits pcb board drawing specially to be taken on the drawing of submission to delete part wiring or electricity
The modes such as road principle line silk-screen obtain relatively sharp visible Figure of description display effect with this, therefore cannot be with this
As to the incomplete limiting factor of analog module scheme of the present invention；The Figure of description of the present patent application only provides simultaneously
For partial simulation circuit module to make scheme referring to showing, other analog modules can refer to the present patent application technical solution think of
Road, production form required teaching experiment analog module pcb board, the circuit elements device of welding are inserted on each analog module
Part the circuit theory for having above-mentioned each function in the prior art can be used to be made, thus the present patent application technical solution relates to
And the circuit structures such as each analog module and power supply also do not provide circuit diagram herein, it can not be in this, as to this
The incomplete limiting factor of invention analog module scheme.
Embodiment 2:
A kind of circuit theory experimental box experimental method, including following experimental procedure
A be familiar with all kinds of power supplys, measuring instrumentss and the authentication module that circuit theory experimental box described in embodiment 1 is configured and/or
The layout of test module is familiar with step with measurement application method；
B selects the verifying or test experiments step of actually required progress according to circuit theory Experimental Teaching Courses purpose demand；
C RLC impedance operator test module according to involved in authentication module described in embodiment 1 or test module, RLC series connection
Resonance test module, Kirchhoff's law authentication module, principle of stacking authentication module, Thevenin's theorem and Nortons theorem verify mould
Block, raising power factor (PF) research authentication module and the selection of three-phase alternating voltage testing current module are detected using corresponding experiment
Table carries out corresponding verifying or test operating procedure；
Verifying or test method of the d employed in step c include: to survey amperemeter inner resistance with shunting；Voltage is surveyed with partial pressure method
Table internal resistance；Kirchhoff's law correctness is verified with digital voltmeter measuring circuit power supply and ohmically voltage value；With opening
The characteristic curve of road voltage method and short circuit current method measurement active two-terminal network verifies Thevenin's theorem；Verify the capacitive reactance of resistance induction reactance
The amplitude-versus-frequency curve of relationship and its characteristic curve, measurement RLC series circuit between frequency；Three-phase circuit is loaded
40 do star-like connection connects with triangle, when carrying out two kinds of connection states of verifying, the relationship between line phase voltage and phase current；With
One watt meter method and two watts of meter method for measuring three-phase circuit active power and reactive power；
E detects or verifies experimental data obtained according to step c, and record or drafting obtain corresponding data form or data
Characteristic Data Processing in Experiment step；
F will be recorded or drafting obtains corresponding data form or data characteristic curve and compares with gross data, and judgement is
The no comparison step for meeting requirement of experiment；
G summarizes the conclusion summary step for obtaining experiment conclusion by step e.Used test circuit diagram can be used existing in Step d
There is test circuit conventional in technology, it is just no longer multiple herein to draw out specific test circuit diagram again.
The above content and structure describes the basic principles and main features and advantages of the present invention of product of the present invention, current row
The technical staff of industry should be recognized that.It is merely illustrated the principles of the invention described in examples detailed above and specification, is not departing from this
Under the premise of spirit and range, various changes and improvements may be made to the invention, these changes and improvements belong to requirement and protect
Within the scope of the invention of shield.The scope of the present invention is defined by the appended claims and its equivalents.
Claims (10)
1. a kind of circuit theory experimental box, including experimental box body, it is characterised in that: experimental box body configures experimental box panel, built-in
Power supply and multiple experiments detect table, and circuit board front used by experimental box panel and built-in power supply is at least provided with just
Face wiring layer, front silk-screen layer and at the multiple experiment detection tables for being distributed shape that are arranged above and below, experimental box panel reverse side is at least set instead
Face wiring layer and wiring welding layer, multiple experiment detection tables include digital voltmeter, digital ammeter, digital power table
With digital power meter, each experiment detection table is electrically connected with experimental box panel, and erecting and welding is used in experimental box panel front
The circuit theory component that student experimenting teaching cognition judges recognition capability is improved, front silk-screen layer is equipped with former for Experiment of Electrical Circuits
The circuit theory line silk-screen layer of connection figure and the letter symbol silk-screen layer for identification of imparting knowledge to students each component information used are managed,
Circuit theory line silk-screen layer for teaching experiment show constitute experimental box face on-board circuitry principle component each component it
Between be electrically connected principle, front wiring layer for teaching experiment show analog module practical electric wiring connection structure and
Wires design feature structure；Built-in power supply includes providing the three of working power for experimental box panel and multiple experiment detection tables
Phase power supply, constant voltage source, constant-current supply, adjustable constant voltage power supply and adjustable constant-flow power supply；Offer electricity is provided in experimental box panel front
Authentication module needed for the theory teaching of road and/or test module, the authentication module and/or test module are using composition module
The independent bright installation distributed architecture in the experimental box panel front of component, the authentication module and/or test module
On set the detection connector and spare component being electrically connected with detecting instrument.
2. circuit theory experimental box described in accordance with the claim 1, it is characterised in that: the component information includes for student
Component title, the component symbol, component of each different components of circuit principle teaching experiment cognition judgement identification are provided
Parameter and component pin symbolic information.
3. circuit theory experimental box described in accordance with the claim 1, it is characterised in that: the wires design feature structure includes
The wiring pads structure of circuit principle teaching experiment cognition is provided for student, Structure Planning, electrostatic screen wire bond are moved towards in wiring
Structure, wiring maximum operating currenbt Structure Planning, via hole electrically plan wire structures and signal isolation wire structures；Pcb board uses
Lamina, doubling plate or Multilayer Structure, the wiring layer on pcb board includes layer top layer wiring layer, bottom wiring layer and/or middle layer
Wiring layer, single circuit pcb board have bottom wiring layer and top layer silk-screen layer, top layer silk-screen layer include letter symbol silk-screen layer and
Circuit theory line silk-screen layer；Odt circuit pcb board includes layer top layer wiring layer, bottom wiring layer, top layer silk-screen layer and bottom silk
Layer is printed, top layer silk-screen layer and bottom overlay include letter symbol silk-screen layer and circuit theory line silk-screen layer, top layer wiring
Realize that the electric wiring between layer top layer wiring layer and bottom wiring layer connects by via hole between layer and bottom wiring layer；Multilayer electricity
Road PCB plate with the intermediate wiring layer layer that bright can not also see with several layers except double-layer circuit board characteristic, layer top layer wiring layer, in
Realize that the electric wiring between each layer wiring layer connects by via hole between interbed wiring layer and bottom wiring layer.
4. circuit theory experimental box described in accordance with the claim 1, it is characterised in that: the circuit theory line silk-screen layer and
Letter symbol silk-screen layer uses different silk-screen color structures, and the letter symbol position of letter symbol silk-screen layer corresponds to each nearby
Component position.
5. circuit theory experimental box described in accordance with the claim 1, it is characterised in that: the authentication module or test module packet
Include RLC impedance operator test module, RLC series resonance test module, Kirchhoff's law authentication module, principle of stacking verifying mould
Block, Thevenin's theorem and Nortons theorem authentication module improve power factor (PF) research authentication module and three-phase alternating current current voltage
Test module.
6. circuit theory experimental box described in accordance with the claim 1, it is characterised in that: the three phase mains, constant voltage source, perseverance
Galvanic electricity source, adjustable constant voltage power supply and adjustable constant-flow power supply and experimental box are installed to form integral type experiment box structure, and three phase mains is adopted
Light current power supply is exported with for 5V three-phase alternating current, constant voltage source, constant-current supply, adjustable constant voltage power supply and adjustable constant-flow power supply are all made of
For light current power supply.
7. circuit theory experimental box described in accordance with the claim 1, it is characterised in that: the detection connector is inserted using element
Column draws connecting holes position and/or detection hole bit architecture, and element inserting column draws connecting holes position and/or detection hole location and authentication module
Or test module electrical connection.
8. circuit theory experimental box described in accordance with the claim 1, it is characterised in that: the spare component includes for student
Resistance, capacitor and the adjustable potentiometer of circuit principle teaching experiment cognition verifying or test parameter replacement are provided.
9. circuit theory experimental box described in accordance with the claim 1, it is characterised in that: the experimental box body entirety length, width and height ruler
Very little is 50 ± 1CM*35 ± 1CM*16 ± 1CM.
10. a kind of circuit theory experimental box experimental method, it is characterised in that: including following experimental procedure
A is familiar with all kinds of power supplys, measuring instrumentss and the verifying that circuit theory experimental box described in one of claim 1~9 is configured
The layout of module and/or test module is familiar with step with measurement application method；
B selects the verifying or test experiments step of actually required progress according to circuit theory Experimental Teaching Courses purpose demand；
C according to claim 1~one of 9 described in RLC impedance operator involved in authentication module or test module test mould
Block, RLC series resonance test module, Kirchhoff's law authentication module, principle of stacking authentication module, Thevenin's theorem and Nuo Dun
Theorem proving module, raising power factor (PF) research authentication module and the selection of three-phase alternating voltage testing current module use correspondence
Experiment detection table carry out corresponding verifying or test operating procedure；
Verifying or test method of the d employed in step c include: to survey amperemeter inner resistance with shunting；Voltage is surveyed with partial pressure method
Table internal resistance；Kirchhoff's law correctness is verified with digital voltmeter measuring circuit power supply and ohmically voltage value；With opening
The characteristic curve of road voltage method and short circuit current method measurement active two-terminal network verifies Thevenin's theorem；Verify the capacitive reactance of resistance induction reactance
The amplitude-versus-frequency curve of relationship and its characteristic curve, measurement RLC series circuit between frequency；Star company is done to threephase load
It connects and is connected with triangle, when carrying out two kinds of connection states of verifying, the relationship between line phase voltage and phase current；With a watt meter method
With two watts of meter method for measuring three-phase circuit active power and reactive power；
E detects or verifies experimental data obtained according to step c, and record or drafting obtain corresponding data form or data
Characteristic Data Processing in Experiment step；
F will be recorded or drafting obtains corresponding data form or data characteristic curve and compares with gross data, and judgement is
The no comparison step for meeting requirement of experiment；
G summarizes the conclusion summary step for obtaining experiment conclusion by step e.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811248043.6A CN109192018A (en) | 2018-10-25 | 2018-10-25 | Circuit theory experimental box and its experimental method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811248043.6A CN109192018A (en) | 2018-10-25 | 2018-10-25 | Circuit theory experimental box and its experimental method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109192018A true CN109192018A (en) | 2019-01-11 |
Family
ID=64943160
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811248043.6A Pending CN109192018A (en) | 2018-10-25 | 2018-10-25 | Circuit theory experimental box and its experimental method |
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