CN104464467A - Physical conductivity demonstrator - Google Patents
Physical conductivity demonstrator Download PDFInfo
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- CN104464467A CN104464467A CN201410825909.0A CN201410825909A CN104464467A CN 104464467 A CN104464467 A CN 104464467A CN 201410825909 A CN201410825909 A CN 201410825909A CN 104464467 A CN104464467 A CN 104464467A
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- parallel
- large resistance
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- power supply
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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
- G09B23/187—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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- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Algebra (AREA)
- Pure & Applied Mathematics (AREA)
- Mathematical Physics (AREA)
- Computational Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Theoretical Computer Science (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Instructional Devices (AREA)
Abstract
The invention discloses a physical conductivity demonstrator, and relates to the technical field of teaching aid manufacturing. The physical conductivity demonstrator comprises a power source. The two ends of the power source are connected with at least three low resistance test units in parallel, and each low resistance test unit is composed of a head tested object wire end connected with a test switch and a tail tested object wire end connected with a test indicator light. The two ends of the power source are connected with a high resistance test unit in parallel, the high resistance test unit comprises multiple parallel test circuits, the other ends of the test circuits are connected in parallel and then connected with one end of the power source, and the other ends of the test circuits connected in parallel are connected with the other end of the power source through a high resistance indicator light circuit and a music circuit which are connected in parallel. Compared with the prior art, the physical conductivity demonstrator can be suitable for demonstrating conductivity tests of objects of various resistance values.
Description
Technical field
The present invention relates to teaching aid manufacturing technology field, especially a kind of device for Experiments of Electricity.
Background technology
Usually use object conduction property demonstrator in the electricity teaching of primary grades physics, have a kind of physical conductive performance demonstration device, this demonstration device is connected and composed by wire and bezel.In use there is following deficiency in this physical conductive performance demonstration device with bezel: the electric current needed for bezel is larger, be only applicable to the test of the little object conductivity of resistance value, when the electric conductivity as objects such as unseasoned lumbers that test resistance is larger, bezel is not luminous maybe can only send out the low light level, can not play demonstrating effect.
Summary of the invention
Problem solved by the invention is to provide a kind of physical conductive performance demonstration device being applicable to the object conductivity test of various resistance value.
In order to solve the problem, the technical solution used in the present invention is: this physical conductive performance demonstration device includes power supply, at least be parallel with three groups of small resistor test cells at the two ends of described power supply, often organize described small resistor test cell and be made up of with the testee wire end being connected with test pilot lamp the testee wire head end being connected with Test Switchboard; One group of large resistance test unit is parallel with at the two ends of described power supply, described large resistance test unit comprises many groups measurement circuit in parallel, be connected with described power supply one end after the other end parallel connection of many groups of described measurement circuits, the other end of the described measurement circuit that many groups are in parallel is connected with the described power supply other end with music circuit by large resistance pilot lamp circuit in parallel.
In above-mentioned physical conductive performance demonstration device technical scheme, technical scheme can also be more specifically: described measurement circuit is formed by with the large resistance testee wire head end of switch and large resistance testee wire end.
Further: described large resistance pilot lamp circuit by large resistance pilot lamp and large resistance indicator light switch in series; Described music score route is formed with the Music Clip of amplifier and sound switch series connection.
Owing to have employed technique scheme, the present invention compared with prior art has following beneficial effect: 1, owing to being provided with small resistor test cell and large resistance test unit, during to the object conductivity that test resistance value is less, demonstrate out different objects electric conductivity by test pilot lamp and the brightness of large resistance pilot lamp different; During to the object conductivity that test resistance value is larger, although test pilot lamp and large resistance pilot lamp all do not work, can the sound demonstration sent from music circuit goes out it belong to conductor; 2, structure simple, be easy to make, demonstrating effect is directly perceived.
Accompanying drawing explanation
Fig. 1 is the wiring diagram of the embodiment of the present invention.
Embodiment
Below in conjunction with attached Example, the invention will be further described:
Physical conductive performance demonstration device as Fig. 1 includes power supply 6, the present embodiment has three groups of small resistor test cells at the two ends of power supply 6 by conductor in parallel, often organizes small resistor test cell and is made up of with the testee wire end 7-2 being connected with test pilot lamp 5 the testee wire head end 7-2 being connected with Test Switchboard 7-1, one group of large resistance test unit is also parallel with by wire at the two ends of power supply 6, the large resistance test unit of the present embodiment comprises the measurement circuit of six groups of parallel connections, often organize measurement circuit to form by with the large resistance testee wire head end 9-1 of switch 9 and large resistance testee wire end 9-1, one end and the positive level end of one end of the measurement circuit of six groups of parallel connections and large resistance testee wire head end 9-1 and power supply 6 are connected, the other end of many groups measurement circuit and large resistance testee wire end 9-1 parallel connection are connected by the other end of large resistance pilot lamp circuit in parallel and music circuit and power supply 6 and negative pole end afterwards, large resistance pilot lamp circuit by large resistance pilot lamp 4 and large resistance indicator light switch 3 in series, music score route with the Music Clip 1 of amplifier and sound switch 2 in series.
During experiment, multiple testee 7 is contained in successively between testee wire head end 7-2 and testee wire end 7-2 and is contained in successively after between large resistance testee wire head end 9-1 and large resistance testee wire end 9-1 and can start to test.
Claims (3)
1. a physical conductive performance demonstration device, include power supply (6), it is characterized in that: be at least parallel with three groups of small resistor test cells at the two ends of described power supply (6), often organize described small resistor test cell by be connected with Test Switchboard (7-1) testee wire head end (7-2) and be connected with test pilot lamp (5) testee wire end (7-2) form; One group of large resistance test unit is parallel with at the two ends of described power supply (6), described large resistance test unit comprises many groups measurement circuit in parallel, one end of the described measurement circuit of many groups parallel connection is connected with described power supply (6) one end, and the other end parallel connection of the described measurement circuit of many groups is connected with described power supply (6) other end with music circuit by large resistance pilot lamp circuit in parallel afterwards.
2. physical conductive performance demonstration device according to claim 1, is characterized in that: described measurement circuit is formed by with large resistance testee wire head end (9-1) of switch (9) and large resistance testee wire end (9-1).
3. physical conductive performance demonstration device according to claim 1 and 2, is characterized in that: described large resistance pilot lamp circuit by large resistance pilot lamp (4) and large resistance indicator light switch (3) in series; Described music score route with the Music Clip (1) of amplifier and sound switch (2) in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410825909.0A CN104464467A (en) | 2014-12-26 | 2014-12-26 | Physical conductivity demonstrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410825909.0A CN104464467A (en) | 2014-12-26 | 2014-12-26 | Physical conductivity demonstrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104464467A true CN104464467A (en) | 2015-03-25 |
Family
ID=52910439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410825909.0A Pending CN104464467A (en) | 2014-12-26 | 2014-12-26 | Physical conductivity demonstrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104464467A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105334414A (en) * | 2015-10-31 | 2016-02-17 | 上海与德通讯技术有限公司 | Conductive part height test device and test method |
| CN106683544A (en) * | 2015-11-06 | 2017-05-17 | 重庆尊来科技有限责任公司 | Discrete conductivity macroscopic display teaching demonstration instrument |
| CN106816068A (en) * | 2015-11-29 | 2017-06-09 | 重庆尊来科技有限责任公司 | A kind of capacitive reactance tester of non-gate |
| CN108230815A (en) * | 2018-04-08 | 2018-06-29 | 无锡职业技术学院 | Weak electric signal transmits simulation and training device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2837966Y (en) * | 2005-10-10 | 2006-11-15 | 陈晨 | Object conduction property demonstrator |
| CN201156335Y (en) * | 2008-01-18 | 2008-11-26 | 黎国胜 | Teaching demonstration apparatus for resistance measurement by volt-ampere method |
| CN201417545Y (en) * | 2009-02-27 | 2010-03-03 | 王健浩 | Small bulb electrical experimental teaching demonstration instrument |
| CN103456215A (en) * | 2013-09-04 | 2013-12-18 | 余姚市科仪光仪有限公司 | Electricity demonstration box |
-
2014
- 2014-12-26 CN CN201410825909.0A patent/CN104464467A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2837966Y (en) * | 2005-10-10 | 2006-11-15 | 陈晨 | Object conduction property demonstrator |
| CN201156335Y (en) * | 2008-01-18 | 2008-11-26 | 黎国胜 | Teaching demonstration apparatus for resistance measurement by volt-ampere method |
| CN201417545Y (en) * | 2009-02-27 | 2010-03-03 | 王健浩 | Small bulb electrical experimental teaching demonstration instrument |
| CN103456215A (en) * | 2013-09-04 | 2013-12-18 | 余姚市科仪光仪有限公司 | Electricity demonstration box |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105334414A (en) * | 2015-10-31 | 2016-02-17 | 上海与德通讯技术有限公司 | Conductive part height test device and test method |
| CN106683544A (en) * | 2015-11-06 | 2017-05-17 | 重庆尊来科技有限责任公司 | Discrete conductivity macroscopic display teaching demonstration instrument |
| CN106816068A (en) * | 2015-11-29 | 2017-06-09 | 重庆尊来科技有限责任公司 | A kind of capacitive reactance tester of non-gate |
| CN108230815A (en) * | 2018-04-08 | 2018-06-29 | 无锡职业技术学院 | Weak electric signal transmits simulation and training device |
| CN108230815B (en) * | 2018-04-08 | 2024-06-25 | 无锡职业技术学院 | Weak current signal transmission simulation training device |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150325 |
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| RJ01 | Rejection of invention patent application after publication |