CN203165309U - Experimental device for measuring capacitance and air dielectric constant - Google Patents
Experimental device for measuring capacitance and air dielectric constant Download PDFInfo
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- CN203165309U CN203165309U CN 201320127505 CN201320127505U CN203165309U CN 203165309 U CN203165309 U CN 203165309U CN 201320127505 CN201320127505 CN 201320127505 CN 201320127505 U CN201320127505 U CN 201320127505U CN 203165309 U CN203165309 U CN 203165309U
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- aluminum substrate
- aluminum pole
- mobile
- pole plate
- air dielectric
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Abstract
The utility model relates to an experimental device for physics teaching, and aims at providing the experimental device for measuring capacitance and an air dielectric constant. The device comprises two aluminum pole plates fixed on a base plate, wherein the two aluminum pole plates are the same in the area and are arranged in parallel; each aluminum pole plate is equipped with an aluminum pole plate binding post which is connected with an external ac bridge measuring unit; and the aluminum pole plates include a static aluminum pole plate and a mobile aluminum pole plate, the static aluminum pole plate is fixed with the base plate, and the mobile aluminum pole plate can move along the axial direction vertical to a plane to change the distance between the mobile aluminum pole plate and the static aluminum pole plate. According to the utility model, the distance between the mobile aluminum pole plate and the static aluminum pole plate is adjusted, and measurement and conversion via formulas are carried out, so that the experimental device for measuring capacitance and the air dielectric constant has the advantages including simple structure, clear experimental principles and convenient operation, and can further deepen students' perceptual knowledge.
Description
Technical field
The utility model belongs to the physics teaching experiment device, and more particularly, it belongs to the experimental provision that utilizes alternating current bridge to measure electric capacity and specific inductive capacity in universities and colleges' Physical Experiment.
Background technology
Alternating current bridge is a kind of comparison expression instrument, in electronic measurement technique, occupy critical role, it is mainly used in measuring AC equivalent resistance and time constant, electric capacity and dielectric loss, the precision measurement of electric parameter such as winding inductance quantity and coil q and mutual inductance, carry out precision measurement after also can being transformed to corresponding electrical parameter to non electrical quantity, and the fixed condenser of the testing capacitor element that when utilizing alternating current bridge to measure the electric capacity experiment, provides the at present sealing that all to be market buy, therefore, the student not only not principle of work and the structure thereof of electrolysis condenser, more do not understand the reason of condenser capacity size variation.
The utility model content
The utility model has overcome the deficiencies in the prior art, provides a kind of principle clear, easy to operate and make experiment device for teaching simple, with low cost.
Technical matters of the present utility model is achieved by the following technical programs:
A kind of measurement electric capacity and air dielectric specific inductive capacity experimental provision, comprise that two areas being fixed on the base plate equate, be arranged in parallel aluminum substrate, aluminum substrate is provided with the aluminum substrate connection terminal and links to each other with the alternating current bridge measuring unit of outside, described aluminum substrate divides static aluminum substrate and mobile aluminum substrate, static aluminum substrate and base plate fix, mobile aluminum substrate can be along move axially vertical with the plane, thereby change the distance with static aluminum substrate.
As further improvement of the utility model, described mobile aluminum substrate is installed on the guide rail sliding shoe, is moved along accurate line slideway by the control of micrometer screw chi.
As further improvement of the utility model, described guide rail sliding shoe is provided with the orienting lug that can cooperate with guide pole; Be with the spring that resets and hold out against usefulness on the described guide pole.
As further improvement of the utility model, there is steel ball to contact with the measurement screw rod of described micrometer screw chi on the described orienting lug.
As further improvement of the utility model, described measurement screw rod is fixed with holding screw after passing circular hole on the micrometer screw chi fixed head.
The utility model is by regulating the distance between static aluminum substrate and the mobile aluminum substrate, measures and experimentizes by the formula conversion, compared with prior art, has following beneficial effect:
1, simple in structure, be easy to make, cost of investment is low;
2, experimental principle is clear, and is easy to operate;
3, deepen student's perceptual knowledge.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the vertical view of Fig. 1.
Among the figure: 1 guide pole fixed head, 2 static aluminum substrate fixed blocks, 3 static aluminum substrates, 4 move aluminum substrate, 5 and move aluminum substrate fixed block, 6 steel balls, 7 micrometer screw chi fixed heads, 8 micrometer screw chis, 9 base plates, 10 orienting lugs, 11 guide rail sliding shoes, 12 accurate line slideways, 13 springs, 14 guide poles, 15 aluminum substrate connection terminals, 16 holding screws, 17 measurement screw rods.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
As depicted in figs. 1 and 2, the utility model comprises base plate 9, two aluminum substrates 3,4, guide pole fixed head 1, static aluminum substrate fixed block 2, mobile aluminum substrate fixed block 5, guide pole 14, spring 13, orienting lug 10, accurate line slideway 12, guide rail sliding shoe 11, micrometer screw chi 8, micrometer screw chi fixed head 7 and aluminum substrate connection terminal 15; Wherein base plate 9 is screwed guide pole fixed block 1, is inserted in accurate line slideway 12 and the micrometer screw chi fixed head 7 of guide rail sliding shoe 11.
Two aluminum substrates are divided into static aluminum substrate 3 and mobile aluminum substrate 4, and area equates, is separately fixed on static aluminum substrate fixed block 2 and the mobile aluminum substrate fixed block 5, and fixing back two aluminum substrates are parallel; Static aluminum substrate fixed block 2 is screwed in guide pole fixed head 1, more mobile aluminum substrate fixed block 5 is fixed on above the orienting lug 10 behind the fixing mobile aluminum substrate 4 in mobile aluminum substrate fixed block 5 back sides; Orienting lug 10 links to each other with guide rail sliding shoe 11, and guide rail sliding shoe 11 can move along accurate line slideway 12; Porose can the cooperation with guide pole 14 on the orienting lug 10; Guide pole 14 overcoats one spring 13 holds out against and the usefulness that resets; During installation, of guide pole 14 is fixed on the guide pole fixed block 1 and is inserted in spring 13, and the Kong Zhongzai that orienting lug 10 is inserted in the other end is fixed on orienting lug 10 on the guide rail sliding shoe 11; Mobile aluminum substrate fixed block 5(or orienting lug 10) front center is equipped with steel ball 6, steel ball 6 since its end face of effect of spring 13 contact with the end face of the measurement screw rod 17 of micrometer screw chi 8 all the time; After an end of measuring screw rod 17 passes circular hole on the micrometer screw chi fixed head 7, fixing with holding screw 16.
Experimentation of the present utility model is as follows:
Rotate micrometer screw chi 8, measure screw rod 17 and promote steel ball 6 and guide rail sliding shoe 11, orienting lug 10, the subassembly of mobile aluminum substrate fixed block 5 and mobile aluminum substrate 4 is done to advance or is retreated the distance of axially-movable between static aluminum substrate 3 and mobile aluminum substrate 4 at accurate line slideway 12 and reaches requirement is set, with lead static aluminum substrate 3 is connected with the alternating current bridge measuring unit with aluminum substrate connection terminal 15 on the mobile aluminum substrate 4, measure the electric capacity between these distance two aluminum substrates, change to measure again after the distance between static aluminum substrate 3 and the mobile aluminum substrate 4 and convert by formula by above-mentioned steps then and obtain the specific inductive capacity of air dielectric.
At last, it is also noted that what more than enumerate only is a specific embodiment of the present utility model.Obviously, the utility model can also have many distortion, and all distortion that those of ordinary skill in the art can directly derive or associate from the disclosed content of the utility model all should be thought protection domain of the present utility model.
Claims (5)
1. measure electric capacity and air dielectric specific inductive capacity experimental provision for one kind, comprise that two areas being fixed on the base plate (9) equate, be arranged in parallel aluminum substrate, aluminum substrate is provided with aluminum substrate connection terminal (15) and links to each other with the alternating current bridge measuring unit of outside, it is characterized in that, described aluminum substrate divides static aluminum substrate (3) and mobile aluminum substrate (4), static aluminum substrate (3) fixes with base plate (9), mobile aluminum substrate (4) can be along move axially vertical with the plane, thereby change the distance with static aluminum substrate (3).
2. measurement electric capacity according to claim 1 and air dielectric specific inductive capacity experimental provision, it is characterized in that, described mobile aluminum substrate (4) is installed on the guide rail sliding shoe (11), and is mobile along accurate line slideway (12) by micrometer screw chi (8) control.
3. measurement electric capacity according to claim 2 and air dielectric specific inductive capacity experimental provision is characterized in that, described guide rail sliding shoe (11) is provided with the orienting lug (10) that can cooperate with guide pole (14); Be with the spring (13) that resets and hold out against usefulness on the described guide pole (14).
4. measurement electric capacity according to claim 3 and air dielectric specific inductive capacity experimental provision is characterized in that, have steel ball (6) to contact with the measurement screw rod (17) of described micrometer screw chi (8) on the described orienting lug (10).
5. measurement electric capacity according to claim 4 and air dielectric specific inductive capacity experimental provision is characterized in that, described measurement screw rod (17) passes behind the circular hole on the micrometer screw chi fixed head (7) fixing with holding screw (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320127505 CN203165309U (en) | 2013-03-20 | 2013-03-20 | Experimental device for measuring capacitance and air dielectric constant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320127505 CN203165309U (en) | 2013-03-20 | 2013-03-20 | Experimental device for measuring capacitance and air dielectric constant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203165309U true CN203165309U (en) | 2013-08-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320127505 Expired - Fee Related CN203165309U (en) | 2013-03-20 | 2013-03-20 | Experimental device for measuring capacitance and air dielectric constant |
Country Status (1)
| Country | Link |
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| CN (1) | CN203165309U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104485226A (en) * | 2014-12-18 | 2015-04-01 | 吴江变压器有限公司 | Polar plate distance measurable capacitor |
| CN104502678A (en) * | 2014-12-18 | 2015-04-08 | 吴江变压器有限公司 | Method for measuring voltage ratio of power transformer |
| CN105158578A (en) * | 2015-08-25 | 2015-12-16 | 北京工业大学 | Bridge method-based device for measuring dielectric constant of organism |
| CN106601097A (en) * | 2016-12-30 | 2017-04-26 | 齐齐哈尔大学 | Non-contact contrast type capacitor charging and discharging method |
| CN107153136A (en) * | 2017-05-11 | 2017-09-12 | 王若茗 | A kind of stacked capacitor group experimental rig |
| CN107942143A (en) * | 2017-12-15 | 2018-04-20 | 华中科技大学 | A kind of experimental provision for measuring solid dielectric relative dielectric constant |
| CN110568267A (en) * | 2019-07-22 | 2019-12-13 | 中国航空工业集团公司济南特种结构研究所 | Quick assembling and disassembling device for waveguide test of dielectric property of material |
| CN112540234A (en) * | 2020-11-25 | 2021-03-23 | 华中科技大学 | Dielectric constant measuring jig and measuring method based on parallel plate capacitance method |
-
2013
- 2013-03-20 CN CN 201320127505 patent/CN203165309U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104502678A (en) * | 2014-12-18 | 2015-04-08 | 吴江变压器有限公司 | Method for measuring voltage ratio of power transformer |
| CN104502678B (en) * | 2014-12-18 | 2017-08-25 | 吴江变压器有限公司 | The method for measuring power transformer voltage ratio |
| CN104485226A (en) * | 2014-12-18 | 2015-04-01 | 吴江变压器有限公司 | Polar plate distance measurable capacitor |
| CN105158578A (en) * | 2015-08-25 | 2015-12-16 | 北京工业大学 | Bridge method-based device for measuring dielectric constant of organism |
| CN106601097A (en) * | 2016-12-30 | 2017-04-26 | 齐齐哈尔大学 | Non-contact contrast type capacitor charging and discharging method |
| CN106601097B (en) * | 2016-12-30 | 2019-07-09 | 齐齐哈尔大学 | The method of the capacitor charge and discharge of non-contact comparison type |
| CN107153136B (en) * | 2017-05-11 | 2023-10-31 | 王若茗 | Stacked capacitor bank test device |
| CN107153136A (en) * | 2017-05-11 | 2017-09-12 | 王若茗 | A kind of stacked capacitor group experimental rig |
| CN107942143A (en) * | 2017-12-15 | 2018-04-20 | 华中科技大学 | A kind of experimental provision for measuring solid dielectric relative dielectric constant |
| CN107942143B (en) * | 2017-12-15 | 2024-02-06 | 华中科技大学 | Experimental device for measure solid medium relative dielectric constant |
| CN110568267B (en) * | 2019-07-22 | 2021-12-03 | 中国航空工业集团公司济南特种结构研究所 | Quick assembling and disassembling device for waveguide test of dielectric property of material |
| CN110568267A (en) * | 2019-07-22 | 2019-12-13 | 中国航空工业集团公司济南特种结构研究所 | Quick assembling and disassembling device for waveguide test of dielectric property of material |
| CN112540234A (en) * | 2020-11-25 | 2021-03-23 | 华中科技大学 | Dielectric constant measuring jig and measuring method based on parallel plate capacitance method |
| CN112540234B (en) * | 2020-11-25 | 2021-10-08 | 华中科技大学 | Dielectric constant measuring jig and measuring method based on parallel plate capacitance method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130828 Termination date: 20160320 |