CN205080166U - Voltmeter - Google Patents
Voltmeter Download PDFInfo
- Publication number
- CN205080166U CN205080166U CN201520724222.8U CN201520724222U CN205080166U CN 205080166 U CN205080166 U CN 205080166U CN 201520724222 U CN201520724222 U CN 201520724222U CN 205080166 U CN205080166 U CN 205080166U
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- iron core
- coil
- pointer
- voltage table
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 38
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 210000000003 hoof Anatomy 0.000 claims abstract description 4
- 238000005259 measurement Methods 0.000 abstract 1
- 230000005291 magnetic effect Effects 0.000 description 12
- 230000006641 stabilisation Effects 0.000 description 6
- 238000011105 stabilization Methods 0.000 description 6
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000006698 induction Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Magnetic Treatment Devices (AREA)
Abstract
The utility model discloses a voltmeter, including permanent magnet, iron core, pivot and calibrated scale, the iron core is established in permanent magnet, the pivot is established on the iron core, the pivot is rotated with the iron core and is connected, the calibrated scale is established on permanent magnet, calibrated scale and permanent magnet fixed connection, be provided with pointer and coil spring in the pivot, the pointer passes through coil spring and is connected with the pivot, the pointer corresponds the setting with the calibrated scale, permanent magnet is shape of a hoof setting, permanent magnet is last to be provided with the zero adjuster screw and to adjust the pole, the zero adjuster screw is connected with the pivot transmission through adjusting the pole, be provided with the coil on the iron core, the coil is perpendicular setting, the utility model discloses simple structure, convenient operation can the measurement accuracy height.
Description
Technical field
The utility model relates to a kind of voltage measuring apparatus technical field, particularly relates to a kind of voltage table.
Background technology
Voltage table is a kind of instrument of measuring voltage, common voltage table---voltage meter symbol: V, a permanent magnet is had inside sensitive galvanometer, a series connection coil be made up of wire between galvanometric two binding posts, coil is placed in the magnetic field of permanent magnet, and is connected with the pointer of table by gearing.Major part voltage table is all divided into two ranges.Voltage table has three binding posts, a negative terminal, two positive terminals, and the positive pole of voltage table is connected with the positive pole of circuit, and negative pole is connected with the negative pole of circuit.Voltage table must be in parallel with tested electrical appliance.Voltage table is a sizable resistor, and desirable thinks open circuit.The voltage table range that Junior laboratory is commonly used is 0-3V and 0-15V.Traditional needle dc voltmeter comprises a sensitive galvanometer, a permanent magnet is had inside sensitive galvanometer, a series connection coil be made up of wire between galvanometric two binding posts, coil is placed in the magnetic field of permanent magnet, and is connected with the pointer of table by gearing.Major part voltage table is all divided into two ranges.Voltage table has three binding posts, a negative terminal, two positive terminals, and the positive pole of voltage table is connected with the positive pole of circuit, and negative pole is connected with the negative pole of circuit.
Traditional needle dc voltmeter and reometer are all be exactly the magnetic effect of electric current according to a principle.Electric current is larger, the magnetic force produced is larger, what show is exactly that the amplitude of oscillation of pointer on voltage table is larger, a magnet and a lead loop is had in voltage table, after electric current, coil can be made to produce magnetic field, can deflect under the effect of magnet after coil electricity, the gauge outfit part of Here it is reometer, voltage table.Because voltage table is in parallel with measured resistance, if used so directly work as voltage table with sensitive galvanometer, electric current in table is excessive, can burn out ammeter, at this moment needs the resistance that series connection one is very large in the internal circuit of voltage table, after such transformation, when voltage table again parallel connection in circuit time, due to the effect of resistance, be added in ammeter two ends voltage the overwhelming majority all by this series connection resistance shared, so in fact very little by the electric current of ammeter, so just can normally employ.For measuring the Electromechanical indicating meters of DC voltage, alternating voltage.Be divided into D.C. voltmeter and A.C. voltmeter.Current existing voltage table structure is comparatively complicated, measures and uses inconvenience, and precision is not high simultaneously.
Summary of the invention
The technical problems to be solved in the utility model is that a kind of structure is simple, easy to operate, can the high voltage table of measuring accuracy.
For solving the problem, the utility model adopts following technical scheme:
A kind of voltage table, comprise permanent magnet, iron core, rotating shaft and index dial, described iron core is located in permanent magnet, described rotating shaft is located on iron core, described rotating shaft and iron core are rotationally connected, described index dial is established on the permanent magnet, described index dial is fixedly connected with permanent magnet, iron core can make lines of magnetic induction radially distribute equably, described rotating shaft is provided with pointer and volute spring, volute spring can make the stressed rear stability of rotation of pointer, described pointer is connected with rotating shaft by volute spring, described pointer is corresponding with index dial to be arranged, described permanent magnet is that the shape of a hoof is arranged, described permanent magnet is provided with zero point adjustment screw and adjuster bar, zero point adjustment screw is convenient regulates pointer scale to be zero, described zero point adjustment screw is connected with rotating shaft transmission by adjuster bar, described iron core is provided with coil, coil can drive iron core to rotate by electromagnetic force, described coil is vertical setting.
As preferably, described iron core arranged outside has pole to slap, and can keep iron core slow-roll stabilization.
As preferably, the described pole palm is fixedly connected with permanent magnet, keeps pole to slap Stability Analysis of Structures.
As preferably, the described pole palm is suitable with iron core, makes iron core slow-roll stabilization.
As preferably, described zero point adjustment screw is threaded with permanent magnet, keeps zero point adjustment screw modification stability.
It is simple that this technical scheme has structure, easy to operate, can the high feature of measuring accuracy.
The beneficial effects of the utility model are: the iron core of setting can make lines of magnetic induction radially distribute equably, volute spring can make the stressed rear stability of rotation of pointer, zero point adjustment screw is convenient regulates pointer scale to be zero, coil can drive iron core to rotate by electromagnetic force, the pole palm can keep iron core slow-roll stabilization, zero point adjustment screw is threaded with permanent magnet, keeps zero point adjustment screw modification stability.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural drawing of a kind of voltage table of the present utility model.
Embodiment
Consult shown in Fig. 1, a kind of voltage table, comprise permanent magnet 1, iron core 2, rotating shaft 3 and index dial 4, described iron core 2 is located in permanent magnet 1, described rotating shaft 3 is located on iron core 2, described rotating shaft 3 is rotationally connected with iron core 2, described index dial 4 is located on permanent magnet 1, described index dial 4 is fixedly connected with permanent magnet 1, in use, when there being electric current to be measured by coil 9, magnetic field just produces a moment to coil 9, make it deflect, size and the strength of current to be measured of this magnetic torque are directly proportional, when coil 9 deflects, there is deformation in torsional spring 6, produce reciprocal countermoment, coil 9 is stoped to continue deflection, when coil 9 balances, its position residing for pointer 5, reflect the size of electric current to be measured, described rotating shaft 3 is provided with pointer 5 and volute spring 6, described pointer 5 is connected with rotating shaft 3 by volute spring 6, described pointer 5 is corresponding with index dial 4 to be arranged, described permanent magnet 1 is arranged in the shape of a hoof, described permanent magnet 1 is provided with zero point adjustment screw 7 and adjuster bar 8, described zero point adjustment screw 7 is in transmission connection by adjuster bar 8 and rotating shaft 3, described iron core 2 is provided with coil 9, described coil 9 is vertical setting.
Described iron core 2 arranged outside has pole to slap 10, can keep iron core slow-roll stabilization.
The described pole palm 10 is fixedly connected with permanent magnet 1, keeps pole palm Stability Analysis of Structures.
The described pole palm 10 is suitable with iron core 2, makes iron core slow-roll stabilization.
In use, when there being electric current to be measured by coil 9, magnetic field just produces a moment to coil 9, makes it deflect, size and the strength of current to be measured of this magnetic torque are directly proportional, when coil 9 deflects, there is deformation in torsional spring 6, produces reciprocal countermoment, coil 9 is stoped to continue deflection, when coil 9 balances, its position residing for pointer 5, reflects the size of electric current to be measured.
Described zero point adjustment screw 7 is threaded with permanent magnet 1, keeps zero point adjustment screw modification stability.
The beneficial effects of the utility model are: the iron core of setting can make lines of magnetic induction radially distribute equably, volute spring can make the stressed rear stability of rotation of pointer, zero point adjustment screw is convenient regulates pointer scale to be zero, coil can drive iron core to rotate by electromagnetic force, the pole palm can keep iron core slow-roll stabilization, zero point adjustment screw is threaded with permanent magnet, keeps zero point adjustment screw modification stability.
The above; be only embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; any change of expecting without creative work or replacement; all should be encompassed within protection domain of the present utility model; therefore, the protection domain that protection domain of the present utility model should limit with claims is as the criterion.
Claims (5)
1. a voltage table, it is characterized in that: comprise permanent magnet, iron core, rotating shaft and index dial, described iron core is located in permanent magnet, described rotating shaft is located on iron core, described rotating shaft and iron core are rotationally connected, described index dial is established on the permanent magnet, described index dial is fixedly connected with permanent magnet, described rotating shaft is provided with pointer and volute spring, described pointer is connected with rotating shaft by volute spring, described pointer is corresponding with index dial to be arranged, described permanent magnet is that the shape of a hoof is arranged, described permanent magnet is provided with zero point adjustment screw and adjuster bar, described zero point adjustment screw is connected with rotating shaft transmission by adjuster bar, described iron core is provided with coil, described coil is vertical setting.
2. voltage table according to claim 1, is characterized in that: described iron core arranged outside has pole to slap.
3. voltage table according to claim 2, is characterized in that: the described pole palm is fixedly connected with permanent magnet.
4. voltage table according to claim 3, is characterized in that: the described pole palm is suitable with iron core.
5. voltage table according to claim 4, is characterized in that: described zero point adjustment screw is threaded with permanent magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520724222.8U CN205080166U (en) | 2015-09-18 | 2015-09-18 | Voltmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520724222.8U CN205080166U (en) | 2015-09-18 | 2015-09-18 | Voltmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205080166U true CN205080166U (en) | 2016-03-09 |
Family
ID=55432565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520724222.8U Active CN205080166U (en) | 2015-09-18 | 2015-09-18 | Voltmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205080166U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106443118A (en) * | 2016-08-24 | 2017-02-22 | 太仓宏璟瑞远物业管理有限公司 | Pointer type multimeter |
| CN108364812A (en) * | 2018-02-11 | 2018-08-03 | 上海银都节能服务有限公司 | A kind of electric power safety monitoring device |
| CN110196394A (en) * | 2019-06-23 | 2019-09-03 | 郑州工业应用技术学院 | Wafer cassette electronic tag electric quantity warning device |
| CN115575695A (en) * | 2022-12-12 | 2023-01-06 | 国网山东省电力公司枣庄供电公司 | Convenient-to-use equipment for measuring electrical variable |
-
2015
- 2015-09-18 CN CN201520724222.8U patent/CN205080166U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106443118A (en) * | 2016-08-24 | 2017-02-22 | 太仓宏璟瑞远物业管理有限公司 | Pointer type multimeter |
| CN108364812A (en) * | 2018-02-11 | 2018-08-03 | 上海银都节能服务有限公司 | A kind of electric power safety monitoring device |
| CN108364812B (en) * | 2018-02-11 | 2019-09-27 | 上海银都节能服务有限公司 | A kind of electric power safety monitoring device |
| CN110196394A (en) * | 2019-06-23 | 2019-09-03 | 郑州工业应用技术学院 | Wafer cassette electronic tag electric quantity warning device |
| CN110196394B (en) * | 2019-06-23 | 2021-04-20 | 郑州工业应用技术学院 | Electric quantity alarm device for wafer box electronic tag |
| CN115575695A (en) * | 2022-12-12 | 2023-01-06 | 国网山东省电力公司枣庄供电公司 | Convenient-to-use equipment for measuring electrical variable |
| CN115575695B (en) * | 2022-12-12 | 2023-03-14 | 国网山东省电力公司枣庄供电公司 | Convenient-to-use equipment for measuring electrical variable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205080166U (en) | Voltmeter | |
| CN109283380A (en) | The measurement method of line current, device, equipment and storage medium in electric system | |
| CN203259595U (en) | Full-automatic digital megohmmeter | |
| CN203397581U (en) | An Ampere force experiment instrument | |
| CN204028200U (en) | A kind of indicator type current meter | |
| CN203616374U (en) | DC potentiometer experimental device adopting constant current source | |
| CN202948043U (en) | Open type Wheatstone bridge experimental instrument | |
| CN206863187U (en) | Cell emf experimental provision is surveyed based on ratio times multiplier | |
| CN207637376U (en) | Ampere force scale | |
| CN203464986U (en) | Electromagnetic-force-balanced microbalance | |
| CN201562009U (en) | Universal panel type digital alternating current voltmeter | |
| CN202522689U (en) | Magnetic induction intensity measuring device based on Hall effect | |
| CN204740282U (en) | Multimeter | |
| CN203502489U (en) | Improved circuit capable of expanding measurement scope of voltmeter | |
| CN103293362A (en) | Direct-current ammeter and multimeter and measuring method by using ammeter or multimeter | |
| CN207703922U (en) | A kind of multirange ammeter | |
| CN206975202U (en) | A kind of Hall element sensitivity measuring apparatus | |
| CN209417996U (en) | A kind of Physical Experiment drum-type electro tentiometer teaching aid | |
| CN202650364U (en) | Resistance wire type potential difference meter device used for physical experimental teaching | |
| CN206906438U (en) | A kind of low cost integration hourglass kilowatt-hour meter | |
| CN206489256U (en) | Hall effect digital switch test device | |
| CN205484007U (en) | Verdet constant measuring device of magneto optic material | |
| CN204346475U (en) | A kind of magnetoelectricity series measuring mechanism | |
| CN203287422U (en) | Direct current ammeter and universal meter | |
| CN204028198U (en) | The accurate reometer of a kind of measurement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160411 Address after: Haizhuqu District Guangzhou City, Guangdong province Chigang West 510399 No. 266 by 902 Patentee after: GUANGZHOU TOPRED TESTING CERTIFICATION TECHNOLOGY CO., LTD. Address before: South of the Five Ridges Industrial Park, Shiling Town, Huadu District of Guangzhou City, Guangdong province 510800 Patentee before: Li Cong |