CN208043974U - A kind of Dielectric Tester calibrating installation - Google Patents
A kind of Dielectric Tester calibrating installation Download PDFInfo
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- CN208043974U CN208043974U CN201820118483.9U CN201820118483U CN208043974U CN 208043974 U CN208043974 U CN 208043974U CN 201820118483 U CN201820118483 U CN 201820118483U CN 208043974 U CN208043974 U CN 208043974U
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- reservoir
- calibrating installation
- mounting groove
- pressure sensor
- pickup assembly
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Abstract
The utility model belongs to test and measuring instrument field, in particular to a kind of Dielectric Tester calibrating installation.Including signal pickup assembly, the signal pickup assembly is connected with MCU, MCU is also associated with sample circuit, the wherein described signal pickup assembly includes reservoir, the top peripheral package of the reservoir is equipped with insulating materials, the periphery of the insulating materials is equipped with conductive plate and pressure sensor mounting groove, the conductive plate is to stack to be arranged with pressure sensor mounting groove, the peripheral centre position of the reservoir is equipped with infraluminescence pipe and photoelectric receiving tube, and the bottom of the reservoir (5) is equipped with weighing sensor.The utility model high degree of automation, it is easy to operate, it is detected by infraluminescence pipe, photoelectric receiving tube when can be dripped by water droplet, is detected automatically.And strong antijamming capability, the interference effect of the bias lights such as daylight, light is eliminated by adjusting the infrared ray that infraluminescence pipe is sent out.
Description
Technical field
The utility model belongs to test and measuring instrument field, in particular to a kind of Dielectric Tester calibrating installation.
Background technology
Dielectric Tester is the Special test instrument manufactured and designed by the standards requirement such as GB/T4207, IEC60112, is fitted
Measurement for solid insulating material phase ratio creepage tracking index and proof tracking index in humid conditions.Tester master
To include that electrode experimental rig, hookup and dropper are constituted, electrode experimental rig mainly draws including platinum electrode, brass
Shen part, support (pallet), dropping liquid needle, insulation tube and weight counterweight (adjustment electrode is to patterned surface active force use).
Its working principle is that：It is almost horizontal plane to be supported sample upper surface, applies an electric stress between two electrodes, between electrode
Specimen surface is subjected to continuous electrolysis drop, until overcurrent device work, or sustained combustion occurs or passes through until testing.It is each
Most 50 drops or 100 drops are tested, electrolysis drop is about 20mg, and interval 30s drips, and specimen surface platinum electrode spacing is 4mm.
When experiment, apply 100V~600V alternating voltages between electrode.
The master file for carrying out Dielectric Tester calibration foundation domestic at present has：JJF (Zhejiang) 1087-2012 is calibrated
Specification, the assay method of GB/T 4207-2012 solid insulating materials resistance to electric trace index and comparative tracking index, calibration item
Mesh mainly has：When distance and angle between electrode sections size, electrode gradient, the two poles of the earth, electrode are to active force, the dropping liquid of specimen surface
Between interval, test voltage, electrode current, voltage drop etc..The calibration of electrode size at present is mainly standard vernier caliper, omnipotent angle
Spend ruler, standard inclinator.And other calibration items mainly use normal voltage ammeter, stopwatch, electronic balance and dynamometer point
It does not calibrate, calibration accepted standard device broad categories, especially dropping liquid time interval rely primarily on manual operation, and error is larger.
Invention content
In order to solve problem above, the purpose of this utility model is to provide a kind of high degree of automation, easy to operate, resists dry
Disturb that ability is strong, it can other many calibration items be such as in addition to electrode size to Dielectric Tester：Electrode is to specimen surface
Active force, dropping liquid time interval, test voltage, electrode current, voltage drop, comparative tracking index (CTI), resistance to electric trace index
(PTI), the intelligent calibrating device that the projects such as electric traceization failure are calibrated.
In order to achieve the goal above, the technical solution of the utility model is：
A kind of Dielectric Tester calibrating installation, including signal pickup assembly (8), the signal pickup assembly (8) is even
It is connected to MCU (9), MCU (9) is also associated with sample circuit (10), wherein the signal pickup assembly (8) includes reservoir (5), institute
The top peripheral package for stating reservoir (5) is equipped with insulating materials (6), the periphery of the insulating materials (6) be equipped with conductive plate (1) and
Pressure sensor mounting groove (2), the conductive plate (1) are to stack to be arranged with pressure sensor mounting groove (2), the reservoir
(5) peripheral centre position is equipped with infraluminescence pipe (3) and photoelectric receiving tube (4), and the bottom of the reservoir (5), which is equipped with, weighs
Sensor (7).Further, the pressure sensor mounting groove (2) is movable setting.
Further, the conductive plate (1) is brass conductive disk.
Further, the glow frequency of the infraluminescence pipe (3) is 38k Hz.
In order to improve transmission power and eliminate the interference effects of the bias lights such as daylight, light, the reliability of circuit is improved, it is right
The infrared ray that infraluminescence pipe is sent out is modulated.When frequency is 38kHz, reliability highest, anti-interference ability is best.
The beneficial effects of the utility model are：
(1) high degree of automation, it is easy to operate, it is examined by infraluminescence pipe, photoelectric receiving tube when can be dripped by water droplet
It measures, is detected automatically.
(2) strong antijamming capability eliminates the bias lights such as daylight, light by adjusting the infrared ray that infraluminescence pipe is sent out
Interference effect.
Description of the drawings
Fig. 1 is the structural schematic diagram front view of the utility model；
Fig. 2 is the structural schematic diagram vertical view of the utility model
Fig. 3 is circuit diagram；
Fig. 4 is digital circuit block diagram；
Wherein：1, brass conductive disk, 2, pressure sensor mounting groove, 3, infraluminescence pipe, 4, photoelectric receiving tube, 5, storage
Liquid bath, 6, insulating materials, 7, weighing sensor, 8, signal pickup assembly, 9, MCU, 10, sample circuit.
Specific implementation mode
The utility model is further described in detail in conjunction with the embodiments below by way of attached drawing.
Such as Fig. 1 and Fig. 2, a kind of Dielectric Tester calibrating installation, including signal pickup assembly (8), the signal are adopted
Acquisition means (8) are connected with MCU (9), and MCU (9) is also associated with sample circuit (10), wherein the signal pickup assembly (8) includes
The top peripheral package of reservoir (5), the reservoir (5) is equipped with insulating materials (6), and the periphery of the insulating materials (6) is set
It is to stack to set with pressure sensor mounting groove (2) to have conductive plate (1) and pressure sensor mounting groove (2), the conductive plate (1)
It sets, the peripheral centre position of the reservoir (5) is equipped with infraluminescence pipe (3) and photoelectric receiving tube (4), the reservoir (5)
Bottom be equipped with weighing sensor (7).Further, the pressure sensor mounting groove (2) is movable setting.It is described to lead
Electroplax (1) is brass conductive disk.The glow frequency of infraluminescence pipe (3) is 38kHz.
Input terminal is coupled with to two electrode tips of tested tester by brass conductive disk, K1 is set as shown in Figure 2
In closed state, the standard amperemeters carried by calibrating installation is calibrated.
Input terminal is coupled with to two electrode tips of tested tester by brass conductive disk, K1 is set as shown in Figure 2
In the open state, the standard voltmeter carried by calibrating installation is calibrated.
Input terminal is coupled with to two electrode tips of tested tester by brass conductive disk, K1 is set as shown in Figure 2
In closed state, under test voltage minimum shelves full range voltage, short circuit current is adjusted to 0.5A or more.Firing test instrument,
Utility model detects starts timing when electric current is more than 0.5A, stops timing when overcurrent relay starts action, record prolongs
When time data.Duplicate measurements three times, is averaged as overcurrent relay delay time, error must satisfy GB/
The requirement of T4207-2012, while as the judgement of tester electricity trace invalidation functions.
Claims (4)
1. a kind of Dielectric Tester calibrating installation, it is characterised in that：Including signal pickup assembly (8), the signal acquisition
Device (8) is connected with MCU (9), and MCU (9) is also associated with sample circuit (10), wherein the signal pickup assembly (8) includes storage
The top peripheral package of liquid bath (5), the reservoir (5) is equipped with insulating materials (6), and the periphery of the insulating materials (6) is equipped with
Conductive plate (1) and pressure sensor mounting groove (2), the conductive plate (1) are to stack to be arranged with pressure sensor mounting groove (2),
The peripheral centre position of the reservoir (5) is equipped with infraluminescence pipe (3) and photoelectric receiving tube (4), the bottom of the reservoir (5)
Portion is equipped with weighing sensor (7).
2. a kind of Dielectric Tester calibrating installation according to claim 1, it is characterised in that：The pressure sensor
Mounting groove (2) is movable setting.
3. a kind of Dielectric Tester calibrating installation according to claim 1, it is characterised in that：The conductive plate (1)
For brass conductive disk.
4. a kind of Dielectric Tester calibrating installation according to claim 1, it is characterised in that：The infraluminescence pipe
(3) glow frequency is 38kHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820118483.9U CN208043974U (en) | 2018-01-24 | 2018-01-24 | A kind of Dielectric Tester calibrating installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820118483.9U CN208043974U (en) | 2018-01-24 | 2018-01-24 | A kind of Dielectric Tester calibrating installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208043974U true CN208043974U (en) | 2018-11-02 |
Family
ID=63954040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820118483.9U Active CN208043974U (en) | 2018-01-24 | 2018-01-24 | A kind of Dielectric Tester calibrating installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208043974U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108445338A (en) * | 2018-01-24 | 2018-08-24 | 镇江市计量实验工厂 | A kind of Dielectric Tester calibrating installation |
-
2018
- 2018-01-24 CN CN201820118483.9U patent/CN208043974U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108445338A (en) * | 2018-01-24 | 2018-08-24 | 镇江市计量实验工厂 | A kind of Dielectric Tester calibrating installation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Chaohui Inventor after: Cao Jianqiu Inventor after: Xu Fangping Inventor after: Zhong Qidong Inventor before: Cao Jianqiu Inventor before: Xu Fangping Inventor before: Zhong Qidong |