CN110058072A - A kind of electroscope with contact detection - Google Patents
A kind of electroscope with contact detection Download PDFInfo
- Publication number
- CN110058072A CN110058072A CN201810049590.5A CN201810049590A CN110058072A CN 110058072 A CN110058072 A CN 110058072A CN 201810049590 A CN201810049590 A CN 201810049590A CN 110058072 A CN110058072 A CN 110058072A
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- Prior art keywords
- contact
- electroscope
- electrode
- high voltage
- electrode contact
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/145—Indicating the presence of current or voltage
- G01R19/155—Indicating the presence of voltage
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
The present invention relates to a kind of electroscopes with contact detection, to detect on electrical equipment with the presence or absence of operating voltage, the voltage electroscope includes high voltage testing device and detection device, the detection device includes the ontology for being mounted on high voltage testing device front end and the detection circuit that body interior is arranged in, the detection circuit includes first electrode contact, second electrode contact, third electrode contacts, current-limiting resistance, isolation optocoupler, light emitting diode, power supply and divider resistance, the first electrode contact, current-limiting resistance, the photophore of isolation optocoupler and second electrode contact are sequentially connected, the power supply, the light-receiving device of isolation optocoupler, light emitting diode and divider resistance are in turn connected to form circuit.Compared with prior art, the present invention has many advantages, such as contact detection, is convenient for measuring.
Description
Technical field
The present invention relates to operating voltage electroscopic devices on a kind of electrical equipment, can identify safety and danger more particularly, to a kind of
The electroscope of dangerous voltage.
Background technique
Electroscope is whether a kind of detection object is charged and the instrument of rough estimate carried charge size.High voltage electroscope is
High-tension apparatus of the main test equipment voltage-to-ground in 1000V or more.Currently, well known high voltage electroscope is by three part groups
At being detection part, insulated part and handshake part respectively.What is be widely used on the market has light emitting-type, sound-light type and windmill type
Three kinds.When the contact electrode of electroscope is touched testee by operator, when measured object electricity with higher relative to the earth
When pressure, different types of electroscope can prompt whether operator's measured object charges with different modes.
Current high voltage electroscope most on the market all has self-checking, can be by selftest module come to electroscope
Quality is judged.But there is no modules whether just to can ensure that electroscope contact electrode and measured object for most of high voltage electroscopes
Really contact.It is easy to cause operator's false judgment in this way, so that mistake occurs in testing result.If maintenance personal is directly right at this time
Measured object maintenance, then may cause personnel casualty accidents.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide one kind with contact detection
Electroscope.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of electroscope with contact detection, to detect with the presence or absence of operating voltage on electrical equipment, which is tested
Electric appliance includes high voltage testing device and detection device, and the detection device includes the ontology for being mounted on high voltage testing device front end
And the detection circuit of body interior is set, the detection circuit includes first electrode contact, second electrode contact, third
Electrode contacts, current-limiting resistance, isolation optocoupler, light emitting diode, power supply and divider resistance, the first electrode contact, current limliting
Resistance, the photophore of isolation optocoupler and second electrode contact are sequentially connected, the power supply, isolation optocoupler light-receiving device, shine
Diode and divider resistance are in turn connected to form circuit, the first electrode contact and second electrode contact and to be measured electrical
Equipment surface contact, described third electrode contacts one end is linked between current-limiting resistance and the photophore of isolation optocoupler, another
End is connect with high voltage testing device.
The ontology is the U-shaped structure of lower openings, and the first electrode contact and second electrode contact are set respectively
It sets at two tops of U-shaped structure, the high voltage testing device protrudes into the lower openings and third electrode contacts electricity of U-shaped structure
Connection.
The high voltage testing device includes sequentially connected handle, insulating part and indicator, the contact of the indicator
Electrode is connect by extension with the other end of third electrode contacts.
Handguard and the anti-skidding insulating layer of polytetrafluoroethylene (PTFE), the anti-skidding insulating layer of the polytetrafluoroethylene (PTFE) are arranged on the handle
Outer surface is equipped with spiral anti-skid chequer.
The insulating part is equipped with limit mark.
The electrical equipment includes electric wire.
The model TLP521 linear optical coupling of the isolation optocoupler.
The handle is hollow telescoping handle.
Two tops of the U-shaped structure are respectively equipped with the hook connecting with first electrode contact and second electrode contact
Or fixing clamp.
Compared with prior art, the invention has the following advantages that
One, contact detection: the present invention is by being additionally arranged contact detecting apparatus at the top of original high voltage electroscope, not only
Can overcome the shortcomings of existing high voltage electroscope can not detect whether electroscope contact electrode correctly touches testee, it is ensured that
Contact electrode is correctly contacted with measured object, the safety of measurement is effectively guaranteed, and also can be carried out high voltage testing, structure letter
Single, quality is low, at low cost, easy to operate, effectively reduces the generation of human accident.
Two, be convenient for measuring: the present invention can have easily and effectively in two tops of U-shaped structure setting hook or fixing clamp
It is fixed with testee physics, cooperation contact detection can more accurately judge whether to contact, and increase reliability.
Detailed description of the invention
Fig. 1 is the schematic diagram of detection circuit.
Fig. 2 is the connection figure of detection device and electric wire.
Fig. 3 is the structure chart of high voltage testing device.
Fig. 4 is that assembling of the invention uses structure chart.
Description of symbols in figure:
1- indicator, 2- limit mark, 3- insulating part, 4- handguard, 5- handle, 6- extension 7- contact electrode, 8- paillon.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
As shown in Figs 1-4, the present invention increases a detection device before the electrode contacts of general high voltage electroscope, to sentence
Whether disconnected testee effectively contacts.The detection circuit of detection device includes current-limiting resistance, isolation optocoupler, light emitting diode and one
A power module.When user touches electric wire using electroscope, whether the detection circuit of electroscope first can judge electroscope
Electric wire really is touched, the LED light of electroscope detection circuit can light when electric wire is accessed, and illustrate electrical verification at this time
Device and line contacts are good, and then the rear end of electroscope can detecte out whether electric wire charges.
Working principle of the present invention is as follows:
First electrode contact and the first electricity when two tops of the U-shaped ontology of electroscope and line contacts, in detection circuit
Pole contact can pass through first current-limiting resistance subsequently into the photophore of optocoupler with conductive contact, electric current.This can be isolated in optocoupler
Partial electricity, and an optical signal is generated, then light-receiving device will receive optical signal and be translated into electric signal, finally make
Light emitting diode can be lit, and prove that electroscope and line contacts are intact at this time.
When detection device confirmation line contacts are good, electroscope work, when examined object contacts electrode contacts, from
The charge of body institute band can pass on the paillon of the indicator in high voltage electroscope.Since like charges are mutually exclusive, paillon will be certainly
It is dynamic to separate, it opens angled.The size of object carried charge can be estimated according to the angled size of two paillons.Then according to not
With the type of high voltage electroscope, there is different reminding methods, light emitting-type electroscope can be used, electroscope can shine when there is electricity
User's measured object is reminded to charge, in addition common there are also sound-light type and windmill-shaped high voltage electroscopes.
Claims (9)
1. a kind of electroscope with contact detection, to detect on electrical equipment with the presence or absence of operating voltage, which is characterized in that
The voltage electroscope includes high voltage testing device and detection device, and the detection device includes before being mounted on high voltage testing device
The ontology at end and the detection circuit that body interior is arranged in, the detection circuit include first electrode contact, second electrode
Contact, third electrode contacts, current-limiting resistance, isolation optocoupler, light emitting diode, power supply and divider resistance, the first electrode
Contact, current-limiting resistance, the photophore of isolation optocoupler and second electrode contact are sequentially connected, the power supply, isolation optocoupler by
Light device, light emitting diode and divider resistance are in turn connected to form circuit, the first electrode contact and second electrode contact with
Electrical equipment surface contact to be measured, described third electrode contacts one end is linked into the photophore of current-limiting resistance and isolation optocoupler
Between, the other end is connect with high voltage testing device.
2. a kind of electroscope with contact detection according to claim 1, which is characterized in that the ontology is lower part
The U-shaped structure of opening, the first electrode contact and second electrode contact are separately positioned on two tops of U-shaped structure, institute
The lower openings that the high voltage testing device stated protrudes into U-shaped structure are electrically connected with third electrode contacts.
3. a kind of electroscope with contact detection according to claim 1, which is characterized in that the high voltage testing dress
It sets including sequentially connected handle, insulating part and indicator, the contact electrode of the indicator passes through extension and third electrode
The other end of contact connects.
4. a kind of electroscope with contact detection according to claim 3, which is characterized in that be arranged on the handle
Handguard and the anti-skidding insulating layer of polytetrafluoroethylene (PTFE), the anti-skidding insulating layer outer surface of the polytetrafluoroethylene (PTFE) are equipped with spiral anti-skid chequer.
5. a kind of electroscope with contact detection according to claim 3, which is characterized in that set on the insulating part
Limited mark.
6. a kind of electroscope with contact detection according to claim 1, which is characterized in that the electrical equipment packet
Include electric wire.
7. a kind of electroscope with contact detection according to claim 1, which is characterized in that the isolation optocoupler
Model TLP521 linear optical coupling.
8. a kind of electroscope with contact detection according to claim 3, which is characterized in that the handle is hollow
Telescoping handle.
9. a kind of electroscope with contact detection according to claim 2, which is characterized in that the U-shaped structure
Two tops are respectively equipped with the hook or fixing clamp connecting with first electrode contact and second electrode contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810049590.5A CN110058072A (en) | 2018-01-18 | 2018-01-18 | A kind of electroscope with contact detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810049590.5A CN110058072A (en) | 2018-01-18 | 2018-01-18 | A kind of electroscope with contact detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110058072A true CN110058072A (en) | 2019-07-26 |
Family
ID=67315161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810049590.5A Pending CN110058072A (en) | 2018-01-18 | 2018-01-18 | A kind of electroscope with contact detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110058072A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110376423A (en) * | 2019-07-30 | 2019-10-25 | 国网河南省电力公司商丘供电公司 | A kind of electric power apparatus examination high voltage electroscope |
| CN113917243A (en) * | 2021-10-09 | 2022-01-11 | 重庆师范大学 | High-precision optical electroscope device and system based on surface plasmon |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB565049A (en) * | 1943-07-24 | 1944-10-24 | Miron Peter Rubert | Improvements in or relating to electric testing device |
| CN2065761U (en) * | 1989-11-24 | 1990-11-14 | 李奕刚 | Liquid crystal ad/dc induction electricity testing device |
| CN2556652Y (en) * | 2002-06-16 | 2003-06-18 | 滕洪福 | Universal test pencil |
| CN101703331A (en) * | 2009-10-30 | 2010-05-12 | 刘博宇 | Lightning-protection shoes |
| CN102175935A (en) * | 2011-01-14 | 2011-09-07 | 陆晋荣 | Intelligent multifunctional electric appliance testing table and control method |
| CN202256463U (en) * | 2011-10-12 | 2012-05-30 | 赵成仁 | Residual voltage interference resistant multifunctional electroscope |
| CN103954826A (en) * | 2014-05-09 | 2014-07-30 | 国家电网公司 | High-voltage alternating-current electroscope |
| CN203838231U (en) * | 2014-05-09 | 2014-09-17 | 国家电网公司 | High-voltage electricity test device |
| CN105717348A (en) * | 2016-04-19 | 2016-06-29 | 国网江西省电力公司南昌供电分公司 | Electroscope capable of achieving agile steering |
| CN205769338U (en) * | 2016-05-24 | 2016-12-07 | 固安信通信号技术股份有限公司 | Track pulse transmitter |
| CN207924008U (en) * | 2018-01-18 | 2018-09-28 | 元壤实业（上海）有限公司 | A kind of electroscope with contact detection |
-
2018
- 2018-01-18 CN CN201810049590.5A patent/CN110058072A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB565049A (en) * | 1943-07-24 | 1944-10-24 | Miron Peter Rubert | Improvements in or relating to electric testing device |
| CN2065761U (en) * | 1989-11-24 | 1990-11-14 | 李奕刚 | Liquid crystal ad/dc induction electricity testing device |
| CN2556652Y (en) * | 2002-06-16 | 2003-06-18 | 滕洪福 | Universal test pencil |
| CN101703331A (en) * | 2009-10-30 | 2010-05-12 | 刘博宇 | Lightning-protection shoes |
| CN102175935A (en) * | 2011-01-14 | 2011-09-07 | 陆晋荣 | Intelligent multifunctional electric appliance testing table and control method |
| CN202256463U (en) * | 2011-10-12 | 2012-05-30 | 赵成仁 | Residual voltage interference resistant multifunctional electroscope |
| CN103954826A (en) * | 2014-05-09 | 2014-07-30 | 国家电网公司 | High-voltage alternating-current electroscope |
| CN203838231U (en) * | 2014-05-09 | 2014-09-17 | 国家电网公司 | High-voltage electricity test device |
| CN105717348A (en) * | 2016-04-19 | 2016-06-29 | 国网江西省电力公司南昌供电分公司 | Electroscope capable of achieving agile steering |
| CN205769338U (en) * | 2016-05-24 | 2016-12-07 | 固安信通信号技术股份有限公司 | Track pulse transmitter |
| CN207924008U (en) * | 2018-01-18 | 2018-09-28 | 元壤实业（上海）有限公司 | A kind of electroscope with contact detection |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110376423A (en) * | 2019-07-30 | 2019-10-25 | 国网河南省电力公司商丘供电公司 | A kind of electric power apparatus examination high voltage electroscope |
| CN110376423B (en) * | 2019-07-30 | 2024-05-17 | 国网河南省电力公司商丘供电公司 | High-voltage electroscope for power equipment maintenance |
| CN113917243A (en) * | 2021-10-09 | 2022-01-11 | 重庆师范大学 | High-precision optical electroscope device and system based on surface plasmon |
| CN113917243B (en) * | 2021-10-09 | 2023-07-25 | 重庆师范大学 | High-precision optical electroscope device and system based on surface plasmons |
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