CN104133134A - Corona charge measuring device - Google Patents
Corona charge measuring device Download PDFInfo
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- CN104133134A CN104133134A CN201410348415.8A CN201410348415A CN104133134A CN 104133134 A CN104133134 A CN 104133134A CN 201410348415 A CN201410348415 A CN 201410348415A CN 104133134 A CN104133134 A CN 104133134A
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- corona
- measured sample
- sample
- charge
- power supply
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Abstract
The invention provides a corona charge measuring device comprising a high-voltage direct-current power supply, a movable flat plate, a corona discharge tip cluster, a rotary vane electrostatic potentiometer, and a grounding chassis. A measured sample is placed on the grounding chassis. The upper surface of the movable flat plate is a grounding metal layer, the middle part is made of insulating material, and the lower surface is equipped with the corona discharge tip cluster. The corona discharge tip cluster is connected with the high-voltage direct-current power supply. The rotary vane electrostatic potentiometer is placed right above the measured sample. According to the corona charge measuring device of the invention, the corona discharge tip cluster discharges electricity to the measured sample to electrify the measured sample, and then the process of charge leakage of the measured sample is measured and the process of charge decay is recorded, so that accurate data can be provided for the study of electrostatic performance of the measured sample.
Description
Technical field
The present invention relates to charge measurement field, relate in particular to a kind of corona-type charge detecting device.
Background technology
In fact the electrostatic electrification process of object is exactly the homeostasis process of charge generation and dissipation.Insulated with material degree is higher, electrostatic charge is just longer die-away time, and leak charge ability is more weak, and band power is just stronger, thereby the possibility that causes electrostatic hazard is just larger, so electrostatic charge die-away time and electrostatic charge decay half life period are the important parameters of weighing material antistatic performance.In view of this, the present invention proposes a kind of corona-type charge detecting device, by corona point bunch, to sample, discharge, make sample starting point, then sample charge leakage process is measured, record charge decay process, thereby can provide accurate data to the antistatic property of research sample.
Summary of the invention
In view of this, the invention provides a kind of corona-type charge detecting device, comprise high-voltage DC power supply, removable flat board, corona point bunch, Spiralism type electrometer, hot chassis, wherein, sample is positioned on described hot chassis, the upper surface of described removable flat board is ground metal layer, centre is insulating material, lower surface is provided with corona point bunch, described corona point bunch is connected with high-voltage DC power supply, described Spiralism type electrometer be positioned over described sample directly over.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or scheme of the prior art, to the accompanying drawing of required use in embodiment be briefly described below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of the corona-type charge detecting device that Fig. 1 provides for one embodiment of the invention.
Embodiment
For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is carried out to clear, complete description, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, the every other embodiment that those of ordinary skills obtain under the prerequisite of not making creative work, belongs to the scope of protection of the invention.
The structural representation of the corona-type charge detecting device that Fig. 1 provides for one embodiment of the invention, as shown in Figure 1, the corona-type charge detecting device of the present embodiment, comprise high-voltage DC power supply 1, removable dull and stereotyped 2, corona point bunches 3, Spiralism type electrometer 4, hot chassis 5, wherein, sample 6 is positioned on described hot chassis 5, described removable dull and stereotyped 2 upper surface is ground metal layer, centre is insulating material, lower surface is provided with corona point bunches 3, described corona point bunches 3 is connected with high-voltage DC power supply 1, described Spiralism type electrometer 4 be positioned over described sample 6 directly over.
The device of the present embodiment makes measured material maintain static, spray electric installation (removable flat board and corona point bunch) motion.The upper surface of removable flat board is ground metal layer, and when electric discharge, for shielding the input end of electrometer, centre is insulating material, and lower surface is installed corona point bunch.During test, first by corona point bunch, to sample, discharged, through after the discharge time of about 20ms, remove rapidly flat board, Spiralism type electrometer responds fast, measures in real time sample surface electrical place value, thereby can calculate the electrostatic attenuation time.The present embodiment device can be directly used in the charge decay time constant of measuring sample or the time that decays to another potential value from a certain potential value, and can utilize digital storage oscilloscope to record the decay waveform of specimen surface electrostatic potential.
Finally it should be noted that: above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement, and these modifications or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (1)
1. a corona-type charge detecting device, it is characterized in that, described device comprises high-voltage DC power supply, removable flat board, corona point bunch, Spiralism type electrometer, hot chassis, wherein, sample is positioned on described hot chassis, the upper surface of described removable flat board is ground metal layer, centre is insulating material, lower surface is provided with corona point bunch, described corona point bunch is connected with high-voltage DC power supply, described Spiralism type electrometer be positioned over described sample directly over.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410348415.8A CN104133134A (en) | 2014-07-16 | 2014-07-16 | Corona charge measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410348415.8A CN104133134A (en) | 2014-07-16 | 2014-07-16 | Corona charge measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104133134A true CN104133134A (en) | 2014-11-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410348415.8A Pending CN104133134A (en) | 2014-07-16 | 2014-07-16 | Corona charge measuring device |
Country Status (1)
| Country | Link |
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| CN (1) | CN104133134A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007292685A (en) * | 2006-04-27 | 2007-11-08 | Harada Sangyo Kk | Charge density measuring device |
| CN101639502A (en) * | 2009-07-03 | 2010-02-03 | 西安交通大学 | System for automatically measuring charge distribution on surface of solid medium |
| CN102520259A (en) * | 2011-12-09 | 2012-06-27 | 天津大学 | Multi-sample surface charge measuring device |
| CN103472421A (en) * | 2013-06-27 | 2013-12-25 | 北京东方计量测试研究所 | Electrostatic charge analyzer calibrating device and electrostatic capacitor measuring method |
| CN203965546U (en) * | 2014-07-16 | 2014-11-26 | 奉化市宇创产品设计有限公司 | Corona-type charge detecting device |
-
2014
- 2014-07-16 CN CN201410348415.8A patent/CN104133134A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007292685A (en) * | 2006-04-27 | 2007-11-08 | Harada Sangyo Kk | Charge density measuring device |
| CN101639502A (en) * | 2009-07-03 | 2010-02-03 | 西安交通大学 | System for automatically measuring charge distribution on surface of solid medium |
| CN102520259A (en) * | 2011-12-09 | 2012-06-27 | 天津大学 | Multi-sample surface charge measuring device |
| CN103472421A (en) * | 2013-06-27 | 2013-12-25 | 北京东方计量测试研究所 | Electrostatic charge analyzer calibrating device and electrostatic capacitor measuring method |
| CN203965546U (en) * | 2014-07-16 | 2014-11-26 | 奉化市宇创产品设计有限公司 | Corona-type charge detecting device |
Non-Patent Citations (1)
| Title |
|---|
| 肖志伟等: "静电电荷衰减测试研究现状及对策", 《仪表技术》 * |
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Legal Events
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| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141105 |
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| RJ01 | Rejection of invention patent application after publication |