CN110376439A - A kind of non-metal material surface resistance testing device - Google Patents
A kind of non-metal material surface resistance testing device Download PDFInfo
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- CN110376439A CN110376439A CN201910759192.7A CN201910759192A CN110376439A CN 110376439 A CN110376439 A CN 110376439A CN 201910759192 A CN201910759192 A CN 201910759192A CN 110376439 A CN110376439 A CN 110376439A
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- electrode
- insulation
- conducting wire
- metal material
- surface resistance
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/041—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/08—Measuring resistance by measuring both voltage and current
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- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
The present invention relates to a kind of non-metal material surface resistance testing devices, it includes, insulation shell, positioned at the intracorporal gravity object of insulation shell, conducting wire and electrode insulation, support electrode outside insulation shell is to, detecting electrode pair, conducting wire female connector, insulation handle on insulation shell, and gravity object, electrode insulation, support electrode pair and detecting electrode are to being cascading, one end of conducting wire is connect with conducting wire female connector, and the other end is connect with support electrode.The test device structure is simple and convenient to operate, in operation, test device need to be only placed in the surface of measured object, the sheet resistance value of accurate measurement nonmetallic materials can be realized, measurement result is accurate, influence of the human factor to test result, the testing requirement suitable for different kind of material sheet resistance can be reduced.
Description
Technical field
The present invention relates to resistance test field more particularly to a kind of non-metal material surface resistance testing devices.
Background technique
Nonmetallic materials are due to its light weight, corrosion resistance strong, at low cost, impact resistance strong, handling ease, resistance to oxidation etc.
Feature is widely applied in all trades and professions, and achieves good economic results in society.Nonmetallic materials are mostly macromolecule
Polymer, distinguishing feature are accumulations easy to produce static electricity, and more than a certain amount of static discharge may occur for electrostatic accumulation.In order to keep away
Exempt from nonmetallic materials use process build-up of static charges and cause static discharge, needs root when combustible and explosive area is using nonmetallic materials
Reasonably selected according to material surface resistance, so that static discharge be avoided to ignite accident, this just need to material surface resistance into
The accurate measurement of row.
Current more common material surface resistance measurement method is according to parallel paint strip electrode method, and this method needs to test
Personnel make paint item with conductive copper paint, and the conductive paint item of two point probe contact material surface coatings realizes the survey of sheet resistance
Amount, this method have the defects that several respects: (1) the paint item of conductive copper paint production is difficult to be consistent in size, uniformity；
(2) conductive paint item needs one to two days time that can just measure after drying after completing, and test period is long；(3) point is visited
The pressure tested person personnel that needle is applied on paint item are affected, and are difficult to quantify, and testing pressure is material surface electricity
The important factor in order of resistance.It is therefore desirable to study new sheet resistance to test electrode, to solve parallel paint strip electrode method at present
Test surfaces resistance process there are the problem of.
Summary of the invention
For the technical problems in the prior art, primary and foremost purpose of the invention is: providing a kind of nonmetallic materials table
Surface resistance test device.Based on the purpose, the present invention at least provides following scheme:
A kind of non-metal material surface resistance testing device comprising:
Insulation shell is located at the intracorporal gravity object of insulation shell, conducting wire and electrode insulation, the branch outside insulation shell
Support electrode, detecting electrode, the conducting wire female connector on insulation shell, gravity object, electrode insulation, support electrode pair and inspection
Electrode is surveyed to being cascading, one end of conducting wire is connect with conducting wire female connector, and the other end is connect with support electrode.
Further, the support electrode pair and the detecting electrode be to being electrically connected, and the detecting electrode is to for conductive silicon
Rubber material.
Further, the support electrode pair is provided with card slot, the detection to the face being in contact with the detecting electrode
Electrode is to being inserted in the card slot, and interference is clamped between the support electrode.
Further, the support electrode is symmetrically disposed on the electrode insulation to the center of gravity line along electrode insulation
The end face of son.
Further, through-hole pair is offered in the gravity object and electrode insulation, the conducting wire is arranged in institute
State through-hole centering.
Further, the gravity object is stainless steel material, and the conducting wire is the copper conductor of outsourcing insulation.
Further, the insulation shell setting conducting wire shoulder of the box is provided with insulation handle.
Further, the insulation shell exposure electrode insulation is provided with the end face of the support electrode pair.
Further, the hardness of the conductive silicon rubber material is Shore 30.
Compared with prior art, the present invention at least has the following beneficial effects:
(1) the present invention provides a kind of non-metal material surface resistance testing device, the apparatus structure is simple, operation side
Just, repeatability is high, tested person human factor influences small, and when test is placed directly in the surface of object to be measured, can realize standard
The really sheet resistance value of measurement nonmetallic materials reduces influence of the human factor to test result and is suitable for different kind of material table
The testing requirement of surface resistance provides reliable foundation for the selection of combustible and explosive area nonmetallic materials, is the pre- of electrostatic accident
Anti- offer reliable guarantee.
(2) detecting electrode in test device of the invention use conductive silicon rubber material, good conductive capability with
And moderate hardness enables and preferably contacts between detecting electrode and measurand.
(3) gravity object uses stainless steel material, on the one hand can apply pressure to detecting electrode, on the other hand can be to setting
The conducting wire being placed in gravity object plays shielding action, avoids being interfered by outside.
Detailed description of the invention
Fig. 1 is the three-dimensional figure of non-metal material surface resistance testing device of the present invention.
Fig. 2 is the sectional view of non-metal material surface resistance testing device of the present invention.
Appended drawing reference: 1, detecting electrode pair, 2, support electrode pair, 3, electrode insulation, 4, insulation shell, 5, conducting wire mother connects
Head, 6, insulation handle, 7, gravity object, 8, conducting wire.
Specific embodiment
It is next below that the present invention will be further described in detail.
Non-metal material surface resistance testing device of the present invention is as shown in Figs. 1-2, which includes:
Detecting electrode 1, support electrode 2, electrode insulation 3, insulation shell 4, conducting wire female connector 5, insulation handle 6, gravity
Object 7, conducting wire 8.Wherein, gravity object 7, electrode insulation 3, support electrode are cascading to 2 and detecting electrode to 1, electricity
Pole insulator 3 will support electrode 2 to be dielectrically separated from 7 two parts of gravity object, and support electrode is electrically connected with detecting electrode to 1 to 2, weight
Power object 7, electrode insulation 3, conducting wire 8 are set in insulation shell 4, and electrode 2 and detecting electrode 1 is supported to be set to insulation shell
Outside 4.
In the present embodiment, insulation shell 4 is hexahedron structure, and the top surface of insulation shell 4 is provided with conducting wire female connector
5, conducting wire female connector one end is anode, and one end is cathode.Gravity object 7 and 3 stacking of electrode insulation are fixedly arranged on insulation shell 4
In, an end face of electrode insulation 3 is exposed from the bottom opening of insulation shell 4.A pair of of through-hole be disposed through gravity object 7 and
In electrode insulation 3, couple of conductor 8 is set in the through-hole, conducting wire 8 be outsourcing insulation copper conductor, one end of conducting wire 8 with
Corresponding conducting wire female connector 5 connects, and the other end is connected with corresponding support electrode 2.
Gravity object 7 is stainless steel material, not only can apply pressure to 1 to the detecting electrode, but also can rise to its conducting wire 8
Shielding action.
The lower end surface of electrode insulation 3 is exposed from the bottom opening of insulation shell 4, supports electrode to 2 along electrode insulation 3
Center of gravity line be symmetrically disposed on the end face of electrode insulation 3, detecting electrode is strip to 1, supports electrode to 2 and detecting electrode
Card slot is provided with to the face that 1 is in contact, detecting electrode is inserted in card slot to 1, and interference is clamped between support electrode, with convenient
The replacement of detecting electrode pair.In this embodiment, the section that detecting electrode edge applies pressure direction is square or rectangle, inspection
The width for surveying the surface that electrode is contacted with testee is more than or equal to 3mm.
Detecting electrode is conductive silicon rubber material to 1, and hardness is Shore 30, and the material electric conductivity is good, and hard
Spend moderate, which is used for detecting electrode clock synchronization, can make to contact between detecting electrode pair and testee preferable, is not easy to brokenly
The surface of bad testee.
In this embodiment, the upper surface that conducting wire female connector 5 is provided on insulation shell 4 is equipped with insulation handle 6, with side
Just the carrying of test device.
When test, which is placed in the surface of testee, so that detecting electrode is to 1 and testee surface
Contact, is connected to conducting wire female connector 5 for external ohmer.In test process, ohmer is nonmetallic to being tested by test electrode
Material applies voltage U, by detecting electrode to 1 side, flows out from detecting electrode to 1 other side by being tested nonmetallic materials
Electric current be I, by formula:
The sheet resistance of tested nonmetallic materials can be calculated.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (9)
1. a kind of non-metal material surface resistance testing device, characterized in that it comprises:
Insulation shell (4), gravity object (7), conducting wire (8) and the electrode insulation being located in insulation shell (4) are sub (3), are located at exhausted
The support electrode of edge shell (4) outside to (2), detecting electrode to (1),
Conducting wire female connector (5) on insulation shell (4),
Gravity object (7), electrode insulation (3), support electrode are cascading to (2) and detecting electrode to (1),
One end of conducting wire (8) is connect with conducting wire female connector (5), and the other end is connect with support electrode (2).
2. the non-metal material surface resistance testing device according to claim 1, which is characterized in that the support electrode pair
(2) (1) is electrically connected with the detecting electrode, the detecting electrode is conductive silicon rubber material to (1).
3. non-metal material surface resistance testing device according to claim 1 or 2, which is characterized in that the support electricity
Card slot extremely is provided with the face that the detecting electrode is in contact to (1) to (2), the detecting electrode is inserted in the card to (1)
In slot, interference is clamped between the support electrode (2).
4. the non-metal material surface resistance testing device according to claim 3, which is characterized in that the support electrode pair
(2) center of gravity line along the electrode insulation (3) is symmetrically disposed on the end face of the electrode insulation (3).
5. according to claim 1, the 2 or 3 non-metal material surface resistance testing device, which is characterized in that the gravity
Through-hole pair is offered in object (7) and the electrode insulation (3), the conducting wire (8) is arranged in the through-hole centering.
6. the non-metal material surface resistance testing device according to claim 5, which is characterized in that the gravity object (7)
For stainless steel material, the conducting wire (8) is the copper conductor of outsourcing insulation.
7. the non-metal material surface resistance testing device according to claim 5, which is characterized in that the insulation shell
(4) end face that the conducting wire female connector (5) is arranged is provided with insulation handle (6).
8. the non-metal material surface resistance testing device according to claim 5, which is characterized in that the insulation shell
(4) the exposure electrode insulation (3) is provided with the support electrode to the end face of (2).
9. the non-metal material surface resistance testing device according to claim 2, which is characterized in that the conductive silicon rubber
The hardness of material is Shore 30.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910759192.7A CN110376439A (en) | 2019-08-16 | 2019-08-16 | A kind of non-metal material surface resistance testing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910759192.7A CN110376439A (en) | 2019-08-16 | 2019-08-16 | A kind of non-metal material surface resistance testing device |
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| CN110376439A true CN110376439A (en) | 2019-10-25 |
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| CN201910759192.7A Pending CN110376439A (en) | 2019-08-16 | 2019-08-16 | A kind of non-metal material surface resistance testing device |
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Application publication date: 20191025 |
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| RJ01 | Rejection of invention patent application after publication |