CN101706529A - Device and method for testing conductivity of solid powder material - Google Patents
Device and method for testing conductivity of solid powder material Download PDFInfo
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- CN101706529A CN101706529A CN200910057989A CN200910057989A CN101706529A CN 101706529 A CN101706529 A CN 101706529A CN 200910057989 A CN200910057989 A CN 200910057989A CN 200910057989 A CN200910057989 A CN 200910057989A CN 101706529 A CN101706529 A CN 101706529A
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Abstract
The invention relates to the technical field of electronic equipment test and discloses a device and a method for testing the conductivity of a solid powder material, particularly a solid powder material that is difficult to form by pressing. The testing device of the invention comprises an inner shell (1) of a molding shell, an outer shell (2) of the molding shell, contact pieces (3), an insulated sealing ring (4) and a resistance test device (5), wherein the two contact pieces (3) are connected with the inner shell (1) of the molding shell and the outer shell (2) of the molding shell respectively; the insulated sealing ring (4) is sleeved outside the inner shell (1) of the molding shell; and the two pointers of the resistance test device (5) are connected with the two contact pieces (3) respectively. The testing method of the invention comprises the steps of the solid powder filling, device sealing, resistance test, conductivity calculation and the like. The testing device and the testing method of the invention can test the conductivity of solid powder materials including the solid powder materials that is difficult to form by pressing. The device has the advantages of simple structure, convenient operation, high reliability and high stability.
Description
Technical field
The present invention relates to the electronic equipment technical field of measurement and test, relate in particular to a kind of solid powder material that is used to test, particularly be difficult to the proving installation and the method for testing of conductivity of the solid powder material of compression moulding.
Background technology
At present, four probe method and two kinds of methods of AC impedence method are often adopted in the test of conductivity of solid powder material, these two kinds of methods require solid powder material just can measure after the compression moulding.For the pressed powder that much is difficult to compression moulding, existing these two kinds of methods have certain limitation.For this reason, in actual applications, in dusty material, add certain cementing agent usually, and then compression moulding is tested.Yet, this method complicated operation, and the adding of cementing agent makes test result have certain deviation.Therefore, press for a kind of proving installation and method of testing that is used to test the conductivity of the solid powder material that is difficult to compression moulding of research and development.
Summary of the invention
The object of the present invention is to provide a kind of proving installation and method of testing of pressed powder conductivity, it can carry out the conductivity test to the solid powder material that is difficult to compression moulding.
Electric conductivity test device of the present invention, its feature comprises:
Become shell inner casing (1), become shell shell (2), contact chip (3), insulated enclosure circle (4), resistance test device (5).Wherein:
Two contact chips (3) are connected with becoming shell inner casing (1), one-tenth shell shell (2) respectively, and insulated enclosure circle (4) is enclosed within into the outside of shell inner casing (1), and two pointers of resistance test device (5) link to each other with two contact chips (3) respectively.
Described one-tenth shell shell (2) is a cylinder blanket, bottom surface opening of cylinder blanket, and another bottom center is the aperture of diameter 2mm, cylinder blanket side inner face is a flank of thread;
Described one-tenth shell inner casing (1) is a cylinder blanket, bottom surface opening of cylinder blanket, and another bottom center is the aperture of diameter 2mm;
Described contact chip (3) is very high sheet metal of conductivity or polymer flake, sticks to into respectively on shell inner casing (1) and the inner face that becomes shell shell (2) bottom surface;
Described insulated enclosure circle (4) sticks on the outside surface of shell inner casing (1) side, and the surface is a flank of thread, is complementary with becoming shell shell (2) side inner face flank of thread;
Described resistance test device (5) is the instrument that electronic multimeter or electrochemical workstation etc. can the test resistance values, and this device comprises two pointers, links to each other with two contact chips (3) respectively during test.
The proving installation of pressed powder conductivity, insulated enclosure circle have been avoided becoming the shell shell and becoming contacting of shell inner casing, thereby have avoided becoming the influence of shell to pressed powder resistance value test result; Contact chip is very high sheet metal of conductivity or polymer flake, compares with add cementing agent in pressed powder, and is much smaller to the influence of pressed powder resistance value, thereby reduced measuring error, improved the accuracy of conductivity test.
Method of testing of the present invention comprises the steps:
1) filling of pressed powder: institute is surveyed the pressed powder sample insert in the shell inner casing (1), compacting, the powder height is slightly larger than into shell inner casing (1) highly;
2) Zhuan Zhi sealing: will become shell shell (2) to be put in on the shell inner casing (1), and aim at screw thread and tighten, until insulated enclosure circle (4) edge contact to becoming shell shell (2) bottom surface;
3) measurement of resistance: two pointers of resistance test device (5) are inserted into shell shell (2) respectively and become in shell inner casing (1) the bottom center hole and with contact chip (3) well contact, regulate resistance test device (5), write down and analyze its measurement result;
4) calculate conductivity:
The computing formula of conductivity is:
σ＝d/RA (1)
Wherein, R is the measured value of electronic multimeter, and unit is Ω; A is for becoming shell inner casing base area, and unit is cm
2D is for becoming shell inner casing inner core height, and unit is cm.
Method of the present invention is suitable for solid powder material, is particularly suited for being difficult to the test of the conductivity of solid powder material of compression moulding.
Proving installation of the present invention is simple in structure, and is easy to operate, has higher reliability and stability.
Description of drawings
Fig. 1 is an electric conductivity test device synoptic diagram of the present invention.1 for becoming the shell inner casing, and 2 for becoming the shell shell, and 3 is contact chip, and 4 is the insulated enclosure circle, and 5 is the resistance test device.
Fig. 2 is the volt-ampere curve graph of a relation of graphitic carbon material.
Embodiment
Below by EXPERIMENTAL EXAMPLE the present invention is specifically described; it is important to point out that present embodiment only is used for that the present invention will be further described; can not be interpreted as limiting the scope of the invention, the person skilled in the art in this field can make some nonessential improvement and adjustment according to the content of the invention described above.
The present invention utilizes above-mentioned proving installation and method, and the graphitic carbon conductivity of electrolyte materials is tested.The graphitic carbon dusty material is filled to shell inner casing and compacting, tests the resistance value R of graphite carbon dust behind the packoff with electronic multimeter or electrochemical workstation; Become shell internal medicine base area A=8.70cm
2, become shell inner casing inner core height d=1.00cm; Calculating in the data substitution formula (1) is promptly obtained corresponding conductivity.Fig. 2 be utilize that electrochemical workstation obtains the whole story carbon the volt-ampere curve graph of a relation, figure can calculate the resistance value R=143 Ω of graphitic carbon thus.
Claims (3)
1. a proving installation that is used to test conductivity of solid powder material comprises into shell inner casing (1), becomes shell shell (2), contact chip (3), and insulated enclosure circle (4), resistance test device (5) is characterized in that:
Two contact chips (3) respectively with become shell inner casing (1) and to become shell shell (2) bonding, insulated enclosure circle (4) is enclosed within into the outside of shell inner casing, two pointers of resistance test device (5) link to each other with two contact chips (3) respectively.
2. by the described a kind of proving installation that is used to test conductivity of solid powder material of claim 1, it is characterized in that:
Described one-tenth shell shell (2) is a cylinder blanket, bottom surface opening of cylinder blanket, and another bottom center is the aperture of diameter 2mm, cylinder blanket side inner face is a flank of thread;
Described one-tenth shell inner casing (1) is a cylinder blanket, bottom surface opening of cylinder blanket, and another bottom center is the aperture of diameter 2mm;
Described contact chip (3) is very high sheet metal of conductivity or polymer flake, sticks to into respectively on shell inner casing (1) and the inner face that becomes shell shell (2) bottom surface;
Described insulated enclosure circle (4) sticks on the outside surface of shell inner casing (1) side, and the surface is a flank of thread, is complementary with becoming shell shell (2) side inner face flank of thread;
Described resistance test device (5) is the instrument that electronic multimeter or electrochemical workstation etc. can the test resistance values, and this device comprises two pointers, links to each other with two contact chips (3) respectively during test.
3. a method of testing that is used to test conductivity of solid powder material is characterized in that comprising the steps:
1) filling of pressed powder: institute is surveyed the pressed powder sample insert in the shell inner casing (1), compacting, the powder height is slightly larger than into shell inner casing (1) highly;
2) Zhuan Zhi sealing: will become shell shell (2) to be put in on the shell inner casing (1), and aim at screw thread and tighten, until insulated enclosure circle (4) edge contact to becoming shell shell (2) bottom surface;
3) measurement of resistance: two pointers of resistance test device (5) are inserted into shell shell (2) respectively and become in shell inner casing (1) the bottom center hole and with contact chip (3) well contact, regulate resistance test device (5), write down and analyze its measurement result;
4) calculate conductivity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910057989A CN101706529A (en) | 2009-10-09 | 2009-10-09 | Device and method for testing conductivity of solid powder material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910057989A CN101706529A (en) | 2009-10-09 | 2009-10-09 | Device and method for testing conductivity of solid powder material |
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| CN101706529A true CN101706529A (en) | 2010-05-12 |
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| CN200910057989A Pending CN101706529A (en) | 2009-10-09 | 2009-10-09 | Device and method for testing conductivity of solid powder material |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102854385A (en) * | 2012-07-24 | 2013-01-02 | 烟台德邦科技有限公司 | Testing device and testing method for resistivity of metal powder |
| CN103149439A (en) * | 2013-02-22 | 2013-06-12 | 北京科技大学 | Device and method for testing electric conductivity of powder material and impedance of membrane electrode |
| CN103424624A (en) * | 2013-03-16 | 2013-12-04 | 上海理工大学 | Carbon felt conductivity test method |
| CN103852642A (en) * | 2012-12-06 | 2014-06-11 | 天津工业大学 | Method for detecting electrical conductivity of small number of solids |
| CN108061822A (en) * | 2017-11-23 | 2018-05-22 | 浙江衡远新能源科技有限公司 | A kind of powder conductivity rate test equipment |
| CN108375707A (en) * | 2018-02-12 | 2018-08-07 | 黑龙江奥星能源科技有限公司 | A kind of detection device and its detection method of spherical graphite electric conductivity |
| CN109030573A (en) * | 2018-07-13 | 2018-12-18 | 福州大学 | A kind of conducting performance test method of sulphur Fe composition powder electrode |
| CN113655095A (en) * | 2021-08-27 | 2021-11-16 | 国网湖北省电力有限公司鄂州供电公司 | Conductive composite medium particle resistivity detection device and detection method |
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| CN2135157Y (en) * | 1992-08-07 | 1993-06-02 | 高瑞林 | Automatic powder resistivity measuring apparatus |
| CN101315343A (en) * | 2007-05-29 | 2008-12-03 | 上海比亚迪有限公司 | Apparatus and method for measuring volume resistivity of powder |
| CN101324538A (en) * | 2007-06-14 | 2008-12-17 | 深圳市比克电池有限公司 | Method for measuring powder body material electric conductivity and electric conductivity measuring apparatus suitable for the method |
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2009
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Patent Citations (5)
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| SU585457A1 (en) * | 1975-12-15 | 1977-12-25 | Предприятие П/Я В-2763 | Device for measuring specific resistance |
| GB2257532A (en) * | 1991-06-26 | 1993-01-13 | Era Patents Ltd | Conductivity measurement cell |
| CN2135157Y (en) * | 1992-08-07 | 1993-06-02 | 高瑞林 | Automatic powder resistivity measuring apparatus |
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| CN101324538A (en) * | 2007-06-14 | 2008-12-17 | 深圳市比克电池有限公司 | Method for measuring powder body material electric conductivity and electric conductivity measuring apparatus suitable for the method |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102854385A (en) * | 2012-07-24 | 2013-01-02 | 烟台德邦科技有限公司 | Testing device and testing method for resistivity of metal powder |
| CN103852642A (en) * | 2012-12-06 | 2014-06-11 | 天津工业大学 | Method for detecting electrical conductivity of small number of solids |
| CN103149439A (en) * | 2013-02-22 | 2013-06-12 | 北京科技大学 | Device and method for testing electric conductivity of powder material and impedance of membrane electrode |
| CN103149439B (en) * | 2013-02-22 | 2015-06-17 | 北京科技大学 | Device and method for testing electric conductivity of powder material and impedance of membrane electrode |
| CN103424624A (en) * | 2013-03-16 | 2013-12-04 | 上海理工大学 | Carbon felt conductivity test method |
| CN103424624B (en) * | 2013-03-16 | 2015-06-17 | 上海理工大学 | Carbon felt conductivity test method |
| CN108061822A (en) * | 2017-11-23 | 2018-05-22 | 浙江衡远新能源科技有限公司 | A kind of powder conductivity rate test equipment |
| CN108061822B (en) * | 2017-11-23 | 2020-06-02 | 浙江衡远新能源科技有限公司 | Powder conductivity test equipment |
| CN108375707A (en) * | 2018-02-12 | 2018-08-07 | 黑龙江奥星能源科技有限公司 | A kind of detection device and its detection method of spherical graphite electric conductivity |
| CN109030573A (en) * | 2018-07-13 | 2018-12-18 | 福州大学 | A kind of conducting performance test method of sulphur Fe composition powder electrode |
| CN113655095A (en) * | 2021-08-27 | 2021-11-16 | 国网湖北省电力有限公司鄂州供电公司 | Conductive composite medium particle resistivity detection device and detection method |
| CN113655095B (en) * | 2021-08-27 | 2023-12-08 | 国网湖北省电力有限公司鄂州供电公司 | Device and method for detecting resistivity of conductive composite medium particles |
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Owner name: SHANGHAI HUAMING HI-TECH (GROUP) CO., LTD. Free format text: FORMER OWNER: SHANGHAI WEINA SCIENCE + TECHNOLOGY CO. LTD. Effective date: 20101201 |
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Free format text: CORRECT: ADDRESS; FROM: 200237 ROOM 670-20, BUILDING 2, NO.351, GUOSHOUJING ROAD, ZHANGJIANG HIGH TECHNOLOGY PARK, PUDONG NEW DISTRICT, SHANGHAI TO: 200231 NO.18, LANE 1305, HUAJING ROAD, XUHUI DISTRICT, SHANGHAI |
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Effective date of registration: 20101201 Address after: 200231 No. 1305, Lane 18, Huajing Road, Xuhui District, Shanghai Applicant after: Huaming High Technology (Group) Co., Ltd., Shanghai Address before: 200237 Shanghai Guo Shou Jing Road, Zhangjiang High Tech Park of Pudong New Area No. 351 Building No. 2 room 670-20 Applicant before: Weina Tech Co., Ltd., Shanghai |
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Application publication date: 20100512 |