CN2141899Y - Powder mass resistivity measurer - Google Patents
Powder mass resistivity measurer Download PDFInfo
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- CN2141899Y CN2141899Y CN 92222392 CN92222392U CN2141899Y CN 2141899 Y CN2141899 Y CN 2141899Y CN 92222392 CN92222392 CN 92222392 CN 92222392 U CN92222392 U CN 92222392U CN 2141899 Y CN2141899 Y CN 2141899Y
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Abstract
The utility model discloses a powder mass resistivity measurer, composed of a test sample pressurizing mechanism and a measuring and controlling box, wherein, the test sample pressurizing mechanism comprises a support frame 2, a pressurizing screw bolt 1 installed on the upper part of the support frame 2 and capable of downwards applying pressure, a pressure indicator 8 fixed on the lower part of the support frame, a pressure stabilizing spring 7 installed on the pressure indicator and a guiding cylinder 5 divided into an upper and a lower two parts and provided with a test sample mold for measuring electrodes inside; a dial gauge 3 is connected between the upper and the lower guiding cylinders; the measuring and controlling box is mainly composed of a power supply, a standard resistor for measuring current, a voltmeter and a current meter. The measurer with compact structure, convenient operation and high accuracy can measure the C-direction and the a-direction resistance values of the homogeneity materials with different current directions.
Description
The utility model belongs to the measurement mechanism than resistance, is specifically related to a kind of analyzer of measuring dusty material than resistance.
Powder is a physical quantity measuring the conductive powder characteristic than resistance, and it is the essential material performance index of measuring of carbon materials manufacturing plant.Existing powder specific resistance tester is the two ends that two 40 kilograms weight are hung in balanced lever, at an end of balanced lever the height that a micrometer tube is measured the height of lever and represented sample is installed, and measures the ratio resistance of powder then by circuit.This measurement mechanism structure benzene is heavy, and operation is inconvenience very, and the sample pressurized is inhomogeneous, and measuring result error is bigger.
The purpose of this utility model is to provide a kind of advantages of compact and light structure, easy to operate, pressurization steadily and measure powder specific resistance tester accurately.
Measurement mechanism of the present utility model is made of sample pressing mechanism and measurement control box two parts, said sample pressing mechanism comprises a support, one rack-mount the pressurization nut that can exert pressure downwards, support bottom fixed pressure indicator, be installed in pressure-stabilizing spring on the pressure indicator and one and can be divided into the guide cylinder of two parts built-in test electrode sample mold up and down, connecting a clock gauge up and down between the guide cylinder, said measurement control box mainly is made of power supply, the measuring resistance of measuring electric current and voltage, reometer.
Said electrode sample mold is mounted in the guide cylinder, sample mold comprise up and down two respectively with guide cylinder up and down with the fixing electrode of insulating trip, a reverse pressing spring is installed on the bottom electrode, electrode has one deck insulated liner and electrode outward for movingly, liner has one deck outer rigid housing outward, sample is contained on the bottom electrode, and the sample mold of this structure designs to resistance for test sample c.
Test sample a comprises that to the sample mold of resistance a upper punch and a pressing mold are connected with guide cylinder up and down, and a conductive electrode is respectively installed at the two ends of pressing mold, and medium position is installed two test electrodes, and sample is contained in the pressing mold.
Pressure indicator in the pressing mechanism can be hydraulicdriven tensimeter.
Pressure indicator in the pressing mechanism also can be a kind of by metal column and be attached to the pressure transducer that the foil gauge of post inside surface constitutes, and is shown by the pressure display screen of measuring on the control box through signal processing circuit from the signal of sensor output.
The utility model adopts the screw rod pressurization, exerts pressure steadily, and sample is contained in the sample mold that has guide cylinder, has guaranteed the depth of parallelism of sample pressurization, and compact conformation is easy to operate, the degree of accuracy height.
To elaborate to the utility model by accompanying drawing below.
Fig. 1 is a powder specific resistance tester structural representation of the present utility model.
Fig. 2 is circuit theory diagrams of measuring control box.
Fig. 3 is sample mold in the guide cylinder (surveying c to a resistance) structural representation.
Fig. 4 is sample mold (surveying a to a resistance) structural representation.
1 is the pressurization screw rod among the figure, the 2nd, and support, the 3rd, clock gauge, the 4th, fixing screw, the 5th, guide cylinder, the 6th, zeroing nut, the 7th, pressure-stabilizing spring, the 8th, pressure indicator, the 9th, leveling nut, the 10th, measure control box, the 11st, voltage table, the 12nd, reometer, the 13rd, power switch, the 14th, power supply, the 15th, variable resistor, the 16th, the insulating trip of last guide cylinder, the 17th, last guide cylinder, the 18th, top electrode, the 19th, sample, the 20th, following guide cylinder, the 21st, outer rigid housing, the 22nd, insulated liner, the 23rd, reverse pressing spring, the 24th, bottom electrode, the 25th, following guide cylinder insulating trip, the 26th, upper punch, the 27th, sample, the 28th, pressing mold, the 29th, conductive electrode, the 30th, test electrode.
Specific resistance tester among the figure is made of sample pressing mechanism and measurement control box two parts.The sample pressing mechanism has a frame support 2, and the middle part of support 2 is equipped with pressurization screw rod 1 from top to bottom successively, guide cylinder 5, and pressure-stabilizing spring 7 and be fixed on the pressure indicator 8 of frame bottom, what pressurization screw rod 1 can be artificial exerts pressure downwards to guide cylinder.Guide cylinder 5 can be divided into guide cylinder 17 and following guide cylinder 20 two parts, and a clock gauge 3 is installed between the guide cylinder up and down, within the guide cylinder 20, sample mold is installed in the guide cylinder under the last guide cylinder 17 movable insertions.Because institute's test specimens has isotropy and anisotropic difference, anisotropic material have c to a to branch, it is more widely different than resistance, so designed two kinds of different sample molds.Fig. 3 is that test c is to the sample mold than resistance, this sample mold has up and down two electrodes 18,24 and guide cylinder 17,20 up and down seal with insulating trip 16,25 respectively and fuse, electrode clads one deck insulated liner 22 and electrode outward movingly, liner has outer rigid housing 21 outward, sample 19 is placed on the bottom electrode 24, a reverse pressing spring 23 also is installed on the bottom electrode 24, and 1 pair of sample applied pressure of the bounce of this spring and pressurization screw rod is on the same axis.Fig. 4 is that test a is to the sample mold than resistance.Upper punch 26 can be pressed in the pressing mold 28, and a conductive electrode 29 is respectively installed at the two ends of pressing mold 28, and two test electrodes 30 are installed at the middle part, and sample 27 is contained in the pressing mold 28, and upper punch 26 and pressing mold 28 can be fixed with screw and guide cylinder up and down.Test anisotropic material not in the same way ratio resistance only need be changed sample mold and can realize.
Measurement than resistance is carried out according to Ohm law.Test condition is: powder grade 0.3-0.5 millimeter, 40 kg/cm of exerting pressure, electric current 300-500 milliampere.To measure C to being example than resistance, before measuring powdered sample, earlier place sample mold with standard sample (steel columns that diameter is 16 * 16 millimeters), with zeroing nut 6 with the pointer of clock gauge 3 be adjusted to large needle at the little pin of zero-bit in 2 position, at this moment by 1 pressurization of pressurization screw rod, making the pressure of pressure indicator 8 indications is 80 kg/cm.Take out standard sample then, the powdered sample of need test is put into sample mold, 1 pair of sample pressurization of rotating screw bolt, also sample is oppositely pressurizeed in this simultaneously reverse pressing spring 23, at this moment the indication of clock gauge is the height of powdered sample, will regulate variable resistor, the size of Control current behind the power connection of measuring on the control box, the value that can show electric current and voltage is respectively utilized the voltage drop at formula ρ (than resistance)=V(sample two ends at last).The sectional area of S(sample)/electric current of I(by sample).The height of h(sample) can calculate the ratio resistance of sample.
With above-mentioned analyzer reality petroleum coke after calcining and stone coal are done than resistance measurement, error at measurment then is 2.5% all less than 1% with the lever weighting error in measure.
Claims (5)
1, a kind of powder specific resistance tester, constitute by sample pressing mechanism and measurement control box two parts, it is characterized in that said sample pressing mechanism comprises a support 2, one is installed in the pressurization bolt 1 that can exert pressure in support 2 tops downwards, support bottom fixed pressure indicator 8, be installed in pressure-stabilizing spring 7 on the pressure indicator and one and can be divided into the guide cylinder 5 of two parts built-in test electrode sample mold up and down, connecting a clock gauge 3 up and down between the guide cylinder.
2, as the said analyzer of claim 1, it is characterized in that said electrode sample mold is mounted in the guide cylinder 5, test sample C comprises up and down two electrodes of fixing with guide cylinder 17,20 usefulness insulating trips 16,25 up and down respectively 18 and 24 to the sample mold than resistance, a reverse pressing spring 23 is installed on the bottom electrode 24, electrode has one deck insulated liner 22 and electrode outward for movingly, liner has one deck outer rigid housing 21 outward, and sample 19 is contained on the bottom electrode.
3, as the said analyzer of claim 1, it is characterized in that test sample a comprises that to the sample mold than resistance a upper punch 26 and a pressing mold 28 are connected with guide cylinder 17,20 up and down, a conductive electrode 29 is respectively installed at the two ends of pressing mold 28, medium position is installed two test electrodes 30, and sample 27 is contained in the pressing mold.
4,, it is characterized in that pressure indicator in the said pressing mechanism can be a kind of by metal column and be attached to the pressure transducer that the foil gauge of post inside surface constitutes as the said analyzer of claim 1-3.
5,, it is characterized in that the pressure indicator in the said pressing mechanism can be hydraulicdriven tensimeter as the said analyzer of claim 1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92222392 CN2141899Y (en) | 1992-05-16 | 1992-05-16 | Powder mass resistivity measurer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92222392 CN2141899Y (en) | 1992-05-16 | 1992-05-16 | Powder mass resistivity measurer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2141899Y true CN2141899Y (en) | 1993-09-08 |
Family
ID=33768824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92222392 Expired - Fee Related CN2141899Y (en) | 1992-05-16 | 1992-05-16 | Powder mass resistivity measurer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2141899Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102778607A (en) * | 2011-05-07 | 2012-11-14 | 徐州金亚粉体有限责任公司 | Conducting mica powder density resistance measuring equipment and conducting mica powder density resistance measuring method |
| CN101315343B (en) * | 2007-05-29 | 2012-12-12 | 上海比亚迪有限公司 | Apparatus and method for measuring volume resistivity of powder |
| 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 |
| WO2013057574A1 (en) | 2011-10-21 | 2013-04-25 | Uniwersytet Warszawski | Cell and method for electrical measurements of highly reactive powder and liquid samples |
| CN101324538B (en) * | 2007-06-14 | 2013-06-12 | 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 |
| CN103852642A (en) * | 2012-12-06 | 2014-06-11 | 天津工业大学 | Method for detecting electrical conductivity of small number of solids |
| CN105277788A (en) * | 2015-10-23 | 2016-01-27 | 北京神雾环境能源科技集团股份有限公司 | Massive material structure ratio resistance measurement device and method |
| CN106324350A (en) * | 2016-08-31 | 2017-01-11 | 广东技术师范学院 | Device for measuring resistance of powder material |
| JP7411501B2 (en) | 2020-05-13 | 2024-01-11 | 日東精工アナリテック株式会社 | Powder resistivity measuring device and resistivity measuring method |
-
1992
- 1992-05-16 CN CN 92222392 patent/CN2141899Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101315343B (en) * | 2007-05-29 | 2012-12-12 | 上海比亚迪有限公司 | Apparatus and method for measuring volume resistivity of powder |
| CN101324538B (en) * | 2007-06-14 | 2013-06-12 | 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 |
| CN102778607A (en) * | 2011-05-07 | 2012-11-14 | 徐州金亚粉体有限责任公司 | Conducting mica powder density resistance measuring equipment and conducting mica powder density resistance measuring method |
| WO2013057574A1 (en) | 2011-10-21 | 2013-04-25 | Uniwersytet Warszawski | Cell and method for electrical measurements of highly reactive powder and liquid samples |
| JP2014531028A (en) * | 2011-10-21 | 2014-11-20 | ウニヴェルシテット・ヴァルシャフスキーＵｎｉｗｅｒｓｙｔｅｔ Ｗａｒｓｚａｗｓｋｉ | Cell and method for electrical measurement of highly reactive powder and liquid samples |
| US9651595B2 (en) | 2011-10-21 | 2017-05-16 | Uniwersytet Warszawski | Cell and method for electrical measurements of highly reactive powder and liquid samples |
| 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 |
| CN105277788A (en) * | 2015-10-23 | 2016-01-27 | 北京神雾环境能源科技集团股份有限公司 | Massive material structure ratio resistance measurement device and method |
| CN106324350A (en) * | 2016-08-31 | 2017-01-11 | 广东技术师范学院 | Device for measuring resistance of powder material |
| JP7411501B2 (en) | 2020-05-13 | 2024-01-11 | 日東精工アナリテック株式会社 | Powder resistivity measuring device and resistivity measuring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |