Four probe powder resistivity tester (economical type)
1、 Function Overview:Functional overview
Adopting integrated circuit modules;USB，232Communication interface, DC constant current source, providing four point probe measurement mode, usingPCSoftware operation, automatic testing process data curve and graph analysis, real-time analysis of pressure/The relationship between pressure and resistance, resistivity, conductivity changes, as well as report generation, storage, printing, etc;
2、 Reference standard:Meet Standard
1) Reference for four probe testerGB/T 1551、GB/T1552-1995，ASTM F84U.S.AA.S.T.MStandard.
2) Reference for powder testing platform of four probing needle methodGBT 30835-2014The four probe method for determining the powder conductivity in the "Carbon Composite Lithium Iron Phosphate Positive Electrode Material for Lithium ion Batteries" is required to be used as an arbitration method.
3、 Scope of application:Scope of application
Measurement of electrical resistivity of carbon composite lithium iron phosphate cathode material for lithium-ion batteries; It is also applied to the analysis and detection of conductors or semiconductor powder materials that require measurement using the four probe method; Used for measuring the resistivity of graphite powder materials; Applied to enterprise quality inspection; R&D department, colleges and universities; Research institutes; And quality inspection agencies.
Four probe powder resistivity tester (economical type)
4、 Parameter dataParameters
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Specification and model/ Specification model
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FT-7200A
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FT-7200B
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1.Block resistance rangesheet resistance
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range10-52～×
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105Ω/□10-42～×
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2.104Ω/□
Range of resistivity
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resistivityrange210-6～
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×106Ω-cm210-5～
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×105Ω-cm
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5Conductivity rangeConductivity range×10-6
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5～106ms/cm×10-5
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3.～
105ms/cm
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Test current rangetestcurrent range0.1μA，1μA，10μA，100µA，1mA，
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4.10mA，
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100 mA
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Current accuracy
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current
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6.±0.1%accuracy
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software interfaceResistance, resistivity, square resistance, temperature, unit switching, temperature coefficient, current, voltage, probe shape, probe spacing, thicknessConductivity, graph display, pressure setting, pressure, report export, waveform refresh, time setting, start, stop, run
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7.Testing methodTest method
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Four probe method+Automatic measurement modemouldmold:Standard configuration:a.pressure200kgand300kgModel mold inner diameter10mm；b.pressure500kg and1000kgModel mold inner diameter
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8. 20mm；Mold travel is high
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25mm；pressurechoose:a.200kg；
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9. b.300kg
；
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c.500kg；d.1000kgMold cavity stroke:
Diecavity stroke:0-20mm
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10. (Recommended sample compaction thickness)
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4mmInside)（Sample compaction thickness is recommended in 4mm
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11. ）Height range and accuracy
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Height measurement range:
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13. 0.01-10.01mmMeasurement resolution
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0.01mmConstant pressure time:time:0-99.9sStandard partschoose1a..
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14. Standard calibration resistor1-3
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One;b.Standard height calibration component
individualTesting partyTest mode
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15.a.Four point probe method
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Four - point probe methodb.
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16. automatic measurementAutomatic measurement
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Pressurizing methodPressurized
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17.automaticAutomatic
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Demoulding methodStripping
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19.automaticAutomatic
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Electrode materialElectrodeCopper needleCopper materialError:.errors
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20.≤4%
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Repetitive error3%within(Due to the influence of different material characteristics, errors may vary, except for human factors)
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21. Working power supply: Power supply
input
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: AC 220V±10% ,50Hz：60WStandard configuration outside1choose
Othersbuya.Computers and printers are configured according to customer requirements;
b.Measurement certificate
Share
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c.
Moisture meter
d.
True density meter
a.
computers and printers
d on customer configuration requirements.
b.
Measurement certificate 1. c. moisture meter d. true density meter
Comprehensive analysis solution for powder:
FT-3400 Powder Flow Behavior Analyzer (Static Mechanics, Shear Method)
FT-7100 Powder Flow Tester (Dynamic Mechanics, Drum Method or Rotary Cylinder Method)
FT-3900 Powder Yield Strength Analyzer (Uniaxial Compression Method)
