GCGEST-1600 Graphite Carbon Block Thermal Resistance Tester Introduction: GCGEST graphite carbon block thermal resistivity tester, the core technical indicators of this instrument are customized according to standard requirements, with automatic heating, automatic electrode lifting and lowering, automatic real-time recording of resistance values at different temperatures, and the ability to draw test curves and export data and save electronic reports. It has the characteristics of high measurement accuracy, easy operation, and high degree of intelligence. Testing principle: This method uses the four probe method to test electrical resistivity. At a certain temperature environment, four probes are used to contact the surface of the sample, and a constant current source is used to provide an appropriate current to the two outer probes. The voltage of the two probes in the middle of the sample is measured, and the thermal resistivity is obtained according to Ohm's law. The composition of this instrument mainly consists of the following parts: Equipment usage: After reaching the set temperature at the set heating rate, this instrument tests the electrical resistivity of the sample under high temperature vacuum or atmosphere conditions Technical parameters: Temperature range: Room temperature -1650 ° C Heating rate: 15 ° C/min ± 5 ° C adjustable Temperature control accuracy: ± 2 ° C Sample chamber: capable of vacuum pumping and atmospheric communication Sample size: diameter 10mm, length 80mm Sample quantity: 1 set/2 sets/3 sets/4 sets (optional) Test electrode: can automatically lift and lower inside the furnace chamber Test current: 10 μ A, 100μA, 1mA, 10mA, 100mA, 500 mA ,1A, 5A,10A. Resistance measurement accuracy: ± 0.5%
Introduction: GCGEST graphite carbon block thermal resistivity tester, the core technical indicators of this instrument are customized according to standard requirements, with automatic heating, automatic electrode lifting and lowering, automatic real-time recording of resistance values at different temperatures, and the ability to draw test curves and export data and save electronic reports. It has the characteristics of high measurement accuracy, easy operation, and high degree of intelligence.