Introduction: The JH-I-12 low-temperature specific heat test system is based on the most basic method of specific heat definition: steady-state adiabatic pulse method. This system is composed of thermostat, temperature controller, high-precision thermometer, CVM-200 electrical transport property tester, intelligent time relay, etc. During the experiment, the lower part of the vacuum jacket of the thermostat was immersed in liquid nitrogen. If you use liquid nitrogen to do the experiment below -190℃, you need to plug the 8 mm hole on the Dewar upper cover with a solid plug, and then use a mechanical vacuum pump to center the Dewar from the air outlet on the Dewar cover The liquid nitrogen is decompressed to obtain a sample temperature below -190°C. JH-I-12 Low Temperature Specific Heat Test System This thermostat adopts high vacuum insulation, a combination of adjustable solid heat leakage and electric heating to achieve variable temperature control. This measurement system is a multifunctional measurement system. A small number of core components can be easily replaced for thermal conductivity measurement, and even variable temperature electromagnetic measurement (need to purchase an electromagnetic measurement constant temperature block and AC susceptibility coil) experiment, to achieve multiple functions in one machine. The method of controlling the cooling capacity of the thermostat is the adjustable solid thermal contact, and the heating heat comes from the heat transferred from the room temperature along the rod and the electric heating provided by the temperature controller. technical parameter: 1: Temperature range: 90K～300K, 65K～100K; Temperature control accuracy: ±0.3K/30 minutes 2: The minimum resolution of temperature measurement: 0.01K; 3: Heating method: timing constant current;
Introduction: The JH-I-12 low-temperature specific heat test system is based on the most basic method of specific heat definition: steady-state adiabatic pulse method. This system is composed of thermostat, temperature controller, high-precision thermometer, CVM-200 electrical transport property tester, intelligent time relay, etc. During the experiment, the lower part of the vacuum jacket of the thermostat was immersed in liquid nitrogen. If you use liquid nitrogen to do the experiment below -190℃, you need to plug the 8 mm hole on the Dewar upper cover with a solid plug, and then use a mechanical vacuum pump to center the Dewar from the air outlet on the Dewar cover The liquid nitrogen is decompressed to obtain a sample temperature below -190°C. JH-I-12 Low Temperature Specific Heat Test System This thermostat adopts high vacuum insulation, a combination of adjustable solid heat leakage and electric heating to achieve variable temperature control. This measurement system is a multifunctional measurement system. A small number of core components can be easily replaced for thermal conductivity measurement, and even variable temperature electromagnetic measurement (need to purchase an electromagnetic measurement constant temperature block and AC susceptibility coil) experiment, to achieve multiple functions in one machine. The method of controlling the cooling capacity of the thermostat is the adjustable solid thermal contact, and the heating heat comes from the heat transferred from the room temperature along the rod and the electric heating provided by the temperature controller.
