1. System description

For copper alloy and other materials such as Ni-Cr alloy, temperature coefficient resistance is very sensitive to the temperature.  the resistivity is very sensitive to the atom diffusion during tempering. Through the resistance temperature dependent characters, the system can accurately capture a series of continuous transformation  such as atoms moving from interstitial position to dislocation, interface enrichment and nucleation, and precipitation from the matrix. These explain the diffusion kinetics from the perspective of carbon atom diffusion activation energy. TCR is very important to accuracy temperature control material (Ni-Cr alloy) .

2. Parameters

        1) Temperature controller:30 heating modes; Room temperature~400℃,  accuracy: ±0.2℃.

        2) Vacuum degree: 6*10^-2Pa.

        3) Data acquisition range : 1×10^-7～1×10^1 Ω and accuracy: 0.1uΩ.

        4) Standard samples: 1mΩ、10mΩ、100mΩ, uncertainty: 0.05%, temperature cofficient of resistance: 3ppm.

3. Software function: save and manage the data with ACCESS.

Tel:(086)13338002060 (Engineer Zhang); QQ:2429337838;Email:jinfeng.zhang@sipcc.com.cn