Research - Equipment
Measurement of conducting material
Electrical, magnetic and thermal properties of conducting materials (metals, semi- and super- conductors, electro-ceramics) can be measured using a Physical Property Measurement System (PPMS - Quantum Design). The system is based on a liquid helium cryostat (300 K to 2 K) combined with a superconducting magnet (0 to 9 T) and allows samples of small size (typically < 1 cm) to be measured. Various home-made data acquisition set-ups have been developed for more specific tests. They include closed-cycle helium cryostats (300 K to 20 K) and various PC-controlled devices (nanovoltmeters, lock-in amplifiers, temperature controllers,…).
Measurement of insulating material
Insulating materials can be characterized using various devices including
- a High-Voltage Electrostatic Voltmeter Trek 341 (DC and AC, ± 20 kV),
- a Partial Discharge Measurement Set-up (ICM System),
- High Voltage generators, lock-in amplifiers, electrometers …
Several ovens are used for thermal ageing as well as high-temperature measurements (20°C to 200°C).
Measurement of Radon activity
Various measurement systems, including a PRO type Genitron Alphaguard monitor, are available. They allow dynamic measurements of the volumic activity of radon in air, water and soil to be carried out. In addition, a large experimental cell (7m³) has been realised and instrumented in order to perform a simultaneous intercomparison of several radon monitors.
Calibration and other measurements
Various set-ups and devices are available :
- an automatic Bruël & Kjaer 9610 accelerometer control set-up (5 Hz up to 10 kHz),
- two tachymeter control set-ups,
- various electrical measurement devices of high accuracy.