| Popis: |
The report presents a set of electronics designed for investigation of fast thermal processes taking place in He I and He II. Its main features are as follows. First, temperature field is measured at several distanced points in short time. This is useful, for example, while dealing with second-sound shock waves, superfluid turbulence dynamics, etc. Second, minimal wiring is sufficient for multipoint temperature measurement what is principal, especially, in the case of forced flow cryostats. Third, the measurement procedure allows to achieve rather high precision with the use of rather low-sensitive Ge thermometers. Warm and cold tests have shown the system efficiency and reliability. |
