The precision temperature-measuring and interlock system on the VEPP-4 accelerator facility

Аннотация

The digital system of temperature measurements and protective interlocks that operate at the VEPP-4 accelerator facility is described. The temperature is measured with an absolute accuracy of ±0.5°C within the range from 0 to 70°C and resolution of 0.06°С, measurements are possible in the range of–25 to +125°C, the minimum polling interval of the temperature sensors is 1 s. The hardware makes it possible to create low-cost and reliable easily extendable distributed systems for precise temperature monitoring for large technological or electrophysical facilities. This is the most efficient method when the quantity of temperature sensors reaches several hundreds and the distance between them is several hundred meters.