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Plotnikova, O.

Paper	Title	Page
MODP15	The Precision Temperature Measuring System Of The VEPP-4m Electron-Positron Collider V.Kaplin, S.Karnaev, A. Kvashnin, I.Morozov, O.Plotnikova Budker Institute of Nuclear Physics, Novosibirsk, Russia The temperature of the magnets is an important factor of the average energy stability of the circulating bunches. The work describes the VEPP-4M temperature measurement system based on 32 channel temperature controllers using High-Precision Digital Thermometers DS1621 and DS1631 with the resolution 0.02 and 0.06 degrees centigrade respectively. Temperature values are renewed for the all of 32 channels of each controller every second automatically. The controllers are connected to PC via serial interface RS232/RS485. The program running in PC inquires all controllers and writes data to database in terms of PostgreSQL at every minute. The graphic interface provides browsing of the temperature diagrams of the selected sensors over any period of time. The programs run under Linux and use Motif library.	235

Paper

Title

Page

The Precision Temperature Measuring System Of The VEPP-4m Electron-Positron Collider

V.Kaplin, S.Karnaev, A. Kvashnin, I.Morozov, O.Plotnikova
Budker Institute of Nuclear Physics, Novosibirsk, Russia

The temperature of the magnets is an important factor of the average energy stability of the circulating bunches. The work describes the VEPP-4M temperature measurement system based on 32 channel temperature controllers using High-Precision Digital Thermometers DS1621 and DS1631 with the resolution 0.02 and 0.06 degrees centigrade respectively. Temperature values are renewed for the all of 32 channels of each controller every second automatically. The controllers are connected to PC via serial interface RS232/RS485. The program running in PC inquires all controllers and writes data to database in terms of PostgreSQL at every minute. The graphic interface provides browsing of the temperature diagrams of the selected sensors over any period of time. The programs run under Linux and use Motif library.

235