Title :
Investigation of DC precise voltage source for use as Zener transport standard
Author :
Karpov, O.V. ; Kutovoy, V.D. ; Gumenuk, V.S. ; Shulga, V.M. ; Shakizgyama, F.R. ; Sarandi, A.E.
Author_Institution :
NPO VNIIFTRI, Moscow, Russia
fDate :
4/1/1995 12:00:00 AM
Abstract :
Twenty precise compact DC voltages sources based on 6.4-V Zener diodes have been manufactured and investigated by the NPO VNIIFTRI measuring system during the year. Eight sources with voltage drift of less than 8 ppm/year and different drift signs as well as with noise levels lower than 100 nV in the 0.01-10 Hz frequency band have been selected. These sources were used for manufacturing two four-channel reference standards. One standard has been investigated by the Russian 1-V Josephson systems, and another one was examined at the NPO VNIIFTRI. The output voltage drift of the standard sources both under laboratory conditions and during transportation exhibits a linear time dependence. The spread of experimental points with respect to a linear extrapolation did not exceed 2·10-7. The drift value of the best channel was less 0.5 ppm/year
Keywords :
Zener diodes; measurement standards; power supply circuits; reference circuits; superconducting device testing; voltage measurement; 0.01 to 10 Hz; 6.4 V; DC precise voltage source; NPO VNIIFTRI measuring system; Russian 1-V Josephson systems; Zener diodes; Zener transport standard; drift signs; four-channel reference standards; laboratory conditions; linear extrapolation; linear time dependence; output voltage drift; standard sources; transportation; voltage drift; Artificial intelligence; Circuits; Diodes; Manufacturing; Noise level; Operational amplifiers; Resistors; Temperature sensors; Thermostats; Voltage;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
