DIGITAL REACTIMETER Russian patent published in 2019 - IPC G21C17/04 G01T3/08 

FIELD: measuring equipment.

SUBSTANCE: invention relates to reactor measurements, particularly to devices for measuring reactivity of a nuclear reactor. Reactometer includes channel of reactivity measurement according to signals of neutron flux density sensor, at that measurement channel includes counting channel made of serially connected spectrometric amplifier, discriminator, count-code converter, and a current channel which includes a signal amplifier and a signal-to-code converter. At the same time converters of counting and current channels are connected to common main line, to which processing, control and indication device is also connected. Counting and current channels are connected to neutron flux density sensors operating independently of each other, counting ones are connected to neutron counters, and current channels are connected to a current division chamber.

EFFECT: high accuracy of measuring reactivity of a nuclear reactor by reducing measurement error, faster operation and noise immunity, and also expansion of dynamic range of change of reactor power (or neutron flux density), on which reactivity is measured, and expansion of reactivity meter functionality.

4 cl, 1 dwg