INTERCHANNEL INSTABILITY DIAGNOSIS DEVICE IN A REACTOR WITH DETECTION AND REGISTRATION OF HIDDEN DEFECTS

摘要

1. A device for diagnosing interchannel instability with the detection and registration of hidden defects, including a neutron detector, a frequency discrimination bandpass filter, a power calculation unit, a power signal spectrum calculation unit, a filtering band shift calculation unit, a systematic noise signal discrimination level determination unit, an amplitude discrimination filter, channel for determining the level of discrimination of the variable noise signal, the reactor control system and the comparison unit, and the output of the channel for determining the level of discrimination of the variable noise signal is connected to the control input of the amplitude discrimination filter, characterized in that it additionally introduces contact and non-contact sensors of failures in the channel for determining the level of discrimination variable noise signal, as well as those installed on the communication line of this channel with an amplitude discrimination filter or in close proximity (up to 1 ÷ 2 cm) from it, detecting as sources failures: connectors (connectors), interface buses, control buses, grounding and power supply, internal and external electromagnetic interference with the addition of algorithms for processing signals from these sensors. ! 2. The system according to claim 1, characterized in that the contact fault sensors are implemented on CMOS inverters. ! 3. The system according to claim 1, characterized in that the contactless fault sensors are implemented on passive (L, C-elements) microresonant circuits. ! 4. The system according to claim 1, characterized in that when two or more contact failure sensors are triggered, an element or node with an earlier time is determined as a source of failures.