A split-type radiation-resistant microwave level gauge based on time-domain extension technology
TANG Fengna
HE Chunnan
Abstract：In response to the challenges of limited and imprecise measurement methods for radioactive liquid level and interface in nuclear fuel reprocessing,this paper presents the development of a split-type,radiation-resistant microwave level gauge based on time-domain extension technology.Through the innovative design of a triple-rod sensor,a split-type radiation-resistant structure,and a dual-echo recognition algorithm,high-precision simultaneous measurement of liquid level and interface has been achieved.Test results indicate that the instrument's measurement error is better than±5 mm,with key components enduring a cumulative radiation dose of up to 105 Gy,providing a reliable new measurement solution for extreme radioactive conditions.
Keywords：time-domain extension technologyradiation-resistantdual-echoquick-disconnectecho recogni-tion
Publication Date：2025-11-20
Online Publishing Date：2026-01-06(First online date of this platform, not the publication date of the document)
Pages：6( 83-88 )