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本文介绍的FH-73型β射线厚度计采用国产~(90)Sr和~(204)Tl放射源,探测元件为电离室,可对带状产品的厚度进行无损伤、不接触、连续测量。文中叙述了仪器的性能、原理和结构、给出了电子学线路图。
This article describes the FH-73 type β-ray thickness gauge using domestic ~ (90) Sr and ~ (204) Tl radioactive source, the detection element for the ionization chamber, the strip thickness of the product can be non-destructive, non-contact, continuous measurement. The article describes the performance of the instrument, principle and structure, given the circuit diagram of electronics.