波谱学杂志Issue(4)：465-476,12.
超导磁体低温液位监测单元的设计与实现
Design and Implementation of a Low-Temperature Liquid Level Monitor Unit for Superconducting Magnets
摘要
Abstract
The design and implementation of a low-temperature liquid level monitor unit used in superconducting magnets is introduced. In the design, voltage-controlled current source circuit and voltage-frequency conversion circuit are used in liquid helium level measurement, and capacitance-frequency conversion circuit is used in liquid nitrogen level measurement. Digital circuit based on STM32 microcontroller is used to control the voltage-controlled current source, process the frequency signal, display the liquid-level data, send the liquid-level data to the upper computer and use CAN bus to complete the remote control of the unit. The feasibility of the design was demonstrated by experimental measurements.关键词
超导磁体/液氦/液氮/液位监测/微控制器/CAN总线Key words
superconducting magnet/liquid helium/liquid nitrogen/liquid-level monitoring/microcontroller/CAN bus分类
数理科学引用本文复制引用
陆建昌,朱天雄,陈俊飞,李正刚,刘朝阳..超导磁体低温液位监测单元的设计与实现[J].波谱学杂志,2014,(4):465-476,12.基金项目
国家重大科学仪器设备开发专项资助项目(2011YQ120035)． （2011YQ120035）
