论文部分内容阅读
医用电子仪器在临床诊断、治疗和基础医学研究中起着十分重要的作用。但是,如果我们不注意仪器安全性检查,微安级的电流就可能引起各种电击事故。本仪器是根据卫生部颁布的(医用电气设备通用安全要求)的有关规定,为检测各类医用电子仪器的漏电流而研制的。一般数字显示仪表和磁电系仪表显示性能好,读数准确,但交、直流不能通用,必须分档测量,且测量频率范围不包括低频段。本仪器在数字显示电路前采用了交直流幅值均衡电路。被测信号通过该电路后,交流和直流得到不同的幅值。当测量交流电流
Medical electronic devices play an important role in clinical diagnosis, treatment and basic medical research. However, if we do not pay attention to the instrument safety inspection, micro-amperes current may cause various electric shock accidents. The instrument is based on the Ministry of Health promulgated the (General requirements for medical electrical equipment safety) of the relevant provisions for the detection of various types of medical electronic equipment leakage current and developed. General digital display instrument and magnetoelectric instrument display performance is good, accurate readings, but AC and DC can not be universal, you must sub-file measurement, and the measurement frequency range does not include the low frequency band. The instrument in the digital display circuit before using AC-DC amplitude equalization circuit. The measured signal through the circuit, AC and DC get a different amplitude. When measuring AC current