智能化医疗设备的零点自动校正及应用

Zero-line Automatic Calibration and Application for the Intelligent Medical Instrument

现代医疗设备智能化程度越来越高,其设计中大量应用了自动校正电路。智能化医疗设备控制复杂,从电路分析的角度看,可以将其工作模式简化成为四端(或双端)网络。CT、MRI、DR、PET/CT等容易发生一些"软"故障,这类疑难故障往往和零点自动校正相关。在实际应用中,抓住这个要点进行检测维修会取得事半功倍的效果。

The intelligent level of the modern medical equipments is higher than before and the automatic calibration circuits are largely used. The control circuit of the intelligent equipments is quite complicated and its working modes have been simplified to four-terminal or double terminal nets. The intelligent medical equipments such as CT, MRI, DR, PET/ CT have more chances to have some ＂soft＂ errors that are usually related to the zero-line calibration. In actual use, it can be noticed and performed, and the detecting and servicing for the medical equipments can be much easier than before.