【摘要】 目的:解决在医学影像技术专业和医学影像学专业实验教学中X线机实验设备成本高、有辐射和电路封装等缺点。方法:以X线机基本电路为基础,优化电路结构、采用直观功能模块电路设计,并以电源变压器为管电压测量电路和管电流测量电路提供直流电;使用89C2051单片机,用于曝光时间设定、曝光时间控制、显示电路控制驱动等多种功能。结果:本装置优势为不产生高压和X射线,可以模拟医用X线机的工作原理和主要电路结构,可用于开设X线机实验课,供学生学习和掌握X线机的工作原理及电路结构,测量X线机的主要工作特性和参数,观察和测量电路波形。结论:该设备可以解决实验教学设备不足,可广泛用于医学院校医学影像学、医学影像技术等相关专业的实验教学。更多还原

【Abstract】 Objective To solve the problems of high cost, radiation and circuit packaging of X-ray machine in the experimental teaching of medical imaging and medical imaging technology. Methods Based on the basic circuit of X-ray machine, the circuit structure was optimized, and the circuit design of intuitive function module was adopted. The direct currents of tube voltage measurement circuit and tube current measurement circuit were provided by power transformer. Moreover, 89 C2051 single chip was used for realizing exposure time setting, exposure time control, display circuit control drive and other functions. Results The proposed device which did not produce high voltage and X-ray could be used to simulate the working principle and main circuit structure of medical X-ray machine, and used in the experimental teaching of X-ray machine, so that students can not only learn and master the working principle and circuit structure of X-ray machine, but also measure the main working characteristics and parameters of X-ray machine, and observe and measure circuit waveforms. Conclusion The proposed device can solve the shortages of experimental teaching equipments, and can be widely used in the experimental teaching of medical imaging, medical imaging technology and other related majors in medical colleges.更多还原