基于虚拟仪器技术的工频X线机单元电路实验系统的设计
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摘要
为了提高工频X线机电路实验教学的开放性和解决实验设备费用高、易损坏、更新慢等问题,研究并开发一套教学使用的工频X线机单元电路实验仿真系统,可以完成工频X线机电路实验课程的基本教学任务。结合工频X线机电路实验教学课程的需求,以工频X线机典型的单元电路为例,采用电路仿真软件Multisim仿真实验电路,虚拟仪器开发软件LabVIEW进行实验系统界面设计,并利用接口技术实现二者之间的通信联结,完成工频X线机单元电路实验系统的构建。设计完成后的实验系统能够仿真实际X线机单元电路的工作过程,学生可以在理论学习的基础上,利用此套系统进行X线机整流电路、限时电路、空间电荷补偿电路、容量保护电路、旋转阳极启动、延时及保护电路的实验。测试结果表明,该实验系统可以完成工频X线机单元电路实验课程中的电路参数测量、电路信号测试及参数显示任务,通过与真实单元电路实验箱的对比,证明了实验结果可以反映出真实的X线机球管电气特性。该实验系统有效地增加了学生的动手实践机会,可扩展性强,有利于探究性电路实验的进行,因此,将虚拟仪器技术用于设计和实现工频X线机单元电路实验系统是一种非常有效的方式,既解决了实验设备不足的问题,也为其他医学影像设备电路实验仪器的设计和研制提供新的思路。
In order to improve the openness of the experimental teaching of power frequency X-ray machine circuit, and to solve the problems of high cost, easy damage and slow update of experimental equipment, research and development of a set of power frequency X-ray machine elemental circuit experiment simulation system for teaching, it can be completed the basic teaching tasks of the power frequency X-ray machine circuit experiment course. Combined with the requirements of the experimental teaching course of the power frequency X-ray machine circuit, taking the typical elemental circuit of the power frequency X-ray machine as an example, the circuit simulation software Multisim simulation experiment circuit, the virtual instrument development software LabVIEW is used to design the experimental system interface, and the interface technology is utilized. The communication connection between the two is realized, and the construction of the experimental system of the power frequency X-ray machine elemental circuit is completed. After the design is completed, the experimental system can simulate the working process of the actual X-ray machine elemental circuit. Students can use this system to carry out X-ray machine rectifier circuit, time-limited circuit, space charge compensation circuit and capacity protection circuit on the basis of theoretical study. Experiments with rotating anode start-up, delay, and protection circuits. The test results show that the experimental system can complete the circuit parameter measurement, circuit signal test and parameter display task in the power frequency X-ray machine unit circuit experiment course. By comparing with the real elemental circuit experiment box, it is proved that the experimental results can reflect the actual X-ray machine tube electrical characteristics. The experimental system effectively increases the hands-on practice opportunities of students, and is highly scalable, which is conducive to the exploratory circuit experiment. Therefore, the virtual instrument technology is used to design and implement the power frequency X-ray machine elemental circuit experiment system. A very effective way not only solves the problem of insufficient experimental equipment, but also provides a new idea for the design and development of other medical imaging equipment circuit experimental instruments.
In order to improve the openness of the experimental teaching of power frequency X-ray machine circuit, and to solve the problems of high cost, easy damage and slow update of experimental equipment, research and development of a set of power frequency X-ray machine elemental circuit experiment simulation system for teaching, it can be completed the basic teaching tasks of the power frequency X-ray machine circuit experiment course. Combined with the requirements of the experimental teaching course of the power frequency X-ray machine circuit, taking the typical elemental circuit of the power frequency X-ray machine as an example, the circuit simulation software Multisim simulation experiment circuit, the virtual instrument development software LabVIEW is used to design the experimental system interface, and the interface technology is utilized. The communication connection between the two is realized, and the construction of the experimental system of the power frequency X-ray machine elemental circuit is completed. After the design is completed, the experimental system can simulate the working process of the actual X-ray machine elemental circuit. Students can use this system to carry out X-ray machine rectifier circuit, time-limited circuit, space charge compensation circuit and capacity protection circuit on the basis of theoretical study. Experiments with rotating anode start-up, delay, and protection circuits. The test results show that the experimental system can complete the circuit parameter measurement, circuit signal test and parameter display task in the power frequency X-ray machine unit circuit experiment course. By comparing with the real elemental circuit experiment box, it is proved that the experimental results can reflect the actual X-ray machine tube electrical characteristics. The experimental system effectively increases the hands-on practice opportunities of students, and is highly scalable, which is conducive to the exploratory circuit experiment. Therefore, the virtual instrument technology is used to design and implement the power frequency X-ray machine elemental circuit experiment system. A very effective way not only solves the problem of insufficient experimental equipment, but also provides a new idea for the design and development of other medical imaging equipment circuit experimental instruments.
引文
[1] 范能胜,张怀岺.仿真工频X线机的研制[J].中国医学物理学杂志,2016,33(5):496-500.
[2] 李光仲,刘俊英,闫鹏,等.虚拟仿真技术在医学电子学多媒体辅助教学中的应用研究[J].中国医学教育技术,2009,23(3):290-292.
[3] 齐现英,鲁雯,韩丰谈,等.虚拟仿真教学在《医学影像设备学》教学中的研究与应用[J].中国医学物理学杂志,2012,29(1):3208-3210.
[4] 陈建方,曹明娜,汪百真,等.《医学影像设备学》仿真实验教学研究[J].中国医学教育技术,2008,22(1):40-41.
[5] 刘慧琴,董凯,杨斌,等.基于VB的X线机控制台虚拟操作系统的设计与实现[J].中国医疗器械杂志,2008,32(5):345-347,362.
[6] 杨立娜,崔文华,王顺俞.基于Multisim和LabVIEW的模拟电路虚拟实验平台的设计[J].中国教育信息化,2014(2):66-69.
[7] 段晓杰,苗长云.LabVIEW在电子线路课程教学中的应用[J].国外电子测量技术,2008,27(8):66-68.
[8] 刘伟玲,杨彩双,杨泽青,等.基于LabVIEW与Multisim的电路实验平台设计[J].自动化与仪表,2016,31(11):70-73.
[9] 曹秀爽,刘鹏.基于LabVIEW的模拟电子技术课程远程实验平台的设计[J].科技信息,2014(5):36-37.
[10] 王丽,桂彩云.基于LabVIEW的实验数据处理方法研究[J].国外电子测量技术,2018,37(4):20-25.
[11] WANG Y,WANG L,LIU X,et al.Application of co-simulation technology based on LabVIEW and multisim in electronic design[J].Journal of Residuals Science&Technology,2016,13(5):197.
[12] 李雯.基于LabVIEW的电子电路模拟及仿真设计[J].自动化与仪器仪表,2016(10):22-23.
[13] 付扬.Multisim仿真在电工电子实验中的应用[J].实验室研究与探索,2011,30(4):120-122,126.
[14] 吴凌燕.基于Mulitisim11的串联谐振电路特性研究[J].国外电子测量技术,2011,30(8):84-86.
[15] 张力.基于Multisim软件的波形发生器设计[J].电子测量技术,2008,31(7):171-173,187.
[16] 吴凌燕.基于Multisim10的正弦波振荡电路仿真[J].国外电子测量技术,2011,30(7):75-76,80.
[17] RAHMAN M Z.Teaching an electrical circuits course using a virtual lab[J].Journal of College Teaching & Learning,2014,11(4):163-168.
[18] 陈海生,王峰,郭晓云,等.一种LabVIEW和Multisim联合仿真的方法[J].电气电子教学学报,2014,36(2):118-120.
[19] 张坤,秦翠亚,乔宇.基于LabVIEW和Multisim的模拟电路实验虚拟仿真平台的设计[J].河北软件职业技术学院学报,2016,18(1):55-58.
[20] 韩丰谈,李彪,李林枫,等.医学影像设备学[M].北京:人民卫生出版社,2016.
[2] 李光仲,刘俊英,闫鹏,等.虚拟仿真技术在医学电子学多媒体辅助教学中的应用研究[J].中国医学教育技术,2009,23(3):290-292.
[3] 齐现英,鲁雯,韩丰谈,等.虚拟仿真教学在《医学影像设备学》教学中的研究与应用[J].中国医学物理学杂志,2012,29(1):3208-3210.
[4] 陈建方,曹明娜,汪百真,等.《医学影像设备学》仿真实验教学研究[J].中国医学教育技术,2008,22(1):40-41.
[5] 刘慧琴,董凯,杨斌,等.基于VB的X线机控制台虚拟操作系统的设计与实现[J].中国医疗器械杂志,2008,32(5):345-347,362.
[6] 杨立娜,崔文华,王顺俞.基于Multisim和LabVIEW的模拟电路虚拟实验平台的设计[J].中国教育信息化,2014(2):66-69.
[7] 段晓杰,苗长云.LabVIEW在电子线路课程教学中的应用[J].国外电子测量技术,2008,27(8):66-68.
[8] 刘伟玲,杨彩双,杨泽青,等.基于LabVIEW与Multisim的电路实验平台设计[J].自动化与仪表,2016,31(11):70-73.
[9] 曹秀爽,刘鹏.基于LabVIEW的模拟电子技术课程远程实验平台的设计[J].科技信息,2014(5):36-37.
[10] 王丽,桂彩云.基于LabVIEW的实验数据处理方法研究[J].国外电子测量技术,2018,37(4):20-25.
[11] WANG Y,WANG L,LIU X,et al.Application of co-simulation technology based on LabVIEW and multisim in electronic design[J].Journal of Residuals Science&Technology,2016,13(5):197.
[12] 李雯.基于LabVIEW的电子电路模拟及仿真设计[J].自动化与仪器仪表,2016(10):22-23.
[13] 付扬.Multisim仿真在电工电子实验中的应用[J].实验室研究与探索,2011,30(4):120-122,126.
[14] 吴凌燕.基于Mulitisim11的串联谐振电路特性研究[J].国外电子测量技术,2011,30(8):84-86.
[15] 张力.基于Multisim软件的波形发生器设计[J].电子测量技术,2008,31(7):171-173,187.
[16] 吴凌燕.基于Multisim10的正弦波振荡电路仿真[J].国外电子测量技术,2011,30(7):75-76,80.
[17] RAHMAN M Z.Teaching an electrical circuits course using a virtual lab[J].Journal of College Teaching & Learning,2014,11(4):163-168.
[18] 陈海生,王峰,郭晓云,等.一种LabVIEW和Multisim联合仿真的方法[J].电气电子教学学报,2014,36(2):118-120.
[19] 张坤,秦翠亚,乔宇.基于LabVIEW和Multisim的模拟电路实验虚拟仿真平台的设计[J].河北软件职业技术学院学报,2016,18(1):55-58.
[20] 韩丰谈,李彪,李林枫,等.医学影像设备学[M].北京:人民卫生出版社,2016.