作者：赵麟, 朱斌, 田书林

作者单位：电子科技大学自动化工程学院, 四川成都 610054

关键词：示波器; 软件测试; 参数测量; 图形化显示; 指示器

摘要：

针对示波器在测量被测参数值后,一般只显示参数的数值而不会同时显示出该参数的其它物理特性这一问题。采用在参数测量的软件中定义指示器这一方法,使DSO在参数测量中不但能够显示所测电信号的测试值,而且也能够同时显示参数的具体物理意义。指示器基于Ｃ语言编程实现,利用硬件采集的波形数据点计算出参数测量的基本参数后,根据所测参数的物理定义确定测试点并存入指示器指针,最终显示出波形的参数测试值和代表参数物理意义的指示器直线。实验表明,DSO参数测量的界面能够实现图形化显示,方便测试人员快速查看所需数据。

Intuitionistic software design method for DSO parameter measurement

ZHAO Lin, ZHU Bin, TIAN Shu-lin

School of Automation, University of Electronic Science and Technology, Chengdu 610054, China

Abstract: At present, only numerical values are showed after their corresponding parameters have been measured for DSO, and their corresponding physical characteristics haven't shown.In order to solve this problem, the indicators were defined in the parameter measurement software design, which made not only the test values of electric signals could be showed, but also their specific physical means were assigned at the same time.The indicator was programmed with the C language.And the basic parameters could be calculated with the waveform data points acquired by the hardware, then determined the test points and deposited them into indicator pointers according to the physical content of the measured parameters.Finally the DSO would show the waveform parameter values and the indicator line which was on behalf of the physical content of measured parameters.Experimental results show that the interface of DSO parameter measurements is able to realize graphic display.Hence, it would facilitate the testing staff to check the needed data quickly.

Keywords: DSO; Software test; Parameter measurement; Graphic display; Indicator

2009, 35(1): 56-59  收稿日期: 2008-6-30;收到修改稿日期: 2008-9-21

基金项目: 

作者简介: 赵麟(1983-),女,硕士研究生,专业方向为测试技术及仪器。

参考文献

[1] 梅杓村,王 勇.现代电信仪表原理与应用[M].北京:人民邮电出版社,2002:101-105.
[2] TDS1000B和TDS2000B系列数字存储示波器用户手册 [S].2004:84-95.
[3] 陈光礻禹,王厚军,田书林,等.现代测试技术[M].成都:电子科技大学出版社,2002.
[4] 古天祥,王厚军,习友宝,等.电子测量原理[M].北京:机械工业出版社,2006.
[5] 叶 芃,王厚军,田书林.手持式数字示波表技术研究[J].仪器仪表学报,2002,23(5):144-147.
[6] 刘晓康.250MSPS示波表软件系统设计[D].硕士学位论文.成都:电子科技大学自动化工程学院,2007.
[7] 孟文东.500MSPS数字存储示波器软件的设计与实现[D].硕士学位论文.成都:电子科技大学自动化工程学院,2006.