介绍了几种可用于医用报警系统中视觉报警信号的测试方法，以进行YY 0709-2009的符合性验证，包括直接测量报警信号灯的供电脉冲、拍摄视频动画后进行图像分析和用光电传感器测量等，对几种方法的优劣进行了比较。重点提出了一种以硅光电池作为传感器、并在前端增加滤光片、在输出端增加放大电路、用示波器接收信号的方法，解决了液晶模拟闪烁信号的测试难点，能够适应各种医用电气设备的视觉报警信号测试。%This paper introduces several test methods of characteristics of alarm indicator lights which can be used in the medical alarm system to verify the compliance of YY 0709-2009. These methods include the direct measurement of the pulse current supply of the alarm signals, image analysing of a video and reception by photoelectric sensor. After the comparation of the advantages and disadvantages among these methods, this paper proposes a new method of signal reception. This method which used a silicon photocellas the sensor with light filter in its front, and amplified circuit in the output end then used an oscil ograph as the reviewer, has resolved the testing difficulties of the flashing signal simulating by LCD, and can be applied to test the alarm indicator lights in any medical electrical equipment.
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