矿用瑞利波多频自检装置的设计

Rayleigh wave multi-frequency self-test device design used in coal mine

针对矿用瑞利波探测仪的实际自检需求,在不增加额外的自检辅助设备、供电电源、接口的条件下,利用原有接插件的电源输出和信号输入端口,设计了适合仪器使用的自检装置.电路设计按照测试软件要求,根据不同检测项目要求,输出所需的检测信号.通过对装置输出信号的幅值、频率、失真度进行测试,和与仪器连接后按自检项目逐个进行测试,结果表明多频自检装置满足瑞利波探测仪的自检要求.

In this paper, mining Rayleigh wave detector self-test requirements, at no addition al auxiliary equipment, power supply, and interface conditions, the use of the original con nector of the input and output interfaces, designed for the use of the instrument self test de vices. According to the test software requirements, depending on the test items, the detec tion signals required for the design. By means of the output signal amplitude, frequency, dis tortion, and connected with the instrument self test items one by one according to test re sults show multi-frequency self-test device satisfies Rayleigh wave detector self-test require ments.