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本文介绍在特殊建筑工程测试中采用多路信息远距离传送的一种新方法.选用COMS集成电路、晶体管、千簧继电器组成采样、控制传输装置,只需单根信号线就可传送任意多路信息。用该方法制成的装置,用于240米烟囱温度应力的测试证明,在适用范围内,木方法显示了价廉、简易、耗电省、可靠性高和抗干扰能力强的特点。
This article introduces a new method of multi-channel information transmission in special construction engineering tests. Using COMS integrated circuits, transistors, and thousands of spring relays to form a sampling and control transmission device, one single signal line can be used to transmit any multiple channels. information. The device made by this method was used to test the temperature stress of a 240m chimney. Within the scope of application, the wood method showed the characteristics of low cost, simplicity, low power consumption, high reliability and strong anti-interference ability.