触摸式电子锁的探头设计（Probe design of touch type electronic lock）.doc

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触摸式电子锁的探头设计（Probe design of touch type electronic lock）.doc

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触摸式电子锁的探头设计（Probe design of touch type electronic lock）

触摸式电子锁的探头设计（Probe design of touch type electronic lock） Probe design of touch type electronic lock Department of physics, School of science, Soochow University, Tang Rongsheng, Li Wenshi Abstract: [Abstract] this paper discusses the working principle of touch switch, analyzes and compares several typical touch switch unit circuits, and gives a scheme of probe design of double point contact electronic lock. The [keyword] touch switch electronic lock -------------------------------------------------------------------------------- The introduction The electronic lock is a new type of lock controlled by electronic circuit, which began in the early 70s. The touch type electronic lock adopts touch mode to input the unlocking password, and the operation is convenient, which is favored by the manufacturer of the electronic lock. The touch probe of the electronic lock is part of the input, the touch switch, the place is better than the traditional mechanical switch is: no moving parts, no wear, long service life; the use of silence; low cost; novel. The Referring to the related national standard GB10409-89 about the design and manufacture of electronic locks and related standard GA25-92, the author of the touch probe type electronic lock design put forward the following requirements: high sensitivity, high mechanical strength, high static voltage. Among them, it is a technical bottleneck to guarantee the high sensitivity of the touch probe. Therefore, based on the study of the working principle of touch switch and the analysis and comparison of several typical touch switch unit circuits, a scheme for the design of probe of double touch type electronic lock is presented. In 1 the working principle of the touch switch In recent years, the system of removing mechanical switches from electronic systems has become a system of pure electronic. All mechanical switches are becoming electronic, and touch switches come into being. The There are two main ways to realize the switch acti