摘 要 :简易金属探测器是实现探测物体金属成分这一功能的一种简单探测装置。本文以设计和制作简易金属探测器为主要内容,在这其中涉及与简易金属探测器相关联的电子电路、模拟电路等基本知识,并且以这些知识中的电磁感应原理、电磁震荡原理、信号的放大原理和整流滤波原理等为基础,来设计金属探测器的主要电路和制作简易金属探测器实物。此次毕业设计的实物结构简单、反应灵敏、可靠性高。40525 毕业论文关键词:金属探测器;电容三点式振荡电路;放大电路;整流滤波电路
The design of simple metal detector
Abstract: Simple metal detector is to realize the detection of metal objects composition the function of a simple detection device. This article is main content with simple design and production of metal detectors, associated with simple metal detectors in this involving knowledge of basic electronic circuits, analog circuits, etc, and with the knowledge of electromagnetic induction principle, the principle of electromagnetic oscillation, signal amplification principle and rectifying filtering principle, etc, on the basis of designing the main circuit and the metal detector manufactured simple metal detectors. The graduation design of the physical structure is simple, responsive, and high reliability.
Keywords: Metal detectors; capacitance three-point oscillator circuit; amplifier; rectifier filter circuit
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