電氣制圖和識圖知識.doc
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電氣制圖和識圖
一、電氣圖定義
用電氣圖形符號、帶注釋的圍框或簡化外形表示電氣系統或設備中組成部分之間相互關系及其連接關系的一種圖。廣義地說表明兩個或兩個以上變量之間關系的曲線，用以說明系統、成套裝置或設備中各組成部分的相互關系或連接關系，或者用以提供工作參數的表格、文字等，也屬于電氣圖之列。
二、電氣圖分類
1、系統圖或框圖：用符號或帶注釋的框，概略表示系統或分系統的基本組成、相互關系及其主要特征的一種簡圖。
2、電路圖：用圖形符號并按工作順序排列，詳細表示電路、設備或成套裝置的全部組成和連接關系，而不考慮其實際位置的一種簡圖。目的是便于詳細理解作用原理、分析和計算電路特性。
3、功能圖：表示理論的或理想的電路而不涉及實現方法的一種圖，其用途是提供繪制電路圖或其他有關圖的依據。
4、邏輯圖：主要用二進制邏輯（與、或、異或等）單元圖形符號繪制的一種簡圖，其中只表示功能而不涉及實現方法的邏輯圖叫純邏輯圖。
5、功能表圖：表示控制系統的作用和狀態的一種圖。
6、等效電路圖：表示理論的或理想的元件（如R、L、C）及其連
Electrical mapping and knowledge map
First, the definition of electrical diagrams
Electrical graphic symbols, annotated outline around box or simplified electrical system or equipment in that part of relationship and connection between the relationship of a map. Broadly said that two or more than two variable relationship between the curve, to illustrate the system, complete installation or equipment 中 relationship between the various components of the Xiang Hu Huo Lian Jie relations, Huozhe to Tigonggongzuo Shenshu the form, language, etc., Ye belong to the list of electrical diagrams.
Second, electrical diagram classification
1, the system map or diagram: annotated with the symbol or the box, briefly said that the basic component systems or subsystems, relationship and the main features of a diagram.
2, circuit diagram: Graphical symbols for use in accordance with work order detail that circuit, equipment or sets of devices to connect all the components and relationships, regardless of its actual location of a diagram. Purpose is to facilitate the detailed understanding of the role of theory, analysis and computation circuits.
3, function diagram: representation theory or ideal circuit without involving the realization of a diagram, schematic drawing of its purposes is to provide a basis or other relevant plan.
4, logic diagram: The main use of binary logic (AND, OR, XOR, etc.) a unit of graphical symbols for diagrams, which involve not only the realization that functional logic diagram called pure logic diagram.
5, menu plans: that the role and status control system of a graph.
6, the equivalent circuit: that theory or ideal elements (such as R, L, C) and even