This schematic symbols chart pdf is about technical illustrations. Unsourced material may be challenged and removed.
A schematic usually omits all details that are not relevant to the information the schematic is intended to convey, and may add unrealistic elements that aid comprehension. A schematic diagram of a chemical process uses symbols to represent the vessels, piping, valves, pumps, and other equipment of the system, emphasizing their interconnection paths and suppressing physical details. In the schematic diagram, the symbolic elements are arranged to be more easily interpreted by the viewer. While roads and features appear as abstract representations without resemblance to reality, their locations, orientations, and distances are as accurate as possible to make the map practical. In electrical and electronic industry, a schematic diagram is often used to describe the design of equipment. Schematic diagrams are often used for the maintenance and repair of electronic and electromechanical systems. In electronic design automation, until the 1980s schematics were virtually the only formal representation for circuits.
These tools go beyond simple drawing of devices and connections. Usually they are integrated into the whole IC design flow and linked to other EDA tools for verification and simulation of the circuit under design. Schematic diagrams are used extensively in repair manuals to help users understand the interconnections of parts, and to provide graphical instruction to assist in dismantling and rebuilding mechanical assemblies. This page was last edited on 28 September 2017, at 01:35. Charts are often used to ease understanding of large quantities of data and the relationships between parts of the data. Charts can usually be read more quickly than the raw data.
Certain types of charts are more useful for presenting a given data set than others. A chart can take a large variety of forms, however there are common features that provide the chart with its ability to extract meaning from data. Typically the data in a chart is represented graphically, since humans are generally able to infer meaning from pictures quicker than from text. Text is generally used only to annotate the data. A graph’s title usually appears above the main graphic and provides a succinct description of what the data in the graph refers to. If a horizontal and a vertical axis are used, they are usually referred to as the x-axis and y-axis respectively. Each axis will typically also have a label displayed outside or beside it, briefly describing the dimension represented.
If the scale is numerical, the label will often be suffixed with the unit of that scale in parentheses. The grid can be enhanced by visually emphasizing the lines at regular or significant graduations. The emphasized lines are then called major grid lines and the remainder are minor grid lines. The data may appear as dots or shapes, connected or unconnected, and in any combination of colors and patterns. Inferences or points of interest can be overlaid directly on the graph to further aid information extraction.