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一、概述美国科学仪器制造协会(SAMA)1966年制订了仪表和控制系统功能符号图。这套图例符号图简单、通用,允许带有各种详细注解。而且各厂家可用不同的字母、符号表示同一控制作用,比较灵活。在仪器厂商的说明书中得到广泛应用。随着我国引进技术、设备的不断发展,越来越多的SAMA符号图与我国自动控制专业的同志见面。目前,费希尔公司、西坞电器公司等的控制仪表
First, an overview American Scientific Instruments Manufacturers Association (SAMA) in 1966 developed a instrumentation and control system function symbols. The legend of the legend is simple and versatile, allowing a wide variety of annotations. And various manufacturers can use different letters, symbols that the same control role, more flexible. Instrument manufacturers in the manual has been widely used. With the introduction of technology and equipment in our country, more and more SAMA symbol maps have met with the comrades in our country’s automatic control industry. Currently, Fischer, Westwood Electric and other control instruments