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概述在化工、炼油、发电和冶金等连续生产过程中,常常需要对温度、压力、流量和物位等参数进行测量和控制.通常把温度、压力、流量和物位称为热工参数,而把测量这些参数的传感器和仪表统称为热工仪表.随着生产的发展和自动化水平的提高,温度、压力、流量和物位等参数的测量和控制几乎遍及到诸如机械、造纸、纺织、制药、食品、轻工以及交通运输等整个工业生产部门.因此,准确地测量这些参数,对于提高产品质量,保证生产设备安全正常运转,减轻工人劳动强度,有着十分重要的意义.
Overview In chemical, oil refining, power generation and metallurgy processes, it is often necessary to measure and control parameters such as temperature, pressure, flow and level, etc. Temperature, pressure, flow and level are often referred to as thermal parameters and Sensors and meters that measure these parameters are collectively referred to as thermal instrumentation. As production progresses and automation increases, the measurement and control of parameters such as temperature, pressure, flow, and fill levels are common across industries such as machinery, paper, textiles, pharmaceuticals , Foodstuffs, light industry, and transportation, etc. Therefore, accurately measuring these parameters is of great significance to improving product quality, ensuring the safe operation of production equipment and reducing the labor intensity of workers.