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国际上认为,在线校准技术主要是对计算机集散控制系统进行的校准。而在我国,一般认为在线校准技术主要是对不易拆装的仪表进行的检测校准。在线校准技术在我国的应用历史已经比较久,它在应用过程中最大的转变就是在线校准的服务方式已经从实验室转移到了现场。目前,在线校准技术在我国的企业生产中得到了广泛的应用,这种技术不仅能够大大降低企业的生产成本,同时还能够为企业节约资源。本文以在线校准技术为研究对象,从压力变送器的在线校准技术、矿用负压传感器的在线校准技术以及压力测量系统的在线校准技术三个方面进行详细论述。
Internationally, online calibration technology is mainly based on the computer distributed control system calibration. In our country, it is generally considered that the online calibration technology is mainly used for the test and calibration of instruments that are not easily disassembled. Online calibration technology in China has a long history of application, the biggest change in the process of its application is that the online calibration service has been transferred from the laboratory to the scene. At present, the on-line calibration technology has been widely used in the production of our country’s enterprises. This technology can not only greatly reduce the production cost of the enterprise, but also save resources for the enterprise. This article takes online calibration technology as the research object, and discusses in detail three aspects: on-line calibration of pressure transmitter, on-line calibration technology of mining negative pressure sensor, and on-line calibration of pressure measurement system.