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一、前言随着国民经济的迅猛发展,对工业自动化技术的要求越来越高。工业自动化仪表是实现工业生产过程自动化的一种重要装置。在工业自动化技术中广泛应用一系列的仪器仪表来管理、监视、调节和控制生产过程,达到生产过程的自动化。为了确保生产的优质、高效和安全,仪表的寿命和可靠性就是一个十分关键的问题。往往由于仪表的过早
I. Introduction With the rapid development of national economy, the requirements for industrial automation technology are getting higher and higher. Industrial automation instrumentation is an important device to automate industrial processes. In industrial automation technology widely used a series of instrumentation to manage, monitor, adjust and control the production process, to achieve the automation of the production process. In order to ensure the production quality, efficiency and safety, instrument life and reliability is a very crucial issue. Often due to the instrument too early