为什么分析仪器有的叫仪，有的叫计？

Core Viewpoint - The article discusses the naming conventions of analytical instruments as per the standard GB/T12519-2021, emphasizing the importance of adhering to established naming principles to avoid confusion in the industry [1][2]. Group 1: Naming Principles - The naming of analytical instruments is guided by specific principles that consider the measurement method and the object being measured [2]. - Instruments that measure a single substance (excluding gases) and assign values are typically referred to as "meters," such as pH meters and salinity meters [2]. - Instruments designed to measure gases are generally called "analyzers," for example, carbon monoxide analyzers and carbon dioxide analyzers [2]. - Instruments that analyze images to study the morphology of substances are referred to as "microscopes," such as transmission electron microscopes and scanning electron microscopes [2]. - Systems that encompass sample processing, analytical instruments, data management, and auxiliary facilities are usually called "systems," like air quality detection systems and water quality detection systems [2]. - Other analytical instruments not fitting the above categories are generally referred to as "instruments" [2]. - Safety alarm instruments that only provide sound or light warnings are typically called "alarm devices," while those with other display methods are referred to as "explosion detectors" or "detectors" [2].