引言:早在六十年代,我国的仪表工业已生产了带各类附加装置的多点自动平衡记录仪表,如X_Q~WC—314型多点电子电位差计和电子电桥。自从这类仪表问世,在工业自动控制系统中打破了一表一炉的常规控制模式,进入了一表多炉的集中控制新时期。 X_Q~WC—314型多点仪表的独特优点不仅在于多点测量,同时它还能对多点测量对象进行不同温度的控制,这是任何其他类型的仪表所 Introduction: As early as the sixties, China’s instrumentation industry has produced multi-point automatic balance recording instruments with various types of additional devices, such as X_Q ~ WC-314 multi-point electronic potentiometer and electronic bridge. Since the advent of these instruments, the conventional control mode of one meter and one oven has been broken down in the industrial automatic control system and entered a new era of centralized control of many ovens. The unique advantages of the X_Q ~ WC-314 multi-point meter lie not only in multi-point measurements, but also in the control of multi-point objects at different temperatures, which is the answer to any other type of meter