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一、热处理炉温测量过程中误差来源分析1.交流谐波及噪声对热处理炉温测量过程的影响在热处理车间,特别是使用高频炉的车间,对热处理炉温的测量具有较大影响。原因是交流谐波及噪声的存在,通常会对电网及现场空间中其他系统造成较为严重的干扰,且干扰具有不确定性。如图1所示,由于在高温环境下,热处理炉体内部绝缘材料及测试支架绝缘强度大幅度降低,并且尽管常见的电测仪器
First, the heat treatment furnace temperature measurement error source analysis 1. AC harmonic and noise on the heat treatment furnace temperature measurement process Heat treatment workshop, especially the use of high-frequency furnace workshop, the heat treatment furnace temperature measurement has a greater impact. The reason is that the existence of alternating harmonics and noise usually causes more serious interference to the power grid and other systems in the field and the interference is uncertain. As shown in Figure 1, due to the high temperature environment, heat treatment furnace insulation materials and test stand greatly reduced the dielectric strength, and despite the common electrical measuring instruments