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天深同志: 《计量技术》编辑部转来你6月20日的来信。反映你们在对XCZ-101型动圈式温度指示仪进行周期检定中发现,该指示仪在高温刻线处超出误差允许值,且温度愈高,超差愈严重,不知如何调整仪表才能使其指示基本误差在合格范围内的问题。配热电偶的动圈式温度指示仪经长期使用后,难免会出现上述的超差现象,在此,我将在长期实践中采川的调整方法作一介绍,供你参考。动圈式温度指示仪的测量机构中,磁分路调节片可用于调节仪表的示值误差,但因调节片对磁场影响不均匀,使调节后的仪表线性度变差,而且磁分路调节片的最大可调范围只能
Comrade Tian Shen: The editorial department of Metrology transferred your letter of June 20. Reflected in the cycle of your XCZ-101-type moving coil temperature indicator test found that the indicator at a high temperature line beyond the allowable error, and the higher the temperature, the more serious the worse, I do not know how to adjust the instrument to make it Indicate the basic error in the range of qualified questions. With the thermocouple dynamic temperature indicator after long-term use, it is inevitable that the phenomenon of the above will inevitably occur, here, I will practice in the long-term adjustment methods adopted for an introduction, for your reference. Moving coil temperature measuring instrument measuring mechanism, the magnetic shunt regulator can be used to adjust the meter indication error, but due to the regulation of the magnetic field uneven, so that after the adjustment of the instrument linearity deterioration, and magnetic shunt regulation The maximum adjustable range of the film only