The most popular and commonly utilized measuring tool in China's industrial production sector is the digital instrument. The quality and efficiency of industrial output are significantly impacted by its accuracy and dependability, which is crucial in the field of thermal metering. The majority of these instruments turn the observed temperature into electrical signals using thermometric sensor components. The accuracy of the measurement results is impacted by the different electromagnetic interference that electrical signals are subject to during transmission. In particular, this study studies the issue of electromagnetic interference that affects digital temperature monitoring instruments and makes a suggestion for how to reduce series interference using signal line twisting, shielding, and filtering. Grounding, connecting ground, shielding layers, and suspension technology are utilized to reduce common-mode interference. The experimental findings demonstrate that it is possible to efficiently reduce the electromagnetic interference of digital temperature sensor equipment.
WANG Xin-Zi. , {{custom_author.name_en}}et al.
Interference factors analysis and control measures of digital instrument[J]. Industrial Measurement, 2024(02): 0-0