In the middle of the 20th century, with the manufacture of electronic weighing instruments that utilize one or more load cells connected in parallel, it marked the transition of weighing instruments from the mechanical age to the electronic age. The combination of microprocessors and load cells has brought about a major transformation in the field of weighing. With the progress of society, people's requirements for the accuracy of weighing equipment are getting higher and higher. Since the 1980s, electronic weighing instruments have been widely used in various fields from micro-weighing to large-scale professional weighing due to their excellent performance.An electronic truck scale is a large-scale weighing device for goods, generally composed of three parts: the load-bearing device, the weighing sensor and the weighing display instrument. According to different needs, electronic truck scales can be combined with various external devices to expand their functions. With the continuous advancement of China's scientific and technological level, the technology of electronic truck scales in China has now reached the world's advanced level. China is also a major producer and manufacturer of electronic truck scales in the world. The most cumbersome aspect of coal yard management in the coal industry is the weighing and calculation of coal-carrying vehicles entering and leaving. Due to the large number of turnover coal yards, the coal yard transportation environment is relatively harsh, and the number of coal-carrying vehicles is large, which leads to frequent errors in coal transportation measurement. The weighing truck scales are also prone to various malfunctions, especially the relatively precise weighing sensors. Once a problem occurs, it often persists for a period of time. Involving multiple batches, coal enterprises have suffered huge direct economic losses. The coal industry's requirements for electronic truck scales include not only accurate weighing and measurement, but also stable performance, durability, and easy maintenance.
(1) Precision improvement
Analog weighing instruments have the defect of "sensitive areas", while digital weighing instruments directly process digital signals, which can effectively avoid this defect. Digital weighing instruments have obvious advantages in anti-interference ability, on-site adaptability and high-precision measurement capability, providing the possibility for the realization of weighing systems with high measurement accuracy.
(2) The degree of intelligence has been enhanced
Digital truck scale instruments can accurately identify faults of individual load cells, achieve intelligent linear correction, automatic digital Angle difference correction, and display the measurement status of individual load cells, making them more convenient and intelligent.
(3) Enhanced anti-interference and anti-cheating capabilities
Digital load cells output digital signals, avoiding the drawback of being easily interfered with during the continuous fluctuations of tiny signals. The processing range of digital signals is larger than that of analog signals, effectively preventing the possibility of cheating during the weighing process and enhancing safety.