The digital electronic truck scale weighing sensor system is based on traditional analog sensors and integrates modern microelectronics technology and microcomputer. An electronic weighing technology developed from computer technology. This article focuses on two types of weighing sensors through data analysis. The impact of performance differences on cost performance, stability, accuracy, etc. 

Annual replacement quantity of digital load cells. There are 4 units, which is much lower than the number of replacement analog load cells. Although The unit price of digital weighing sensors is 240% higher than that of analog sensors, but Its service life is 286% longer than that of analog sensors, and a single digital scale. The annual maintenance cost of the heavy sensor (replacement cost is shared equally) is only for analog transmission. sensor 13.46%. It can be seen that digital load cells are cost-effective than analog sensors.

Analog load cells have slightly different sensitivities when shipped from the factory. And the degree of aging of each sensor is different during use. Aggravating the sensitivity inconsistency of the sensor, so that the effect of the same measured object. The output signal (data) of each sensor is different. The digital weighing sensor has a unique mark. After multiple sensors are combined in parallel to form a scale. The weighing instrument checks the status of each sensor. Adjust the sensor coefficient through the weighing instrument to compensate the output signal of the weighing sensor. Different types of electronic truck scales were calibrated. Before the calibration, it was found that the accuracy performance of analog electronic truck scales and digital electronic truck scales was quite different. According to JJG539-2016 Digital Indicating Scale Calibration Regulations, by comparing the pre-calibration data of different types of electronic truck scales, in many test links such as zero point, offset load, weighing point, repeatability, etc., the accuracy of digital electronic truck scales is higher than that of analog Truck scale.

The performance differences of different types of weighing sensors have an impact on cost-effectiveness and measurement performance. The stability and accuracy of the truck scale are greatly affected. Analog weighing transmission. The advantage of sensors compared with digital sensors is that the price per unit is lower, and the initial investment is. The investment cost is relatively small, but the maintenance cost in the middle and later stages is high. The weighing sensor. The instrument has a short service life, poor stability, and difficult to maintain measurement accuracy barrier. For long-term considerations, it is recommended to adopt digital truck scales.