Abstract: The performance differences of different types of weighing sensors have a great impact on the use of electronic truck scales. By comparing the performance of analog weighing sensors and digital weighing sensors. Comparing price, stability and accuracy, digital load cells are better than analog load cells in terms of stability and accuracy. It is recommended to use digital load cells. Truck scale.
Electronic truck scale mainly consists of scale body, load sensor and data. It is composed of wires, junction boxes, weighing instruments, etc., for better application. Electronic truck scale performs measurement operations and recognizes different types of weighing sensors. Research on the impact of differences in device performance is very necessary. 1 Working principle of electronic truck scale. Electronic truck scales are divided into digital types according to different sensor types. Electronic truck scales and analog electronic truck scales. The working principle of the analog electronic truck scale is: measured test. The mass of the object acts vertically on the weighing platform of the electronic vehicle scale.
The weighing platform of the vehicle scale transfers the mass of the measured object to the sensor, so that the sensor. The elastic body deforms, causing the sensor to stick to the elastic body and the resistance values of the strain gauges that make up the whist bridge change and the bridge is balanced. Broken and outputs a voltage that is linearly related to the measured size
Signal. Because the sensitivity of analog load cells is slightly different. The voltage output of each sensor under the action of the same measured object. Slightly different, affecting the consistency of weighing, so it needs to be in the system. Connect to a junction box and adjust the output signal of each sensor to one. The voltage signal output from the junction box is connected to the weighing instrument. After table processing, the measurement results are displayed in digital form.
Working principle of digital electronic truck scale: in simulating electronic vehicles. The weighing sensor is equipped with amplification filter, A/D conversion, and microprocessor core.
A digital processing circuit composed of chips and temperature sensitive components, using electrical. Sub-beam and laser welding for sealing. Using digital transmission to overcome
Analog load cells have small signals, short transmission distances, and anti-interference capabilities. Shortcomings such as poor strength and poor anti-cheating ability. Microprocessor chip has been used to store. Integrated program software to implement various digital electronic truck scale sensors based on word compensation process, conduct comprehensive performance testing and verification, and make it output. The digital signal meets the technical requirements.