Weighing principle of explosion proof electronic Scale

Weighing principle of explosion proof electronic Scale

Explosion proof electronic weighing scale replaces the traditional mechanical weighing tool based on lever balance in structure and principle. Compared with the traditional mechanical weighing tool;

The explosion-proof weighing electronic scale has the advantages of high weighing accuracy, small installed volume, wide application range, easy operation and use, etc. it is a brand-new weighing instrument in appearance layout, working principle, structure and material.

Weighing Electronic scales are commonly used in daily life, widely used in supermarkets, large and medium-sized shopping malls, logistics distribution centers.

The data acquisition part of explosion-proof electronic weighing scale is mainly divided into system initialization, key, display processing and signal frequency input processing. The steps can be summarized as follows:

1:Analyze the system control requirements and determine the algorithm: analyze the complex problems, find out the reasonable calculation method and appropriate data structure, so as to determine the steps of programming. This is the key to making a high quality program.

2:Draw the flow chart according to the algorithm: drawing the program block diagram can gradually concretize the algorithm and solving steps, so as to reduce the possibility of error.

3:Programming: according to the algorithm and steps shown in the program block diagram, select appropriate instructions and arrange them to form an organic whole, namely the program;

When the object is placed on the platform of the weighing scale body, its weight will be transferred to the load cell through the scale body, and the sensor will produce the force electricity effect, which will convert the weight of the object into the electrical signal (voltage or current, etc.) which is a certain functional relationship (generally proportional relationship) with the weight of the object. The signal is amplified by the amplifying circuit, filtered, and then converted by the analog/digital (A/D) device. The digital signal is sent to the CPU of the microprocessor for processing. The CPU continuously scans the keyboard and various function switches, and carries out necessary judgment and analysis according to the keyboard input content and the status of various function switches. The software of the instrument controls various operations. The result of calculation is sent to the memory. When it needs to be displayed, the CPU sends out instructions to read it out from the memory and send it to the display or printer for printing. Generally, signal amplification, filtering, A/D conversion and various signal operations are completed in the weighing instrument.