1. Principle and development of Weighbridge
  The weighbridge is a large-scale weighing equipment set on the ground, which is mainly used for the measurement of vehicles and goods carried, and belongs to the national compulsory inspection equipment． 

  Before the 1980s, the common weighbridge was a mechanical weighbridge, also known as a mechanical weighbridge, which was constructed purely mechanically using the lever principle.
  In the mid-1980s, with the development of high-precision load cell technology, mechanical weighbridge was gradually replaced by weighbridge with high precision, good stability and convenient operation.

  The weighbridge consists of sensor, junction box, printer and weighing instrument.

  Todays weighbridge can be equipped with computer and weighing software.
  2. Basic configuration of Weighbridge

  The standard configuration of weighbridge is mainly composed of three main parts: load-bearing transmission mechanism (scale body), high-precision weighing sensor and weighing display instrument, so that the basic weighing function of weighbridge can be completed, and printer, large screen display and weighing management software can be selected according to the requirements of different users to complete the needs of higher-level data management and transmission.
  2.1 bearing and force transmission mechanism
  2.2 high precision load cell

  High precision weighing sensor is the core component of the weighbridge, which is used to convert the weight value into the corresponding measurable electrical signal. Its quality is directly related to the quality of the whole weighing instrument.
  2.3 weighing display instrument
  2.4 accessories
  2.4.1 printer
  2.4.2 weighing management software

  It is used for further processing, storage, transmission, etc. of weight data.
  3. Weighbridge is classified by scale

According to the scale structure, the weighbridge can be divided into U-shaped steel weighbridge, channel steel weighbridge, I-shaped steel Weighbridge and reinforced concrete weighbridge;

  According to the sensor, it can be divided into digital weighbridge, analog Weighbridge and all weighbridge;

  According to the output signal of the sensor, the weighbridge can be divided into analog Weighbridge and digital weighbridge; according to the weighing method, it can be divided into static Weighbridge and dynamic weighbridge (weighbridge);

  According to the way of installation, it can be divided into above ground balance and middle ground balance;
  According to the platform structure, it is divided into steel structure platform and concrete platform;
  It can be divided into explosion-proof Weighbridge and non explosion-proof weighbridge according to the use environment;

  According to the degree of automation of weighbridge, it can be divided into non automatic Weighbridge and automatic weighbridge.