​Introduction to the structure composition and use principle of small floor scale

Introduction to the structure composition and use principle of small floor scale

The small scale is mainly composed of bearing device, weighing display instrument (hereinafter referred to as the meter), weighing sensor (hereinafter referred to as the sensor), connecting parts, limit device and junction box, etc. It can also be equipped with external equipment such as printer, large display screen, computer, weighing management software and stabilized voltage power supply.

Floor scale connected to the computer, printed pound list, is a new way of management; The weighing management system is composed of computer, printer, instrument and weighing software. Vehicle divided into two pounds, gross weight minus tare weight to get a net weight printed pounds list; A small scale is weighed using the principle of strain measurement. A strain gauge is attached to the elastomer of the weighing sensor to form the wheatstone bridge. When there is no load, the bridge is in equilibrium and the output is zero. When the elastomer is under load, each strain gauge then generates strain proportional to the load, and the external load can be measured by the output voltage.

Using the principle

Are weighing or truck in supporting table, under the influence of gravity, through the load transfer of gravity to the weighing sensor, weighing sensor elastomer deforms, attached with the elastomer strain gauge bridge on the road out of balance, output directly proportional with the weight value of electrical signals, the linear amplifier will signal amplification, and then converted to A digital signal by A/D, by instrument microprocessor (CPU) after the weight signal processing according to the weight data directly. After the printer is configured, the weighing data can be printed and recorded. If the computer and weighing management software are configured, the weighing data can be comprehensively managed through the weighing management system.

As we all know, there are many brands of floor scale and the price varies greatly. The price of electronic truck scale is determined by the steel materials, display instruments, sensors, junction boxes and wires, and welding technology, which exactly determine the accuracy and stability of the floor scale. Hope user chooses the product of manufacturer of big brand as far as possible when choose and buy floor scale so, must not light graph price is cheap.

There are strict requirements on the foundation construction of the scale, as well as the selection of the installation location and the construction of the measuring room to be scientific and reasonable to facilitate the normal entry and exit of the scale.

The first verification of electronic floor scales is particularly important. Many measurement and testing departments omit the detection steps during the first  verification, and some even reduce the weight required for the detection. As a result, it is impossible to determine whether part of the measurement performance of electronic floor scales meets the requirements. It is also very important to reasonably determine the verification cycle according to the usage frequency of floor scale for subsequent verification.

Users should pay attention to the working environment of the floor scale, which is electricity, lightning, water and dust proof. Control the speed of the scale body to avoid sudden braking. Frequently observe whether the scale body is flexible and whether there is any foreign body at the bottom and around the scale body. Secondly, the observation display instrument indicates whether the change of value has obvious jump and other abnormalities to prevent the occurrence of cheating.