Master the types of weighing machines in five minutes

Along with the development trend of the period, traditional weighing equipment has become less and less suitable for the needs of social and economic development, which has promoted the development trend of weighing equipment to a certain level. The technical development of its weighing machine is the driving force of the key development trend. The basic technical principles are all scientifically proven, but most of them have advantages and disadvantages. This must be considered by the sales market. It is everyone's preference that has application value. Weighing machines are generally used for precise measurement of net weight, which is an indispensable part of everyone’s daily life. We can often see that, for example, at the counter of a shopping mall or on a highway, the weighing machine is composed of polyurethane elastomer with strain gauge Generally made of steel or aluminum, it is very strong and has little elastic deformation. As the term polyurethane elastomer is often used to say, steel or aluminum can cause a certain level of deformation under load, but then it will return to its original position and cause a ductile response to each load. This very small change can be based on Strain gauge is obtained. The strain gauge is an electric conductor that is bent and firmly adhered to the base steel plate. When the base steel plate is driven, it stretches together with the electric conductor. When it becomes smaller, it will shorten, which will cause a resistor in the electric conductor. When the change occurs, the strain gauge is firmly fixed on the polyurethane elastomer, so the same deformation will occur. For the weighing machine, this strain gauge is placed in the Wheatstone bridge, which represents the connection of four strain gauges. Together to create a bridge, and the direction of the measuring force is aligned with the two ends of the measuring grid. If the object is placed on the weighing machine or suspended training on the weighing machine, the net weight of the object can be clarified. The estimated load of the weighing machine is along the center of the earth from beginning to end, that is, the direction of gravity. Although the force in the direction of gravity has a similar design, the weighing machine is not like this. The weighing machine can capture the load generated in all directions, and its gravity direction is irrelevant to the installation method. Types of weighing machines: There are various types of weighing machines to integrate different applications. Common weighing machines include: 1. Spot shot weighing machine: generally used for platform scales placed under hanging objects. 2. Bending beam weighing machine: Place several weighing machines under the steel frame structure, and place weighing standard weights from the top. 3. Working pressure sensor: Place several large and medium-sized weighing machines under the steel frame structure, and load the crane from the top. 4. Supporting force weighing machine: The suspended object is trained directly under one or more sensors. Regardless of which type of weighing machine is used, precision plays a very critical function. The weighing machine has different rated value categories (the rated value category refers to the larger estimated load) and accuracy levels. The strain force of the weighing machine is technical The precision grades are generally C and D, and strain force weighing machines with electronic device calibration have higher precision grades. Therefore, the weighing must be rigorous and accurate. For low-use value goods (such as gravel or gravel), the weighing machine does not need to be very accurate. D-level precision is sufficient. On the other hand, for drugs, the greatest precision is required. The weighing accuracy of the most general daily necessities such as meat, fruits and vegetables is C-level. Mechanical automation or building decoration materials also require C-level accuracy, in order to better guarantee the weighing machine In the field work, it is generally necessary to carry out adjustment and correction not only in the processing plant, but also in the installation position.

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