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Author: Smartweigh–Multihead Weighter
The multihead weigher is a key device in the load-carrying industry. Many people may not know about it. Today, I will introduce in detail what is a multihead weigher and other basic principles and applications. I look forward to helping you understand the multihead weigher. What is a multihead weigher? A multihead weigher is a device for weighing the net weight, but it is different from the general weighing machine. It converts the net weight data signal of the object into an electronic signal, and displays the net weight of the information object according to the electronic signal. . The application of the multihead weigher should consider whether the application environment is suitable, and the poor application environment will harm its work.
At this stage, there are many types of multihead weighers on the market, such as optical type, hydraulic type, capacitive sensor, and magnetic force type. Each type has its own characteristics and applications. The principle of multihead weigher In the application of multihead weigher, three components give full play to the key functions: polyurethane elastomer, resistance strain gauge and test power circuit. At the beginning of weighing, once the object is installed on the sensor, the polyurethane elastomer will be deformed by the working pressure of the object, and the deformation of the polyurethane elastomer will cause the resistance strain gauge on its surface to follow the deformation, and the deformation of the resistance strain gauge It also causes its resistance value to change, and then the expansion or reduction of the resistance value will be converted into an electronic signal through the inspection power circuit, and then the information can be displayed to show the net weight of the object, so that all weighing is completed.
Let's introduce the three key positions of the multihead weigher. The effect of polyurethane elastomer is very immediate. First, it needs to recognize the interaction force of external objects, and use recoil force to bear the interaction force of this object, and then It needs to cause the transformation of the resistance strain gauge to make all the weighing scales go down; the resistance strain gauge is a transmission component, which converts the interaction force of the polyurethane elastomer to it into the change of resistance value, and then converts the information of this kind of change. Passed to the next step, the composition of the resistance strain gauge is actually a heating wire and an organic material base. The extension of the heating wire can cause the transformation of the resistor; it is very important to test the efficacy of the power supply circuit, so the power supply circuit must be strong. The anti-interference ability ensures that the data signal conversion is not easily affected by the surrounding environment, so as to ensure the accuracy of the weighing scale. Application of multihead weigher Multihead weigher is actually widely used in the weighing industry. Many objects with large net weight that cannot be weighed can be weighed by multihead weigher. For example, for the weighing of trucks on the highway, now a weighing bridge is built on the highway, and a multihead weigher is installed on the weighing bridge, so that if the truck drives to the weighing bridge, it can be weighed and checked. Is there a problem of overloading, so that even if the weighing work becomes easier and easier, it will not endanger the driving of other motor vehicles.
With the development of technology, the multihead weigher is also continuously improved, and it is believed that its main use will become more and more extensive.
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