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Since 2012 - Smart Weigh is committed to helping clients increase productivity at a reduced cost. Contact us Now!
Author: Smartweigh–Multihead Weighter
A spoked multihead weigher is actually a device that transforms a quality data signal into an electronic signal output that can be accurately measured. The reason for the deviation is that all the fine instruments and equipment exist, and only the reason for the deviation is the problem of size. So what are the reasons for the deviation caused by the multihead weigher in the whole process of your application? 1. Wheel spokes The error and leakage of the multihead weigher application are generated by the actual operating staff, which also means that there are many reasons, such as the error and leakage caused by the temperature, including the wrong placement of the probe or the wrong insulating layer between the probe and the precise measurement address. Some other application errors include errors in the entire cleaning process of gas or other vapors. Application errors also touch the wrong placement of smart transmitters, so positive or negative working pressure will harm the correct reading. 2. Characteristic errors and omissions are original to the machine and equipment itself. It is the difference between the machine equipment's approved transport function characteristics and the actual characteristics. Such errors and omissions include DC drift values, slope errors or slope nonlinearities.
3. Dynamic errors and omissions The characteristics and corrections of many sensors are all available under the static data standard, which means that the main input parameters of the application are static data or similar static data. Many sensors have strong vibration reduction, so they do not It is easy to quickly reflect changes to key parameters, such as a temperature sensor that requires several seconds to reflect a step change in temperature. 4. The temperature sensor is not easy to jump to a new characteristic impedance or produce a drastic change immediately. On the contrary, it is gradually modified to a new value. Then, if the multihead weigher with delay characteristics is used to reflect the rapid modification of the temperature, the output wave type will drop frames because the period includes dynamic errors. The factors that produce dynamic errors and leaks are shadowing time, amplitude dropout and phase difference dropout.
5. Insertion errors and leaks are errors and leaks caused by modifying the main parameters of accurate measurement when a sensor is inserted into the management system. Generally, such problems will appear when measuring electronic devices, but in other ways Similar problems will also appear in accurate measurement. For example, if a voltmeter accurately measures the working voltage in the control loop, it will undoubtedly have an original characteristic impedance, which is much larger than the characteristic impedance of the control loop, which may show the load of the control loop. , the reading value will have very large errors and omissions. The reason for these types of errors and omissions is the application of a smart transmitter that is too large for the management system; perhaps the dynamic characteristics of the management system are too slow, or the management Too much energy is loaded into the system from heating. 6. The natural environment error comes from the natural environment of the sensor application. The multihead weigher factor includes temperature, or swing, shock, altitude, compound volatilization or other factors, which often endanger the characteristics of the sensor. Therefore, in practical application, Such factors have always been grouped together.
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