Difficulties in analysis of measurement accuracy deviation of spoke weighing instrument

The spoke weighing instrument is actually a device that changes the quality data signal into an electronic signal output that can be accurately measured. The reasons for the deviations are all existing in delicate instruments and equipment, and only the reasons for the deviations are the size of the problem. Then, what are the reasons for the deviations caused by the weighing instrument in the whole process of everyone's application? 1, The application error of the spoke weighing instrument is caused by the actual operation staff, which also represents many reasons, such as the error caused by the temperature, including the fault of the probe placement or the faulty insulation between the probe and the accurate measurement detailed address. At the same level, some other applications include mistakes in the entire cleaning process of gas or other vapors. Application errors also touch the fault placement of the smart transmitter, so positive or negative working pressure will produce the appropriate reading. harm. 2. The characteristic error is the original of the machine and equipment itself. It is the difference between the machine and equipment's recognized transport function characteristics and the actual characteristics. This type of error includes the DC drift value, the error of the slope or the non-linear shape of the slope. 3. Dynamic error and omission. The characteristics and corrections of many sensors are all available under the static data standard, which means that the main 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 the modification of key-in main parameters, for example, the temperature sensor requires several seconds to reflect the step modification of the temperature. 4. The temperature sensor is not easy to immediately bounce to the new characteristic impedance or produce drastic changes. On the contrary, it is gradually modified to the new value. Then, if the rapid modification of the temperature is carried out by the weighing instrument with delay characteristics, the output will be reflected. The waveform will be out of frame because the period includes dynamic errors and omissions. The factors that produce dynamic errors are the contrast time, the amplitude drop frame and the phase difference drop frame. 5. Insertion errors and omissions are errors and omissions caused by modifying the main parameters of accurate measurement when a sensor is pierced 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, when a voltmeter accurately measures the operating 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. It may show the load of the control loop. , The reading value will have very large errors and omissions. This type of error and omission is caused by 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 management Excessive energy is loaded into the system for self-heating. 6. The natural environment error and leakage come from the natural environment of the sensor application. The weighing instrument factors include temperature, or swing, shock, altitude, compound volatilization or other factors. This feature often harms the sensor, so it is used in practical activities. Such factors have been grouped together.