Error Classification of Steam Flow Meters Different Characteristics of Various Errors

Abstract: Error classification of steam flow meter The information on the different characteristics of various errors is provided by excellent flow meter and flow meter manufacturers and quotation manufacturers. 1. System error refers to the regular error caused by the measuring instrument or method, which is reflected in the deviation from the true value, such as the zero point error of the instrument, the error of the annual change, the error caused by environmental conditions such as temperature and electromagnetic field, and the power errors caused by the source, etc. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following is the article details of the different characteristics of various errors in the error classification of steam flowmeters. 1. System error refers to the regular error caused by the measuring instrument or method, which is reflected in the deviation from the true value, such as the zero point error of the instrument, the error of the annual change, the error caused by environmental conditions such as temperature and electromagnetic field, and the power errors caused by the source, etc. The absolute value and sign of this error remain unchanged, or the error obeys a certain functional relationship when the measurement conditions change. System Error After grasping the cause of the error, the instrument can be calibrated and the test environment can be changed to check in order to find out the value of the system error and try to eliminate it. For example, the angular velocity measurement error caused by the eccentricity of the turntable changes according to the sine law, and this error can be eliminated by aligning the center. 2. Random errors, in addition to systematic errors that can be excluded, are also caused by random factors, and errors that are generally difficult to correct are called random errors. Repeated testing under the same conditions, it can be found that the probability of random error obeys the law of statistical analysis. Error theory is the knowledge of estimating the true value of measurement by performing statistical processing on a limited set of data obtained for this law of random error. The characteristic of random error is that the sign and size of the error are changing at any time. There are many factors that affect this error, each of which has only a small effect on the measured value individually, and random error is caused by the sum of these small effects. Although some factors that produce random errors are known, such as the degree of air dryness, the degree of purification, and the size or direction of the airflow, they all have a small impact on the measurement results, but they cannot be accurately controlled. In addition, some factors that cause random errors cannot be determined. 3. The gross error refers to the human discrepancy error caused by the observer's misreading or the fault of the sensing element. This error should be avoided in the measurement. The measurement value with gross error is called bad value. According to the criteria of statistical test method, it can be judged whether it is a bad value, and the bad value should be eliminated. There are certain rules to be followed to exclude such errors. Hope the above information will be helpful to you. The information points we have summarized for everyone need to be adopted and used by everyone. This is not only the maintenance of the product but also the convenience of its own use. So stay tuned. Choose us first when purchasing instruments. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Error Classification of Steam Flow Meters Different Characteristics of Various Errors'

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