Method for online calibration of width gauge

Abstract

A method for online calibration of a width gauge belongs to the technical field of metrology and calibration methods, and is used for on-line accurate calibration of width gauges. The technical solution is that the method comprises the following steps of determining the relationship between the quantity provided by the measurement standard and a corresponding indication, determining the relationship of a measurement result obtained by the indication by using the information, and sequentially performing calibration measurement, calculation of an indication value error of the width gauge, calculation of repeatability of the indication, calculation of indication drift, data processing of calibration methods, and evaluation of standard uncertainty. The method provided by the invention, which is a major breakthrough in the online calibration problems of large equipment in the metallurgical industry, uses the error theory to design the standard equipment, determines the measurement requirements of the product, uses statistical methods to check the consistency of the measurement results, evaluates the measurement uncertainty of the measurement results and proves that the requirement meeting of quantity transfer and calibration development. Compared with the traditional inspection calibration method, the method provided by the invention saves a lot of time and labor costs, and is morescientific, active, reliable, accurate and easier to implement.

Description

technical field [0001] The invention relates to an on-line precise calibration method for a width measuring instrument, which belongs to the technical field of measurement calibration methods. Background technique [0002] In the plate production of metallurgical enterprises, the plate width parameters directly affect the product quality, so the plate width measurement is an important process of the hot rolling process. With the higher level of production automation and higher process requirements, almost all metallurgical enterprises are equipped with width gauges to ensure the accuracy of plate width measurement. However, the following is the calibration of the width measuring instrument. Most of the various regulations / standards formulated in our country require the measurement equipment / instrument to be calibrated in the calibration room (under standard calibration conditions). It is necessary to ensure the accuracy of the equipment. However, from the actual point of v...

AI Technical Summary

Problems solved by technology

However, from the actual point of view of the current calibration work of the enterprise, in the process of implementing periodic calibration, it is often encountered that the equipment is not easy to disassemble and install, and some high-precision instruments are easily damaged during the disassembly process, even large-scale precision instruments such as width gauges Equipment cannot be moved, making calibration difficult

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