Accurate electronic weighing scale calibration method

Abstract

The invention discloses an accurate electronic weighing scale calibration method comprising the following steps that (1) an electronic weighing scale is put on a horizontal platform, and the surface of the platform and the bottom surface of the electronic weighing scale are wiped by cotton cloth when putting the electronic weighing scale; (2) the surface of the electronic weighing scale is wiped by the cotton cloth and then the switch of the electronic weighing scale is turned one; and (3) a measuring cylinder is taken and a certain volume of distilled water is measured by the measuring cylinder. The mass of the measuring cylinder loaded with the certain volume of distilled water is weighed by the electronic weighing scale and the display value is compared with the actual mass of the measuring cylinder so as to acquire the indication error and realize the effect of calibrating the electronic weighing scale. Besides, the internal part of the measuring cylinder is washed by the distilled water before using the measuring cylinder to measure the distilled water and the water drops remaining on the internal wall are absorbed by absorbent paper after measurement so that the calculation error of the actual mass value can be reduced, the acquired indication error is enabled to be more accurate and the calibration accuracy can be enhanced.

Description

technical field [0001] The invention belongs to the technical field of instrument calibration, and in particular relates to an accurate electronic weighing scale calibration method. Background technique [0002] Electronic weight scale is an intelligent weight measuring instrument, which has the advantages of high measurement accuracy and convenient reading. However, when it is not used for a long time, there will be certain errors in the electronic weight scale, which makes it necessary to check the electronic weight when it is used again. However, the calibration accuracy of the current calibration method is low, and the deviation of the obtained indication value is relatively large, which in turn reduces the measurement accuracy of the electronic weighing scale. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the invention provides an accurate calibration method for electronic weighing scales. [0004] In order to achieve the ...

AI Technical Summary

Problems solved by technology

[0002] Electronic weight scale is an intelligent weight measuring instrument, which has the advantages of high measurement accuracy and convenient reading. However, when it is not used for a long time, there will be certain errors in the electronic weight scale, which makes it necessary to check the electronic weight when it is used again. However, the calibration accuracy of the current calibration method is low, and the obtained indication error deviation is relatively large, which in turn reduces the accuracy of electronic weighing scale measurement