Discussion on Technical Problems and Solutions in Weighing Metrology Verification

Abstract: At the same time as the increase of market economic activities, the importance of weighing instrument applications has become increasingly prominent. As one of many measurement methods, it plays an important role that can not be ignored in the buying and selling activities. The measurement verification of weighing instruments is to improve the accuracy of measurement. The key is the strong guarantee of fair trade. This article explores specific solutions based on the analysis of technical issues.

Weighing instrument verification is an essential part of the application of weighing tools. Through the inspection of measurement accuracy, we can fully protect the legitimate interests of consumers and the interests of merchants. It can reduce the occurrence of unfair trade and inaccurate metering activities in market trading activities. It can be seen from this that the measurement verification work of the instrument is extremely necessary and important. Therefore, effective methods should be taken to solve the technical problems and optimize the test results.

1 Analysis of Technical Problems

1.1 Detecting Structural Problems

Weighing instruments are composed of a variety of structures, and the difficulty of different structures varies from test to verification. Compared to weighing tests and partial load tests, weighing instruments are relatively difficult. In order to overcome the difficulty of different structural verification, in order to optimize the accuracy of calibration, the application rate of sensors and force measuring unit jacks should be increased, thereby reducing the operation difficulty and simplifying the operation process [1].

1.2 Stability of sources

Whether the weighing system can accurately measure and reasonably control the indicators is related to the stability of the power source. Weighing components will undergo corresponding deformation under the action of different external forces, and then the force source will be reduced by the influence of component deformation, and the display value will fluctuate, resulting in distortion of the measurement results. The problem of unsteady force source can be properly solved by the superposition method and the optimization test process. The superposition method is to make up for the relevant force value by means of an electrohydraulic device. Optimize the test process: apply mechanical jacks to reduce the elastic deformation; the device structure is converted to the form of the triangle in the upper and counterforces in order to reduce the geometric deformation.

2 specific solution

2.1 Clear Scope

In order to effectively solve the technical problem of weighing instruments, we must first analyze the existing technical problems comprehensively, and propose specific verification methods on the premise of clear verification scope. To this end, relevant departments in China have issued relevant verification procedures. The clear description of the scope of the test. They are the scope of public safety, the scope of environmental monitoring, the range of sale and settlement, and the scope of medicine and hygiene. When carrying out the work of weighing instruments, the theoretical provisions of the aforementioned documents cannot be specific to the object of verification, and the object of the object is different. The verification parties are not in agreement. The parts produced by a factory need to follow the corresponding proportions. If weighing instruments are tested by means of load-bearing methods, the range of weighing instruments should be appropriately changed. At the same time, the degree of difficulty of technical supervision departments is also increased to some extent. In response to traditional procedures and regulations, innovations that keep up with the times are targeted to supplement and upgrade the contents. Only in this way can we facilitate the smooth progress of weighing instruments. In addition, the verification personnel should continue to enrich the basic knowledge, enhance professional capabilities, and improve the measurement accuracy based on a clear scope of verification [2].

2.2 Innovation Inspection Ideas

The verification activities are mainly guided by the ideology of the verification. Therefore, in order to optimize the verification procedures and improve the verification results, we must first innovate the inspection ideology and establish the correct concept of weighing instruments. We cannot use the evasive inspection method to reduce the verification costs. If the verification ideology has not been adjusted, then the technical supervision department will adopt a mandatory method to implement the weighing instrument verification, and the weighing instrument use unit will also respond flexibly to evade the verification by hiding the non-compliance weighing instrument. In this regard, the verification personnel can solve the problem from three aspects. First, strengthen the efforts of the department. Once they find that the instrument is hidden, conduct economic fines on it and guide such units to proactively verify the instrument in accordance with the weighing instrument verification procedure; then, expand publicity. Scope, through the necessity and significance of the network media to magnify the weighing measurement verification, propagate the correct idea of ​​weighing measurement verification, in order to improve the ideological understanding of the use of weighing instruments, at the same time, it should also be used to universalize the relevant norms of weighing instruments; Enhance consumer awareness of supervision and avoid the appearance of opportunistic trading behaviors, which plays an important role in market fairness and market order stability.

2.3 Optimization of the verification structure

Traditional inspection structures have the deficiencies of the unverified verification process, disordered certification process, and unsatisfactory certification environment. To this end, the quality supervision department should comprehensively consider the verification of weighing devices, improve the issuance standards of certificates, and at the same time optimize the management of certificates, and only verify the weighing instruments. An orderly and certified environment-optimized entity shall issue a verification certificate to provide verification certificates for scales.

2.4 Pay attention to the verification record

Because the form of the original verification record is relatively simple, and the verification form is not standardized enough, coupled with the weak awareness of the verification records of individual verification agencies, the verification record has many problems in the actual operation. The specific problems are as follows: First, the verification record Insufficiently comprehensive, in the actual weighing device verification, often missed, mis-recorded, fuzzy records and other phenomena; Second, there are few records of data verification, verification results are only displayed in qualified or non-qualified words, and then can not be improved for the subsequent weighing instrument verification method Provide data basis; Second, there are unclear test record labels. In the actual verification process, problems such as certificate confusion and difficulty in verification can easily occur. This will greatly waste the verification time and is not conducive to the improvement of verification efficiency. Finally, the verification file storage location is not Fixed, and often the phenomenon of file loss, file integrity destruction, and so on, is not conducive to the verification record management. To this end, the verification agency and quality supervision department must make corresponding management measures, that is, the former should clearly specify the work responsibilities of the verification personnel in an orderly arrangement for the verification; the latter needs to establish standardized verification standards to ensure that the staff perform the verification work according to the standard regulations. It is also necessary to clearly record the verification data and implement the document labeling work in a concrete manner to avoid the phenomenon of missing records again [3].

3 Conclusion

In summary, the specific technical problems that arise during the verification of weighing instruments are often resolved by clarifying the scope of the verification, innovating the inspection ideas, optimizing the verification structure, and paying attention to the verification records. This can not only optimize the verification results, but also improve the weighing instrument. Measurement accuracy. This has a positive effect on the improvement of the utilization of weighing instruments.

references

[1] Wang Xianhong, Jin Junling. The technical problems and solutions in weighing measurement verification [J]. Henan Science and Technology, 2017, 03:69-70.

[2] Li Tao. Analysis of several problems in the verification of weighing instruments and the influencing factors of accuracy [J]. New technologies and products of China, 2015, 23:66.

[3] Zhai Jianjun. Analysis of several problems in the examination of weighing instruments [J]. Science and Technology Outlook, 2016, 36:301.

Author: Bo Yaqing Source: China Scientific & Technical 2017 16