Aviation baggage scale is an important part of the airport aviation, is to drive the development of science and technology, promote the development of the national economy and social development of strategic industries, aviation baggage scale development capacity is to measure a country's level of science and technology and the level of industry is an important symbol. During the Eleventh Five-Year Plan period, China has included the development of large passengers in China's medium- and long-term development plan. Explore and implement the aviation baggage scale project in the measurement of security, so that it is in the development of aviation baggage weighing system to play the greatest efficacy, but also to ensure the success or failure of the aviation management and business necessary to ensure the technical security.

1 aviation baggage scale on the demand for measurement technology

From the point of view of the world's aviation powerhouse future aviation baggage scale development, seeks to enhance management security from improving the advancement of aviation management system reliability, data monitoring system, electric shock protection, enhancement of the cloud data system and system monitoring; from the reduction of man-made operations, reduce equipment maintenance costs, reduce the cost of equipment and maintenance and repair costs, etc. to improve the economy of the aviation baggage scale; from the reduction of the push system noise, reduce emissions pollution, energy optimization and other aspects of strengthening environmental protection; in addition, also from the noise reduction and system design and other aspects of improving the stability of aviation luggage scales.

In order to realize the leapfrog development of aviation baggage scales in China, we need to focus on breakthroughs in technical areas including: efficient aerodynamic design technology and key data management technology, advanced materials and structural technology, maintenance reduction, noise reduction technology, high safety and reliability design technology, operation system technology and so on. Therefore, the technical needs related to the advanced measurement technology should be considered mainly from the following aspects:

1.1 Technology optimization needs

Our future development of aviation baggage scales whether from the equipment efficiency, structural efficiency, promote efficiency, equipment reliability and maintainability, or from the new technology, new technology and so on should be more advanced, better meet the development needs of the times; aviation baggage scales mainly emphasize the use of the system's safety, economy and comfort, the key to have the aviation management certification, and therefore the direction of the research is mainly to the safe, efficient, reliable, stable, low-cost and low pollution direction. Therefore, the research direction mainly focuses on safety, high efficiency, reliability, stability, low cost and low pollution. However, we lack the experience and technology accumulation of developing aviation baggage scales, so we must make use of the test technology, through a large number of tests and data accumulation, analysis, comparison and evaluation, to obtain accurate and reliable test data and realize the optimization of the technology. The accuracy and reliability of test data must be guaranteed by measurement technology.

1.2 Technical verification needs

The development and production process of aviation baggage scale needs to go through countless tests, as small as the parts test and the motor conveyor test. For example, in the measurement of performance design, in order to verify the design effect of weighing, weighing impact test technology and transmission test technology must be verified, through the analysis of valid comparable test data for the design to find a more ideal measurement program. The validity of the test data is not only related to the test program and the means of the metrology management test technique and the data management test technique, but also to the accuracy, reliability and traceability of the measured test parameters (e.g. speed control, metering, control, force value, etc.).

1.3 Process Supervision Requirements

In the whole process of aviation baggage scale project development, production, testing and service, control points need to be set up in accordance with technical specifications, standards and process requirements, and measurements need to be carried out through testing equipment to ensure optimal control of process quality. In addition, effective measurement is also required to ensure that the project's cost accounting, resource control, foreign trade settlement and other data are accurate and reliable. Therefore, measurement plays a very important role in ensuring the quality of the production process, in cost accounting, saving development resources, reducing raw material and energy consumption and improving the production process.

Measurement technology as the basis and guarantee of the test technology, not only is the support of the test technology, but also modernized production to comprehensively improve the quality and enhance the technical core capacity of the main means. Therefore, measurement in the technical level is the study of measurement of the value of accurate reproduction and its engineering methods. Measurement in the management, in order to achieve the purpose of measurement technology, must implement effective process control for management, its main content:

(1) Define the measurement process, the control requirements of the measurement process with process flow documents and measurement management program documents to be clearly defined;

(2) According to the process flow documents and measurement management program documents required to complete the measurement process;

(3) Assessment of the measurement process to complete the rationality and effectiveness.

With the rapid development of high-tech in the 21st century, has greatly affected the existing measurement technology. In order to continue to meet the aviation science and technology progress on the measurement of the requirements to adapt to the characteristics of aviation high-tech development, measurement technology must be synchronized with the development of aviation science and technology progress, and there should be a certain degree of forward-looking and predictive. Measurement technology can not only meet the needs of the current development, but also to meet the needs of a long period of development in the future.

2 future aviation baggage scale development process on the measurement of demand and its characteristics

China's future aviation baggage scale development process needs to focus on breakthroughs in the technical field, including: transmission design, impact test, advanced materials and structures, reduce emissions pollution, noise reduction, high security and reliability design, aviation management systems and so on. In view of the above design requirements, its measurement needs and its characteristics are mainly manifested in the design stage, development stage, production stage, aviation stage and service stage.

2.1 Design phase

In order to seek for the best transmission, structure, material, motor, aviation management, environmental protection and other design solutions, it is required to verify the test results under different environmental conditions, and provide comparable and reference value test data. Its measurement requirements are characterized by:

(1) Simulate the simulated environmental conditions required by the overall project design;

(2) Most of the tests have not been carried out previously, or there is no accumulation of original test data in this regard;

(3) As the overall design of the project adopts advanced technologies and concepts, the test is required to adopt different methods from the previous ones, and advanced measurement equipment must be used (improvement of measurement range and accuracy requirements, expansion of measurement parameters, dynamic testing, special testing and calibration equipment, etc.) to verify;

(4) Management of the capital requirements of the investment is large;

(5) Improvement in the measurement range and accuracy requirements of measurement equipment, and the resulting increased difficulty in its traceability.

2.2 Development stage

Verify or determine whether the design can achieve the specified technical indicators, determine the feasibility of engineering realization, reduce design defects, improve the design. Its measurement requirements are characterized by:

(1) the need for a large number of repetitive test work (parts, components, the whole machine, etc.);

(2) With the application of high and new technology, various types of sensors (rotation, pressure, weighing, load, acceleration ... etc.) to miniature, high accuracy, intelligence, etc., the calibration of the dynamic characteristics of the sensor, a large number of calibration of testing equipment and a series of metrological needs will increase dramatically;

(3) the urgent need for a variety of comprehensive testing and its specialized equipment (including on-site use), comprehensive testing and its specialized equipment development weekly.

Period will become a bottleneck hindering the smooth progress of the test work;

(4) Traceability of various testing and calibration equipment and its supervision and management;

(5) Testing and evaluation of various dynamic parameters (pressure, force, transmission, control ......).

2.3 Production Stage

The whole process from raw materials into the warehouse to semi-finished products and finished products to implement standardized production. Tested raw materials, semi-finished products, finished products to meet the specified technical requirements of the indicators, the whole process of implementation of strict supervision and management. The characteristics of its measurement requirements:

(1) the establishment of a complete, aviation baggage weighing system test, testing process documents and measurement management program documents;

(2) Provide fast and convenient online testing and testing equipment and technology;

(3) The assurance of measurement accuracy of digital processing equipment and its equipment traceability;

(4) automation, intelligence, multi-parameter testing equipment demand increases, the accuracy of the testing equipment should be higher than the accuracy of the measured parameters, and its measurement uncertainty ratio should be in line with the requirements of 4:1 or the requirements set out in the relevant technical documents;

(5) All testing equipment and calibration equipment should be calibrated according to the specified cycle and used within the validity period, and their measurement uncertainty ratios should meet the requirements of 4:1 or the requirements specified in the relevant technical documents;

(6) Specialized testing equipment should be prepared with calibration methods and should be calibrated periodically or according to a calibration plan;

(7) Implementation of an effective monitoring system;

(8) Establish a measurement information management system.

2.4 Equipment stage

Through the aviation luggage scale test and its test data acquisition to meet the requirements of the relevant aviation regulations and its technical specifications, the characteristics of its measurement requirements:

(1) Domestic and foreign regulatory requirements related to aviation;

(2) Requirements of the relevant aviation regulations and their technical specifications, and to grasp the changes in the requirements of the aviation regulations and their technical specifications;

(3) Modify the design, improve the test, and adjust the process according to the requirements of aviation regulations and their technical specifications;

(4) Improve the acceptance system and strengthen the quality control of suppliers and collaborators.

2.5 Service stage

Implementation of maintenance and service to ensure that in the aviation baggage scale management system is used normally. Its measurement requirements are characterized by:

(1) weighing equipment: the measurement equipment (instruments) to be regularly calibrated and maintenance (replacement), measurement equipment (instruments) calibration cycle based on the design requirements to determine;

(2) Transmission equipment: the measurement equipment (instruments) to be regularly calibrated and maintained (replacement), measurement equipment (instruments) calibration cycle based on the design requirements or the use of engineers to determine the assessment;

(3) Management system of measurement equipment (instrument) calibration manual;

(4) the use of units to carry out the training of testing personnel.

3 Effective measures to establish measurement guarantee system

3.1 The idea of measurement guarantee

Measurement guarantee refers to a series of management and technical activities to achieve accurate and consistent measurement values, to achieve measurement traceability and process control. Exploring and implementing the idea of measurement guarantee of aviation baggage weighing system can better fulfill the mission given to us by the state.

From the technical point of view, the development direction of aviation baggage weighing is: more passenger baggage volume, high security, obvious economy and good stability. From the point of view of organizational structure and operation mode, due to the fierce market competition and the high technology, high investment and high risk of aviation weighing, it is bound to become more and more nationalized and grouped. From the point of view of model development, more will rely on the continuous improvement of existing models, modification, and even the development of a multi-purpose aircraft. China's aviation management has been along the civil management system, the aviation measurement of security has its own complete set of models, just in the form of modern aviation development has not kept up with the needs of the development, so to develop aviation baggage scales must be a change in mindset, so that the "measurement of the first" into practice, make full use of the original measurement of infrastructure and means, develop a new type of measurement of the management mode, the development of a new type of security, the management mode, the development of a new type of baggage scales. The development of new measurement security management mode, so that the aviation measurement security system, whether in commercial or civilian type can really play a role.

3.2 Establishment of measurement security system

(1) Starting point planning

From the aviation baggage scale project and the overall design demonstration, from the system requires that the design units and departments should be tested, measurement technology and measurement equipment measurement requirements. From the policy and decision-making to ensure that the project research and development measurement guarantee synchronization, from the resources to meet the needs of measurement first. Technically, the design unit must do a good job in the project measurement guarantee demonstration and planning work.

(2) guarantee focus

Measurement is a long-term, large investment in the technical basis, in the existing technical basis and technical capabilities, we must have something to do, something not to do. Some for those who have a definite impact on the design decision-making, the process of quality control has a decisive impact on the process, and we are obviously insufficient means of measurement, should be established as soon as possible as soon as possible to ensure that the appropriate means of testing and measurement, to ensure that in advance, to ensure that the focus. Something is not to change the past kind of low-level technical conditions of repeated construction.

(3) system guarantee

The establishment of the project measurement guarantee system, the "measurement first" of the guiding ideology into the aviation baggage scale project in each link to ensure that the aviation baggage scale project from the design, development, production and use of each process to meet the required quality requirements.

(4) Strengthen supervision

Measurement is a means of quality control, quality assurance is the ultimate goal of measurement. Measurement management is an important part of the quality management system, is the standardized management of the whole process of measurement technology work. In order to ensure and improve the quality of aviation luggage scale project, on the one hand, we should strengthen the technical level of the test, on the other hand, we should strengthen the project measurement management. By monitoring all kinds of tests and production process, to ensure the quality of the project. Measurement in the form of calibration, calibration, testing, testing and comprehensive system status review, into the project design, development, production and use of the whole process, so as to form a complete measurement supervision system.

(5) Measurement guarantee in after-sales service

Aviation baggage scale control system on the safety, reliability and maintainability of the requirements of the special characteristics of the after-sales service in the measurement of the guarantee of the merits of the aviation management system determines the life of the system and its life cycle. Therefore, the measurement guarantee in after-sales service is also the focus of our attention.

4 Conclusion

To sum up, aviation baggage scale to safety, economy, stability and environmental protection as the core to overcome the key technologies, at the same time, in the early stage of the project, we comprehensively plan for the development of measurement and protection system, so that it can adapt to the aviation baggage scale and synchronize with its development, so that the measurement of technology in the development of civil aircraft to play its due role.