Fatigue test measurement method
A measurement method and fatigue test technology, which are used in measurement devices, test material ductility, and use repetitive force/pulse force to test material strength, etc., can solve the problem of high cost, and achieve the guarantee of validity, data volume reduction, cost reduced effect
Active Publication Date: 2018-07-06
深圳市弗赛特科技股份有限公司
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Problems solved by technology
However, this measurement method will generate a large amount of measurement data, and most of the data are similar data, and the cost of storing these data is extremely high
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Embodiment Construction
[0017] In order to fully understand the technical content of the present invention, the technical solution of the present invention will be further introduced and illustrated below in conjunction with specific embodiments.
[0018] The fatigue test measurement method of the embodiment of the present invention includes high-precision measurement and low-precision measurement that are alternately repeated. The data obtained by high-precision measurement is stored in the database, and the data of low-precision measurement is dynamically stored in the cache. And the sampling frequency of high-precision measurement is higher than that of low-precision measurement. High-precision measurement is a high-density measurement method that uses multiple iterations to obtain accurate data for the size of the specimen, which can accurately describe the law of dimensional changes. The low-precision measurement is the data obtained by directly measuring the size of the specimen at one time in th...
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The invention relates to a fatigue test measurement method, which comprises high-precision measurement and low-precision measurement, wherein the high-precision measurement and the low-precision measurement are alternately and repeatedly performed, the data obtained by the high-precision measurement is stored in a database, the data obtained by the low-precision measurement is dynamically stored in a cache, and the sampling frequency of the high-precision measurement is higher than the sampling frequency of the low-precision measurement. According to the present invention, when the high-precision measurement is performed, the force applied on the specimen is periodically-changed pressure, the parameters of the test point of the specimen are continuously measured, and the measured data is stored in the database; when the low-precision measurement is performed, the force applied on the specimen is periodically-changed pressure, the parameters of the test point of the specimen are continuously measured, and the measured data is stored in the cache through the dynamic stack storage method; and the high-precision measurement data is stored in the database, and the low-precision measurement data is only subjected to caching, such that the amount of the data to be stored during the measurement is reduced so as to reduce the cost, and the measurement cannot be interrupted so as to ensure the effectiveness of the measured data.
Description
Technical field [0001] The invention relates to pipeline fatigue testing technology, in particular to a fatigue test measurement method. Background technique [0002] General pipeline performance tests require fatigue testing, especially for pipelines used in relatively harsh working environments. Generally, fatigue test is to apply wave cycle force or pulse cycle force to the pipeline. As the fatigue process is slow, a long time fatigue test is required to determine the creep process of the test specimen. However, this kind of measurement method will generate a large amount of measurement data, and most of the data are similar data, so the cost of storing these data is extremely high. In order to reduce the amount of data and make the measurement data representative and analytical value, a method of reducing the amount of data without interruption is needed. Summary of the invention [0003] The purpose of the present invention is to provide a fatigue test measurement method in...
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IPC IPC(8): G01N3/32G01N3/28
CPCG01N3/28G01N3/32G01N2203/0005G01N2203/0073
Inventor 何建辉陈东时张燕舞
Owner 深圳市弗赛特科技股份有限公司