Volume 66 Issue 2
Feb.  2022
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ZHAO Yumin, LIANG Yue, LI Yi, WANG Tianyu, WANG Yan, GAO Jinsheng, ZHANG Jialiang. Research on 4000 Cycles of Variable Temperature Test Based on Flow Sensor[J]. Metrology Science and Technology, 2022, 66(2): 65-68. doi: 10.12338/j.issn.2096-9015.2019.0430
Citation: ZHAO Yumin, LIANG Yue, LI Yi, WANG Tianyu, WANG Yan, GAO Jinsheng, ZHANG Jialiang. Research on 4000 Cycles of Variable Temperature Test Based on Flow Sensor[J]. Metrology Science and Technology, 2022, 66(2): 65-68. doi: 10.12338/j.issn.2096-9015.2019.0430

Research on 4000 Cycles of Variable Temperature Test Based on Flow Sensor

doi: 10.12338/j.issn.2096-9015.2019.0430
  • Available Online: 2021-12-14
  • Publish Date: 2022-02-18
  • As an important measuring instrument in the trade settlement of heat measurement, the heat meter must ensure the accuracy and long-term reliability. Domestic heat meters have been put into the market with frequent quality problems, and some of them have been replaced by imported products. Although there are many problems in the use of domestic meters, they are ultimately attributed to poor long-term stability. This is reflected in the durability test, which is also the biggest and most important difference between domestic heat meters and European product standards in terms of technical requirements. This test establishes a study based on 4000 cycles of variable temperature test for domestic heat meters and compares it with the 2400 h+300 h test method, so as to realize the improvement and continuation of durability evaluation of domestic heat meter. It is the first time in China to realize comprehensive technical evaluation of heat meters under long-term application laboratory conditions, which contributes to improving the level of heat meter product quality in China, promoting the transformation and upgrading of the heat meter industry, and facilitating the heat supply metering reform.
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