datum temperature
3.To conduct drop weight tear test to DWTT specimen for each kind of notch type of grade X70 pipeline steel under different test temperature conditions and analyzes the related datum during test.
4.performance ,such as Front Launching Infrared System, medical thermal imaging system and so on, whose modulate transfer function (MTF) and Noise equivalent temperature difference (NETD) of the data table and graph is within 10% ? 20% error than the outdoors experimentation?s datum. It basically obtained the thesis demand to replace the outdoors experiments and meet the requirement for using and second researching.
