排序方式: 共有19条查询结果,搜索用时 328 毫秒
1.
2.
3.
4.
A novel method to measure the temperature on the surface of micro-hotplate was presented. The tiny fiber probe and the optical power meter were employed to measure the sample radialization power. By means of comparing the relationship between the radialization power and the temperature, sample surface temperature can be discerned accurately. Such an approach has provided more accuracy than traditional temperature measurements. The experimental result based on this method is quite similar to that of simulation by the finite element analysis (FEA) software of Ansys in theory. This measurement is very useful for measuring temperature for these micro samples prone to be untouchable. 相似文献
5.
7.
8.
分别采用水热和静电纺丝法制备出一维ZnO、TiO_2、SnO_2纳米材料,并对其气、湿敏特性进行了研究.结果表明一维纳米材料具有非常快的响应恢复速度:水热法制备的花状ZnO纳米棒束由11%RH到95%RH的响应时间约为5 s,恢复时间约为10 s;静电纺丝法制备的掺杂KCl的TiO_2纳米纤维由11%RH到95%RH的响应时间为3 s,恢复时间约为4 s;静电纺丝法制备的SnO_2纳米纤维对50 ppm(1 ppm=10-6)甲苯气体的响应时间仅为1 s,恢复时间约为5 s. 相似文献
9.
分子热力学理论模型—氩模型与液体粘度的理论计算 总被引:3,自引:0,他引:3
应用张克武气体氩模型理论微分方程,导出液体粘度理论方程和“正烷烃沸点下的粘度值相同”的定理。本法以40种不同构型258种无机、有机、强缔合性的醇、酸、二醇及非极性纯质1528个实验数据检验,平均误差1.85%。其精度比著名的Van Velxen et al.法高倍以上达到实验允许误差范围内。解决了近百年来在无法精确计算的液体粘度这个技术科学上的关键难题。有重大理论意义和重要应用价值。 相似文献
10.