摘要
现代电子工业,医药卫生等行业的发展,以及人民生活水平的提高,促进了空气调节技术的迅速发展和广泛应用。由此,空调房间气流的测试,评价成为国内外学者关注的焦点。国外房间气流的测试仪器已被先进的具有数据分析功能的恒温式风速仪所替代,而国内仍在沿用指针式恒流仪表。本文通过对国内指针式仪表的数字化的研制过程与国外仪表进行分析比较,证实了由于仪表电路的差异,国内仪表存不容忽视的系统误差,精密度较低。气流评价也会因此导致错误结论。最后本文对国内空调界气流测试水平进行了评价,并提出室内微风速测量所必须具备的条件。
The overseas instruments for testing the air flow in a room have been replaced by advanced anemometers with constant temperature which have the function of data analysis. But in our country, we still use the instruments with constant currents and using pointers. This article tells about the process of developing our own digital, instruments, comparing them with the structure of electric circuit with in the overseas instruments.It shows that because of the differences among the circuits, there is systematic error in our domestic instruments which allows of no neglect and it will lead to the wrong conclusion about the air flow evaluation.
出处
《北京建筑工程学院学报》
1996年第3期60-65,共6页
Journal of Beijing Institute of Civil Engineering and Architecture
关键词
房间气流
恒流风速仪
气流速度
测量精度
irdoor airflow
constant current anemometer
constant temperature anemometer
digital constant aremommeter.
