【摘要】 本文描述了一个双热线结构的风速议,它由绝缘圆棒和贴在其对称两侧的铂丝组成,其特点是坚固,便于清洗,性能长期稳定。风洞试验结果表明,这种传感头的测量精度优于传统的单丝风速探头,在0～20m/s的单量程范围内,测量误差小于0.1m/s。更多还原

【Abstract】 A new anemometer with two hot wires is described. It consists of two platinum wires which are fixed at the opposite sides of a small cylindrical insulator rod. As a matter of fact, the sensor is tough and solid, easy to clean, and has a long term stability. Experimental results coming from the measures made in the wind tunnel demonstrate that the new sensor results in a more accurate measurement than the traditional single hot wire probes. Its measurement error is less than 0.1 m/s within the range of 0 - 20m/s.更多还原