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低流速仪是我室根据苏联X-6型低流速仪的原理,于1953年试制成功的。几年来,经有关单位实践和我们不断的改进,1964年所试制的低流速仪,在结构与性能上,都逐步得到提高。如旋桨叶片的直径在2厘米时,其起动流速仅为0.5厘米/秒左右;另方面只要记录器允许时,又可测较高的流速。现在我们所使用的记录器至少可测最高流速为30厘米/秒。目前试制的低流速仪,包括三个主要部分:旋桨叶片和支架、放大器及记录器。本文是叙述旋浆部分。
Low velocity meter is my room according to the Soviet Union X-6 low-velocity meter principle, in 1953 trial success. Over the past few years, after the practice of the relevant units and our continuous improvement, the low flow rate meter developed in 1964 has been gradually improved in structure and performance. If the propeller blade diameter of 2 cm, the starting flow rate of only 0.5 cm / sec or so; the other as long as the recorder allows, but also measured higher flow rate. Now we use the recorder can measure at least the highest flow rate of 30 cm / sec. The current trial low flow meter, including three main parts: propeller blades and brackets, amplifiers and recorders. This article describes the propeller section.