The invention discloses a high-sensitivity optical-type
airspeed measuring device which comprises an
airspeed pipe, a shell body and an opening sylphon. An optical curve sensing unit is contained inside the shell body, wherein the optical curve sensing unit comprises a curve-
type test channel and a measuring unit, the measuring unit is connected with a disposing unit, and the disposing unit is connected with a display unit. The curve-
type test channel comprises a curve-type support, multiple side A transformation teeth and multiple side B transformation teeth. The multiple side A transformation teeth and the multiple side B transformation teeth are arranged in a crossing mode, and the curve-
type test channel which is provided for one or more
signal optical fibers passing is formed among heads of the multiple side A transformation teeth and the multiple side B transformation teeth. The multiple side A transformation teeth and the multiple side B transformation teeth are arranged on two sides of the
signal optical fibers correspondingly. A movable point of the opening sylphon is fixedly connected with one end of the curve-type support, and the other end of the curve-type support is fixed on the inner wall of the shell body. The high-sensitivity optical-type
airspeed measuring device is simple in structure, reasonable in design, convenient to process and manufacture, low in cost and flexible in using manner, high in sensitivity and good in using effect.