Portable measuring instrument for measuring starting wind by wind sensor

The utility model relates to a portable measuring instrument for measuring the starting wind of a wind sensor, which is composed of a base, an upper cover, a direct current fan, a guide sleeve and a wind meter. The instrument is made into a portable circular body, wherein the lower part of which is provided with a wind inlet which is provided with the direct current fan and the inner part of which is provided with the guide sleeve which is provided with an inclined through groove with same direction at the upper part. The upper cover is provided with a wind outlet and the wind meter is arranged in the wind outlet or the wind meter is arranged on the base. When the instrument works, the wind sensor is arranged in the base and a direct current electric motor starts up, forming rotary air current through the inclined groove of the guide sleeve to drive the wind sensor to rotate. The starting wind of the wind sensor can be measured through the wind meter. The instrument has the characteristics of simple structure, small volume, on-site use, high precision, etc.