| 摘要 |
PROBLEM TO BE SOLVED: To provide a windbreak screen capable of suppressing wind noise without affecting the extraction of sound to be measured. SOLUTION: In the windbreak screen 1, a coarse outer side net body 3 is attached on the outer side of a wall body 2 made of urethane foam in a spherical shape whose diameter (outer diameter) is 20 cm to 40 cm and thickness is 5 cm to 10 cm, and a fine inner side net body 4 is attached on the inner side of the wall body 2. COPYRIGHT: (C)2010,JPO&INPIT
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