For the study of field wind erosion and the design and evaluation of wind erosion control techniques, detailed observations of soil partivle transport and vertical destribution of eroded soil partiles are needed. The objectives of this study were: 1) To describe one device for soil transport partivle measurement, Le the BSNE sediment catcher, and 2) To swath height in esteem Isfahan. The BSNE sediment catcher is a wind erosion sampler that traps eroded material at seven heights of 0.24, 0.60, 1.08,2.00,3.00, and 4.00 m above the soil surface. Each trap consists of a steel container with an inlet and outet, mounted on a wind vane that rotates about a central pole. Before using the sampler in the field, it was tested and calibrated in the wind tunnel. The results showed that the average trapping efficiency with speeds ranging from 5.2 to 7.2 m sec-1 for 4 different 0.44 to 0. 68. However the trapping efficiency depended on wind speed, particle size distridetion, particle density and type of sediment. The sampler had the lowest efficiency for particles < 44µm.A BSNE sediment catcher was installed in Babaii Air Base. After a sampling perion, the sediment in each trap was collected and weighed. The trapped materials were a mixture of salutation and suspension. Vertical distribueroded sediment that the amount of soil colleted decreased with increased height and the percent age of fine particles(<63µm) increased with height. The amount of trapped materials for each cm2 frontal intake with increased height were 12.00,3.42, 1.44, 1.56,0.75,0.21, and 0.39 g cm-2,respecitively, for the one sampling period.