As an important index to the terahertz scattering ability of the target, terahertz target scattering properties appears particularly important in the research of terahertz technology. This paper improves the controlling software which was designed by our group to measure terahertz target scattering properties. The improved software will remind user to change attenuation slice in the process of automatic measurement. The button of pause/continue is added so the laser can be adjusted in the process of automatic measurement. The button of rotation direction is added so the rotation direction of target can be controlled. We have done the terahertz target scattering properties measurement experiment on the rectangular aluminum plates by this improved software.
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