產(chǎn)品簡(jiǎn)介
詳細(xì)介紹
TE138
Line pairs per cm(1-28.5 LP/cm ? set of 10 pcs.)
The TE138 is designed for resolution
measurements. Frequencies from 1-28.5
line pairs per centimeter are printed on a
white background. The patterns are ordered
clockwise in decreasing resolution on the
chart.