三恩時(shí)棋盤(pán)分辨率測(cè)試卡幾何形狀畸變一致性

測(cè)試卡說(shuō)明

YE06A測(cè)試卡被設(shè)計(jì)用來(lái)檢查幾何和分辨率。
數(shù)據(jù)
測(cè)試卡類(lèi)似于一個(gè)由13×18的黑色和白色正方形區(qū)域以及由矩形區(qū)域在對(duì)應(yīng)于電子測(cè)試生成器14/19網(wǎng)格光柵線(xiàn)邊緣所包圍的棋盤(pán)。（整個(gè)圖卡發(fā)生器的水平網(wǎng)格線(xiàn)被劃分為相應(yīng)于42行）。
九個(gè)扇形星內(nèi)圓線(xiàn)條標(biāo)出625線(xiàn)結(jié)構(gòu)。較大的圓形線(xiàn)條標(biāo)出312線(xiàn)的結(jié)構(gòu)。橫向?qū)?yīng)的垂直線(xiàn)光柵分布著33個(gè)白格。它們對(duì)應(yīng)于2，3.5和5MHz頻率柵格。
應(yīng)用
•檢查幾何形狀和光柵的一致性，如果有必要用電子生成網(wǎng)格的裝置。
•檢查信號(hào)生成的均勻性。
•檢查分辨率及其在圖像區(qū)域分布。
•檢查后焦距。

The YE06A test chart is designed for checking geometry and resolution.
DATA
Similar to a chessboard the test chart is composed of 13 x 18 black and white square fields which are surrounded by rectangular at the edges that correspond to the 14/19 grid raster lines of electronic test generators. (The division of the horizontal grid lines of these generators corresponds to 42 lines per complete picture.)
The inner circular lines of the nine sector stars mark a 625-line structure. The larger circular lines mark a structure of 312 lines. Horizontal resp. vertical line rasters are arranged in 33 white fields. They correspond to frequency raster of 2, 3.5 and 5 MHz.
UTILIZATION
•Checking geometry and the congruency of raster, by means of an electronically generated grid, if necessary
•Checking the uniformity of the signal generation.
•Checking resolution and its distribution over the picture area.
•Checking back focal distance. 

三恩時(shí)棋盤(pán)分辨率測(cè)試卡幾何形狀畸變一致性