多频栅格畸变测试板

• 可校正成像系统
• 不同的视场角有着不同的空间频率
• 本产品的精度附带NIST认证

尽管在测量应用方面畸变会带来一定的麻烦，但是您必须清楚事实上关于被测物体的各种信息并没有丢失，仅仅是物体所成的像放错了位置而已。采 用本测试卡，您可以很方便的测量出畸变当量和精度。使用斑点（或质心）分析测量软件就可对斑点中心定位。栅格图案按比例缩小，因此一个图案可用在各种镜头 和视场。包装上附NIST跟踪认证，根据标准MIL-STD-45662A。

The fixed frequency targets are available in a variety of dot size/spacing combinations to complement our full line of imaging lenses. Select a target to cover your entire field of view while maintaining an adequate number of dots across the field, and an adequate number of pixels per dot. The 3 or 5 grids on the multi-frequency target scale down so that one target can be used for a variety of lenses and fields of view. Both types of targets are available in a chrome on glass or chrome on opal target to accommodate transmission or reflection based on applications respectively. Included in the packaging is a serialized NIST Traceable Certificate of Accuracy per MILSTD-45662A.