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  • Non computerized stations for testing NVDs / NVT


Article: 00249803

Non computerized stations for testing NVDs / NVT

Night vision devices present on the market can be divided into two basic groups: A) short range night visions devices (binocular goggles, monocular goggles, monooculars) of wide field of view about 40º; B) long range night vision devices (night vision sights/binoculars of narrow field of view below about 12º). Short range night vision devices (goggles/monoculars) are the most numerous group (over 80% of the market). NVT station is a compact, user friendly test station optimized for testing night vision goggles/monoculars. The station projects images of some standard targets into direction of tested night vision device fixed on the upper wall and looking down. The user can control light intensity and type of target to be projected using two knobs. The tested NVD generates distorted copies of the projected standard images. Images generated by tested NVD are evaluated by human observer or with help of some measuring tools (luminance probe) and important parameters of night vision devices are determined. Both acceptance tests and maintenance tests can be carried out. The test procedures used by the NVT station are based on recommendations of the MIL series military standards. Options: 1. Measurement of resolution of image intensifier tubes. RM resolution module and MM microscope are delivered. Code: additional letter R. 2. Measurement of luminance gain of image intensifier tubes. LG module is delivered. Code: additional letter G.


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