Detection, recognition, identification, and determination of a situation is one of the paramount attributes of today’s military. Sighting systems of advance optical, mechanical and digital imaging systems make this possible. Armored and unarmored mobile systems such as tanks, HMMWV (aka HUMVEE) as well as infantry and snipers all need unique and specific imaging sights in order to accomplish their designed function. At Picatinny Arsenal in New Jersey the Armament Research Development & Engineering Center or ARDEC is responsible to ensure the latest technology in optics is in the hands of the Army. To assure the right design and capabilities meet the right users in the right environment, quantitative and qualitative design, development, and continuous testing and evaluation is necessary. In the Small Arms Fire Control and Optical Technologies Division of ARDEC the optics metrology laboratory is using a wide array of nondestructive tests (NDT) and analysis on such systems. The methods used are not always a commonly applied tactic such that the common world would typically used. This paper provides a brief overview on the competencies in NDT that are applied to military optics and imaging systems, including passive direct view optics (DVO), infrared (IR) or thermal detection systems and night vision devices. The methods that will be briefly discussed include visual, laser, thermographic, immersion or leak testing, radiographic testing, and pre/post testing after destructive examination.
1. Zemax LLC (2016). Optics Studio (version 16) [Software]. Available from http://www.zemax.com/.
2. ISO 12233, Photography-Electronic Still Picture Imaging-Resolution and Spatial Frequency Responses, International Standards Organization, Geneva, Switzerland (2014).
3. ISO 15529, Optics and Photonic-Optical Transfer Function-Principles of Measurement of Modulation Transfer Function (MTF) of Sampled Imaging Systems, International Standards Organization, Geneva, Switzerland (2010).
4. Google image retrieved from: http://www.trioptics.com/fileadmin/_processed_/csm_e-A-perfect-grid- pattern-is-imaged-through-the-sample-into-the-image-plane_55bc7c3930.jpg (2017).
5. Google image retrieved from http://harvestimaging.com/blog/wp-content/uploads/2014/04/next_blog_1.jpg (2014).
6. Google image retrieved from http://www.outdoorsupplies.co.nz/AllReticlesflattenedLgr.jpg (2017).
7. Google image retrieved from: https://www.hixmagazine.com/wp-content/uploads/2015/02/red-dot-reticles- at-night.jpg (2015).
8. ANSI 136.1, Safe Use of Lasers, American National Standards Institute, Toledo, OH (1986).
9. Google image retrieved from http://www.thefirearmblog.com/blog/wp-content/uploads/2017/02/anpsq-23. png (2017).
10. ISO 11146, Lasers and laser-related equipment -- Test methods for laser beam widths, divergence angles and beam propagation ratios International Standards Organization, Geneva, Switzerland (2005).
11. Google image retrieved from http://lghttp.42294.nexcesscdn.net/8016B67/nvg/media/catalog/product/0/1/01_3 4.jpg (2017).
12. Google image retrieved from https://image.sportsmansguide.com/adimgs/l/2/216976i_ts.jpg (2017).
13. MIL-STD-810g, Department of Defense Test Method Standard-Environmental Engineering Considerations and Laboratory Tests, (2014).
10 Page Views
0 PDF Downloads
0 Facebook Shares