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Printed Standards for Stand-off Detection

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Sensors & Electronics Technology

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Chemical Printing, Chemicals, Explosives, Optical Standards, Surface Deposition


Accurately collected and validated signatures are critical for evaluating the performance of existing sensors and predicting the performance of future detection capabilities. An assortment of reference materials is also needed to allow the requisite flexibility to react to the diverse and evolving range of threats encountered. Therefore, the development and adoption of standardized methods for the evaluation of stand-off optical systems for explosive and chemical detection is needed. Existing preparation methods of reference samples, such as drop-and-dry (drop casting) methods, present a range of variability and reproducibility issues, including inhomogeneous sample coverage and material waste. Drop-on-demand and inkjet printing technology has become a promising method of producing standardized chemically contaminated test materials with high precision, accuracy, scalability, and flexibility to allow for the inexpensive, high-throughput production. This Task Group (TG) is continuation of the work from the NATO SET-ET-092 on “Inkjet Printed Standards for Optical Measurements”.


The objective of this TG is to develop and recommend to NATO a reference standard methodology (or methodologies) for fabricating surface standards using printing technologies in a controlled, uniform and quantifiable fashion for the evaluation of stand-off active and passive optical systems.


• Review current printing capabilities and define the limitations of each deposition method. • Review Quality Assurance/Quality Control (QA/QC) method development for printing performance validation • Benchmark methods of chemical deposition by exchange of samples amongst participating nations. • Recommend standard deposition methods for various stand-off detection technologies (active/passive). Point detection technologies will also be considered. • Final demonstration field trial.

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