Ink Jet Metrology: New Developments at NIST to Produce Test Materials for Security Applications

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Reliable measurements and deposition control are critical to the success of ink jet applications. We report gravimetric and optical measurements of microdroplets that enable high-accuracy drop-on-demand (DOD) ink jet printing, which has been applied to the production of materials for testing trace and stand-off explosives detectors deployed at airports and other locations. The imprecision of solute mass deposition is typically less than 0.4 % while the combined standard uncertainty is less than 1 %. Applications include the production of trace explosives reference swipes, the manufacture of standard microspheres by drying droplets either in flight or on superhydrophobic surfaces, and the generation of trace explosives vapors. The gravimetric measurement capabilities of the system have also enabled testing and calibration of grayscale thresholding routines used in optical micro-dimensional analysis of droplets in flight.

Document Type: Research Article

Publication date: January 1, 2011

More about this publication?
  • For more than 25 years, NIP has been the leading forum for discussion of advances and new directions in non-impact and digital printing technologies. A comprehensive, industry-wide conference, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems, including drop-on-demand ink jet, wide format ink jet, desktop and continuous ink jet, toner-based electrophotographic printers, production digital printing systems, and thermal printing systems, as well as the engineering capability, optimization, and science involved in these fields.

    Since 2005, NIP has been held in conjunction with the Digital Fabrication Conference.

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