Ink Jet Metrology: New Developments at NIST to Produce Test Materials for Security Applications
Abstract: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: 2011-01-01
For more than 30 years, IS&T's series of digital printing conferences have been the leading forum for discussion of advances and new directions in 2D and 3D printing technologies. A comprehensive, industry-wide conference that brings together industry and academia, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems?particularly those involved with additive manufacturing and fabrication?including bio-printing, printed electronics, page-wide, drop-on-demand, desktop and continuous ink jet, toner-based systems, and production digital printing, as well as the engineering capability, optimization, and science involved in these fields. In 2016, the conference changed its name formally to Printing for Fabrication to better reflect the content of the meeting and the evolving technology of printing.
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