In-situ monitoring of powder density using terahertz pulsed imaging

Daniel Markl, Runqiao Dong, Jingyi Li, J Axel Zeitler

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

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We have developed an approach to investigate density variations in a moving powder bed by means of terahertz pulsed imaging. Terahertz measurements were acquired continuously during the rotation of a container filled with different grades of lactose and microcrystalline cellulose powder. Relative density distributions were resolved for different compaction stages of the powder, which indicated high variations of the powder density.

Original languageEnglish
Title of host publication2018 43rd International Conference on Infrared Millimeter and Terahertz Waves, IRMMW-THz 2018 - Proceedings
Place of PublicationPiscataway, NJ
Number of pages3
Publication statusPublished - 29 Oct 2018
Event43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) - Nagoya Congress Center, Nagoya, Japan
Duration: 9 Sep 201814 Sep 2018


Conference43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)
Abbreviated titleIRMMW-THz
Internet address


  • in-situ monitoring
  • terahertz pulsed imaging
  • powder density

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