Chemical image scanner based on FDM-LAPS

K. Miyamoto, Yohei Kuwabara, Shin'ichiro Kanoh, Tatsuo Yoshinobu, Torsten Wagner, Michael J. Schöning

Research output: Contribution to journalArticlepeer-review

32 Citations (Scopus)


The chemical imaging sensor is a semiconductor-based chemical sensor that can visualize the spatial distribution of chemical species. Although it has been applied to visualization of various specimens, its slow scan rate has been a problem. In this study, a new "chemical image scanner" system based on a linear LED array and frequency division multiplex (FDM) is proposed. The scan time to obtain an ion concentration image at a resolution of 16 pixels × 128 lines was reduced to 6.4 s with the new system.

Original languageEnglish
Pages (from-to)533-538
Number of pages6
JournalSensors and Actuators B: Chemical
Issue number2
Publication statusPublished - 2009 Apr 2


  • Chemical image scanner
  • Chemical imaging sensor
  • LAPS
  • Light-addressable potentiometric sensor


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