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This lesson details the instrumentation of a mass spectrometer—a physical instrument to perform mass spectrometry on analyte molecules and record the characteristic mass spectra. This is achieved via three chief functions:
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Characterization of a Robust 3D- and Inkjet-Printed Capacitive Position Sensor for a Spectrometer Application.

Lisa-Marie Faller1, Martin Lenzhofer2, Christina Hirschl3

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Summary

A novel inkjet- and 3D-printed capacitive sensor system offers reduced spectrometer costs and size. Its flexible, all-digital read-out hardware achieves high resolution and sampling rates for precise measurements.

Keywords:
3D-printed metalsadditive manufacturingcapacitive sensorinkjet-printingnanometer position measurement

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Area of Science:

  • Sensor Technology
  • Spectroscopy Instrumentation
  • Additive Manufacturing

Background:

  • Spectrometer devices require high-resolution sensors for precise measurements.
  • Existing sensor systems can be bulky and expensive.
  • Need for advanced sensor read-out electronics for improved performance.

Purpose of the Study:

  • To develop a cost-effective and compact capacitive sensor system for spectrometers.
  • To create a flexible, all-digital sensor read-out hardware.
  • To achieve high position resolution and wide measurement range in spectrometer applications.

Main Methods:

  • Fabrication of a multilayer inkjet-printed electrode structure on a 3D-printed copper housing.
  • Development of flexible, all-digital sensor read-out hardware with a carrier frequency system.
  • Implementation of high sampling rates (up to 10 ns) and precise trigger signal generation.

Main Results:

  • Achieved very high position resolutions below 50 nm and a wide measurement range of 1000 μm.
  • Enabled spectrometer devices with significantly reduced outlines and costs.
  • Demonstrated quasi-noise-immune read-out with flexible bandwidth and frequency choices.

Conclusions:

  • The developed inkjet- and 3D-printed capacitive sensor system enables advanced spectrometer designs.
  • The flexible, all-digital read-out hardware significantly enhances measurement precision and system efficiency.
  • This technology presents a viable solution for cost-effective, high-performance spectrometer instrumentation.