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Sensors & Electronics

Chemical Sensors

Small Acoustic Wave Chemical Sensors (170)

Surface Acoustic Wave (SAW) Resonator SAW Dual Delay Line Device (on penny)

Problem: Need robust, miniature chemical sensors to provide rapid, reversible analysis of multi-component chemical vapors

Project Activity Scope (from Technical Overview Chart): Mechanisms through Sensors & Devices

PNNL Solution:

• Quartz-based SAW sensors, coated with chemically selective films, can detect chemical vapors
• Sensor arrays, with diverse coatings, detect multiple chemical vapors
• Chemometric analysis is used to calibrate multiple vapor signals

Capabilities Employed to Meet Client Needs: Thin polymer film application methods; multiple sensor test platforms; automated vapor generation methods; sensor array development; performance testing including response characterization & calibration.

Selected Links to Related Information:

• Related Examples (Same Project)
  • Chemical Sensor Response Measurement (172)
  • Data Analysis for Multi-Sensor Arrays (171)
  • Selective Coatings for Chemical Sensors (5)
• Similar Technology Examples (Same or Different Application)
  • Field Sensor System for CW Analytes (14)
  • Sensors for CW Clothing Evaluation (3)

Contact: Jay Grate