Portable Molecular Detection System of Volatile Organic Compounds (VOCs)

• Quartz crystal microbalance (QCM) for detection of volatile organic compounds (VOCs) in gas.
• Sophisticated electronic circuit detects resonance frequency shift caused by molecular absorption on the surface of QCM.
• Utilizing the phase-locked loop (PLL) circuit to realize the mini-electronic measurement system

Applications:

• Field-deployable QCM sensing system
• Ultrasensitive chemical and biological substance detection.

Current Status:

• Fully functional and standalone system in a briefcase with the carrier gas.
• On-going research; work published
• In collaboration with Dr. Isiah M. Warner (Chemistry, LSU).