Abstract
This study describes the potential of wavelength-modulated differential photothermal radiometry (WM-DPTR) for non-invasive in-vehicle alcohol detection which can be of great importance in reducing alcohol-impaired driving. Ethanol content in the range of concern, 0-100 blood alcohol concentration (BAC) in water phantoms and blood serum diffused in human skin in vitro were measured with high sensitivity. The results show that the WM-DPTR system can be optimized for alcohol detection with the combination of two sensitivity-tuning parameters, amplitude ratio R and phase shift ΔP. WM-DPTR has demonstrated the potential to be developed into a portable alcohol ignition interlock biosensor that could be fitted as a universal accessory in vehicles.
Highlights
Alcohol-impaired driving is a major road safety issue of international interest and concern
This study describes the potential of wavelength-modulated differential photothermal radiometry (WM-DPTR) for non-invasive invehicle alcohol detection which can be of great importance in reducing alcohol-impaired driving
Ethanol content in the range of concern, 0-100 blood alcohol concentration (BAC) in water phantoms and blood serum diffused in human skin in vitro were measured with high sensitivity
Summary
Alcohol-impaired driving is a major road safety issue of international interest and concern. There are four potential technology approaches [6]: (1) Tissue Spectrometry: BAC is estimated by measuring alcohol content of interstitial fluid (ISF) in the dermis by means of a Near Infrared (NIR) diffusely reflected beam from skin. Autoliv is a distant spectrometry, breath-based technology It “sniffs” the air in the car with a mid-infrared (MIR) transmission spectroscopy sensor, working at the ethyl alcohol fundamental absorption band around 9.6 μm, see Fig. 1. This would complicate the calibration procedure and introduce undesired device variability and false readings
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
