Abstract
Laser absorption spectroscopy by photoacoustic (PA) detection technique is increasingly used in trace gas analysis. Our research group focuses on related instrument and application development. In this paper the design and test results of a newly developed field programmable gate array based data acquisition and control system (DACS), are introduced. It became necessary to develop this new system since the limits of the old one had been reached; furthermore, it was challenging to implement new advanced measuring protocols. The system was designed to be scalable in order to be able to implement further ideas or measurement protocols without significant hardware or software modifications. In the current configuration, approximately 60% of the resources of the system are used. A complete PA measuring system was built around the new DACS to determine the analytical properties: the normalized noise equivalent absorption is 7.5×10−10cm−1WHz−1/2, while the estimated dynamic range for measuring optical absorption is 7.5orders of magnitude.
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.
