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Proceedings Paper

Low cost miniature data acquisition and control system for photoacoustic experiments
Author(s): Tomasz Starecki; Marcin Grajda
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Paper Abstract

The paper describes a truly miniature system for data acquisition and control, dedicated for photoacoustic measurements. Due to intensive use of electronics and digital signal processing most of expensive and/or inconvenient elements of photoacoustic setups, like mechanical chopper or lock-in amplifier, were eliminated. The advantages of the designed device are very low cost, small size, and high functional flexibility. Most of the measurement factors, e.g. analog path gain, light source modulation frequency, number of samples a period, etc. are programmable and can be changed at run-time. Implementation of real-time and stroboscope PAS signal sampling makes possible to acquire high resolution samples while preserving wide input bandwidth. Due to in-circuit programmable components, upgrades of the device are very easy. Small size and low power consumption make the device a very good choice for implementation of portable photoacoustic instruments.

Paper Details

Date Published: 26 April 2006
PDF: 8 pages
Proc. SPIE 6159, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments IV, 61592O (26 April 2006); doi: 10.1117/12.674844
Show Author Affiliations
Tomasz Starecki, Warsaw Univ. of Technology (Poland)
Marcin Grajda, Warsaw Univ. of Technology (Poland)


Published in SPIE Proceedings Vol. 6159:
Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments IV

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