Design of a measurement stand with DAQ card and semiconductor laser for recording acoustic signals

• Autorzy: Krawiecki Z. , Gloger D.
• Języki publikacji: EN

Abstrakty

EN

This article describes the stage of work associated with the implementation of a program- controlled measuring stand for recording the acoustic signals. An attempt has been made for practical implementation of the stand that uses light from a semiconductor laser, modulated by acoustic wave to obtain the information transmitted by this wave. The authors decided to build the hardware construction of the stand with the use of: a PC which serves as the controller, a DAQ card, the light emitter set with a semiconductor laser and the light receiving set capable of processing the received signal into a form suitable for a DAQ card. Moreover, additional equipment used during the examination tests is also described. The software part of the stand includes: device drivers and an application written in LabVIEW environment. The functions of signal processing and analysis, graphical and numerical presentation of the data, recording to file and reading the stored data from a file are all implemented in the application. The achieved stage of a work has been confirmed by sample measurements.

Słowa kluczowe

EN

acoustic signal; recording; photodetector; semiconductor laser

• Wydawca: Wydawnictwo Politechniki Poznańskiej
• Czasopismo: Computer Applications in Electrical Engineering
• Rocznik: 2014
• Tom: Vol. 12
• Strony: 541--550
• Opis fizyczny: Bibliogr. 9 poz., rys.

Twórcy

autor

Krawiecki Z.

• Poznań University of Technology 60-965 Poznań, ul. Piotrowo 3a

autor

Gloger D.

• Poznań University of Technology 60-965 Poznań, ul. Piotrowo 3a

Bibliografia

• [1] LabVIEW User Manual, National Instruments Corporation, 2003.
• [2] NI USB-621x User Manual, 2009.
• [3] Technical documentation of the Vishay BPW34 photodiode.
• [4] Davis G., Jones R., The Sound Reinforcement Handbook Second Edition, Hal Leonard Publishing Corporation, USA 1989.
• [5] Gloger D., Odon A., Microphone preamplifier for professional purposes, Academic Journals, Poznań 2010.
• [6] M1 Active Mk2 Reference Manual, Alesis Corporation, 2001-2005.
• [7] Otomański P., Krawiecki Z., Odon A., The application of the LabVIEW environment to evaluate the accuracy of alternating voltage measurements, Journal of Physics: Conference Series, 13th IMEKO TC1-TC7 Joint Symposium: Without Measurement No Science, Without Science No Measurement, vol 238, 1-3, September 2010, City University London, UK, pp. 1-6.
• [8] Vishay Semiconductors, Measurement Techniques Document Number: 80085, Rev. 1.4, 2012.
• [9] National Instruments Tutorial-3727-en, The NI TDMS File Format, 2014.