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The Influence of Logarithmic Amplifiers on Information Loss in Acoustic Emission Signals

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F11%3APU92851" target="_blank" >RIV/00216305:26220/11:PU92851 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    The Influence of Logarithmic Amplifiers on Information Loss in Acoustic Emission Signals

  • Original language description

    Acoustic emission (AE) is one of the most used nondestructive technique since it offers a great potential due to its ability of quantitative evaluation such as a source location and a source characterization. A common set of recorded acoustic emission signals has an extraordinarily wide dynamic range. Thus, the input gain of the A/D converter plays a key role due in information loss considering limitation of high signal amplitudes and omination of quantization noise at low levels. These difficulties canbe eliminated by the usage of preamplifier with logarithmic of near-logarithmic conversion. This paper describes design and realization of a logarithmic preamplifier, and includes experimental study of signals from artificial acoustic emission sources in order to evaluation of influence of the realized amplifier on information loss.

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

    JA - Electronics and optoelectronics

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/GD102%2F09%2FH074" target="_blank" >GD102/09/H074: Diagnostics of material defects using the latest defectoscopic methods</a><br>

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2011

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Article name in the collection

    EDS '11 IMAPS CS INTERNATIONAL CONFERENCE PROCEEDINGS

  • ISBN

    978-80-214-4303-7

  • ISSN

  • e-ISSN

  • Number of pages

    5

  • Pages from-to

    128-133

  • Publisher name

    NOVPRESS s.r.o.

  • Place of publication

    Brno

  • Event location

    Brno

  • Event date

    Jun 22, 2011

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article