acoustic emission Articles

  • B&W Acquires Universal Acoustic & Emission Technologies, Inc.

    Babcock & Wilcox Enterprises, Inc. (B&W) (NYSE:BW) has acquired Universal Acoustic & Emission Technologies, Inc. (UniversalAET), a Wisconsin-based provider of custom-engineered acoustic, emission and filtration solutions, effective today. UniversalAET is a bolt-on acquisition for B&W MEGTEC and will be included in B&W’s Industrial operating segment. The ...


    By Dürr Megtec LLC

  • Acoustic emission source localisation on bone using multiple regression

    A regression source location algorithm is developed to locate microcracks in bovine bone samples. Bone samples measuring 60 mm long, 22 mm wide and 5.5 mm thick were harvested from bovine femora. Artificial acoustic emission sources were created on the bone samples. The known location of these acoustic emission sources and the recorded arrival times at four acoustic emission sensors were used to ...


    By Inderscience Publishers

  • A review on 'failure pressure prediction of composite pressure chambers using acoustic emission technique'

    Over the last four to five decades, application of fibre-reinforced plastics have seen tremendous growth. In spite of the complexity of their behaviour, development of composite pressure chambers has significantly contributed to the spectacular progress in the strength to weight ratio. This paper presents an overview on the acoustic emission (AE) developments towards failure pressure prediction ...


    By Inderscience Publishers

  • Case study - Nor848A Acoustic Camera Metro station in Taipei, Taiwan

    After the construction of the elevated sky train, too high noise levels were appearing under the line and local communities were complaining. Therefore acoustic absorbing panels were mounted under the metro line at critical sites in order to reduce noise emission. To document the effect of the absorbers a Norsonic Nor848A 1.0 meter acoustic camera was setup for recording and reporting on the ...


    By Norsonic AS

  • Glossary of Typical Oilfield Geophysics Terms

    A abnormal events absorbing boundary conditions absorptance absorption absorption band accelerometer acoustic acoustic basement acoustic coupler acoustic ...


    By Advanced Geosciences, Inc.

  • The Basics of Sound Theory and Testing Principles: A Brief Guide for Environmental Professionals

    As awareness of environmental noise pollution grows, environmental professionals not specifically trained or experienced in the field of acoustics or noise control are being increasingly called upon to assess, predict,and/or quantify sound emissions from a variety of industrial sources. This article provides an overview of basic acoustical fundamentals, including the frequency ranges of primary ...

  • Vehicle–road interaction for interior noise measurement and evaluation

    Nowadays, one of the most valuable criteria of vehicle quality assessment is based on acoustic emission levels. A vehicle is judged comfortable depending on the noise levels transmitted inside. Consequently, there is a general attention to the design criteria aimed at improving the structural acoustic behaviour, to comply with the increasingly restrictive ergonomic standard. Therefore, it is ...


    By Inderscience Publishers

  • Rockfall precursor detection based on rock fracturing monitoring by means of optical fibre sensors

    The monitoring of the acoustic emissions (AEs) due to rock fracturing allows the detection of the rockfall precursor signals, leading to a strong improvement of the real time assessment of the induced risk. A network of piezoelectric sensors (PZTs) provides reliable AE data, as testified by a series of applications in non–destructive testing, but PZTs are strongly affected by lightings and ...


    By Inderscience Publishers

  • Advanced SNCR - NOx Reduction on Large Utility Boilers

    Fuel Tech has recently completed full-scale demonstrations of Advanced Selective NonCatalytic Reduction systems on a number of large utility boilers (>600MW) firing a variety of fuel types. The systems use the latest flexible injection technology and are controlled with a balanced algorithm utilizing unit load, a full grid of continuous furnace temperatures and the plant continuous emissions ...


    By Fuel Tech, Inc.

  • Wet electrostatic precipitators offer cost-effective solution for HZL - Case Study

    An array of complex air pollution issues places the metallurgical industry among the largest potential sources of pollutants, and one of the most tightly regulated industrial sectors. One fully integrated, nonferrous metal producer in India, however, is demonstrating that a company with a determined commitment to environmental protection, energy efficiency and sustainability can succeed in ...


    By Beltran Technologies, Inc.

  • AngloGold Ashanti chooses Beltran WESP - Case Study

    AngloGold Ashanti Brasil Mineracao is a leading producer of gold in the world. AngloGold was working on production plans for the Cuiaba Gold Mining Expansion Project located at Nova Lima, Minas Gerasis. The plant's production capacity is projected to be equivalent to 400 metric tons of sulfuric acid per day. The Promon Company worked on the design, procurement, construction and assembly services ...


    By Beltran Technologies, Inc.

  • Case study - El Paso Water Utilities (EPWU)

    Service: Robotics Client: El Paso Water Utilities (EPWU) Project Date: June 2005 Type of Pipeline: Transmission Main Diameter: 24-inch Pipe Material: Lined Cylinder Pipe (LCP) Length: 0.64 miles The City of El Paso is the fifth largest in Texas, with a population of approximately 750,000. To serve the needs of this burgeoning city, El Paso Water Utilities (EPWU) operates ...

  • How to certify aero engines

    Aircraft Engine Noise Certification PowerJet, formed as a joint venture between Russian OAO NPO Saturn & French SNECMA (SAFRAN Group), have designed and built the new SaM146 turbofan engine selected by the Sukhoi Civil Aircraft Company to power its Superjet 100 aircraft family. The Sukhoi Superjet 100 is a medium-haul airliner developed in collaboration with Alenia Aeronautica (Italy), and ...

  • Global: Increasing Efficiency with Permanent Leakage Monitoring - Case Study

    Abstract In this paper information from Water Authorities in the USA, Europe, Middle East and Australia that have purchased permanent monitoring leak detection equipment is reviewed and the findings are presented in a structured format that covers the following: Justification for permanent monitoring Evaluating the different product offerings Selecting ...


    By Gutermann AG

  • Increasing efficiency with permanent leakage monitoring - Case study

    Abstract In this paper information from Water Authorities in the USA, Europe, Middle East and Australia that have purchased permanent monitoring leak detection equipment is reviewed and the findings are presented in a structured format that covers the following: Justification for permanent monitoring Evaluating the different product offerings Selecting the ...


    By Gutermann AG

  • Introducing the Knowledge Center

    Want to learn more about analyzing critical fluids like lubrication oil? Check out our NEW Knowledge Center.   Our mission at Spectro Scientific is to enable our customers to always make ...


    By Spectro Scientific

  • Illustrating our best solutions - Case study

    Sierra CP can help you design, build or upgrade your next world class engine and vehicle test facility.  Our working style is one of teamwork, innovation, flexible solutions and challenging the status quo in all that we do.  Your facility must reflect your brand to the highest level in look and feel and back it up with excellent testing ...


    By Sierra Instruments, Inc.

  • Rockwood Pigments chooses Beltran System - Case Study

    Rockwood Pigments, a global manufacturer of pigment products, has chosen a wet electrostatic precipitator (WESP) system engineered by Beltran Technologies, Inc.. to clean process gas streams before entering a sulfuric acid plant at its Easton, Pa., manufacturing facilities. Rockwood is the world's second laraest manufacturer of iron oxide and other inorganic color pigments used by paint and ...


    By Beltran Technologies, Inc.

  • WESPS continue to deliver

    Compliance with the increasingly stringent air pollution regulations of recent years is not the only reason forwardthinking industry leaders are adopting more sophisticated gas cleaning and air pollution control strategies. The desire to achieve higher performance efficiencies, control costs in a competitive marketplace, and stay ahead of the regulatory compliance curve is another driver of ...


    By Beltran Technologies, Inc.

  • Safety Systems Depend on Reliable Field Sensors (Emphasis on Fire and Gas Detectors)

    Abstract Because not all hazards are the same, identifying and quantifying the hazard is the starting point in choosing sensing technology. Not all detectors are the same, and they should be selected according to their ability to detect the hazard. This paper gives a broad summary of technologies that provide users reliable responses to hazardous conditions, that minimise false ...

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