noise control system Articles

  • Netherlands’ Mobile Emergency Pumps Provide Rapid Flood Response

    The Western European nation has 20 mobile diesel-driven pumps on standby, ready to assist in national and international emergencies. One of the smallest and most densely populated countries in Western Europe, the Netherlands has nearly 10 million residents who live and work below sea level. Without active water management and primary flood defenses, ...


    By BBA Pumps

  • BBA Mobile Emergency Pumps Provide Rapid Response for Floods

    Netherlands’ Mobile Emergency Pumps Provide Rapid Flood Response In its latest edition, the North American PUMPS & SYSTEMS magazine publishes an in-depth article featuring the history and current usage of emergency mobile pumps. The Western European ...


    By BBA Pumps

  • Record breaking formula one fan noise control

    Problem: an extract system fan drone creating a potential environmental noise problem. Solution: aerodynamic engineering instead of silencers – in keeping with the Red Bull Technology ethos. The conventional technique used to reduce fan tones like this is a silencer – a large, palliative silencer that doesn’t tackle the source of the ...

  • Noise impact on human health and its control

    Noise can be termed as unwanted/undesirable sound, because of its adverse effects in our living and working environment .Unfortunately a large number of people work in Industrial plants, where the Noise level found consistently high, and the exposure takes place regularly for about 8-10 hours a day, year after year, the effects cease to be temporary & even permanent hearing loss, rather than ...


  • Reducing noise levels through engineering controls

      It"s fairly easy to control personal exposure to noise by limiting exposure time or using hearing protectors like ear plugs or ear muffs.  Engineering controls are usually applied to the machinery that produces noise. Imagine a 200 foot x 175 foot manufacturing facility with a 30 foot high ceiling.  In this building are a variety of cut-off saws, grinders, millers and other ...

  • Controlling the timing chain noise in diesel engines

    Timing drive by chain is commonly used in passenger cars especially in diesel engines with double overhead camshafts owing to their numerous advantages compared with belt drive systems. However, one of the important subjects to take into account is the timing chain noise, so-called "meshing noise" that can be perceived by the driver. The manufacturer's efforts to reduce it, are focused ...


    By Inderscience Publishers

  • Canarina CUSTIC software · noise control · algorithms 5

    9. References P.M.Morse, K.U.Ingard, Theoretical Acoustics, Princeton University Press. J.Llinares, A.Llopis, J.Sáncho, 1996, Acústica arquitectónica y urbanística, Universidad Politécnica de Valencia. A.Lawrence, 1970, Architectural Acoustics, Applied Science Publishers. L.Beranek, 1962, Music Acoustics and ...

  • Integrate noise measurements into your existing Process Monitoring and Control Systems.

    The ZE:908 is a small and lightweight power supply and acoustic conditioning unit for the Cirrus MV:200 microphone preamplifiers and MK:170 Outdoor microphone units. Many industrial plants have a variety of process sensors strategically placed around their site so that safety, environmental impact and efficiency can be monitored and managed, in real time, from one or more control rooms. The ...


    By Cirrus Environmental

  • Application of H-infinity hybrid active controller for acoustic duct noise cancellation

    This paper describes the principle and application of a hybrid robust active noise controller (ANC) for reducing broadband noise in acoustic ducts. The proposed ANC system consists of an adaptive controller with filtered-x least mean square (FXLMS) algorithm and a feedback structure with robust synthesis theory for obtaining robust performance and stabilisation. In an active control structure, ...


    By Inderscience Publishers

  • Low-noise Parking at Madrid Airport

    With over 34 million passengers, and handling over 360 000 flights annually, Madrid Barajas Airport, Spain is the fifth largest airport in Europe. It is owned by AENA (Aeropuertos Espaoles y Navegacin Area), who manage over 60 airports throughout Spain and Latin America and handle over 160 million passengers each year. On experiencing a growing number of complaints from the neighbouring ...

  • Noise at Work Regulations: 10 Years On

    Doesn’t time fly? It’s already been 10 years since Control of Noise at Work Regulations were introduced in the UK. But have you been following the legislation correctly? Here’s an overview of what the Noise at Work Regulations mean and some common mistakes you should be avoiding. Considering that legislation to limit ...


    By Cirrus Environmental

  • In-depth workplace noise risk assessments

    Don’t miss a thing with a custom-made noise measurement kit Pulsar Safety Professional System: the-all-in one solution to noise measurement Pulsar Instruments’ Safety Professional noise measurement system offer Safety, Health, Environmental and Quality (SHEQ) experts a custom-made solution for resolving their complex workplace noise risk ...


    By Pulsar Instruments plc

  • CR:245/SP Semi-Permanent Noise Monitor Semi-Permanent Noise Monitoring System example application case study

    Project Summary An industrial site in a remote location needed to monitor, measure and control boundary noise levels over the lifetime of a lengthy decomissioning and demolition project. Weather protection and reliability were top of the list for this application due to the remote location. A number of semi-permanent noise monitors were installed with data downloaded remotely over a ...


    By Cirrus Environmental

  • Autonomous data acquisition system for Paks NPP process noise signals

    A prototype of a new concept noise diagnostics data acquisition system has been developed recently to renew the aged present system. This new system is capable of collecting the whole available noise signal set simultaneously. Signal plugging and data acquisition are performed by autonomous systems (installed at each reactor unit) that are controlled through the standard plant network from a ...


    By Inderscience Publishers

  • In-situ noise level mapping for vehicle floor carpet

    Noise level mapping of test vehicles' floor carpets was undertaken for three frequency bands, that is, low-(2,000 Hz) to compare noise control treatment performance and effectiveness. On-road tests including idling conditions and constant speed tests of 40, 60 and 80 kph were undertaken. Noise level contour maps indicate that the luxury class test vehicle ...


    By Inderscience Publishers

  • NASA acts to reduce crawler transporter noise

    The United Space Alliance sought outsideassistance to evaluate and develop noise controlmeasures for NASA’s two CTs at KSC aspart of a modernisation and upgrading program.NASA selected Noise Solutions Inc. (ageneral acoustical contractor) and their subcontractorFaszer Farquharson & Associates ofCalgary, Canada to engage in this project. Thefirst phase of the sound study ...

  • Comparative study of frequency domain filtered-x LMS algorithms applied to vehicle powertrain noise control

    Currently, passive noise control treatment is widely applied to treat vehicle powertrain noise. However, passive noise control technology is often not effective in the low frequency range where the response is typically the most dominant component. With the rapid development of digital signal processing, active noise control (ANC) can be a feasible alternative. In this study, an enhanced ...


    By Inderscience Publishers

  • Konica Minolta - pulse noise source identification

    The Company Konica Minolta is a Japanese holding group and was formed by the integration of Konica Corporation and Minolta Co., Ltd. The group’s product portfolio includes business products and services and industrial products and services. Konica Minolta conducts its operations worldwide. Konica Minolta Business Technologies, Inc. provides equipment for offices and production ...

  • Casella BOUNDARY Guardian helps to control noise and dust on major London construction project

    Casella‘s BOUNDARY Guardian is helping to ensure noise compliance and control of air quality at BSkyB’s campus redevelopment site, bringing peace of mind to site operators, the client and the local community. The BOUNDARY Guardian is a system for web-based remote monitoring of noise and/or dust emissions that ensures compliance ...


    By Casella

  • Noise and vibration compliance management made simple

    Noise and vibration from large projects has the potential to cause nuisance in the community and trigger complaints. If not managed properly this can cause delays, increase project costs, and lead to litigation. Construction Sentinel Construction Sentinel is a web-based subscription service that provides everything you need to meet your ongoing noise and ...

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