acoustics monitoring Applications

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Noise monitoring solutions for room acoustics

by Brüel & Kjær Sound & Vibration Measurement A/S     based in Nærum, DENMARK

Room Acoustics concerns the way sound is created, propagated, perceived, measured and modelled inside enclosures. Enclosures can be dwellings, offices, workshops, factory halls, lecture rooms, auditoria, concert halls, transportation terminals, etc. Reverberation Time is the single most important parameter used to describe Room Acoustics, but in addition, parameters describing music quality and speech inteligibility are important.

Noise monitoring solutions for electroacoustics

by Brüel & Kjær Sound & Vibration Measurement A/S     based in Nærum, DENMARK

Manufacturers of electroacoustic equipment such as loudspeakers, microphones, telephones, headsets, hearing aids, hydrophones, etc., have, for many years, successfully developed new innovative acoustical designs and introduced these into the market in the form of high-quality products.

Noise monitoring solutions for sound intensity mapping

by Brüel & Kjær Sound & Vibration Measurement A/S     based in Nærum, DENMARK

Sound Intensity is the measure of acoustic energy passing through a unit area. By integrating over a surface enclosing an object under test, you can calculate the object`s sound power. This can be done regardless of background noise, allowing convenient, in situ measurements of sound power. Other advantages of sound intensity measurements include the ability to determine the directionality of sound, and to quickly localise noise `hot spots`. Mapping software takes this a stage further by providing you with a contour map of noise levels to provide intuitive documentation of noise problems.

Noise monitoring solutions for material testing

by Brüel & Kjær Sound & Vibration Measurement A/S     based in Nærum, DENMARK

With today`s growing focus on noise control issues and the emergence of sound quality as an important aspect of product design, acoustic material testing is becoming increasingly relevant to engineers, designers and manufacturers from a broad range of industries. Acoustic material testing is the process by which the acoustic characteristics of materials are determined in terms of absorption, reflection, impedance, and admittance, including transmission loss.

Wind farm noise monitoring

by Larson Davis, a division of PCB Piezotronics     based in Depew, NEW YORK (USA)

Wind energy is a renewable energy source that is being harnessed globally to reduce our dependence on fossil fuels and the associated impact on our environment. However, the environmental impact of the turbine noise and the blade pass noise is a concern that is carefully monitored and generally regulated. It is very important to be able to acquire accurate acoustical data for analysis, noise impact predictions, and regulatory compliance. Effective noise monitoring is a very valuable tool to manage a wind farm’s relationship with the community and with the local regulatory organizations. 

Water Monitoring and Flow Measurement Systems for Hydrology

by HydroVision GmbH     based in Kaufbeuren, GERMANY

In recent years acoustic flow measurement and flow metering has established itself as the standard method for measurement in many hydrological stations but is also used as the basis for various applications, for example for flood protection and flood forecasting. Ultrasonic flow meters are also used in hydro-engineering constructions. With this almost contact free technology data can be recorded continuously and it provides 24/7 monitoring. Such flow monitoring is particularly important in waterways used for shipping, transportation, irrigation, drainage and for cooling water extraction of power plants. A further important use of transit-time open channel flow meters is the transportation of water used for the supply of drinking water. Here the focus lies on detecting the flow rate of water loss at an early stage as it is sometimes difficult to detect small leakages.

Noise monitoring for railways and trains

by Larson Davis, a division of PCB Piezotronics     based in Depew, NEW YORK (USA)

Controlling and monitoring railway and train noise in residential and urban areas is a critical function of a railway. The noise generated can be dependent upon the engine, rail cars, rail construction, train speed, and the horn. Modern high speed trains have also created new levels of high frequency noise that create an acoustic disturbance that sounds like an aircraft going by.

Related Terms for acoustics monitoring

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