Integrated route to environmental noise management

Edited by the Engineeringtalk editorial team Aug 1, 2005

A modular environmental noise management solution has been developed by Bruel and Kjaer to address current as well as future noise mapping needs and action plans.

A modular environmental noise management solution has been developed by Bruel and Kjaer to address current as well as future noise mapping needs and action plans.

The new Bruel and Kjaer Noise Management Concept simplifies the management of environmental noise by efficient handling of the interaction between measured and calculated environmental noise results.

The new Noise Management Concept system is suitable for handling multiple clients and areas as well as dealing with smaller semipermanent tasks.

The new product has been developed to optimise the data exchange between different users, consultants and clients.

The system's new environmental noise calculation software, monitoring and measuring equipment combine to implement 1st maps, develop action plans and provide data to the public as well as regulatory organisations such as the European Environment Agency.

The new system's development is the result of a major customer research project aimed at providing solutions to address the requirements of the EU Environmental Noise Directive 2002/49/EC.

The Bruel and Kjaer Noise Management Concept offers an integrated approach to environmental noise management that make all tasks and activities more effective.

Environmental noise calculation and mapping software is combined with monitoring and measurement equipment in a single, cost effective, integrated noise management system.

A key element is Bruel and Kjaer's Noise Management Software Type 7843A installed on a Noise Management Server Type 3642.

The software's modern architecture provides a versatile platform to handle proposed future noise management requirements.

The system's hardware also features a Bruel and Kjaer Noise Monitoring Terminal Plus Type 3639-E, which is a powerful, modular noise monitoring terminal that can be used in all environments and conditions.

Featuring a specially designed enclosure the terminal can be left unattended as part of an environmental noise monitoring system for permanent, mobile or semi-permanent monitoring.

Alternatively the terminal can also be controlled by a remote PC using a selectable modem.

The Type 3639-E has a dynamic range of 110dB and provides the ability to log several parameters down to 0.5s periods.

Remote verification of the entire measurement chain is achievable using the patented charge injection calibration check (CIC).

The terminal comes with a selection of options such as sound recording, weather-data monitoring and 1/3-octave real time analyses.

The Noise Management Concept system comes equipped with a Bruel and Kjaer Type 4952 outdoor microphone that is guaranteed for unattended outdoor use with no significant change in sensitivity for a year.

The microphone functions correctly under conditions of up to 96% relative humidity and in ambient temperatures ranging from -30 to +55C.

Construction is simple and features a protective anti-bird spike.

"The experience gained from four decades of continuous research and development has been used to develop the Bruel and Kjaer Noise Management Concept", explained Jong-Bo Kim, Bruel and Kjaer UK's Internal Sales Manager.

"Now we can give you all the data you need and only the data you need to control the environmental noise".

The integrated environmental noise management system can cover complaints, mapping, monitoring, calculations and abatement.

The system will also provide reports, public information and safe, intuitive archival of data, results, reports and analyses.