Bruel & Kjaer UK goes on tour
Free Noise Measurement and Management workshops now available during November
Bruel & Kjaer UK launches 2015 training courses
2015 training sessions now open for booking
Meet Brüel & Kjær at autumn conferences
Bruel & Kjaer UK will be exhibiting at several, environmentally focused conferences this autumn
Plug and play noise monitoring
Together with Noise Sentinel - On Demand, your Type 2250 is now enabled to do 24/7 unattended noise monitoring.
Brüel & Kjær's USA Sound & Vibration Conference
Three-day conference offers training from basic to advanced applications
Brüel & Kjær Impedance Meter System for aircraft testing
Brüel & Kjær's lightweight, robust Portable Impedance Meter System - Type 9737
Back to (training) school with Brüel & Kjær
Brüel & Kjær’s autumn training sessions are open for registration
Simple quoting for short-term noise monitoring projects
Now consultants can show potential customers full pricing for short-term noise monitoring equipment with Noise Sentinel - On Demand
Arup Acoustics’ sound project scoops ANC Award
Arup Acoustics wins Environmental Acoustics award category at ANC Awards
Manchester Airports Group expands noise monitoring horizons
Manchester Airports Group Plc expands noise management capabilities
Brüel & Kjær launches wireless echo speech sound source
Improved speech intelligibility measurements with DIRAC 6 and Echo
Meet Bruel & Kjaer UK at summer conferences
Sound and vibration specialist, Brüel & Kjær is exhibiting at two trade shows during July.
Bruel & Kjaer’s noise mapping software heads east
Brüel & Kjær’s noise prediction software - Predictor-LimA - is now available in Chinese
Crossrail project on the right track
A noise monitoring system on London's huge rail project ensures construction noise compliance
Association of Noise Consultants to reward best acoustic practitioners
ANC 2014 Awards will see one entrant win a Brüel & Kjær 2250 Light Sound Level meter
Eindhoven Airport enhances communication with community
The Netherland’s second busiest airport ready to grow while maintaining good relations
Brüel & Kjær launches USA Sound & Vibration Conference
Registration for Chicago-based training conference sessions now available
Visit Brüel & Kjær at CIEH conference
Visit Brüel & Kjær at CIEH conference
Brüel & Kjær licences fibre-optic accelerometers to Smart Fibres
Deal targets vibration measurements in harsh environments like the oil and gas industry
Room acoustics, speech intelligibility and more at Prolight + Sound 2014
Short term noise monitoring that works the way you need it to
Short term noise monitoring designed to work the way consultants need it to
Meet Bruel & Kjaer UK at spring conference
Bruel & Kjaer UK will be exhibiting at the Engineering Society’s (EIS) annual Instrumentation conference this March
Meet us at IMAC XXXII
Streamlining data handling in naval defence
Time is always a pressing factor, especially during costly sea trials, so the company format tests for easy use by operators who are unfamiliar with Brüel & Kjær’ PULSE system, designing customised GUIs for specific applications
LDS shakers used to test sensors on Gaia probe
The Gaia satellite, carrying the world’s most powerful camera has launched into space to begin a five year journey to map the stars in our Galaxy.
Double measures from Brüel & Kjær
Sound and vibration expert launches 2 channel sound level meter
Fine-tuning acoustic isolation in buildings
ACCIONA Infrastructure is ranked among the leading construction companies in the world
Hearing loss hazard for call center workers
Noise-induced hearing loss is the second most common occupational disease, reducing the quality of life for millions of people who suffer from it
Winnipeg Airports Authority chooses NoiseDesk
Airport noise monitoring solution selected by Winnipeg Airports Authority
Brüel & Kjær launches updated noise mapping software
Predictor™-LimA™ Software Suite Type 7810 Version 9.1 now available
Snecma boosts engine testing abilities
Aerospace propulsion systems expert, Snecma has enhanced its engine testing capabilities with sub-miniature charge accelerometers
More traffic in Montevideo, but no more noise
Noise from vehicles in the bustling Uruguayan capital city Montevideo has remained relatively stable, a study shows.
What's that old sound level meter worth…
Trade in offer for 2236 sound level meter owners...learn more
Danish construction project uses Noise Sentinel to take away the headache of noise monitoring
Noise management for inner-city building site
What’s that old sound level meter worth…
What’s that old sound level meter worth…
Kudos for ACCON UK Crossrail construction project
Consultancy wins Bruel & Kjaer sponsored Environmental Acoustics award category
Brüel & Kjær’s Noise Sentinel shortlisted for the International Tunneling Awards
Brüel & Kjær’s noise management service – Noise Sentinel – has been shortlisted for the Environmental Initiative of the Year Award at the 2013 International Tunnelling Awards
Are you a 2236 or a MATRON1 owner...?
Trade in offer for 2236 sound level meter owners...learn more
ATA Engineering strengthens ties with Brüel & Kjær
Engineering consultancy company ATA Engineering, Inc (ATA) has strengthened its ties with instrument and solution provider, Brüel & Kjær, with the procurement of a PULSE Data Acquisition and Analysis system
Airbus parent grows lab at Spain's aviation birthplace
EADS Spain invests in new LDS vibration testing system from Brüel & Kjær for Airbus Military's headquarters
Better sound and vibration productivity with PULSE 18
Brüel & Kjær’s data analysis platform PULSE gets advanced new features in its 18th version
Vibration and climate testing of automotive components
The Clemson University International Center for Automotive Research (CU-ICAR) in South Carolina, USA, is aiming to become the premier automotive and motorsports research and educational centre in the world
Helping communities understand aircraft noise
Brüel & Kjær has launched a new feature rich website - WebTrak MyNeighborhood - which ties into local airport noise monitoring system to provide communities with answers about long-term noise impact
New family of tough vibration measurement accelerometers from Brüel & Kjær
Obituary – Dr Viggo Kjær, Co-founder of Brüel & Kjær
Dr Viggo Kjær, the co-founder of Brüel & Kjær, passed away on July 25th 2013 at the age of 99.
Shaker maker expands vibration test output
Brüel & Kjær expands LDS testing capabilities to meet increased demand
Zagreb Airport upgrades environmental monitoring
Brüel & Kjær's noise monitoring customer Zagreb Airport signs a 4-year contract to upgrade it's existing system to include flight track and emissions monitoring
Excellence in Acoustics Awards scheme
Association of Noise Consultants reward best acoustic practitioners
Specific sound source analysis for the road ahead
Brüel & Kjær’s SPC provides clear results for NVH experience
Robot-controlled acoustic holography helps hearing aid development
Hearing aid manufacturers are constantly striving to improve speech intelligibility and comfortable listening
DIY construction noise modelling software
Video guide to Brüel & Kjær’s Predictor-LimA now available
Environmental events on the Emerald Isle
Sound and vibration specialist, Bruel & Kjaer UK will be exhibiting at two environmental events taking place in Ireland this summer
Hyundai refines ride quality with a desktop simulator
Automotive expert Hyundai has expanded its testing capabilities with a Noise Vibration Harshness (NVH) simulator for benchmarking its new vehicles
Put smart recording in the driver's seat - Sonoscout NVH Recorder
An iPad®-based data recorder from sound and vibration experts Brüel & Kjær is set to change the way automotive developers work.
Wind energy testing is a breeze for Vestas
Sustainable energy expert expands testing tool kit
Ensuring satellite reliability with vibration testing
RAL Space provides world-leading space research and technology development for customers around the world. They offer space test and ground-based facilities where they design and build instruments, analyse and process data. They also operate ground-station facilities, and lead conceptual studies for future missions
Scottish Symbol’s Sonata
National landmark becomes a work of art
Meet the Bruel & Kjaer UK Team this spring
Bruel & Kjaer UK’s technical team will be on hand at three industry events during the spring to demonstrate its wide range of products and services
ONERA acquires Brüel & Kjær wind tunnel test system
The French aerospace research centre, ONERA, has acquired a 200-channel Brüel & Kjær PULSE™ acoustic data acquisition system for wind tunnel testing
Expediting electronic exports for Thailand
Thailand’s electronic exports play an important role in generating national income and although electrical exports have been growing, they are facing fierce competition at regional and national levels - and changeable trade rules that can hinder exporters
Outdoor noise measurement with integrated weather parameters
Brüel & Kjær has launched a turnkey solution for measuring noise and weather parameters simultaneously.
Ishibashi tests wind gearboxes with PULSE
Japan’s largest wind turbine gearbox manufacturer Ishibashi faces a familiar challenge in manufacturing wind turbine gearboxes
New preamplifier gets closer to hot sources
Brüel & Kjær has launched the world’s first preamplifier and preamplifier/microphone combinations able to withstand temperatures up to 125 ºC (257 º F)
Linamar McLaren's advanced NVH/durability test stands
Linamar partners with Brüel & Kjær to develop its automotive engineering solutions
180 °C universal accelerometers
Featuring an integral pre-amplifier, selectable measurement axes and specifications suited to general-purpose use.
Thanks for 70 years of driving innovation
Vehicle simulator improves Commercial Vehicle Group’s test capabilities
A Desktop Noise Vibration Harshness (NVH) Simulator has vastly improved Commercial Vehicle Group’s (CVG) customer relations and jury testing capabilities
Noise Sentinel wins a 'Noise Oscar'
Brüel & Kjær is pleased to announce that Noise Sentinel, an online subscription based system for noise compliance management, has won the UK Noise Abatement Society’s John Connell Technology Award, sponsored by the Institute of Acoustics
Get the low down on Low Frequency
Brüel & Kjær’s IEC 61672 compliant sound level meter kit
Helping Volvo maximise uptime
With the many challenges facing the automobile industry, such as shortened development times, Volvo is increasingly moving its Noise, Vibration and Harshness (NVH) development into computer simulation and modelling, with less traditional prototyping
Brüel & Kjær to supply Pratt & Whitney static engine noise test system
Brüel & Kjær is to supply Pratt & Whitney with a Static Engine Certification Test (SECT) System
Breakthrough 4G phone quality system from Brüel & Kjær and Agilent Technologies
Unique 4G voice quality testing solution ready for future Voice-over-LTE phones
Virginia Tech gets aerospace vibration and acoustics laboratory
Virginia Polytechnic Institute and State University has opened their new ‘Brüel & Kjær Laboratory for Aerospace Vibration and Acoustics’
Meet Brüel & Kjær at Spring Events
Brüel & Kjær exhibiting latest equipment at UK shows
Releasing the music in the Golden Gate Bridge
Using accelerometers, microphones, speakers and amplifiers - for uses that their designers surely never foresaw - composer Bill Fontana has been making sound art since the 1970s
ASTRIUM choose LDS V994 Shaker for satellite testing
Brüel & Kjær is to provide ASTRIUM with an LDS vibration shaker system for mechanical vibration and shock testing of satellites
Shorten time-to-market with Test-FEA integration
New tools unite structural dynamics testing and simulation
Bruel & Kjaer VTS at Best Factory Awards Conference
Vibration test systems manufacturer to host session at show
Automotive Testing Expo India 6 - 8 March 2012
Visitors to this year’s Automotive Testing Expo India will be able to see Brüel & Kjær’s testing superkart, as well as the popular NVH Vehicle Simulator
Internet age dawns on neighbour noise investigations
Brüel & Kjær launches first web-based Neighbour Noise Nuisance Monitor
The sound of silence
Bruel & Kjaer Exterior Sound Simulator for assessing ‘silent’ vehicles
Keeping you up to speed
Superior automotive testing software from Brüel & Kjær
Meet Brüel & Kjær at Wind Turbine Noise Event
Brüel & Kjær exhibiting latest equipment at Institute of Acoustic meeting
NoiseSentinel Chosen for London Crossrail's Moorgate Shaft Project
Brüel & Kjær’s real-time noise monitoring subscription service, NoiseSentinel, is set to ensure the compliance of the Crossrail construction works
London Southend Airport contracts NoiseDesk
Brüel & Kjær has been chosen to supply NoiseDesk, its latest noise and flight track monitoring service, to London Southend Airport.
Versatile surveying with a hand-held sound intensity system
Bruel & Kjaer launches 2270-G
NoiseDesk - Airport noise made easy
Meet Bruel & Kjaer UK at Aero Engineering 2011
Technical team exhibiting latest equipment at Birmingham show
Brüel & Kjær VTS “Highly Commended”
Best Factory Awards 2011 winners announced
LDS Test & Measurement Ltd becomes Bruel & Kjaer VTS
Shaker manufacturer fully integrated with Bruel & Kjaer
Sound and the city
Bruel & Kjaer launch range of urban noise management tools
Isuzu - Improving the Sound Quality of Diesel Engines
Isuzu worked with sound and vibration expert, Brüel & Kjær to develop mapping of Sound Quality metrics
Bruel & Kjaer launches updated noise mapping software
Predictor-LimA software offers new user support functions
Austin-Bergstrom further improves noise management with Brüel & Kjær
Upgraded Brüel & Kjær Monitoring System Equips Austin-Bergstrom International Airport to Further Improve Noise Management
Room with acoustics
Software for room acoustics - DIRAC 5
FlightOps: Weather data and ETAs helps airfield operations
Enhancements to FlightOps provide added value for airfield operations teams
Reduce Construction project risk
Brüel & Kjær launches construction site noise and vibration monitoring
Bruel & Kjaer Goes Green(er)
Sound and vibration expert gains environmental ISO certification
University of Windsor establishes Wind and Renewable Energies Research Centre
The University of Windsor establishes the first Wind and Renewable Energies Research Centre in North America
Thales Alenia Space choose LDS V994 Shaker for Satellite Testing
Brüel & Kjær to provide Thales Alenia Space with an LDS vibration shaker system for mechanical vibration and shock testing of satellites.
Dassault Aviation choose Brüel & Kjær surface microphones for development of nEUROn UCAV
Brüel & Kjær has been selected by Dassault Aviation to provide high-pressure surface microphones for the development of the nEUROn experimental Unmanned Combat Air Vehicle (UCAV).
Brüel & Kjær completes delivery of BAE HVME System
Brüel & Kjær recently delivered their HVME (Hull Vibration Monitoring Equipment) solution to BAE Systems Submarine Solutions
Powered by Nature
Wind energy is one of the fastest growing power generation technologies
A Mine of (Noise) Information
Brüel & Kjær launches noise management system for mine operators
INPE selects Brüel & Kjær satellite vibration test system
INPE, Brazil has selected Brüel & Kjær to be the supplier of their replacement data acquisition and vibration test system for satellite launch simulation and qualification testing
Measurements on the Move
Brüel & Kjær adds ‘moving source’ software option to data analyser system
Accelerate your vibration testing
Accelerated vibration testing sees great benefits thanks to the synergy between Brüel & Kjær's Kurtosis Control software and nCode Glyphworks® software by HBM
Underwater vibration measurements - even at high temperatures
Waterproof Accelerometer cable now available from Brüel & Kjær
2260 Investigator bows out gracefully
After almost 17 years of faithful service that saw it travel into space and appear on the BBC, the distinctively shaped 2260 Investigator has finally come to the end of it's natural life.
Amp It Up
Brüel & Kjær launches sound quality focused headphone amplifier
Ferrari balances Formula One engines with PULSE
Scuderia Ferrari recently invested in a 6-channel PULSE LAN-XI data acquisition system. This is mainly used for engine test bench balancing, a major issue when Ferrari's Formula One engines run at up to 20,000RPM.
Brüel & Kjær EMS Lands Burbank Airport NFTMS Project
In a competitive bid process, which took more than 18-months to complete, the Brüel & Kjær EMS Team was chosen to replace the Noise and Flight Track Management System (NFTMS) for the Burbank-Glendale-Pasadena Airport Authority.
Santa Monica Airport Community Outreach with Brüel & Kjær WebTrak
Santa Monica Airport will soon be the 51st airport to make online aircraft overflight investigation and complaint management a part of their airport-community outreach program with WebTrak.
Airbus military tanker passes civilian noise restrictions
Spain’s National Institute for Aerospace Technology (INTA) successfully took part in the Noise Certification of the Airbus A330 MRTT (Multi Role Transport Tanker) using Brüel & Kjær’s equipment and expertise.
United Force - Brüel & Kjær launches new integrated Predictor-LimA software
Brüel & Kjær launches new integrated Predictor-LimA software
MIRA and Brüel & Kjær Collaboration to drive improvement in Vehicle NVH Solutions
MIRA Ltd and Brüel & Kjær have signed an agreement to collaborate on providing turnkey noise, vibration & harshness (NVH) testing solutions and consultancy to optimise the vehicle development process.
Ulsan utilise Brüel & Kjær automotive solutions
Sound Intensity in the Palm of Your Hand
Brüel & Kjær launches hand held sound intensity system - 2270-G
The University of Windsor Dedicates Test Lab to Brüel & Kjær
The University of Windsor pays tribute to long-term working relationship, by naming its new laboratory after sound and vibration expert, Brüel & Kjær.
Increased Shaker System Capacity
Brüel & Kjær launch a new range of LDS head expanders
Chevy Volt LDS Test System for Electric Vehicle Battery Durability
The Fast and the Fourier
Brüel & Kjær launches a new hand-held vibration analyser
Jost’s Engineering: New Distributor for LDS Vibration Test Solutions in India
Jost's Engineering is now exclusive distributor for LDS' shakers and controllers in India
Cost Effective, High Channel Density Measurement Modules
Brüel & Kjær launch world’s smallest 12-channel data analysis system
In Gear for a Sustainable Future
Hansen Transmissions utilises Brüel & Kjær’s data analysis for wind turbine testing
Virtual Vehicles hit the road
At Nissan Technical Centre Europe, they combine reality with virtual reality to immediately understand a vehicle's NVH performance.
Shockingly Speedy Software
LDS launch enhanced Kurtosis Parameter Control application
Meet Brüel & Kjær at INTER-NOISE 2010
Get a preview of Brüel & Kjær's new products - due for release this summer - at INTER-NOISE 2010.
Contact-free Speed Measuring
Testing high speed, rotational machinery is now a safer and simpler process with Brüel & Kjær’s new Laser Tacho Probe, Type MM-0360.
Madrid Airport Launch Brüel & Kjær WebTrak Service
Spanish Airport operator AENA is the latest to launch a WebTrak service for the local community around Barajas airport in Madrid.
Brüel & Kjær at AES 2010 Show
Visit Brüel & Kjær on stand number 1009
Shaker agreement for IMV and LDS
Non-exclusive agreement to enhance global supply of products
Love Music? Love your ears!
Many music fans couldn’t imagine life without their beloved MP3 player, yet - for the so-called MP3 generation - listening to music too loudly, for long periods of time through headphones may be leading to a life without music
Highly Attuned Accelerometers
Brüel & Kjær launches new accelerometer for very low level testing
JNIOSH Reproduction of Multi-modal Sensation
Japanese National Institute of Occupational Safety & Health Reproduce Multi-modal Sensation
Noise Sentinel: Simplify your noise management
Noise Sentinel - internet based subscription service for urban and industrial noise monitoring
Proven Vibration Testing of Hybrid-vehicle Batteries
Highly accelerated lifetime testing is a must in today's ultra-competitive automotive industry, especially for emerging technologies, such as hybrid-vehicle batteries.
Research and Development of Sound Quality in Lifts
Orona used the Head and Torso Simulator, binaural microphones and PULSE Sound Quality software to analyse and improve the sound quality of lifts.
Bruel & Kjaer UK upscale to new facilities
Data recording without ranges or limits
Brüel & Kjær launch the LAN-XI Notar™ PC-less stand-alone recorder
IMAC XXVIII, 31st Jan - 4th Feb
Visit IMAC XXVIII in Jacksonville Florida to experience the newest developments within structural dynamics from Brüel & Kjær and LDS.
PULSE 14 released
PULSE 14 - the latest in Brüel & Kjær's solution for sound and vibration measurement - is now released
PULSE “One of the Best Buying Decisions Ever”
MIRA uses PULSE with Sound Power software to test customer products compliance with EU Noise Emission Directive 2000/14/EC. MIRA is a leading automotive design, development and certification consultancy.
Konica Minolta - PULSE Noise Source Identification
Brüel & Kjær contributed with a turnkey PULSE solution, including a microphone positioning robot, to Konica Minolta's world classic test laboratory. Setting up for a test used to take 45 minutes , now it takes less than five.
Ford uses PULSE NVH Vehicle Simulator
to "eliminate mistakes, reduce the need for prototyping, shorten time to market, and produce a product that delivers high-end interior quietness..."
Carry Online With Interactive Sound Level Meters
Access Brüel & Kjær sound level meters over the internet
ESTECH Marks Twentieth Year with New Acoustic Testing Site
Japanese engineering consultant, ESTECH Corporation, celebrates twenty years in business by expanding its premises with a brand new testing facility site.
Made to Measure
Brüel & Kjær launches light-weight power amplifier
Quick Click Quotes
Brüel & Kjær launch online quotation tool
Volker Fitzpatrick on the right track
New noise level monitoring system to assist with road project
Brüel & Kjær Goes Gold
Sound & vibration expert gold sponsor at Euronoise 2009 conference
New Random Vibration Control Software Release
Version 8 featuring Kurtosis and Fatigue Monitoring
Brüel & Kjær launch new room modelling software
PULSE Approved for Aircraft Noise Certification
PULSE has been approved to international standards for aircraft noise certification
Miniature, Multi-Functional Air Data Probes for UAVs and Light Aircraft
Full Air Data Sensing in Miniature Packaging
Class 1 portable noise monitoring system
Brüel & Kjær release battery- powered, weather-proof Class 1 noise measurement Kit
Brüel & Kjær has launched the world’s first multi-field measuring microphone - a unique ¼” transducer with the same low noise floor as a ½” microphone
Send and Seek Service
Bruel & Kjaer UK service centre launch online tracking tool
Brüel & Kjær launches intuitive data analysis software: PULSE Reflex
Discount for standard surface microphones
on standard surface microphones
New Look for Bruel & Kjaer Website
Improved look and layout for Bruel & Kjaer UK Website
Robust, Reliable and Remote
Brüel & Kjær introduces the new Noise Monitoring Terminal 3639-A/B
Brüel & Kjær launches updated software for hand-arm vibration meter
Students Help Eliminate Noise Disturbance
Brüel & Kjær Assists University’s Environmental Project
New Noise Parameters
Bruel & Kjaer launch updated sound level meter applications
Taking the Mic...
Brüel & Kjær launch latest Microphone and Accelerometer catalogues
Brüel & Kjær and Lochard Join Forces
Brüel & Kjær announces the acquisition of Australian company Lochard Ltd. with the intention of providing customers with world-class Environment Management Solutions.
Bruel & Kjaer Launch High Temperature Accelerometers
Bruel & Kjaer launch an accelerometer capable of continuous operation up to 180°C.
Brüel & Kjær gets low noise down under
New Zealand based Wind Farms use Bruel & Kjaer Noise Monitoring Terminals for low frequency monitoring
Noise testing for dummies
Bruel & Kjaer UK’s HATs Mannequin used for Noise Action Week Demo
NVH testing on the move
Binaural recording and analysis is now much simpler and quicker to perform with the launch of Bruel & Kjaer’s super-slim PDA-based tool, SoNoScout NVH.
Remote noise test helps keep festival peace
Festival fans and local residents were in complete harmony during Ireland’s Oxegen music festival, held in June at the Punchestown Racecourse, as the local County Council used a wireless network to monitor noise levels in surrounding areas.
Brüel & Kjær launches Predictor™ 7810 software
Brüel & Kjær launch latest version of Predictor software
Point and Click with PULSE 13
Sound and vibration testing is set to become a one button task with the launch of Bruel & Kjaer’s latest addition to its PULSE data analysis platform family - PULSE 13.
Bruel & Kjaer Announce Sound & Vibration Workshop
Bruel & Kjaer has announced it will run a free technical workshop with practical, demonstration-oriented sessions, including a full vehicle simulation test, on 12th November.
Angle of Attack Sensor for Small and Mid-Sized Aircraft
SpaceAge Controls launches angle of attack (AOA) sensors
Get the complete picture
Bruel & Kjaer launch 360-degree noise mapping tool.
LDS Test and Measurement joins Brüel & Kjær
LDS Test and Measurement joins Bruel & Kjaer.
Brüel & Kjær Appoints New Managing Director
Lars Rønn has been appointed Managing Director of Brüel & Kjær Sound & Vibration Measurement A/S.
Trial by Tyre
New Multi Channel Data Acquisition Hardware: proven endurance
Instant sound insulation feedback from Bruel & Kjaer
Rapid, on-site assessment tool for building regulation compliance.
Kids (Very) Aloud
Merstham kids club louder than a Jumbo Jet
Safety first with Bruel & Kjaer
Meet ‘Noise At Work’ rules with Bruel & Kjaer’s Dose meters
It’s in the bag
Bruel & Kjaer UK launch ready-to-use noise monitoring system.
Stock Up at Brüel & Kjær’s Stock Clearance
Brüel & Kjær has launched a dedicated ‘stock-sale’ web page
Copenhagen Airport chooses Brüel & Kjær for new noise and flight monitoring project