Get the Low Down on Low Frequency

Press Release:
  Aug 1, 2012 — Many local authorities and consultants receive complaints about very low-frequency noise, but the subsequent investigations can be difficult and time-consuming to make.

To help environmental officers and consultants overcome this problem, Brüel & Kjær has created a simple kit combining it’s Low-Frequency Pressure-field ½” Condenser Microphone (Type 4193) and sound level meter (2250 or 2270) making it possible to measure broadband down to 1Hz (-1dB @ 0.5Hz).

The meters can be equipped with frequency analysis software (BZ-7223) which provides 1/3 octave analysis down to 6.3Hz centre frequency and/or Fast Fourier Transformation application (BZ-7230) offering analysis down to 1Hz.

Brüel & Kjær’s 2250 and 2270 sound level meters - along with the 4193 microphone - have been fully documented for compliance with IEC 61672.

For more information about Brüel & Kjær’s low frequency kit, please contact


About Brüel & Kjær

Brüel & Kjær is a world-leading manufacturer and supplier of sound and vibration solutions for use in a wide range of applications including: environmental noise measurements, building acoustics, vibration measurements and quality control for use in the automotive, aerospace and consumer industries, as well as by local authorities.

We design and manufacturer sound level meters, microphones and accelerometers, conditioning amplifiers, calibrators, noise and vibration analysers and software. To see our full range and for more information, please visit or contact our sales team: telephone +44 (0) 1763 255 780 or email:

Brüel & Kjær also runs a variety of training courses throughout the year, from basic introductions on noise and its effects to more specialised classes teaching customers how to get the most out of their equipment. To see our full training course calendar, visit:

Free, online training courses - conducted by our expert engineers - run throughout the year too. For registration details and the latest planned web training sessions, visit:

Brüel & Kjær has two laboratories in the Royston Facility which are UKAS accredited to the international standard ISO/IEC 17025. Brüel & Kjær can provide traceable or accredited calibration for sound level meters, microphones, calibrators, artificial ears, conditioning amplifiers and accelerometers.

Brüel & Kjær is a subsidiary of UK-based Spectris plc ( which has annual sales of £1.1bn and employs around 7,500 people worldwide across its four business segments

For additional information please contact:
Heather Wilkins
Marketing Coordinator
Bruel & Kjaer UK Ltd
Telephone: 01763 255 780
For more information:
 Additional link: 
Tags: Bruel, Kjaer, sound, vibration, environment, noise measure, acoustic, automotive, aerospace consumer local authorities
Categorized Under: Analyzers
Company Details:
 Contact:Heather Wilkins 
 E-mail:heather -dot- wilkins -at- bksv -dot- com 
 Company:Bruel & Kjaer View Company Profile 
 Address:workJarman Way 
 Location:workRoyston, United Kingdom  SG8 5BQ 
 Phone:workpref01223 389800 
 Fax:fax01223 389918 
 Web Site: