environmental noise meter Articles

  • Noise Measurement

    Definitions Threshold and criterion levels The threshold level is the A-weighted sound level at which a personal noise dosimeter begins to integrate noise into a measured exposure. For example, if the threshold level on a sound level meter is set at 80 decibels (dB), it will capture and integrate into the computation of dose all noise in the employee's hearing zone that equals or exceeds 80 dB. ...


  • Noise Pole Power Station Noise case study

    Equipment Summary Invictus Environmental Noise Pole Noise-Hub Noise Management Software Before the Cirrus System was installed we could never investigate noise complaints properly ...


    By Cirrus Environmental

  • A Guide to Noise Measurement Terminology

    There are 100s of different acoustic parameters that can be used during your noise measurements. Each parameter can tell you something different the noise you’re monitoring. How do you remember what all this noise measurement terminology means and what it does? We’ve already covered ...


    By Cirrus Research plc

  • Noise, sound, decibels, hearing

    A decibel–a measure of sound. Like all short answers, this one leaves out a lot. When we hear a sound, its because our brain has received a nerve impulse from the nerve cells in the Inner Ear, which consist of a bone, called the Cochlea because it resembles a snail shell. These cells have long “hairs” that project into fluid inside the cochlea. There is a hole in the cochlea ...

  • Canarina CUSTIC software · background noise · ambient noise pollution · commands 13

    Bitmaps and scanned maps must be loaded into memory and then adapted to the program scale (we will make use of the Scale command). The X-Axis width (meters) in the program window can be easily changed to be able to compare both images (simulation results and background maps). Then, the X-Axis width (in meters) of the imported map and the X-Axis width (in meters) of ...

  • 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

  • What is Long Term Noise Monitoring?

    It might sound simple, but long term noise monitoring can mean different things to different people. There is no standard definition for what long term noise monitoring is, but here is a summary that covers the basics. I first presented this presentation at the IOA Eastern Branch meeting and wanted to share my thoughts on what classes as long term noise monitoring. I’ll also discuss ...


    By Cirrus Environmental

  • 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

  • What are the 4 Different Types of Noise?

    Noise comes in all shapes, sizes and sounds. It’s part of our everyday lives but before you can accurately measure it, you need to know what the different types of noise are. Here’s my advice. Whether it’s the innocent beep, a plane flying overhead or heavy machinery in your workplace, you ...


    By Cirrus Research plc

  • Canarina CUSTIC software · noise mitigation · commands 7

    The program window is a XY-plane (parallel to the land surface). A noise source is represented by a small square. In the Status bar at the bottom, we have X and Y coordinate values in meters and data on our environmental system. Point the mouse where you want in the program window and the X and Y values will be shown in the status bar at the bottom. On the left bottom corner, two different text ...

  • Where to use Outdoor Noise Monitoring Equipment?

    Noise monitoring equipment is required for environmental noise applications that need to be monitored over a period of time and where a hand-held sound level meter taking on the spot noise measurements would not be suitable. Noise Monitoring Equipment from Cirrus Environmental The Invictus range can ...


    By Cirrus Environmental

  • Police Use Casella Equipment To Assess Noise Levels

    Leicestershire Police has upgraded its noise monitoring equipment, selecting a Casella Health & Safety Kit in order to help to protect its officers. A global specialist in occupational health and environmental risk management solutions, Casella has supplied a 62x series sound level meter and a dBadge Noise Dosimeter to the regional police force, both of which are known to be easy to use, ...


    By Casella

  • Clutching At Straws to Come Up With Noise Level Solution

    The UK is renowned for its rich heritage in hosting outdoor festivals, whether it be music or literary, through to farming, food or catering to even more niche audiences. But every festival is unique and, no matter how large or small, they bring with them their own issues when it comes to health & safety and noise related ...


    By Cirrus Environmental

  • Noise Pollution – More Than Just an Inconvenience

    A raft of new global studies are all pointing to how noise pollution can seriously affect your health – and you don’t need to be living directly under a flight path to be affected. Separate studies carried out over recent years claim to have found links that noise pollution can affect everything from your waist size to the weight of unborn babies and even the recovery rate of ICU ...


    By Cirrus Research plc

  • INTA – exterior noise certification of Airbus A330 MRTT

    INTA is a Public Research Body specialising in aeronautic and space research and technological development. It owns a multitude of Brüel & Kjær products including a 30-channel PULSE system and a 6-channel LAN-XI system which are used daily. One of the latest and most important jobs performed by INTA is the Noise Certification of Airbus Military’s A330 MRTT which it achieved ...

  • ACOEM: DUO introduces the “Smart Noise Monitor”

    A new generation of Environmental noise measuring instruments, devoted to: Classical hand-held sound level meter measurements, using the built-in keyboard and screen or a wireless remote control (Wi-Fi, 3G), Short, medium or long-term stand-alone measurements, the operator having full remote control of the instrument. The “Smart Noise Monitor” DUO is ...


    By ACOEM

  • Uncertainties in Environmental Noise Assessments - ISO 1996 - Effects of Instrument Class and Residual Sound

    ISO/DIS 1996-2.2 (2005) “Acoustics — Description, assessment and measurement of environmental noise — Determination of environmental noise levels” contains guidelines on assessing the uncertainties of the determined sound pressure levels. This depends on the sound source, measurement time interval, weather conditions, distance from the source, measurement method and instrumentation. Guidelines on ...

  • 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 ...

  • Cirrus Research – Noise Measurement Pioneers for Over 45 Years [Video]

    Since 1970, Cirrus’ mission has been to make monitoring noise simple. More than 45 years later, we thought it was time to look back at our story so far and see what we have achieved. Join us by watching our video, which explores our history and what makes us the noise measurement pioneers that we are today. Cirrus Research ...


    By Cirrus Research plc

  • CR:243/4 noise pole – industrial power station case study

    “Before the Cirrus System was installed we could never investigate noise complaints properly because the data from the time of the complaint was not available in retrospect. We needed noise monitoring instruments that would store data continuously, with software to interrogate the monitors and download data, to give us a complete history of the noise levels at our boundaries. We have ...


    By Cirrus Environmental

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