type 1 sound level meter Articles

  • What to look for when buying a sound level meter

    Sound level meters: a matter of class  Since sound level meters, or slm's were invented, they have existed in various grades of accuracy.  Today, accuracy is referred to as 'Class' and the reason behind all this rests with the ...


    By Pulsar Instruments plc

  • 50th anniversary of world`s first sound level meter

    Sound Level Meter Celebrates 50th Anniversary 2010 is the year we celebrate the 50th anniversary of Type 2203, the mother of all sound level meters. It was the world’s first precision hand-held and transitorised sound level meter. Produced for 21 years, it sold a record number of 17300 units. With its upgrades Type 2204 (Impulse time constant) and 2209 (peak detector), it accounted for a ...

  • Ask The Noise Doctor: How Long will the Batteries Last in My Optimus Sound Level Meter?

    Do you have questions about your noise measurement instruments that Google or Wikipedia just can’t seem to answer? Ask The Noise Doctor. I’m here to answer your most frequently asked questions. Whether it’s product or application based, I’m up to the challenge. In this article I’ll be covering battery life in the Optimus Sound Level Meter range. A Commonly Asked ...


    By Cirrus Research plc

  • 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

  • Noise Monitors and Meters

    Sound level meters Description and ApplicationsThe sound level meter is a lightweight instrument for the measurement of sound pressure level (SPL) in decibels. All ANSI-approved meters meet minimum requirements that include an A-weighted network, a slow-response meter characteristic, and a fully graduated scale with measurements ranging from 80 to 130 dBA. The Type II meter is most frequently ...

  • Are Those Inexpensive iPad Sound Measurement Apps Any Good?

    Are those inexpensive iPad sound measurement apps any good? Are they as accurate as a properly calibrated $2,000 type 2 sound level meter? Let's review three separate studies, and an article: Study #1 In early 2014, NIOSH reviewed 192 sound measurement apps. NIOSH concluded, ...

  • 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

  • Sea Level Rise: Risk and Resilience in Coastal Cities

    Introduction One of the most dire impacts of anthropogenic climate change is a rise in the global sea level caused by the melting of glaciers and land-based ice caps, as well as a smaller increase from expansion due to the higher temperature of the water itself.  Unlike some other predicted effects of climate change, this impact has already been observed for some time.  Indeed, ...


    By Climate Institute

  • 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. ...


  • NASA acts to reduce crawler transporter noise

    The United Space Alliance sought outsideassistance to evaluate and develop noise controlmeasures for NASA’s two CTs at KSC aspart of a modernisation and upgrading program.NASA selected Noise Solutions Inc. (ageneral acoustical contractor) and their subcontractorFaszer Farquharson & Associates ofCalgary, Canada to engage in this project. Thefirst phase of the sound study ...

  • Ask Yourself These Questions Before You Buy a Granulator

    Ask Yourself These Questions Before You Buy a Granulator 1 WHAT DO YOU WANT TO GRIND? * Consider: Type of part or sprue/runner system, type of material (hard/soft, brittle/tough, filled/unfilled), and temperature of parts being granulated. * Determines: Rotor design, horsepower, sound attenuation, ...


    By Harden Industries Ltd.

  • Optimus and doseBadge Adapt to New Challenge - Case Study

    Established in 1934, Lindapter International is the world’s innovator of steelwork clamping systems, eliminating the requirement to drill or weld steel.  The company designs and manufactures specialist products for connecting structural steel sections together and  has more than 85 years’ experience in its field. The company’s success is the result of its dedication ...


    By Cirrus Research plc

  • 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

  • RO monitors and Controllers: pros and cons

    A look at a range of devices for watching TDS. One major question a potential customer may ask before they purchase a point-of-use/point-of-entry (POU/POE) water treatment system is, “How often will I need to change the filter?” Maintenance and service are directly related to two of their major concerns: money and health. People don’t want to spend money unnecessarily, yet they ...


    By HM Digital, Inc.

  • Manage the rise in deafness claims with Pulsar Instruments

    The recent reports in the press about insurance groups complaining of a sharp rise in claims from employees seeking compensation for hearing problems have highlighted the real risks of noise induced hearing loss and the importance of protecting employees in the workplace. Although employees are protected by Law, noise induced hearing loss is often ignored. And once hearing loss has occurred, it ...


    By Pulsar Instruments plc

  • Fine-tuning acoustic isolation in buildings

    ACCIONA Infrastructure is ranked among the leading construction companies in the world - and is recognised for implementing the most advanced and innovative technology.  As research and design is vital to keep the company at the cutting edge in relation to technological developments, ACCIONA Infrastructure created a team to analyse noise and vibration. Where traditional ...

  • 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

  • Does traditional calibration hide errors in your demand analysis?

    Untitled Document A well-calibrated water distribution model can address numerous ...


    By Innovyze

  • Brüel & Kjær’s radiation-resistant accelerometers

    Carrying out vibration measurements in harsh industrial environments is much easier for engineers with Brüel & Kjær’s new Type 8347-C Accelerometer. The Type 8347-C accelerometer can withstand temperatures ranging from -196°C (-321°F) to +482°C (+900°F) and has high resistance to radiation. The shear design ensures the accelerometer  superior thermal ...

  • ITS marketing manager quoted in WaterTech

    Professional, ethical testing will start you off on the right foot and will directly determine which services the customer may need. Many substances could be in a customer’s water, but, “It’s not necessary to test for every parameter; that’s what labs are for,” advises Rob Samborn, director of sales and marketing for HM Digital, a Los Angeles-based maker of water ...

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