Noise and Vibration Product News

Spektra handheld shaker, calibrator

Spektra Handheld shaker introduction to Thailand

** SPEKTRA Calibrator CV-01Handheld Shaker
• Quick, simple and mobile in-field inspection/calibration of vibration transducers
• Easy in-field inspection of sensor wirings ofmachines
• Quick and easy error search on vibrationmeasurement chains of machines
Application Fields
• Calibration laboratories
• All industrial branches
• Engineering offices
• Educational institutions
• Including international recognized DAkkScalibration certificate
• 16 mm diameter of the coupling area for anoptimal linkage of the DUT
• Sensor mounting with 1/4’’ - 28 thread
• Suitable for DUT masses up to 150gram
• Tare weight of 950gram allows a very reliable calibration because of the high reaction mass
• Very easy to use
• Automated switch-off after 60s and manual adjustable continuous operation
• Rugged calibrator housing for highest reliability
• Practical, ruggedized transportation case
• Included accessory:
• Mounting Stud 1/4-28 to 1/4-28
• Mounting Stud 1/4-28 to 10-32
• Adhesive Mounting Base 1/4-28 to Hex 3/4“
• 8 batteries
• Comprehensive accessory optional available
(check accessory list)
For more info download the datasheet:

Download Datasheet Spektra Handshaker

Noise and Vibration Product News

Nor150, 2 channel handheld analyzer with intensity probe !

Nor150 is now type approved by BEV in AustriaPTB  in Germany and METAS in Switzerland!

The sound and vibration analyser Nor150 sets new standards in user-friendliness. Featuring the largest colour touchscreen in a handheld meter on the market today, the Nor150 provides the user friendliness of a smartphone. Further features include, built in web server, camera, GPS and advanced voice and text notes bringing the sophistications normally found in laboratory instrumentation out in the field.

The instrument is a dual channel analyser designed to cover a variety of applications such as environmental noise assessments, sound insulation and sound intensity measurements among many other measurement tasks.


  • Environmental noise assessments
  • Noise monitoring
  • Noise at work
  • Product noise testing
  • Vibration measurements


  • Large color touch-screen (4.3”).
  • Intuitive user interface with graphical icons for selection of mode and custom made user setups. Markers edited directly on the touch screen. Real keyboard for quick operation in challenging environments.
  • Built in web-server makes your Nor150 available through the internet from anywhere in the world whether you configure it for LAN, USB, WLAN, GPRS, 3G or 4G communication.
  • Audio recording on trigger or softkey.
  • You can immediately listen to recordings using a standard headset.
  • Voice and text notes, built in GPS and camera notes help you document your measurements with all.
  • Wide frequency range for vibration and low frequency measurements (0,4 Hz – 20kHz in 1/3 octave band).
  • 120 dB measurement range broadband and filter.
  • Seamless integration with Nor850 software.
  • New features added to Nor150 Remote, including camera support, alarms etc.
  • Profile B report with trigger possibility.
  • Profile Moving report with trigger possibility.
intensity probe Norsonic for uase with Nor150
intensity probe Norsonic for uase with Nor150

Future Proof

Your Nor150 analyzer is designed to be expanded and upgradeable to give you a complete measurement tool for years to come. Norsonic’s retrofit policy ensures regular software updates with new features and new options followed by a 3 years warranty. As a general noise analyzer, advanced environmental and occupational noise meter you can be sure your Nor150 will be up to date as requirements and standards change over the coming years.

Coming soon will be the following applications:

  • Sound Intensity
  • Reverberation time
  • Single and dual channel sound insulation
  • Unattended noise monitoring scheduler

For more info Norsonic Asia.

Asia Noise News

Asia, noisy motorbikes what to do about it ?

Summary: Tuning the engine and changing the brake system is another method.According to mechanics, noisy silencers are imported from Bangkok, Taiwan and China and priced anywhere between Rs 8,000 and 35,000. “After the cops are gone, they return on the streets, which they use as a racing track. “In India, copies of original imported silencers are created to meet increasing demand from youngsters. While silencers from Punjab are said to be the noisiest and mostly meant for Bullet bikes, those from Jaipur and Bangalore emit a typical racing bike-like sound. Apart from these silencers, there are also boosters that are forcibily fitted on to a bike’s silencer to create bike racing-like sounds,” said Akleem Ansari alias ‘Chhoto Mechanic’ from Agripada.

While bikes with modified exhaust pipes that can wake up the dead with their ear-defeaning firing sound are on the rise, the number of bikers who are being booked for riding them has been on the decline over the past few years. This year till date, merely 18 bikers have been booked for the offence and fined Rs 6,000 compared with 56 cases and Rs 20,500 collected in fine in 2015—again a dip from 77 persons booked and Rs 28,000 penalty collected in 2014.These bikes are a major source of noise pollution in the city. TOI has been running a campaign against noise pollution in association with Awaaz Foundation Few in the city are aware that any alteration to a factory model is illegal under the Motor Vehicles Act , 1988.

Any alteration that results in an up to 10% increase in the weight of a vehicle must be done with the manufacturer as well as the regional transport office’s consent.While changes to exhaust pipes are not allowed, removing the catalytic converter, a component fitted to the exhaust pipe, is the easiest way to boost a bike’s vroom. Tuning the engine and changing the brake system is another method.According to mechanics, noisy silencers are imported from Bangkok, Taiwan and China and priced anywhere between Rs 8,000 and 35,000. These can be fitted onto cars too.

Source: Indiatimes

Asia Noise News

Mumbai, India, Govt builds flyovers over homes, but cites fund crunch for not installing noise barriers

Mumbai: In a city with over 50 flyovers, most of which run past residential areas, barely half a dozen have been fitted with the mandated barriers which can bring noise levels down. This, despite repeated complaints by residents in various areas and an amendment to Development Control rules (DCR), which makes it compulsory to install them.
The barriers have to be installed by the Mumbai Metropolitan Region Development Authority (MMRDA) and the Maharashtra State Road Development Corporation (MSRDC), which built most of the flyovers. Both cite shortage of funds as the main reason for the violation. Considering that barriers would cost roughly Rs 6-7 crore per flyover—a fraction of the cost of building a flyover—the explanation does seem odd.
In Mumbai, noise barriers for flyovers first became a reality after BMC and MMRDA officials travelled to Italy in 2011 to study the concept of noise reduction. Apart from flyovers, a 1,500-metre noise barrier was also erected by MMRDA along the Indian Institute of Technology campus perimeter in 2012 and on the Kalanagar stretch at Bandra-Kurla Complex. These were panels of pre-galvanized sheets, painted in keeping with the aesthetics of the surroundings and mounted on the flyovers. If placed correctly, they lower noise by up to 17 decibels, according to studies done by Awaaz Foundation (TOI’s campaign against noise is in association with this NGO).
Some more have been erected on Sion Hospital, King’s Circle, Hindmata and Dahisar flyovers. On the 16.8km Eastern Freeway, which connects P D’Mello Road in south Mumbai with Eastern Express Highway at Ghatkopar, too, there are stretches where barriers are visible. A few of them are of inferior material though, and serve only to block the view into nearby areas while others may be in inappropriate locations.
Anti-noise activist Sumaira Abdulali said there is an urgent need for scientific studies to be done before erecting barriers. “For example, noise barriers have been erected on the Sion flyover. Instead, these should have been erected near the Sion Circle junction where there is continuous movement of vehicles. There is a need for a noise-mapping study or else the infrastructure may not prove to be useful at all. Noise barriers are more helpful when erected at heavy traffic junctions. In case of BKC, barriers were put at the request of the residents and they are happy with it. This is what the authorities should look at doing instead of randomly placing them on any flyover,” said Abdulali.
MMRDA officials said there are plans to install them on two more flyovers on the Eastern Expressway, but there are no deadlines as of now and there is no clarity on whether studies are being undertaken.
In case of MSRDC, of the 23 flyovers it built in the Mumbai metropolitan region, only one in Thane at Kapurbawadi has noise barriers at present—residents and commercial establishments along the remaining 22 have to cope with the sound pollution that easily goes beyond the permissible 45-65 decibels range.
The agency, which has a budget of a few hundred crores, though, says it is now in the process of finalizing a proposal to build barriers on JJ flyover more than 15 years after its completion.
“People living along JJ flyover have demanded such barriers but it all depends on the state and financially sound agencies like MMRDA who can make funds available for the purpose,” a senior MSRDC engineer told TOI .

Mumbai flyoverws noise nuisance
Mumbai flyoverws noise nuisance

MSRDC, which built the Bandra-Worli sea link, cites poor finances as the reason for lack of initiative on its part. The agency has scores of important flyovers to maintain such as the ones at Sion, J J, Vakola, JVLR, Duttapada, Aaarey Colony, Kandivli, Borivli National Park, Nitin Cadbury, Teen Hath Naka and Golden Dyes. It has contracted work of maintenance of these flyovers and certain subways to Mumbai Entry Point Toll, which collects toll against their maintenance at five toll posts—Vashi, Airoli, Mulund, LBS and Dahisar—on the city’s fringes.
According to MSRDC officials, only flyovers within a 30-metre distance from residential buildings need barriers; those who live beyond may not get disturbed. They said barriers on flyovers only cut the sound emanating from vehicles taking the flyovers. Noise from those zooming below the viaducts remains unchecked. To make residential areas fully sound-proof, such barriers are needed along building boundaries as well. Mumbai has two road stretches—one at BKC along Matoshree in Kalanagar and the other at IIT, Powai campus on JVLR—which have barriers erected by MMRDA along the road to obstruct noise of vehicles entering these areas.
Sion resident G R Vora from the F-North Ward Citizens’ Federation said authorities need to analyze and do research before erecting noise barriers. “In case residential buildings are near flyovers, these barriers has helped but in case of barriers which have been erected on the Sion hospital flyover the buildings and the hospital are located at a distance and therefore it is not proving to be very useful,” said Vora.

Source: http://www.indiatimes.com