Noise and Vibration Product News

SPEKTRA FECB, Final Electrical Calibration Bench

SPEKTRA FECB, Final Electrical Calibration Bench

The new FECB is launched and there are 2 datasheets available, one shows the laboratory version, the other one the mobile version.

Both Final Electrical Calibration benches will allow the electrical calibration of all CS18 – VCU´s.

SPEKTRA developed the mobile version of the FECB for onside calibration of systems, which cannot leave the facilities of the customer. It will come in two stable and re-usable shipping containers. For sure, the mobile version of the FECB is suitable for stationary laboratory usage.



Asia Noise News

25% of Chinese cities struggle with noise pollution

(ECNS)–A silent night is a luxury for 25 percent of Chinese cities, according to a report by China’s Ministry of Environmental Protection.

Among 308 Chinese cities that measured noise levels last year, about 92 percent were within limits during the daytime, but 74 percent were too loud at night, the report said.

Provincial capitals had better readings than lower level cities, according to the report.

A women surnamed Zhang from Zhuhai, Guangdong Province, has long been bothered by the food market below her window.

“The noise usually lasts from around 8 p.m. till 2 a.m. the next day. Every night I can barely sleep,” said Zhang.

The report said the ministry received some 354,000 complaints about noise nationwide last year, accounting for 35 percent of all pollution complaints -falling only behind air pollution.

Among the complaints about noise, half concerned construction work, 30 percent were related to social and commercial activities, 16.9 percent came from industrial production and 12 percent from transportation.

Experts at the Shandong Academy of Environmental Sciences said noises measuring 40 to 50 db are enough to break deep sleep. Long-term exposure to noises over 60 db can affect hearing and may lead to deafness.

Noise and poor sleep can also aggravate tinnitus and heart problems, the experts added.

In 2015, China published nine national and local standards for noise control. Local governments also rolled out eight related laws and regulations to tackle the problem.

Gan Hui, an associate professor at Fujian Normal University, said noise pollution is usually overlooked because it is invisible.

Cheng Mingkun, a researcher from the Institute of Acoustics at the Chinese Academy of Sciences, said the ambiguity of regulatory responsibility contributes to the weak effort to control noise pollution.

He added that government departments should clarify their liabilities and step up coordination to tackle the problem.

Other experts suggested measures such as better city planning and severe punishments for violators.


Asia Noise News

Quiet Thailand Loud music banned on Phu Thap Boek, offender fined

Quiet Thailand Loud music banned on Phu Thap Boek, offender fined

PHETCHABUN – Holidaymakers visiting popular Phu Thap Boek in Lom Kao district have been warned not to make a loud noise after 10pm or they will be asked to leave the scenic mountain.

The announcement of the restriction came as a 38-year-old man who played loud music while holidaying on Phu Thap Boek reported to police in Phetchabun on Thursday. Thaen Jai-eua, of Suphan Buri’s Song Phi Nong district, was charged with causing a public nuisance and fined 1,000 baht, reduced to 500 baht because he confessed. Deputy Phetchabun governor Kaisorn Kongcha-lard had  ordered district authorities to take action after a video clip of the partying tourist went viral on social media.

Mr Taen told police on Thursday he worked as a system installer at a car audio shop in Phitsanulok and had been at Phu Thap Boek for the first time. He admitted he was impetuous in playing music so loudly on his  car stereo system at 9pm, and again in the morning.


Noise and Vibration Product News


Dytran Vibracorder


16g or 200g range
records 3-axis vibration up to 24 hours
IP64 rated
SDHC card compatible
Dual monitoring configurations
mounting via screws/magnets

Dytran vibracorder
Dytran vibracorder

Read more.

Asia Noise News Noise-th


Cambodian villagers are worried that the few remaining Irrawaddy dolphins in a pool in the Mekong River could die off as they are forced to migrate upstream into Laos to escape disturbances caused by the construction of a massive hydropower dam project, local residents and activists said Thursday.

Only three endangered Irrawaddy dolphins, also known as Mekong River dolphins, are now left in the Cheuteal transboundary pool between southern Laos and northern Cambodia’s Stung Treng province, whereas eight were in the area in 2010.

Members of the Preah Rumkel ecotourism community in the province’s Thalaborivat district said Irrawaddy dolphins have been moving two miles upstream into Laotian waters because of noise from explosions at the construction of the 260-megawatt Don Sahong Dam along the Mekong River in southern Laos, less than a mile from the Cambodian border.

The small Mekong River village of Preah Rumkel was set up in 2007 with assistance from an environmental NGO as a community-based ecotourism site to support the local community and improve residents’ livelihoods. Community members manage the tourism site themselves. The half-completed dam lies about one kilometer (0.6 mile) away from the community.

Besides the noise from the dam construction site, the chemicals discarded into the river by construction workers have also forced the dolphins upstream, said Phay Vanna, a member of the Preah Rumkel ecotourism community.

He said he wants the Cambodian government to hold Laos, which is building the dam, accountable.

“I would like the prime minister and civil society organizations to send some experts to conduct additional feasibility studies to hold Laos accountable for the impact caused by the dam’s construction,” he said. “I am a community member. I have witnessed the real impact.”

Gone for good?

Residents are also concerned that their incomes will fall as fewer tourists visit the area when the dolphins are gone for good.

Once in Laotian waters, the Irrawaddy dolphins may succumb to gill nets—vertical panels of nets lined up across a river to catch fish—whose use is not prohibited in Laotian waters as it is in Cambodian ones.

Switzerland-based World Wide Fund for Nature (WWF) says use of the nets is one of the main reasons for the decline in the population of Irrawaddy dolphins, which become entangled in the nets and drown.

The organization wants gill nets banned from a two-kilometer (1.2-mile) radius around the Cheuteal Pool, where they are currently in use, and increased enforcement against fisherman who violate the ban.

Huoth Seng, a Preah Rumkel villager, said he is not happy with recent remarks by Cambodian Prime Minister Hun Sen regarding his approval of the Don Sahong Dam.

On Nov 23, during a meeting in Siem Reap with leaders from Laos and Vietnam about development in the Golden Triangle area, Hun Sen said feasibility studies had been conducted and that the dam project would have no impact in terms of lack of water or fish migrations.

But the dam construction is affecting several thousand families who rely on selling souvenirs, accessories, and food to tourists who come to see the dolphins, he said.

“I didn’t see any transnational studies or research on the impact of the dam project,” he told RFA’s Khmer Service. “What I have seen is that the project is implemented. Now that the communities have been impacted, I wonder who will be held accountable.”

irrawaddy dolphin scared from noise of dam construction site cambodia
irrawaddy dolphin scared from noise of dam construction site cambodia

‘We don’t agree with him’

Civil society groups also accuse the prime minister of turning a blind eye to other issues related to the dam’s construction that are affecting thousands of people in the area.

Ek Chamroeun, coordinator of the Fisheries Action Coalition Team (FACT), a group of NGOs that advocate for fisheries issues and monitor policy reforms, said the dam project has also been a disaster for food security.

“Though Hun Sen said there is no impact, we don’t agree with him,” he said. “We are concerned because we see the real impact on the communities regarding the dam project.”

According to WWF, the Irrawaddy dolphin population has dropped by 50 percent this year in Cambodia, and the large aquatic mammals are functionally extinct in Laos with too few potential breeding pairs available to ensure the population’s survival.

About 80 Irrawaddy dolphins remain in the Mekong River in Cambodia.

Reported by Sothy Men for RFA’s Khmer Service. Translated by Nareth Muong. Written in English by Roseanne Gerin.

Source: http://www.rfa.org/english/news/cambodia/cambodia-villagers-say-dam-construction-is-forcing-endangered-dolphins-upstream-12082016162753.html