Highlights

Exposure – the most common error
The most common error in the assessment of the exposure of workers.

Evaluation of vibration in buildings – discomfort and integrity of structures
The effects of vibrations in buildings and other structures,…

Industrial ship noise reduction – case study
It is still common to occur, under pressure of circumstances and with ...






NP2074 – aplicação obrigatória por lei
/in,en Tidings /by,,en,LISBOA,,en carlosaroeiraA Norma Portuguesa NP2074:2015 é de aplicação obrigatória a partir de 14 de janeiro de 2018 According to the Order 19/GND/2017, da POLICIA DE SEGURANÇA PUBLICA, from 14 de julho de 2017, a partir de 14 de janeiro de 2018, é obrigatória a realização de monitorização de vibrações de acordo com a NP 2074:2015, […]
Renewal of accreditation for testing to be carried out in accordance with the NP2074
/in,en Tidings /by,,en,LISBOA,,en carlosaroeiraThe dBwave renewed your accreditation for conducting evaluation test of impulsive vibrations in structures, According to the NP2074 standard:2015 by IPAC – Portuguese Institute of Accreditation, According to ISO standard 17035. Mining and geotechnical activities that induce dynamic stresses on the land, namely: the dismount of rock masses […]
Effects of continuous vibrations in structures DIN 4150-3
/in,en Tidings /by,,en,LISBOA,,en carlosaroeiraUnlike what happens in other countries, the criteria for evaluation of the effect of continuous vibrations in structures are not set out in legislation, in Portugal. To fill this gap the dBwave believed the realization of evaluation of continuous vibrations in structures, According to the methodology of the DIN 4150-3:1999, by IPAC.
Evaluation of discomfort caused by vibrations BS 6472-1
/in,en Tidings /by,,en,LISBOA,,en carlosaroeiraEvaluation of discomfort caused by vibrations BS 6472-1 Accreditation according to ISO 17025 Unlike what happens in other countries, the criteria for evaluation of discomfort caused by vibrations are not laid down in legislation, in Portugal. To fill this gap the dBwave believed the realization of evaluation of discomfort generated in […]
Evaluation of exposure of workers at vibrations – frequency weighting
/2 Comments/in,en Technical Articles /by,,en,LISBOA,,en carlosaroeiraFREQUENCY RESPONSE of HUMAN BODY to realize the reason why humans are more sensitive to some frequencies than others is useful to consider the human body as a mechanical system. The system is complicated by the fact that: (a) each body part has your greater sensitivity in different […]
Predicted noise levels within enclosures
/in,en Technical Articles /by,,en,LISBOA,,en carlosaroeiraThe need to reduce the noise to acceptable values is an important priority for many companies. These noise reduction actions are often concerned significant investments, and we must ensure the success of the project and minimizing their costs, and this is a major concern of those responsible. Give the importance of existing […]
PASSARO – Clean Sky 2
/in,en Tidings /by,,en,LISBOA,,en carlosaroeiraA dBwave.i colabora com o ISQ, in PASSARO project (Capabilities for Innovative Structural and functional testing of aerostructures), performing tests acústicos.O PASSARO project, It started in July and aims to develop and test materials, to integrate innovative technologies to improve safety, efficiency and sustainability of aircraft. This project was […]
Accreditation by the Junta de Castilla y León to carry out noise tests
/in,en Tidings /by,,en,LISBOA,,en carlosaroeiraThe dBwave was believed by the Junta de Castilla y León, as "Evaluation entity" for the testing of acoustic and vibration. You can see the listing with the accredited entities, where is the dBwave, in here.
Environmental Impact Study of the gold mine in Goiás Cascavel
/in,en Tidings /by,,en,LISBOA,,en carlosaroeira