Exposure – the most common error

The most common error in the assessment of the exposure of workers to vibration is related to the assigned exposure times. In the case of hand-arm, only the time should be counted. […]

Evaluation of vibration in buildings – discomfort and integrity of structures

The effects of vibrations in buildings and other structures, can be multiple, but are the highlight, as most important, the effects on people and in the integrity of the structures. […]

Industrial ship noise reduction – case study

It is still common to occur, under pressure of circumstances and with some ignorance of current capabilities of the acoustical engineering, the implementation of massive investments, made more or less loose, in measures […]

NP2074 – aplicação obrigatória por lei

A 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 from […]

Renewal of accreditation for testing to be carried out in accordance with the NP2074

The dBwave renewed your accreditation for conducting evaluation test of impulsive vibrations in structures, According to the NP2074 standard:2015 by IPAC – Portuguese Institute of […]

Effects of continuous vibrations in structures DIN 4150-3

Unlike 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 […]

Evaluation of discomfort caused by vibrations BS 6472-1

Evaluation of discomfort caused by vibrations BS 6472-1 Accreditation according to ISO 17025 Unlike what happens in other countries, the criteria for evaluating discomfort generated by […]

PASSARO – Clean Sky 2

A dBwave.i colabora com o ISQ, in PASSARO project (Capabilities for Innovative Structural and functional testing of aerostructures), performing tests acústicos.O PASSARO project, started in July and aims to […]

Accreditation by the Junta de Castilla y León to carry out noise tests

The dBwave was believed by the Junta de Castilla y León, as "Evaluation entity" for the testing of acoustic and vibration. You can see the list with the entities […]