Monday, April 20, 2020

Covid-19 has not stopped OROS’s activities, far from it…

Staying at home makes people very creative!
Discover two application videos made by two OROS employees (Youtube)

  • one is based on an indoor exercise machine by Yannick Balter, OROS services dept manager
  • the other one focuses on a lawn mower by Nicolas Denisot, OROS application engineer

Both use an OROS instrument to measure vibrations!
Take care, be safe and stay home.

OROS has actively implemented a new working organization. Most people are now working from home, remaining extremely efficient. The manufacturing department is fully operational and all systems are being manufactured. Our maintenance centers are all open and fully operative.
Read the full article plublished on March 23rd: OROS adjusts its organization due to Covid-19

Friday, April 17, 2020

Sound Power determination for earth moving machines in compliance with ISO 6395

Determination of the sound power level of earth moving machines requires specific procedures, based on the guidelines of ISO 6395.
The standard is based on ISO 3744, for an acquisition of sound pressure level using 6 microphone positions. The measurement sequence and reporting must be extensively automated.

To optimize the day-to-day efficiency of our users such as Komatsu, Mecalac and others, the OROS Sound Power solution has been further enhanced in the new 3.10 software version, allowing even more flexibility in terms of customised adaptations.

Monday, March 23, 2020

OROS adjusts its organization due to Covid-19

As you may know, Covid-19 has reached Europe. In order to combat the epidemic, the French government has imposed temporary rules requiring people to stay at home, with limited exceptions.

OROS has actively implemented a new working organization.

In a few hours, people able to work from home have moved to their new office.
Analyzers, sensors, cables, desktop PCs, screens, etc. have been packed and carried away from OROS premises.
R&D department is now empty...

The manufacturing department is fully operative. Systems can be manufactured.
Working conditions have been adjusted to comply with sanitary regulations and guidelines issued by the government.

Our maintenance centers are all open and fully operative.

Most people are now working from home using remote working techniques and tools. This organization of working practices is extremely efficient. All your contacts are available as usual.

In all locations, all members of the OROS team remain professional and committed to working with you.

Take care of yourselves and your relatives in the coming days.

Thursday, September 19, 2019

POMA, a world leader in ropeway transportation, trusts OROS with structural dynamics of their installations

POMA is a world leader in ropeway transportation. From snowy slopes to urban settings, from tourism to science and industry, the POMA group has made ropeway transportation the future of comfortable and sustainable mobility. They have built over 8,000 installations in over 80 countries.

They have recently chosen OROS to improve their knowledge of the structural dynamics of their installations. These installations are either located in ski resorts or in urban areas. In cities all over the world, POMA is making ropeway transportation the traffic management solution for ever-increasing urban populations, connecting suburban areas to city centers.

Monday, May 13, 2019

OROS Testing Room

A new testing room is now open at OROS. This room is fully dedicated to noise and vibration testing. It is a base for applied training events as well as for client tests. It is equipped, amongst other things, with an anechoic chamber, a rotating machine, a structure assigned to modal testing, an acoustic antenna for holography and special speakers for sound quality testing.

The anechoic chamber is used for sound power measurements (see images: an eletric driller under test and Corentin setting up the project)

The latest version of ORBIGate is being tested using the rotating machine. Measurements are made with an OR36 coupled with accelerometers, tachometers and proximity probes.

Assessing the vibration behaviour of generator stator end-windings - Laborelec, GDF Suez

Generator stator end-windings are submitted in operation to a combination of complex electromagnetic and mechanic forces. These forces recurrently lead to the early ageing of the end-windings through the appearance of white dusting and greasing detected by inspections during overhaul. The vibration behaviour of the end-windings is regularly depicted as one of the main
contributors to the root cause. Based on OROS instruments, Laborelec offers a complete methodology specifically developed for the vibration assessment of generator stator end-windings. This methodology is universal for all machine types and is independent from the generator manufacturer.

Read the full application note on myOROS (first log in to myOROS or create an account). Laborelec, GDF Suez

Monday, May 6, 2019

Experimental verification of underwater noise localization based on cylindrical near-field acoustic holography

Paper presented during the Technology Workshops Teledyne Marine in Cannes, France in October 2018 by Guillaume Cousin, OROS Solutions Product Manager.

To improve the stealthiness of underwater vehicles, or reduce impacts of vessels on the marine environment, it is necessary to identify their noise sources. Furthermore, the proper acoustic control and management of underwater noise radiation of vessels is critical during the intended upgrades and operational service.