TechnoFirst New from: the French specialist of the ANR (Active Noise Reduction) moved from month of April 2010, a wider range of ear muffs for sale online directly on the corporate website of the company.
Technology ANR (Active Noise Reduction) was invented and patented by the company's CEO, Dr. Christian Carme, a researcher at the CNRS, 20 years ago. TechnoFirst has developed several ranges of products using the active noise reduction, a complex process that few companies in the world totally mastered. It is indeed, to send a speaker a wave of phase with the noise to cancel or reduce substantially. To put theory into practice, the company uses complex algorithms to model and predict the sounds.
TechnoFirst has serious references. The company worked with the Navy to the soundproofing of the submarine nuclear deterrent. The noise-canceling headsets TechnoFirst are used by pilots of helicopters and tanks of the French army. To date, more than 500,000 people around the world would use the hearing protection system invented and patented in 1996 by TechnoFirst.
This specialist also designs silence silent active ventilation ducts and exhaust systems of trucks and aircraft propeller bubbles of silence for the jets, and has even developed a lift muffler shop for a famous Champs Elysées ... Collaborative projects with international groups are not lacking: the noise barriers for Vinci, the active acoustic booths for Caterpillar construction equipment and cabs of locomotives from Electro-Motive Diesel Inc. (EMD ) ...
TechnoFirst How does the helmet?
ANR technology uses a miniaturized electronic circuit board placed in the helmet shell. The device listens to the noise with a small microphone and a speaker sends sound in opposite phase will create a zone of silence near the ear.
Designed for noisy environments, headsets range Noisemater produce an attenuation which is between 30 and 45 dBA according to ambient noise. The attenuation at low frequencies from 15 dB passive mode (without the electronic device) to 40 dB in active mode, and operates in an environment up to 120 dB.
The bass frequencies are most hazardous to the auditory sphere. Over time, exposure to noise can cause hearing loss and / or noises ghosts called tinnitus which already suffering from 10 to 15% of French. This type of helmet will be very useful for people exposed to noise or construction machinery: paper mill, factories, construction equipment, gardening and tinkering with noisy machinery etc. ...
Prices range from 349 euros to 489 euros HT HT. The headphones are available with normal arch or hoop for use with a helmet. In options, it is possible to buy batteries deported (79 euros) and a Walkie-Talkie Icom IC-4008th NoiseMaster for communicating (306 euros). To transport all safely in a carrying case is sold 140 euros HT.
The online store for buy earmuff TechnoFirst.
TechnoFirst The company is publicly traded on the open market (Euronext Paris - France) under the code MLFST - FR0010006429.
0 comments:
Post a Comment