Purpose

The main objectives of these
studies are:

• To protect and reduce injuries due to
  loud noises and blast waves
• To improve the operational efficiency
  by providing ergonomic and efficient
  protective equipments.

Results

Protection against noise and communication:

• Development of innovative protectors
  (passive or active) against continuous and weapon noise
• Improvement of audio communication
  in noisy environments by using specific transducers and adapted signal processing techniques
• Improvement of the soldier’s “natural” capabilities for acoustic information
  processing.

Test of earmuffs



Nonlinear earplugs (ISL patents)

Skills and Facilities

Testing capabilities and specific
metrology:

• Tests in a reverberant laboratory with
  pink noise levels up to 125 dB
• Tests with an impulse noise up to 195 dB
  (peak) carried out on our test range
• Measurement of the impulse noise from
  guns, mortars, etc.
  

Effects of blast waves:

• Expertise in the evaluation of human vulnerability
• Testing of personal protective equipment
  by using instrumented surrogates
  (artificial head, manikins, etc.) exposed to weapon noise or shock created by explosive charges.

Blast test






ISL artificial head