Engeneering Answers


Our environmental simulation centre can not only simulate, but also stimulate! The aim of stimulation - i.e. Environmental Stress Screening(ESS) – is to detect hidden material defects and manufacturing errors. For this purpose, we expose the entire equipment or parts of it to extreme environmental conditions. This can consist of vibrations, large temperature variations, and shocks.

Objective of Stimulation

The possibilities of stimulation are manifold. However, they all have the same ultimate objective: to improve the quality and the long-term reliability of the products.

Optimum Tests from Many Years of Experience

Useful screening requires an individual test programme. After all, the intent is to detect existing errors and not make any new ones. The basic data for a test programme therefore result from the mechanical and thermal stress limits of the products. On the basis of this data, we develop the optimum test methods in the environmental simulation centre.

100% Stimulation

In the 100% stimulation, all products are screened. The so-called bathtub diagram shows that, during the first period of product use, the number of failures registered is above average, resulting in enormous costs. In the 100% stimulation, which is an artificial ageing process, this critical phase is an endurance test for all products. The result: products that "endure" the screening are then fully fledged.

Early Detection

Environmental Stress Screening (ESS) is indispensable during the initial phase of production. The well-timed and optimum screening of individual parts and materials eliminates expensive recall campaigns.