Project : coprin

Section: Contracts and Grants with Industry

Institut Laue Langevin

In 2001/2002 we have collaborated with this Institute for the development of fine positioning device that will be used for a strain imager. A neutron stream issued from a nuclear reactor is used to determine the stress level in mechanical parts. But this level can only be determined for a small area: hence it is necessary to move the part so that the neutronic sensor measurement will cover the whole part. Accuracy, high load capabilities and stiffness are the constraints that have to be satisfied. An optimal design study of a parallel robot has been performed in 2002. But the project has been delayed and the final engineering has been sub-contracted. ILL has however decided that the COPRIN project should evaluate the final design. A full performance analysis has been performed and has exhibited some flaws in the proposed design.

Logo Inria