Objective At the end of the project, having developed the PEM markers, the possibilities of acoustic emission and the receiver, the developed theories presented by the means of laboratory tests showed their limitation on the ground.Indeed, we forecasted to use the answering frequency of the electric piezo and the liberated energy in order to convert it into electro magnetically energy by the mean of an adapted antenna.The experience and the ground tests (all types of grounds) proved that following the environment, the perturbations, the piezo specifications the obtained frequencies were submitted to important variations.During those 24 months of study, we tested the feasibility of a PIEZO ELECTRIQUE component used as an energy source in order to power electromagnetic emission electronics.Manipulations in labs and tests in the field clearly demonstrated the impossibility to merely use the electric Piezo on its resonance frequency as a frequency source (the frequency varying in great proportions) in accordance with the environment.Thus we introduced, in the PEM marker emission chain, an electronic as a loading pump and an oscillator accurate in frequency. An antenna constituted of a coil enables a capacity of emission of about 1m50.This demonstrated the technical feasibility we expected and, unfortunately, the different disadvantages of the PEM device :- On the one hand, for the users the mechanic shock excitation is very constraining. More over, the markers tests buried under a bitumen coating show a huge diminution of the shock wave. This is due to the impedance ruptures in a heterogeneous soil. The shock wave transmitted by the mass does not arrive.On the other hand, as we indicated in the Mid-Term report, the mass-manufacturing of the PEM markers significantly changed. The manufacturing price prevision has gone up from 0.5 to 2.5 for a basic marker. This is an important obstacle for the targeted market.We thus can say that his programme will not lead to a commercial success. Fields of science engineering and technologymaterials engineeringcoating and filmsnatural sciencesphysical sciencesacoustics Programme(s) FP5-GROWTH - Programme for research technological development and demonstration on "Competitive and sustainable growth 1998-2002" Topic(s) 1.1.3.-1. - Key Action Innovative Products, Processes and Organisation Call for proposal Data not available Funding Scheme CRS - Cooperative research contracts Coordinator MADE EU contribution No data Address Chemin Paul Madon, Espace Frioul 83160 LA VALETTE DU VAR France See on map Total cost No data Participants (9) Sort alphabetically Sort by EU Contribution Expand all Collapse all BLUE PANTHER SRO Czechia EU contribution No data Address Na Schudkach 10 14300 PRAHA 4 See on map Total cost No data CESIGMA France EU contribution No data Address Forum Aurelia - Route du Val 93170 BRIGNOLES See on map Total cost No data GAZ DE FRANCE France EU contribution No data Address 23,avenue du Président Wilson 361 93211 LA PLAINE SAINT-DENIS See on map Total cost No data MAQUINAS ELECTROMECANICAS SEGURIDAD Spain EU contribution No data Address Calle a Interior, Nave 30 bis, Poligono Industrial 28230 LAS ROZAS DE MADRID See on map Total cost No data OMD FAST MOD Romania EU contribution No data Address Street Timisorii 57 1800 LUCOJ JUD TIMIS See on map Total cost No data SOCABELEC Belgium EU contribution No data Address Rue Emile Vandervelde 56 5190 JEMAPPE SUR SAMBRE See on map Total cost No data TECSYS+ France EU contribution No data Address Quartier de Paris - Route du Val 83170 BRIGNOLES See on map Total cost No data TEMPTEC Portugal EU contribution No data Address N°86, 2° Dt°, Cc Da Boa Hora 1300-096 LISBOA See on map Total cost No data UNIVERSITÉ DE TOULON ET DU VAR France EU contribution No data Address Bètiment R, Avenue de l'Université 83130 LA GARDE (VAR) See on map Total cost No data
