CONVOLUTED ABSORBER APC
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APC is a range of absorbers with convoluted shape, consisting of blocks of carbon-impregnated polyurethane foam. APC absorbers are used for equipping anechoic or semianechoic chambers. This cladding makes it possible to obtain quiet zone in very wide frequency bands. REFLECTIVITY PERFORMANCES APC absorbers provide very good impedance matching in centimetre and millimetre wavelengths and with high angles of incidence. This characteristic makes them very suitable for use in high frequency anechoic chambers. MINIMUM REFLECTIVITY OF APC in dB For incidence angles close to the normal Height (mm) All rights reserved. Information presented in this document are subject to modifications MAIN CHARACTERISTICS Matrix: polyurethane foam with 90% open cells. Impregnating agents: carbon, binder, fire retardant. Colours: black, white, blue, green, red (other colours by request). Paint: plastic coated for class 100 000 clean rooms or for external. Maximum service temperatures: - 70° C and 160° C. Power handling: 0.2 W/cm² max CW Fire resistance: NRL 8093 (Test 1, 2, 3), ISO 11925-2, DIN 4102 (class B2). DIMENSIONS A B Tot. height Convol. (mm) Height (mm) 80 55 D E ±T Base Base length height (mm) (mm) 25 610 ±3 METHOD OF USE APC absorbers can be fixed to all flat surfaces by means of Neoprene glue to be applied with a brush or a pneumatic spray gun to both faces to be glued. These data are the result of tests performed in our laboratory. They are considered to be the best of our knowledge. The use of the material and the specification of the performances are made under the whole responsibility of users who should ensure themselves that the material is suitable for their purposes. SIEPEL SAS – ZA de Kermarquer - 56470 La Trinité-sur-Mer FRANCE Ph.+33(0)2 97 55 74 95- Fax +33(0)2 97 55 84 55 – www.siepel.com International Sales Manager: Matthieu GUESNÉ m.guesne@siepel.com Domestic Sales Manager: Stéphane TANGUY s.tanguy@siepel.com Customer Relations Manager: Stéphanie JÉGAT s.jegat@siepel.com –