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WALKWAY ABSORBER API

WALKWAY ABSORBER API

Product catalog summary
Overview
The document provides technical specifications and performance data for the WALKWAY ABSORBER API, a rigid flat absorber designed for use in anechoic chambers. It is suitable for walking upon and facilitates access to working areas within these chambers.

Main Characteristics
  • Material Composition: 90% open cells polyurethane foam and rigid polymer.
  • Impregnating Agents: Carbon, binder, and fire-retardant.
  • Maximum Service Temperatures: -70°C to 100°C.
  • Dimensions: 1220x610 mm.
  • Power Handling: Maximum of 0.13 W/cm² continuous wave (CW).
  • Fire Resistance: Plastic coating with M2 fire resistance available on request.
  • Load-Bearing Capability: Maximum of 200 kg/m² or 90 kg/ft².

Reflectivity Performance
The document includes a table detailing the minimum reflectivity of various API absorber types across different frequencies (200 MHz to 18 GHz). Key data points include:
  • API 20: Reflectivity ranges from -18 dB at 200 MHz to -18 dB at 12-18 GHz.
  • API 30: Reflectivity ranges from -10 dB at 200 MHz to -18 dB at 12-18 GHz.
  • API 40: Reflectivity ranges from -20 dB at 200 MHz to -20 dB at 12-18 GHz.
  • API 55: Reflectivity ranges from -10 dB at 200 MHz to -23 dB at 12-18 GHz.
  • API 78: Reflectivity ranges from -10 dB at 200 MHz to -26 dB at 12-18 GHz.

Method of Use
API absorbers are installed on a flat floor within anechoic chambers to provide access to working areas.
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Catalog excerpts

WALKWAY ABSORBER API-1

API absorber is a rigid flat absorber which can be walked upon. API absorbers are used to provide access to working areas within an anechoic chamber. All rights reserved. Information presented in this document are subject to modifications REFLECTIVITY PERFORMANCES MINIMUM REFLECTIVITY OF API in dB Type MAIN CHARACTERISTICS Matrix: 90% open cells polyurethane foam and rigid polymer Impregnating agents: carbon, binder, fire-retardant. Maximum service temperatures: - 70°C and 100°C. Sizes: 1220x610 mm Power handling: 0.13 W/cm² max CW. Plastic coating Fire resistance: M2 (on request) Maximum load-bearing capability: 200 kg/m² or 90 kg/ft² METHOD OF USE API absorbers are put on a flat floor. 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 [email protected] Domestic Sales Manager: Stéphane TANGUY [email protected] Customer Relations Manager: Stéphanie JÉGAT [email protected]

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