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ANITA2 Trace Gas Analyser for the ISS - Flight Model Finalization and ground test results

ANITA2 Trace Gas Analyser for the ISS - Flight Model Finalization and ground test results

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Sammendrag
The ANITA2 (Analysing Interferometer for Ambient Air) instrument is a trace gas analyser, designed to operate onboard the ISS and to monitor the cabin atmosphere. Within the last 2 years, significant progress has been made towards realizing the flight instrument, including the flight-like design, manufacturing, and functional testing of the opto-mechanical components, as well as further development of the gas analysis methods. ANITA2 will deliver information on the air conditions, analysing in parallel more than 30 of the most important trace gases in the cabin atmosphere. The data is complementary to other in-situ measurements in a crewed space cabin atmosphere. The advantages of the ANITA type instruments include high sensitivity, accuracy, precision and time resolution of the measurement data, as well as no consumption except electrical power and no production of waste. The novel, sophisticated analysis software is further improved, employing statistical and non-linear calibration and analysis methods. Thus, detailed, continuous, and quasi real time information on the cabin air quality becomes available. For these reasons, ANITA2 is also a stepping stone into the future, as a precursor system for crewed stations, bases, and exploration missions, including the (Deep-Space) Gateway and to/on the Moon and Mars. The current process of bringing local gas samples to earth for analysis is not feasible for these missions. Therefore, the availability of local gas analysis capabilities for a wide range of substances, is a key element of future human spaceflight missions. The paper gives an overview of ANITA2. This includes the overall system concept and design as well as details about sub-systems, where the hardware is already being manufactured. The current Optical Breadboard is shown and described, which contains all opto-mechanical components of ANITA2 in a flight-like design. In addition, the main results of the very successful performance testing of the Optical Breadboard are presented. These tests showed a robust, high optical quality at various conditions. ANITA2 has successfully passed PDR in June 2018 and will be ready for flight and start-up on the ISS in 2020. The manufacturing of the Flight Model started early in 2019.
Oppdragsgiver
  • ESA - den europeiske romfartsorganisasjonen / 4000118166/16/NL/AT
Språk
Engelsk
Forfatter(e)
Institusjon(er)
  • SINTEF Digital / Smart Sensor Systems
Presentert på
49th International Conference on Environmental Systems
Sted
Boston, Massachusetts
Dato
06.07.2019 - 10.07.2019
Arrangør
ICES
År
2019