The instrument control unit of SPICA SAFARI: a macro-unit to host all the digital control functionalities of the spectrometer

摘要

We present the preliminary design of the Instrument Control Unit (ICU) of the SpicA FAR infrared Instrument(SAFARI), an imaging Fourier Transform Spectrometer (FTS) designed to give continuous wavelength coverage in bothphotometric and spectroscopic modes from around 34 to 210 µm. Due to the stringent requirements in terms of mass andvolume, the overall SAFARI warm electronics will be composed by only two main units: Detector Control Unit andICU. ICU is therefore a macro-unit incorporating the four digital sub-units dedicated to the control of the overallinstrument functionalities: the Cooler Control Unit, the Mechanism Control Unit, the Digital processing Unit and thePower Supply Unit. Both the mechanical solution adopted to host the four sub-units and the internal electricalarchitecture are presented as well as the adopted redundancy approach.© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.