Browse Publications Technical Papers 2000-01-2530
2000-07-10

Development of a Multifunctional Data Acquisition Unit for the ESTEC LSS 2000-01-2530

The ESTEC Large Space Simulator (LSS) is a facility which provides close simulation of in-orbit environmental conditions for spacecraft and payload testing. The LSS is equipped with a Motion System (MS), which allows spin rotation and attitude positioning of test objects. A part of the MS is the Slip-Ring Unit (SRU), located in the Spin box. The SRU makes it possible to transmit, among other, signals generated by temperature sensors fixed on the rotating test objects to a local Data Handling System. However, at present, only analog thermocouple channels are available for spacecraft temperature measurements. In order to extend the thermocouple channel capacity of the current SRU configuration and to make possible the acquisition unit has been conceived. Besides the multifunction feature, a particular effort has been made to achieve optimal measurement accuracy vs sensor type and to pursue the use of non-space qualified components.

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