The imaging Fourier transform spectrometer: Performance and tolerance analysis

Details The imaging Fourier transform spectrometer: Performance and tolerance analysis The imaging Fourier transform spectrometer: Performance and tolerance analysis

May 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992esasp.344..290k&link_type=abstract

In ESA, Solar Physics and Astrophysics at Interferometric Resolution p 290 (SEE N93-10901 01-90)

Computer Science

Performance

Fourier Transformation, Imaging Spectrometers, Performance Tests, Tolerances (Mechanics), Abstracts, Optical Measurement, Solar Instruments, Systems Engineering, Vibration Tests

Scientific paper

An abstract and an outline of an analysis of the Imaging Fourier Transform Spectrometer (IFTS), one of the core instruments of SIMURIS (Solar Interferometric Mission for Ultrahigh Resolution Imaging and Spectroscopy), is given. The quality of the optical system (including diffraction effects and aberrations of the nominal system) were evaluated. The performance figures were determined in the course of the instrument design process. Detailed information on components and other instrumental considerations lead to a readjustment of some of the requirements. The tolerance analysis and its implications were addressed. The influence of component manufacturing errors, assembly and alignment errors, and environmental disturbances on the optical quality were evaluated. The quality of the instrument including tolerances was determined in terms of the following: spot sizes in the detector, wavefront errors of interfering beams, pointing errors, and accuracy of the selected center wavelength. For each of these aspects the contributing optical components were identified. The permissable error budget was distributed over these components. The component tolerances were calculated.

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