Computer Science – Performance
Scientific paper
Oct 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981pasp...93..661l&link_type=abstract
Astronomical Society of the Pacific, Publications, vol. 93, Oct.-Nov. 1981, p. 661-671.
Computer Science
Performance
1
Automatic Control, Electrophotometers, Stellar Spectrophotometry, Systems Engineering, Variable Stars, Data Acquisition, Digital Integrators, Interstellar Extinction, Minicomputers, Multiplexing, Performance Tests
Scientific paper
The system of automated photometry described by Linnell et al. (1975) is revised to create a system which is flexible and well adapted to high-speed photometry of variable stars. Modifications are described, and qualification tests of equipment and performance are reported. Observing efficiency is maximized by advance planning of the observing session. Input data include integrator gain calibration, nominal extinction coefficients, and nominal integrator times, individually by color filter in units of milliseconds to a maximum of 32,767. Tests include options for scans through groups of sequential digital sources, scans through the entire set of digital sources, or repetitive readout of a given multiplex channel within a given digital source, and it is demonstrated that the automated photometer produces reliable, repeatable results of excellent accuracy.
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