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A Data Acquisition System with On-Line Computer

Published online by Cambridge University Press:  30 March 2016

Erik Høg
Erik Høg*
Affiliation:
Hamburger Sternwarte, Hamburg, D.B.R.

Extract

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Nather and Evans (1970) emphasize that merely recording the light curve of an occultation is not enough. The data must be recorded in a form which is convenient for the analysis to be carried out later on. Analog methods of recording merely delay the time at which the record must be measured, usually after it has been digitized in some way. Nather and Evans have used a modified digital multiscaler with 400 storage locations for the observation. The data acquisition to be described here is in principle rather similar to a multiscaler and deserves special attention because it is in practice even more flexible and convenient due to its on-line computer. Our system has been used to measure star occultations (De Vegt and Pansch, 1970) and the Crab pulsar (Høg and Lohsen, 1970) and to sample data from a scanning photometer (Høg, 1969).

Type
III. Joint Discussions
Information
Highlights of Astronomy , Volume 2: Highlights of Astronomy. As presented at the XIVth General Assembly of the IAU, 1970 , 1971 , pp. 624 - 625
Copyright
Copyright © Reidel 1971

References

Høg, E.: 1969, Proceedings of the IAU Colloquium No. 5 on Visual Double Stars, Nice 1969.Google Scholar
Høg, E. and Lohsen, E.: 1970, Nature 227, 1229.Google Scholar
Nather, R. E. and Evans, D. S.: 1969, ‘Discovery and Measurement of Double Stars by Lunar Occultations’, Astron J. (preprint).Google Scholar
de Vegt, Chr. and Pansch, E.: 1970 in Joint Discussion on Photoelectric Observation of Stellar Occultations.Google Scholar