Filter disk rotator

dc.contributor.author	Gupta, S. K
dc.contributor.author	Nautiyal, S. L
dc.contributor.author	Negi, B. S
dc.date.accessioned	2007-05-17T05:21:25Z
dc.date.available	2007-05-17T05:21:25Z
dc.date.issued	1994
dc.identifier.citation	BASI, Vol. 22, No. 2, pp. 177-180	en
dc.identifier.uri	http://hdl.handle.net/2248/1594
dc.description.abstract	A filter disk rotator has been designed and developed in the electronics laboratory of Uttar Pradesh State Observatory (UPSO) for photometric observations. A stepper motor is used to rotate the filter disk in the forward as well as in the reverse directions. A start signal is required to drive the stepper motor to rotate the filter disk. As the filter comes in front of the diaphragm, its position is sensed by the photosensors and displayed on the observer panel and simultaneously a stop signal is generated to stop the motor. The observer can select the required filter at any time and may control the disk rotator remotely	en
dc.format.extent	221332 bytes
dc.format.mimetype	application/pdf
dc.language.iso	en	en
dc.publisher	Astronomical Society of India	en
dc.subject	Stepper motor	en
dc.subject	Filter disc	en
dc.title	Filter disk rotator	en
dc.type	Article	en