An improvement of the satellite camera.
From several field observations the following improvements have been made to the satellite camera designed by the author in 1966. (1) As driving mechanism of equatorial mounting a kind of D. C. motor is designed to obtain facilities for field operations. (2) Number of the travelling slits is increased to 8 with equal interval. (3) Slits can move 3 times along the surface of photographic plate according as the apparent angular speed of the satellite. (4〕 Flashing times are controlled by the pulse from a quartz clock calibrated by the time signal of the standard frequency, enabling accuracy of the flash time to the order of 士5 microseconds with respect to the clock. (5〕 Number of flashing is unified to 32 or 64 pps. (6) Calibration of the quartz clock is made by photographing the dual-beam synchroscope, with the use of a time selector which was especially designed for this purpose. In the original design the calibration of flashing time were made by an electro-magnetic oscillograph.
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| Format: | Journal Contribution biblioteca |
| Language: | Japanese |
| Published: |
1968
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| Online Access: | http://hdl.handle.net/1834/16384 |
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