Concerning glass magnetogram-scales
Abstract
In the December, 1919, number of Terrestrial Magnetism and Atmospheric Electricity, an article appears describing a glass magnetogram-scale used in the Department of Terrestrial Magnetism. I do not know how the glass slides are prepared but in case anyone has not seen the “graticules” prepared by the Rheinberg process, may I suggest the possibility of having them done in that way rather than by direct ruling on the glass.The process is described in the Transactions of the Optical Society, May, 1919. It consists of a photographic transference of the diagram or pattern required, onto the surface of the glass and a subsequent deposit of platinum which is burnt into the surface of the glass.
- Publication:
-
Terrestrial Magnetism and Atmospheric Electricity
- Pub Date:
- 1920
- DOI:
- 10.1029/TE025i002p00064
- Bibcode:
- 1920TeMAE..25...64B