Edgerton Lab Notebook T-1, Page 34:
May 23, 1930
- Page start date:
- May 23, 1930
- Content type:
- diagram,notes
- Transcription:
- Stroboscope
This describes an idea for the utilizing of an ionized mercury vapor tube as a means of obtaining stroboscope action.
A current of sufficient magnitude to give enough light is sent through the mercury tube at definate periods of time. This is accomplished by having a variable speed motor drive as metalic disc. This disc has a small insulating segment on its rim. A narrow brush makes contact with the rim of the disc. When the insulated sector and the brush are together the current that normally passes from brush to disc is shunted into the mercury tube.
[diagram]
Witnessed in operation, May 16, 1929
T[ruman?] S. Gray
Cambridge, Mass
- Keywords:
- milk drop; stroboscope
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