GB320070A - Line source of light varying with applied electrical energy for observing or recording rapid variations in current or potential - Google Patents
Line source of light varying with applied electrical energy for observing or recording rapid variations in current or potentialInfo
- Publication number
- GB320070A GB320070A GB1919528A GB1919528A GB320070A GB 320070 A GB320070 A GB 320070A GB 1919528 A GB1919528 A GB 1919528A GB 1919528 A GB1919528 A GB 1919528A GB 320070 A GB320070 A GB 320070A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cathode
- variations
- glow
- anode
- length
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D15/00—Component parts of recorders for measuring arrangements not specially adapted for a specific variable
- G01D15/14—Optical recording elements; Recording elements using X-or nuclear radiation
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
320,070. Lindemann, F. A. July 3, 1928. Vacuum tubes.-Apparatus for recording or detecting variations in electric current strength, for example for recording sound vibrations, consists of a glow discharge lamp containing an anode 14, Fig. 1, and a narrow elongated cathode 12, a screen such as a film 21, Fig. 2, and projecting means such as a lens 20, which faces the cathode directly, and projects an image of the whole width of the glow upon the screen, with or without means for blocking out more or less of the length of the image. The cathode may consist of a wire of constant or varying diameter partly surrounded for the whole of its length by a glass shield 13; it may be polished to make the glow uniform. The anode, consisting of a wire or metal sheet, may be arranged, as shown, closer to the cathode at one end than the other. Variations in the current strength produce variations of the glowing length of the cathode without variations of the intensity of the glow; when the anode is mounted parallel with the cathode, variations in current produce variations in the intensity of luminosity of the cathode. The envelope is made of glass or fused silica transparent to visible and preferably also to ultra-violet rays. Specifications 206,908. 209,800 and 212,867 are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1919528A GB320070A (en) | 1928-07-03 | 1928-07-03 | Line source of light varying with applied electrical energy for observing or recording rapid variations in current or potential |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1919528A GB320070A (en) | 1928-07-03 | 1928-07-03 | Line source of light varying with applied electrical energy for observing or recording rapid variations in current or potential |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB320070A true GB320070A (en) | 1929-10-03 |
Family
ID=10125318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1919528A Expired GB320070A (en) | 1928-07-03 | 1928-07-03 | Line source of light varying with applied electrical energy for observing or recording rapid variations in current or potential |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB320070A (en) |
-
1928
- 1928-07-03 GB GB1919528A patent/GB320070A/en not_active Expired
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