Vacuo spark generator for the spectrographic analysis of samples
US4250433A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 5, 1979 |
| Grant date | Feb 10, 1981 |
| Priority date | — |
| Expiry date | Feb 5, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/67
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An in vacuo spark generator for the spectral analysis in the ultraviolet of a sample acting as an anode, with a coaxial annular cathode cooperating with the anode and an electrode for the formation of initiation sparks the operative portion of which is disposed opposite the outer side surface of the cathode and set back relative the frontal face of the cathode, the cathode frontal face being rounded and the opposite portions of the cathode and the initiation electrode being provided each with removable snap-rings slightly protruding relative to the body of the cathode and initiation electrode; said snap-rings are housed in a semicircular groove provided in the body of the cathode and the initiation electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.