Multi-micro hollow cathode light source and atomic absorption sepctrometer
US8638034B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Feb 8, 2011 |
| Grant date | Jan 28, 2014 |
| Priority date | — |
| Expiry date | Feb 8, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05H1/2406
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The multi-micro hollow cathode light source has a cathode plate, an insulation plate, an anode plate, and metal pieces. The insulation plate is sandwiched by the cathode plate and the anode plate. The cathode plate is made of copper. The centers of the cathode plate, insulation plate, and anode plate, are provided with holes, respectively. The holes form a penetrating though-hole. Linear slots are disposed in the cathode plate continuously extending from the hole in a cross shape. Each slot penetrates the cathode plate. Four metal pieces made of materials different from one another are inserted and buried in the four slots.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.