Apparatus and method for the spectroscopic determination of carbon
US7227636B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 27, 2005 |
| Grant date | Jun 5, 2007 |
| Priority date | — |
| Expiry date | Jul 7, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/67
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical emission spectrometer for analysis, identification or identity testing of metallic materials, and a method for optical emission analysis of metallic materials with a spectrometer, wherein the spectrometer has at least one arc or spark generator for producing a discharge between an electrode and a workpiece in a spark stand chamber of the generator. A cleansing apparatus for air about the discharge includes a pump for feeding air into the spark stand chamber, and a container through which air can flow. The container contains an alkaline metal or alkaline earth metal hydroxide or another substance that binds CO2 present in air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.