Method and system for instantaneously determining the oxygen activity in molten metals
US4105507A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 12, 1971 |
| Grant date | Aug 8, 1978 |
| Priority date | — |
| Expiry date | Aug 12, 1991 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/134
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for determining the oxygen activity in molten metals includes a measuring probe insertable in the melt and provided with an electrochemical cell, a thermoelement, and three contact devices. The probe is mounted at the end of a measuring lance. A preamplifier mounted on the lance is connected to the contact devices and furnishes the signals received to a preamplifier which supplies signals to a calculating unit which converts the EMF of the electrochemical cell and the EMF of the thermoelement to magnitudes representing the oxygen acitivity and the temperature, which are either recorded or observed on indicators. The measuring probe is mounted in a paper sleeve which is removable attached to the end of the lance. The electrochemical cell includes a body of solid electrolyte passing through the outer end wall of the cell and connected to one of the contact devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.