Optical temperature sensors and optical-chemical sensors with optical temperature compensation
US6303386A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 1998 |
| Grant date | Oct 16, 2001 |
| Priority date | — |
| Expiry date | Jun 24, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/7786
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to a device for the temperature-compensated determination of chemical parameters, comprising: PA1 an optical temperature sensor which contains a temperature indicator that has a temperature-dependent afterglow time and/or luminous intensity and does not react with the surrounding medium; a chemical sensor which contains an indicator that is sensitive to a chemical parameter; means for stimulating the temperature indicator and the chemical indicator to luminesce; means for measuring the luminescence of the temperature indicator and of the chemical indicator; means for establishing an optical connection between indicator, excitation device and measuring equipment; means for detecting luminous radiation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.