Multiple surface evanescent wave sensor with a reference
US5340715A · kind A · utility
65Cited by
8References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1991 |
| Grant date | Aug 23, 1994 |
| Priority date | — |
| Expiry date | Jun 7, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S436/807
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An evanescent wave sensor and method for use in analyzing one or more media, the sensor including a waveguide having first and second wave propagating surfaces. The waveguide propagates an input signal along the waveguide between the first and second surfaces. The first surface receives a first radiation signal which indicates the presence of a first analyte, and the second surface receives a second radiation signal representing one or both of a second analyte and a reference. The first and second surfaces can both be contacted with a single medium, or with two separate media, and one or more output signals can be detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.