Integrated sensing module for handheld spectral measurements
US7907282B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 10, 2008 |
| Grant date | Mar 15, 2011 |
| Priority date | — |
| Expiry date | Jun 10, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2035/1062
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An integrated spectral sensing engine featuring energy sources and detectors within a single package includes sample interfacing optics and acquisition and processing electronics. The miniaturized sensor is optimized for specific laboratory and field-based measurements by integration into a handheld format. Design and fabrication components support high volume manufacturing. Spectral selectivity is provided by either continuous variable optical filters or filter matrix devices. The sensor's response covers the range from 200 nm to 25 μm based on various solid-state detectors. The wavelength range can be extended by the use of filter-matrix devices. Measurement modes include transmittance/absorbance, turbidity (light scattering) and fluorescence (emission). On board data processing includes raw data acquisition, data massaging and the output of computed results. Sensor applications include water and environmental, food and beverage, chemical and petroleum, and medical analyses. These can be expanded into various field and consumer-based applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.