Removable insert for a test unit having a light source for illuminating an aerosol test chamber
US10209184B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2016 |
| Grant date | Feb 19, 2019 |
| Priority date | — |
| Expiry date | Feb 16, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/06113
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A test unit having a light source (e.g., a laser) for illuminating an aerosol sample directed into a test chamber and a removable insert for the test unit. The test unit includes at least one detector for detecting the effect of the aerosol sample on light, i.e., the detector detects at least one property of light after the light has illuminated the aerosol sample. The removable insert may take a number of different forms. For example, the removable insert can form at least a portion of an unsealed or sealed test chamber when installed in an operating position. Further, the removable insert may include a removable support and at least one film or collection substance connected or applied to the removable support. The at least one film could be a filter or a non-filter. The filter could be a polarization filter (i.e., horizontal or vertical) or a fluorescence filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.