Analysis device with transducer stiffening elements
US9068930B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 1, 2010 |
| Grant date | Jun 30, 2015 |
| Priority date | — |
| Expiry date | Jan 6, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/0256
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed herein is an analysis device for use with an external testing apparatus to detect the presence of an analyte in a test sample. The device comprises a transducer formed of a layer of pyroelectric or piezoelectric material sandwiched between first and second electrode layers, the transducer being arranged to produce an electrical voltage across the electrode layers in response to heating or straining of the pyroelectric or piezoelectric material layer. The device also comprises first and second stiffening elements for the transducer, the transducer being sandwiched between the stiffening elements. Each of the stiffening elements defines a planar surface for maintaining the transducer in a flat condition. Each of the stiffening elements exposes a portion of a respective electrode layer of the transducer for electrically connecting the transducer to the external text apparatus. The exposed portions are laterally offset from each other such that the exposed portions are each supported across the whole of their area by the stiffening element on the opposite side of the transducer. It has been found that such an arrangement may reduce noise caused by environmental effects.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.