- Patent Title: Particle tracking analysis method using scattered light (PTA) and device for detecting and identifying particles of a nanometric order of magnitude in liquids of all types
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Application No.: US15305401Application Date: 2015-05-12
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Publication No.: US09939363B2Publication Date: 2018-04-10
- Inventor: Hanno Wachemig , Margret Boeck
- Applicant: PARTICLE METRIX GMBH
- Applicant Address: DE Meerbusch
- Assignee: PARTICLE METRIX GMBH
- Current Assignee: PARTICLE METRIX GMBH
- Current Assignee Address: DE Meerbusch
- Agency: Duane Morris LLP
- Agent Gregory M. Lefkowitz; Jason M. Nolan
- Priority: DE102014007355 20140519
- International Application: PCT/DE2015/000241 WO 20150512
- International Announcement: WO2015/176698 WO 20151126
- Main IPC: G01N21/00
- IPC: G01N21/00 ; G01N15/14 ; G01N15/02 ; G01N21/03 ; G01N27/447 ; G01N21/51 ; G02B21/06 ; G02B21/36 ; H04N5/77 ; G06T7/70 ; G01N15/00 ; G01N15/10 ; G01N21/47

Abstract:
A method and device for optically detecting particles, including: (a) a cell wall of rectangular cross-section is fitted on a longitudinal surface and adjoining transverse surface with an L-shaped heating and cooling element; (b) the center of the transverse surface of the cell wall opposite the transverse surface which forms the support of the cell wall is irradiated by an irradiation device and is observed at right angles to the optical axis of the irradiation device; (c) the focus of the irradiation device and the observation device can be moved by a motor to any point in the three-dimensional inner region defined by the cell wall; (d) the surface of the cell wall opposite the optical glass window through which the radiation from the irradiation device enters comprises another optical glass window; (e) the temperature of the surface of the cell wall is monitored by two thermistors.
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