Spray plume characterization system
AssigneePatheon Inc.
InventorsSteve Y. T. Yang, Anthony Y. Qu, Shabbir Anik
Life of this patent
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Abstract
The density of a spray plume generated by an aerosol delivery system (“ADS”) may be characterised by illuminating a face of the plume with light and then imaging the plume. The shape of the plume may be characterised by operating the ADS in a controlled manner to form a first spray plume. A face of the plume is illuminated and the plume imaged from a first side parallel to the spray axis of the plume. The ADS is then again operated in the controlled manner to form a second spray plume. A face of the second plume is illuminated and the second plume imaged from a second side which is parallel to the spray axis of the plume and perpendicular to the first side.
Claims18
A method of characterising a spray plume, comprising:
- illuminating a spray plume with light such that said light impinges upon the entirety of a first side of said spray plume;
- imaging said illuminated spray plume from a second side perpendicular to said first side.
A method of characterising a spray plume, comprising:
- operating an aerosol delivery system in a controlled manner to form a first spray plume;
- illuminating said first spray plume with light such that said light impinges upon the entirety of a face of said first spray plume;
- imaging said first spray plume from a first side parallel to a spray axis of said spray plume;
- operating said aerosol delivery system in said controlled manner to form a second spray plume;
- illuminating said second spray plume with light such that said light impinges upon the entirety of a face of said second spray plume;
- imaging said second spray plume from a second side parallel to a spray axis of said spray plume, said second side being perpendicular to said first side.
A system for spray plume characterisation, comprising:
- a source of non-coherent illumination positioned for illuminating a spray plume with light such that said light impinges upon the entirety of a first side of said spray plume;
- an imaging device for imaging said illuminated spray plume from a second side perpendicular to said first side.
A system of characterising a spray plume, comprising:
- an actuator for operating an aerosol delivery system in a controlled manner to form a spray plume;
- a source of illumination for illuminating said spray plume with light such that said light impinges upon the entirety of a face of said spray plume;
- an imaging device positioned for imaging said spray plume from a side parallel to a spray axis of said spray plume;
- a turntable having a rotational axis parallel to said spray axis for rotating said aerosol delivery system.
A system of characterising a spray plume, comprising:
- means for operating an aerosol delivery system in a controlled manner to form a first spray plume and, subsequently, a second spray plume;
- means for illuminating said first spray plume with light such that said light impinges upon the entirety of a face of said first spray plume and for illuminating said second spray plume with light such that said light impinges upon the entirety of a face of said second spray plume;
- and
- means for imaging said first spray plume from a first side parallel to a spray axis of said spray plume and for imaging said second spray plume from a second side parallel to a spray axis of said spray plume, said second side being perpendicular to said first side.
Dependencies are inferred from the claim text.