Spray data acquisition system

• US 7,672,478 B2
• Filed: 11/10/2008
• Issued: 03/02/2010
• Est. Priority Date: 08/17/1999
• Status: Expired due to Term

• Current Assignee: Proveris Scientific Corporation
• Original Assignee: Proveris Scientific Corporation
• Inventors: Farina, Dino J.
• Primary Examiner(s): Tabatabai; Abolfazl
• Application Number:
  US12/291,492
• Publication Number:
  US 20090136086A1
• Time in Patent Office: 477 Days
• Field of Search: 382/100, 356/27, 356/336, 356/339, 356/414, 356/436, 356/437, 356/438, 424/1.13, 424/59, 424/76.2, 424/84, 424/404, 424/426, 424/489, 239/130, 239/380, 239/692, 239/695, 239/701, 239/706, 73/10.2, 73/13.7, 73/14.1, 700/282, 700/283
• US Class Current: 382/100
• CPC Class Codes: G01N 21/47 Scattering, i.e. diffuse reflection G01N21/25, G01N21/41 take precedence G01N21/55 takes precedence
• CPC Class Codes: G01N 21/538 for determining atmospheric attenuation and visibility

Abstract

A spray data acquisition system includes a spray pump actuator that is capable of providing a pumping force to a pumping device to generate an aerosol spray plume along a spray axis. The system also includes an illumination device that illuminates the aerosol spray plume along at least one first geometric plane that intersects the aerosol spray plume. The system further includes an imaging device that acquires data representative of an interaction between the illumination and the aerosol spray plume along at least one geometric plane.

Claims

1. A spray data acquisition system comprising:

an illumination device for illuminating a spray plume along at least one geometric plane that intersects the spray plume; and

an imaging device for acquiring data representative of an interaction between the illumination and the spray plume along the at least one geometric plane;

wherein the acquired data is representative of a first time-sequential set of images or a second time-sequential set of images, the first time-sequential set of images corresponding to an axial cross-sectional density characteristic along a first geometric plane substantially normal to a flow direction centerline and the second time-sequential set of images corresponding to a longitudinal density characteristic along a second geometric plane substantially parallel to and intersecting the flow direction centerline.

2. The spray data acquisition system according to claim 1, wherein the interaction between the illumination and the spray plume includes optical scattering.

3. The spray data acquisition system according to claim 1, wherein the interaction between the illumination and the spray plume includes optical absorption.

4. The spray data acquisition system according to claim 1, wherein the imaging device includes a digital imaging system for generating and recording the image data.

5. The spray data acquisition system according to claim 4, wherein the digital imaging system includes an image sampling rate of approximately 500 images per second.

6. The spray data acquisition system according to claim 1, wherein the illumination device includes a laser system having a fan-shaped output pattern.

7. The spray data acquisition system according to claim 6, wherein the fan-shaped output pattern includes a fan angle of approximately 45 degrees, and a laser line thickness of approximately one millimeter at approximately the centerline of the emitted spray.

8. A spray data acquisition system according to claim 1 wherein the illumination device illuminates the spray plume along a second geometric plane that intersects the spray plume, and the imaging device acquires data representative of a second interaction between the illumination and the spray plume along a second geometric plane.

9. A spray data acquisition system according to claim 8 wherein the first and the second geometric planes are substantially orthogonal.

10. A spray data acquisition system according to claim 1 further comprising a housing for supporting the pumping device.