×

Calibration system and technique for photoluminescent oxygen sensors with zero point maintained with a metal-air battery

  • US 8,323,978 B2
  • Filed: 05/20/2011
  • Issued: 12/04/2012
  • Est. Priority Date: 11/07/2008
  • Status: Active Grant
First Claim
Patent Images

1. A calibration set for use in calibrating an optical oxygen sensor, comprising (i) a first mass of an oxygen sensitive photoluminescent dye retained within a hermetically sealed space so as to isolate the dye from environmental oxygen and thereby define a permeation rate of oxygen from the surrounding air into the sealed space, and in fluid communication with an activated metal-air battery whereby any oxygen in the hermetically sealed space is consumed by the battery, and (ii) a second mass of an oxygen sensitive photoluminescent dye in fluid communication with fluid having an environmental concentration of oxygen.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×