Oxygen monitoring device and method
First Claim
1. Apparatus for monitoring the oxygen content in a stream of gas comprising a housing means;
- a light source, and a light detection means disposed within said housing means, and in alignment with each other, said detection means being coupled to a warning device;
a film of manganese tertiary phosphine polymer complex disposed between said light source and said light detection means;
input means by which the gas to be monitored is fed into said housing; and
egress means from said housing.
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Accused Products
Abstract
The present invention relates to a novel method and apparatus which can provide continuous monitoring of the oxygen content of a gas over an indefinite period of time and at a minimal cost.
In the novel apparatus of the present invention, a light source and a light sensitive detector are disposed within the atmosphere to be measured, and a polymeric film formed from a manganese tertiary phosphine polymer complex is deposited between the light source and the detector. As oxygen pressure increases or decreases a change in color intensity of the film takes place which controls passage of light from the light source to the detector. The detector in turn is suitably connected to an audio and/or visual warning device and/or a recorder which will provide the desired form of warning.
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Citations
25 Claims
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1. Apparatus for monitoring the oxygen content in a stream of gas comprising a housing means;
- a light source, and a light detection means disposed within said housing means, and in alignment with each other, said detection means being coupled to a warning device;
a film of manganese tertiary phosphine polymer complex disposed between said light source and said light detection means;
input means by which the gas to be monitored is fed into said housing; and
egress means from said housing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
- a light source, and a light detection means disposed within said housing means, and in alignment with each other, said detection means being coupled to a warning device;
- 13. A method of monitoring the oxygen content of a stream of gas the steps which comprise passing the gas to be monitored through a defined enclosed area, disposing a light source and light detection means within said enclosed area and in alignment with each other, disposing a film of manganese tertiary phosphine polymer complex between said light source and said detection means, connecting said detection means to a warning device whereby a drop in the oxygen content in the gas stream will cause a reduction in the color intensity of the said film permitting light to pass through the film activating the light detection means and thereby activating said warning device.
Specification