GAS SENSOR, ANALYZER AND METHOD FOR MEASURING OXYGEN CONCENTRATION OF A RESPIRATORY GAS
First Claim
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1. A gas sensor comprising:
- an emitter for emitting radiation to a body at least partly coated with a luminophore emitting luminescent radiation indicative of an oxygen concentration when in contact with a respiratory gas;
a filter for transmitting the luminescent radiation emitted by said luminophore;
an oxygen detector for receiving the luminescent radiation transmitted by said filter; and
an infrared thermometry unit for receiving a thermal radiation indicative of a temperature of said luminophore.
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Abstract
A gas sensor is disclosed herein. The gas sensor includes an emitter for emitting radiation to a body at least partly coated with a luminophore emitting luminescent radiation indicative of an oxygen concentration when in contact with a respiratory gas. The gas sensor also includes a filter for transmitting the luminescent radiation emitted by the luminophore and an oxygen detector for receiving the luminescent radiation transmitted by the filter. The gas sensor also includes an infrared thermometry unit for receiving a thermal radiation from the luminophore. A gas analyzer and a method for measuring oxygen concentration of a respiratory gas are also provided.
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Citations
20 Claims
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1. A gas sensor comprising:
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an emitter for emitting radiation to a body at least partly coated with a luminophore emitting luminescent radiation indicative of an oxygen concentration when in contact with a respiratory gas; a filter for transmitting the luminescent radiation emitted by said luminophore; an oxygen detector for receiving the luminescent radiation transmitted by said filter; and an infrared thermometry unit for receiving a thermal radiation indicative of a temperature of said luminophore. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A gas analyzer for measuring oxygen concentration of a respiratory gas comprising:
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an emitter for emitting radiation; an airway adapter having a flow channel carrying respiratory gas including oxygen; a body at least partly coated with a luminophore excited by the radiation emitted by said emitter, said luminophore being in contact with said respiratory gas and emitting luminescent radiation; a filter for transmitting the luminescent radiation emitted by said luminophore; an oxygen detector for receiving the luminescent radiation transmitted by said filter; and an infrared thermometry unit for receiving a thermal radiation from said luminophore. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 20)
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17. A method for measuring oxygen concentration of a respiratory gas comprising:
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emitting a radiation to a body coated at least partly with a luminophore which luminophore is adapted to emit luminescent radiation indicative of an oxygen concentration when in contact with the respiratory gas; filtering the radiation to transmit the luminescent radiation; detecting the transmitted luminescent radiation; and receiving a thermal radiation from said luminophore indicative of a temperature of said luminophore. - View Dependent Claims (18, 19)
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Specification