NON INVASIVE GAS ANALYSIS
First Claim
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1. A sensing device comprising:
- a gas permeable member arranged to receive gas from a substance to be tested;
a sensing member, located adjacent to the gas permeable member comprising a sensing substance, a property of which substance is modified when brought into contact with the received gas; and
optical means comprising;
a light source arranged to irradiate the sensing substance;
a first sensor configured to detect a change in the property of the sensing substance.
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Abstract
A sensing device is provided. The device comprises a gas permeable member, a sensing member and optical means.
The gas permeable member is arranged to receive gas from a substance to be tested. The sensing member is located adjacent to the gas permeable member and comprises a sensing substance. A property of the sensing substance is modified when it is brought into contact with the gas received by the gas permeable member.
The optical means comprises a light source which is arranged to irradiate the sensing substance together with a first sensor which is configured to detect a change in the aforementioned property of the sensing substance.
6 Citations
33 Claims
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1. A sensing device comprising:
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a gas permeable member arranged to receive gas from a substance to be tested; a sensing member, located adjacent to the gas permeable member comprising a sensing substance, a property of which substance is modified when brought into contact with the received gas; and optical means comprising; a light source arranged to irradiate the sensing substance; a first sensor configured to detect a change in the property of the sensing substance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. (canceled)
Specification