Gas sensor and method of selectively detecting acetylene and ethylene
AssigneeEberhard Karls Universität Tübingen
InventorsAbdulaziz Alharbi, Nicolae Barsan, Udo Weimar
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Abstract
A gas sensor that selectively detects and/or measures acetylene and/or ethylene includes a substrate; at least one electrode pair; at least one gas-sensitive layer consisting of at least one metal oxide from the group ReFeO3 and in contact with the at least one electrode pair; a heating element; and at least one control device, wherein the heating element is adapted to be heated alternately to at least two different temperatures of 150° C.-250° C., 200° C.-300° C. and 250° C.350° C., respectively, by the control device.
Claims20
1-19. (canceled)
A gas sensor that selectively detects and/or measures acetylene and/or ethylene comprising:
- a substrate;
- at least one electrode pair;
- at least one gas-sensitive layer consisting of at least one metal oxide from the group ReFeO3 and in contact with the at least one electrode pair;
- a heating element;
- and
- at least one control device, wherein the heating element is adapted to be heated alternately to at least two different temperatures of 150° C.-250° C., 200° C.-300° C. and 250° C.-350° C., respectively, by the control device.
A gas sensor that selectively detects and/or measures acetylene and/or ethylene comprising:
- a substrate;
- at least one electrode pair;
- at least one gas-sensitive layer consisting of at least one metal oxide from the group ReFeO3 and in contact with at least one electrode pair;
- two or more heating elements;
- and
- at least one control device, wherein each heating element is adapted to be heated to at least one particular different temperature of 150° C.-250° C., 200° C.-300° C. and 250° C.-350° C., respectively.
A method of selectively detecting and/or measuring acetylene and/or ethylene at a gas-sensitive layer consisting of at least one metal oxide from the group ReFeO3, comprising measuring temperatures alternately at at least two different temperatures of 150° C.-250° C., 200° C.-300° C. and 250° C.-350° C., respectively.
Dependencies are inferred from the claim text.