Chemically-resistant sensor devices, and systems and methods for using same
AssigneeGeneral Electric Company
InventorsRadislav Alexandrovich Potyrailo, Joseph Richard Wetzel
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Abstract
A sensor device is disclosed, as well as methods and systems for determining a barrier property of each coating of an array of barrier coatings deposited onto a fluid-permeable or fluid-impermeable substrate. The systems and methods include the sensor device having a sensing layer responsive to a fluid of interest for which the barrier property of the array of coatings are desired to be determined. The sensor device further includes an overlayer disposed between the array of barrier coatings and the sensing layer. The overlayer protects the sensing layer from being damaged by the coatings.
Claims37
A sensor device for determining a barrier property of a coating with respect to a fluid of interest, the sensor device comprising:
- a sensing layer comprising a material having a predetermined response to an exposure to the fluid of interest;
- and
- an overlayer disposable between the sensing layer and the coating, the overlayer comprising a material that does not substantially affect the predetermined response of the sensing layer to the material of interest, and the overlayer further comprising a material that protects the sensing layer from chemical damage due to interaction with the barrier coating.
A system for determining a barrier property of an array of barrier coatings with respect to a fluid of interest, comprising:
- a sensor device on which the array of barrier coatings are disposed, the sensor device having a sensing layer and an overlayer, the sensing layer comprising a material having a predetermined response to an exposure to the material of interest, the overlayer disposable between the sensing layer and the array of barrier coatings, the overlayer comprising a material that does not substantially affect the predetermined response of the sensing layer to the material of interest, and the overlayer further comprising a material that protects the sensing layer from chemical damage due to interaction with the barrier coating;
- a radiation source having an output for generating a reference radiation directable toward the sensor device, wherein an interaction between the reference radiation and the sensor device generates a resultant radiation;
- and
- a detector for measuring characteristics of the resultant radiation, wherein the measured characteristics of the resultant radiation are relatable to a barrier property for each of the array of barrier coatings.
A device for mapping of barrier coatings, the device comprising:
- a sensor having at least one external surface;
- a protective overlayer applied to at least one of the at least one external surface, wherein the protective overlayer is fluid-permeable and wherein the protective overlayer protects the external surface of the sensor from damage from a barrier coating;
- an array of barrier coatings in a library deposited onto the protective overlayer;
- a fluid of interest for exposure to the array of barrier coatings;
- and
- a measurement device for measuring variation in analytical signal for the array of barrier coatings exposed to the fluid of interest.
A method for measuring barrier properties of barrier coatings, the method comprising:
- providing a chemical sensor having at least one external surface;
- applying a protective overlayer to the at least one external surface of the chemical sensor, the protective overlayer being fluid-permeable and protecting the external surface of the sensor from damage from a barrier coating;
- placing an array of barrier coatings on the protective overlayer;
- exposing the array of barrier coatings to a fluid of interest;
- and
- measuring a variation in the barrier properties of the array of barrier coatings.
A system for measuring barrier properties of barrier coatings, the system comprising:
- means for providing a sensor having at least one external surface;
- means for applying a protective overlayer to the at least one external surface of the sensor, the protective overlayer being fluid-permeable and protecting the sensor from damage from a barrier coating;
- means for placing an array of barrier coatings on the protective overlayer;
- means for exposing the array of barrier coatings to a fluid of interest;
- and
- means for measuring variation in a barrier property of each of the array of barrier coatings.
Dependencies are inferred from the claim text.