METHOD AND APPARATUS FOR MONITORING PRODUCTION OF A MATERIAL IN A LIQUID DISPERSION IN REAL TIME
A method for monitoring the production of a material such as graphene in a liquid dispersion in real time, comprises supplying the liquid dispersion to a fluid gap defined between a first layer and an opposed second layer, wherein the first layer is light-transmissive and wherein the second layer ha...
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| creator | Stafford, Jason Petit, Camille Matar, Omar |
| description | A method for monitoring the production of a material such as graphene in a liquid dispersion in real time, comprises supplying the liquid dispersion to a fluid gap defined between a first layer and an opposed second layer, wherein the first layer is light-transmissive and wherein the second layer has a diffusely reflective surface facing the first layer. The diffusely reflective surface is illuminated with light from a light source and light reflected from the diffusely reflective surface is detected at an associated photodetector. A light path from the light source to the photodetector comprises the light passing through the transmissive layer towards the diffusely reflective surface through the fluid gap, reflecting off the diffusely reflective surface and passing back through the fluid gap towards and onwards through the transmissive layer. The concentration of the material in the liquid dispersion can be determined from the detected reflected light. The fluid gap is typically an integral part of apparatus for producing the material, such as being formed between an inner rotor and an outer casing wall of a liquid exfoliation apparatus. |
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The diffusely reflective surface is illuminated with light from a light source and light reflected from the diffusely reflective surface is detected at an associated photodetector. A light path from the light source to the photodetector comprises the light passing through the transmissive layer towards the diffusely reflective surface through the fluid gap, reflecting off the diffusely reflective surface and passing back through the fluid gap towards and onwards through the transmissive layer. The concentration of the material in the liquid dispersion can be determined from the detected reflected light. 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The diffusely reflective surface is illuminated with light from a light source and light reflected from the diffusely reflective surface is detected at an associated photodetector. A light path from the light source to the photodetector comprises the light passing through the transmissive layer towards the diffusely reflective surface through the fluid gap, reflecting off the diffusely reflective surface and passing back through the fluid gap towards and onwards through the transmissive layer. The concentration of the material in the liquid dispersion can be determined from the detected reflected light. The fluid gap is typically an integral part of apparatus for producing the material, such as being formed between an inner rotor and an outer casing wall of a liquid exfoliation apparatus.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOUNDS THEREOF INORGANIC CHEMISTRY INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING METALLURGY NON-METALLIC ELEMENTS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PHYSICS TESTING THEIR RELEVANT APPARATUS TRANSPORTING |
| title | METHOD AND APPARATUS FOR MONITORING PRODUCTION OF A MATERIAL IN A LIQUID DISPERSION IN REAL TIME |
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