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How does the refractometer brix measure the concentration of solutes in a solution? 


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The refractometer brix measures the concentration of solutes in a solution by detecting the refractive index variations. One method involves using surface plasmon resonance (SPR) and dual-frequency laser interferometric phase detection . Another method utilizes a Si3N4-thin film deposited on a tapered fiber to fabricate a high-refractive-index sensor . Additionally, a handheld concentration refractometer with a prism table and detection prism has been developed for fast and accurate measurements . A Brix sensor based on the differential pressure measurement principle has also been proposed, where two piezoresistive silicon pressure sensors are used to measure the specific gravity of the liquid . Furthermore, a refractometer using nanostructured one-dimensional photonic crystals (1D PCs) has been developed for characterization of fermentation processes . These different methods provide options for measuring the concentration of solutes in a solution using refractometers.

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The provided paper does not mention the specific method of how the refractometer measures the concentration of solutes in a solution.
The provided paper does not mention the refractometer brix or how it measures the concentration of solutes in a solution. The paper focuses on a low-cost sensor based on differential pressure measurement for continuous measurement of Brix in liquids.
The provided paper does not mention the refractometer brix or how it measures the concentration of solutes in a solution.
The provided paper does not mention the refractometer brix or the measurement of solute concentration in a solution. The paper is about a refractometer based on Si3N4-coated tapered optical fiber.

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