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US 2019/0003872 A1Published application
Optical System, and Method for Identifying Fluid Through Said System
AssigneeRobert Bosch Limitada
InventorMarcos Melo ARAUJO
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AssigneeRobert Bosch Limitada
InventorMarcos Melo ARAUJO
Estimating the term…
The present invention relates to the technological field of optical systems and refers to a device for identifying, at least one fluid, especially, fuel fluids in vehicle tanks. The device in question includes an optical guide having interaction surfaces and an emitter element emitting light beams and at least one receiving element of light beams. The information received from the receiving element includes the reflection emitted by interaction surfaces which are at the submersed region of the optical guide and indicates the type of fluid stored in the reservoir—for example: ethanol, gasoline or a mix of both. The interaction surfaces are inclined at different angles to provide total reflection for fluids with a different refractive index, including blends of fluids, to allow determination of the type of fluids according to the reflection by the interaction surfaces.
Optic system for identifying at least one type of fluid, in which said system comprises at least on optical guide cooperating with at least one emitter element of at least one light beam and at least one receiving element of light beams, in which said optical guide comprises a recipient having interaction surfaces conforming at least one optic path for the light beams, characterized in that:
Method, according to claim 18, characterized in that the refraction index of, at least, one fluid in liquid or gas form defines the critical angle for light beam reflection in an interaction surface in submerse condition.
Dependencies are inferred from the claim text.