Abstract: A method of preventing improper mixing of additives in a refueling storage tank includes receiving, by a computing device, data related to an additive introduced to the refueling storage tank from a sensor positioned in the refueling storage tank. The additive introduced to the refueling tank is determined, by the computing device, based on the data received from the sensor. An output is provided, by the computing device, when the determined additive does not match a predetermined additive for the refueling storage tank. Devices and systems for preventing improper mixing of additives in a refueling storage tank are also disclosed.

Abstract: A method of preventing improper mixing of additives in a refueling storage tank includes receiving, by a computing device, data related to an additive introduced to the refueling storage tank from a sensor positioned in the refueling storage tank. The additive introduced to the refueling tank is determined, by the computing device, based on the data received from the sensor. An output is provided, by the computing device, when the determined additive does not match a predetermined additive for the refueling storage tank. Devices and systems for preventing improper mixing of additives in a refueling storage tank are also disclosed.

Abstract: The invention relates to an optical sensor array detecting a first liquid medium in a second liquid medium by means of the reflection of an emitted light beam of a given wavelength, comprising a light source and an associated receiver, further two circular glass rod lenses running parallel to each other while encapsulated in a housing. The index of refraction of the glass rod lenses is different from those of the liquid media. A reflecting surface is situated opposite the glass rod lenses and is connected to the housing. Said array also comprises a control fitted with a beam splitter, a second receiver and a third receiver, the latter two receivers being configured being mutually opposite.

Abstract: The invention relates to an optical sensor array detecting a first liquid medium in a second liquid medium by means of the reflection of an emitted light beam of a given wavelength, comprising a light source and an associated receiver, further two circular glass rod lenses running parallel to each other while encapsulated in a housing. The index of refraction of the glass rod lenses is different from those of the liquid media. A reflecting surface is situated opposite the glass rod lenses and is connected to the housing. Said array also comprises a control fitted with a beam splitter, a second receiver and a third receiver, the latter two receivers being configured being mutually opposite.