A system for determining a property of a fluid includes a sensing cable including an optical fiber sensor array located within the sensing cable; a heating element aligned with the optical fiber sensor array; and a nucleating surface, surrounding the sensing cable, to induce boiling of the fluid exposed to the nucleating surface when heated by the heating element. A system for determining a property of a fluid includes a sensing cable including an optical fiber sensor array located within the sensing cable; and a heating element, aligned with the optical fiber sensor array, to continuously heat the fluid exposed to the sensing cable. A system for determining a property of a fluid includes a sensing cable including an optical fiber sensor array; and a heating element, aligned with the optical fiber sensor array, to heat the fluid exposed to the sensing cable to induce nucleate boiling of the fluid.

A system for determining a property of a fluid includes a sensing cable including an optical fiber sensor array located within the sensing cable; a heating element aligned with the optical fiber sensor array; and a nucleating surface, surrounding the sensing cable, to induce boiling of the fluid exposed to the nucleating surface when heated by the heating element. A system for determining a property of a fluid includes a sensing cable including an optical fiber sensor array located within the sensing cable; and a heating element, aligned with the optical fiber sensor array, to continuously heat the fluid exposed to the sensing cable. A system for determining a property of a fluid includes a sensing cable including an optical fiber sensor array; and a heating element, aligned with the optical fiber sensor array, to heat the fluid exposed to the sensing cable to induce nucleate boiling of the fluid.