| 摘要 |
PCT No. PCT/EP90/02037 Sec. 371 Date Sep. 14, 1992 Sec. 102(e) Date Sep. 14, 1992 PCT Filed Nov. 28, 1990 PCT Pub. No. WO91/11707 PCT Pub. Date Aug. 8, 1991.An apparatus for determining the boiling temperature of a brake fluid to in turn determine the water content therein includes an electrically heatable sensor element (13) immersed into the fluid under test, a power source (12) supplying a current of a constant amplitude, and a measuring system (15) for measuring the voltage drop on the sensor element (13). A stable cellular convection heat transfer mechanism into the surrounding fluid arises, with the voltage drop across the sensor element (13) being indicative of the boiling point of the fluid. The sensor element is in the form of a linear conductor (13', 20, 21) clamped on either end. The sensor element also may comprise a plurality of linear conductors (13', 20, 21) of this type connected in parallel or in series.
|
