| 摘要 |
Method and apparatus for measuring oil quality based on the permittivity of the oil comprising a capacitive or radiative sensor for exposure to the oil, and an oscillator circuit including the sensor, wherein the oscillator circuit comprises a LC or crystal oscillator which provides an output signal, the amplitude of which is dependent upon the lossiness of the Tan delta of the oil, and a measuring device that responds to the amplitude of the output signal as a measure of oil quality. |
