| 摘要 |
A method for determination of operational properties of liquid with use of spectral analysis and impedance relates to computer engineering and can be used at diagnostics of operational properties of liquids in different technical means. The method consists in that the liquid under investigation is placed between two electrodes, with passing electric current and with determination of the value of voltage drop, according to which the conclusion on operational properties of liquid is made. Feed of electric current through liquid is performed with electric signals as a pulse, cycle of pairs of heteropolar pulses, or a series of pulses. In the process of flow of electric current the form of the pulses, amplitude-frequency and phase characteristics of those are changed. Duration of signal as a pulse, a cycle of pairs of heteropolar pulses and a series of pulses is determined by the specified dependences, respectively. Total complex electric resistance (impedance) of liquid is measured, with determination of amplitude and phase spectra of responses to the signals, by the ratios of those the conclusion is made on operational properties of liquid. Form of the pulse in the signal can be rectangular, trapezium-like, scalene trapezium, triangular, cupped or exponential. Additional electrodes can be placed between the main electrodes. The planes of the additional electrodes can be installed normally with respect to the planes of the main electrodes, or installed in parallel to the planes of the main electrodes. One of the pair of the main electrodes can be brought into coincidence with one of the additional electrodes. The technical result is in increase of accuracy and self-descriptiveness of determination of operational properties of liquid. |
