5 results about "Oil analysis" patented technology

The application discloses a method for analyzing ferromagnetic abrasive particles by using a PQ instrument, a data processing system and a PQ instrument comprising the same. First, the PQ index of a sample to be measured in a uniform distribution state and a uniform deposition state is respectively tested by using the PQ instrument; then, a deposition-to-averaging ratio is calculated by using the PQ index; then, a calculation correlation coefficient of the PQ index and the ferromagnetic abrasive particle content of the sample is obtained by using the deposition-to-averaging ratio; finally, the ferromagnetic abrasive particle content of the sample is obtained by using a formula. The application can not only make up for the defect that the traditional detection method of the PQ instrument cannot detect the ferromagnetic abrasive particle content, but also can roughly judge the size range of the ferromagnetic abrasive particles in the sample, has higher ferromagnetic abrasive particle content detection precision, has good sensitivity for large-size abrasive particle detection, widens the use and research range of the PQ instrument, and makes the abrasive particle detection method in oil analysis more scientific and diversified.

The invention relates to a malfunction prediction system and a method for construction machines enabling prediction of faults based on the oil analysis values obtained from construction machines, and thus enabling the identification of maintenance needs for the machine.

This invention relates to spectroscopic technology, specifically providing a method for oil analysis in water based on the fusion of ultraviolet absorption spectroscopy and three-dimensional fluorescence spectroscopy, comprising the following steps: A1. Obtaining oil samples of different types and concentrations, and obtaining the corresponding ultraviolet absorption spectra and three-dimensional fluorescence spectra; A2. Expanding the three-dimensional fluorescence data and ultraviolet absorption spectral data, corresponding to the excitation wavelength, and stitching the two together to obtain the fused spectrum, with absorbance as a separate column; A3. Decomposing the fused spectrum X and the dependent variable matrix Y; obtaining a set of T and U with the maximum covariance, thereby obtaining the model B=(T T T) ‑1 T T U; A4. Obtain a water sample, obtain the corresponding fusion spectrum according to A1 and A2, and use the model to obtain Y, thereby determining the type of oil in the water and the corresponding concentration. This invention has advantages such as accuracy.

A method of analyzing a lubricating oil may include: measuring a first concentration of components in a lubricating oil prior to introduction into a cylinder in a two-stroke engine using x-ray fluorescence, the components comprising: sulfur and total calcium; collecting a scrape-down lubricating oil that corresponds to the lubricating oil after having been passed through the cylinder during fuel combustion of a fuel comprising 0.5 wt % or less sulfur; measuring a second concentration of the components in the scrape-down lubricating oil using the x-ray fluorescence; and calculating an amount of acid neutralized during combustion based on the first and second concentration of the components. Based on said analysis a change to a property of the scrape-down lubricating oil and / or changing a feed rate of the lubricating oil into the cylinder based on the amount of acid neutralized may be implemented.

This invention belongs to the field of oil analysis technology and discloses an oil sample dispensing device and method based on a robotic arm. The device includes an automatic cap-opening and replenishing unit, a pouring and weighing unit, a robotic arm unit, a track unit, and a control unit. The automatic cap-opening and replenishing unit has X-axis and Z-axis motion axes, with grippers and pipettes installed at its ends. The pouring and weighing unit includes a tiltable pouring mechanism and a multi-station tray, with an independent weighing device below each station. The robotic arm unit moves on the track via adaptive grippers, enabling cross-unit transfer of sample bottles, caps, and sub-sample bottles. This structure enables automatic cap-opening operations on oil sample containers of different specifications and can dispense oil samples into designated consumable containers according to a preset program, thereby replacing traditional manual operations and improving sampling efficiency and accuracy.