Three-dimensional oil contamination degree detector

A technology of oil pollution degree and detector, applied in the field of detection circuits, can solve the problems of overlapping, affecting the accuracy of measurement results, and uneven particle distribution.

Inactive Publication Date: 2010-06-23
北京航峰科伟装备技术股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the existing photoresisting particle size analyzers on the market are all measured by a single optical channel. If the particle distribution in the measurement area is uneven or the overlapping of particles occurs, it will directly affect the accuracy of the measurement results.

Method used

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Embodiment Construction

[0025] Specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0026] as attached figure 2 Shown: the present invention includes a housing, a semiconductor laser, a measuring probe, a photoelectric conversion circuit, an I-V conversion circuit, a comparison circuit and a counter counting circuit. A measuring probe is arranged in the casing, and optical glass windows are arranged on both side walls of the measuring probe. A group of lenses is set between the measuring probe and the semiconductor laser, and the right side wall of the measuring probe is provided with an optical glass window, and a photoelectric converter is provided on the corresponding side. The number of lenses in this embodiment is three, and they are relatively arranged on the left side of the measuring probe. side. The photoelectric converter of this embodiment uses a photosensitive element, and the photosensitive element is connected with a...

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Abstract

The invention relates to a three-dimensional oil contamination degree detector for counting particles in various oil. The detector is based on a photoelectric principle; to-be-detected oil passes through a avoid between transparent thin plates; the light of a light-emitting diode adopts parallel light beams after passing through a convex lens; the parallel light beams are radiated onto a receiving head of the receiving light-emitting diode after passing through the transparent thin plates of the through oil; and current signals can be generated at two ends of the receiving light-emitting diode are generate at the moment. Because a signal level is in proportion to the dimension of each particle, the number of the particles contained in the oil can be determined according to the number of impulses, and the dimension of each particle can be determined according to an impulse level. After the level signal is detected and classified by a processing circuit, the contamination degree of the oil can be judged. The invention has the advantages of high measurement accuracy, high stability and convenient use.

Description

technical field [0001] The design invention belongs to a detection circuit, and mainly relates to a photoelectric conversion circuit and a counting output circuit for counting particles in various oil liquids. Background technique [0002] Oil is the working medium of the hydraulic system. The transmission of control information and working power of the hydraulic system must be completed through the oil. The working conditions and service life of components such as hydraulic pumps, hydraulic motors, and various valves are related to the hydraulic oil. Performance is closely related. In recent years, in order to monitor the oil in real time to ensure the safe operation of the hydraulic system, many research departments have designed a variety of test methods for the solid particles of pollutants in the oil based on the fact that the solid particles in the oil are the factor that causes the attenuation of transmitted light. However, the current test circuit mostly uses the de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/14
Inventor 邓可张金伟孙君起
Owner 北京航峰科伟装备技术股份有限公司
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