On-line oil particle pollution degree detection sensor based on optical sensing

A detection sensor and optical sensing technology, which is applied in the field of sensors, can solve the problems of component on-line oil detection sensor measurement error, large impact on measurement results, unfavorable on-line detection, etc., to achieve accurate measurement, increase use convenience, Correct the effect of photoelectric conversion drift

Inactive Publication Date: 2011-04-06
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. When replacing lubricating oil for mechanical equipment, if the oil in the reference oil pool is not replaced, the different colors of lubricating oil of different brands and batch numbers will have a great impact on the measurement results
Every time the oil in the reference oil pool is replaced synchronously, it will inevitably bring inconvenience in use, which is not conducive to the realization of online detection
[0006] 2. In addition to the influence of light intensity on the measurement results that needs to be eliminated, the aging phenomenon of components will also cause measurement errors of the online oil detection sensor
Existing detection schemes do not solve this problem

Method used

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  • On-line oil particle pollution degree detection sensor based on optical sensing
  • On-line oil particle pollution degree detection sensor based on optical sensing
  • On-line oil particle pollution degree detection sensor based on optical sensing

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Embodiment 1

[0025] Such as figure 1 As shown, the online oil particle pollution degree detection sensor based on optical sensing is mainly composed of a light source 1, a 1×3 optical coupler 2, a first adjustable optical filter 3, a second adjustable optical filter 4, a first self- Focusing lens 5, second self-focusing lens 6, third self-focusing lens 7, first reference optical path oil pool 8, measurement oil pool 9, second reference optical path oil pool 10, fourth self-focusing lens 11, fifth self-focusing Lens 12, the sixth self-focusing lens 13, the first optical detector 14, the second optical detector 15, the first incident optical fiber 16, the second incident optical fiber 17, the third incident optical fiber 18, the first outgoing optical fiber 19, the second The outgoing optical fiber 20 and the third outgoing optical fiber 21 are formed; the input end of the 1×3 optical coupler 2 is connected with the light source 1 by the optical fiber, and the output end of the 1×3 optical c...

Embodiment 2

[0035] Such as figure 2 As shown, the online oil particle pollution degree detection sensor based on optical sensing is mainly composed of the first light source 1, the second light source 2, the first 1×2 optical coupler 3, the second 1×2 optical coupler 4, the first Self-focusing lens 5, second self-focusing lens 6, third self-focusing lens 7, fourth self-focusing lens 8, reference optical path air pool 9, measuring optical path oil pool 10, first photodetector 11, second photodetector 12. The first incident optical fiber 13, the second incident optical fiber 14, the first outgoing optical fiber 15, and the second outgoing optical fiber 16 are formed. The input end of the first 1×2 optical coupler 3 is connected to the first light source 1 by an optical fiber, and the first The output end of the 1×2 optical coupler 3 is divided into two paths, which are respectively connected to one end of the first incident optical fiber 13 and the second incident optical fiber 14, and the...

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Abstract

The invention discloses an on-line oil particle pollution degree detection sensor based on optical sensing. The input end of a 1*3 optical coupler of the sensor is connected with a light source through an optical fiber, the output end of the 1*3 optical coupler is divided into three paths, and the first path is sequentially connected with a first incidence optical fiber, a first self-focusing lens, a first reference optical path oil pool, a fourth self-focusing lens, a first emergence optical fiber and a first optical detector; or the input end of a first 1*2 optical coupler of the sensor is connected with a first light source through an optical fiber, the output end of the first 1*2 optical coupler is divided into two paths which are respectively connected with a first incidence optical fiber and a second incidence optical fiber, and the first path of first incidence optical fiber, first self-focusing lens, reference optical path air pool, third self-focusing lens, first emergence optical fiber and first optical detector are sequentially connected. By adopting a multi-channel system, different influences on colors of different trades and batch numbers of lubricating oil are corrected, and the influence on measurement light source and light path drift is modified.

Description

technical field [0001] The invention relates to a sensor, in particular to an on-line oil particle pollution degree detection sensor based on optical sensing technology, in particular to a multi-channel on-line oil particle pollution degree detection sensor based on optical sensing technology. technical background [0002] At present, the replacement plan for mechanical equipment lubricating oil is mainly to refer to the recommended oil change period, and implement oil change according to the use time or mileage. The quality of lubricating oil has a major impact on the normal operation of each friction pair of the power-transmission device. This scheme of fixed oil change intervals cannot accurately consider the operating environment of the power-transmission device and the degree of deterioration of the lubricating oil, which has major disadvantages: If the lubricating oil is replaced early, it will waste manpower and lubricating oil costs, and cause unnecessary equipment o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/27G01N21/01
Inventor 张勇艾芳旭宁啸
Owner SOUTH CHINA UNIV OF TECH
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