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Measuring instrument for water content in oil product based on infrared spectroscopy and measuring method

A technology of infrared spectroscopy and water content, applied in the field of oil water content measuring instrument and measurement, can solve the problems of poor transmission performance, difficult maintenance, low precision, etc., and achieve the effects of high sensitivity, high utilization rate of light energy and low cost

Inactive Publication Date: 2019-01-11
四川莱威盛世科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] In order to solve the above-mentioned technical problems, the object of the present invention is to provide an oil moisture content measuring instrument and measurement method based on infrared spectroscopy, which solves the problems of low precision, high cost, difficult maintenance and transmission of oil moisture content measuring instruments in the prior art. poor performance problem

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  • Measuring instrument for water content in oil product based on infrared spectroscopy and measuring method
  • Measuring instrument for water content in oil product based on infrared spectroscopy and measuring method
  • Measuring instrument for water content in oil product based on infrared spectroscopy and measuring method

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Embodiment 1

[0055] Embodiment 1 A kind of oil product water content measuring instrument based on infrared spectroscopy

[0056] Such as figure 1 with figure 2 As shown, the present invention proposes a kind of oil product water content measuring instrument based on infrared spectroscopy, comprising:

[0057] A sensor light source module 1 is used to emit lasers of two different wavelengths with a power of 5mW, including: a laser source 11 and a first wavelength division multiplexer 12, and the output terminals of the laser sources of two different wavelengths are connected to the first wavelength division multiplexer 12. The input end of the multiplexer 12 is connected, and the output end of the first wavelength division multiplexer 12 is connected with the input end of the optical fiber sensitive module 2; the laser sources (11) of the two different wavelengths include a wavelength of 1450nm water absorption peak The first laser source (111) of the wavelength is the second laser sour...

Embodiment 2

[0061] Embodiment 2 A kind of oil product water content measurement method based on infrared spectroscopy

[0062] Such as Figure 4 As shown, the present embodiment provides a method for measuring the water content of oil products based on infrared spectroscopy, which is based on the measuring instrument in Example 1, comprising the following steps:

[0063] Step S01: Put the oil product 4 to be tested in a container, and place the optical fiber probe 23 in the optical fiber sensing module 2 in the oil product 4 to be tested;

[0064]Step S02: When the length of the transmission optical fiber 22 is 1 meter, the sensor light source module 1 emits two laser sources with different wavelengths of 5 mW and integrates them into one channel through the first wavelength division multiplexer, and passes through the Y-shaped optical fiber 21 in turn. , the transmission optical fiber 22, the incident optical fiber 233, and the lens 231 are focused and incident on the oil product 4 to b...

Embodiment 3

[0076] Embodiment 3 A kind of oil product water content measurement method based on infrared spectroscopy

[0077] This embodiment is a preferred method based on Embodiment 2. Specifically, a method for measuring the water content of oil based on infrared spectroscopy also includes the following measurement steps with reference to the laser source, that is, the third laser source:

[0078] Step S11: The third laser source 113 in the sensor light source module 1 emits a reference laser with a wavelength of 1200nm and the 1450nm and 1730nm lasers emitted by the first laser source 111 and the second laser source 112 are integrated into one through the first wavelength division multiplexer 12. It is transmitted to the optical fiber sensitive module 2 in the channel, and then converged to the oil product 4 to be tested through the Y-shaped optical fiber 21 transmitting end x, the transmission optical fiber 22, the incident optical fiber 233, and the lens 231;

[0079] Step S12: The...

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Abstract

The invention provides a measuring instrument for water content in an oil product based on infrared spectroscopy and a measuring method and belongs to the technical field of sensors and detection. Themeasuring instrument comprises a sensor light source module (1), an optical fiber sensitive module (2) and a signal processing module (3). Two kinds of laser with characteristic absorption peak wavelengths of oil and water are emitted by the sensor light source module (1), are integrated into a channel and transmitted into a to-be-measured oil product (4) by virtue of the optical fiber sensitivemodule (2) so as to achieve an infrared absorption effect; the optical fiber sensitive module (2) is used for collecting the two kinds of infrared absorption light and transferring the light into thesignal processing module (3); and spectral characteristic curves of the two kinds of infrared absorption light are obtained by the signal processing module (3) and subjected to signal processing analysis so as to obtain the water content of the to-be-measured oil product (4). Compared with the traditional measuring instrument for water content in the oil product, the measuring instrument disclosedby the invention has the technical advantages of high precision, excellent transmission characteristic, convenience, high light energy utilization rate and low cost.

Description

technical field [0001] The invention relates to the technical field of sensors and detection, in particular to an infrared spectrometry-based oil water content measuring instrument and a measuring method. Background technique [0002] Water in oil directly affects the production, transportation, storage and use of oil. Generally speaking, water in oil products has the following hazards: [0003] (1) Light fuel oil contains water, which will increase the freezing point and deteriorate the low-temperature fluidity. If aviation fuel is flying at high altitude, ice will block the oil pipeline and interrupt the fuel supply. [0004] (2) If the lubricating oil contains water, it will freeze into ice particles in winter, which will block the oil pipeline and filter screen, and will increase the wear and tear of parts after some parts of the engine freeze. [0005] (3) If there is water in the electrical oil, its dielectric properties will be reduced due to the existence of water,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/39
CPCG01N21/39
Inventor 张一川王毅李保吉
Owner 四川莱威盛世科技有限公司