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Coal quality analyzer and coal quality detection circuit thereof

A detection circuit and coal quality technology, applied in the analysis of materials, material analysis through optical means, instruments, etc., can solve the problems of poor stability of coal quality detection, achieve the effect of improving detection stability and solving the effect of being easily disturbed

Pending Publication Date: 2020-06-09
长沙开元仪器有限公司
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Problems solved by technology

[0006] One purpose of the present invention is to provide a coal quality detection circuit, which can effectively solve the problems of poor stability of coal quality detection, and another purpose is to provide a coal quality detector including the above coal quality detection circuit

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  • Coal quality analyzer and coal quality detection circuit thereof

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Embodiment Construction

[0023] In order to make the above objects, features and advantages of the present invention more comprehensible, the specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0024] In the following description, specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways than those described here, and those skilled in the art can make similar extensions without departing from the connotation of the present invention. Accordingly, the present invention is not limited to the specific embodiments disclosed below.

[0025] Please refer to figure 1 , figure 1 It is a principle schematic diagram of a coal quality detection circuit provided by a specific embodiment of the present invention.

[0026] A specific embodiment of the present invention provides a coal quality detection circuit, inc...

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Abstract

The invention discloses a coal quality analyzer and a coal quality detection circuit thereof. The coal quality analyzer comprises a first infrared detector, a second infrared detector, a temperature sensor, an analog-to-digital converter, a CPU and a transceiver. The first infrared detector, the second infrared detector and the temperature sensor are respectively connected with the analog-to-digital converter; the analog-to-digital converter and the CPU are in connection; the transceiver and the CPU are in connection; in working time, the first infrared detector is used for measuring the peak-to-peak value of a reference signal; the second infrared detector is used for measuring the peak-to-peak value of a gas concentration signal; a dual-channel infrared detection signal and a compensation temperature signal are obtained, after the signals are converted into digital signals, the digital signals are sent out by the CPU through the transceiver, interference of external factors such as environment temperature, gas temperature and gas impurities on the infrared detectors is eliminated, detection stability is further improved, and in addition, by directly uploading the digital signals,the problem that analog signal sensing is prone to interference is solved.

Description

technical field [0001] The invention relates to the technical field of coal quality analysis, in particular to a coal quality detection circuit for a coal quality analyzer. Background technique [0002] In the field of coal quality analysis, elemental components C, H, S, etc. are the main indicators of coal settlement, and the above-mentioned elemental components directly affect the actual quotation of coal. [0003] At present, the existing coal quality analyzers are mainly measured by infrared spectroscopy. The detection principle is: when the infrared light passes through the gas chamber filled with the gas to be measured, because the C, H or S elements in the gas have infrared absorption characteristics, The intensity of the light will be weakened, according to the Lambert-Beer law: the absorbance is proportional to the concentration of the gas, and the percentage of the gas to be measured can be quantitatively obtained through this relationship. [0004] However, the e...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/3563G05D23/24
CPCG01N21/3563G05D23/24
Inventor 罗彬彬罗建文
Owner 长沙开元仪器有限公司
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