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Greenhouse based on two-channel CO2 detection

A greenhouse and dual-channel technology, applied in the direction of using sound waves/ultrasonic waves/infrasonic waves to analyze fluids, etc., can solve problems such as unsatisfactory results, and achieve the effects of increasing stability, ensuring reliability, and enhancing sensing capabilities

Inactive Publication Date: 2016-11-09
肖小渝
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, due to the photosynthesis of plants in greenhouses, it is easy to accumulate a large amount of CO 2 When the concentration of other gases is too high, it will have a certain impact on the growth of crops and the health of operators. At present, greenhouses can simultaneously detect CO 2 , NO 2 etc. unsatisfactory

Method used

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  • Greenhouse based on two-channel CO2 detection
  • Greenhouse based on two-channel CO2 detection
  • Greenhouse based on two-channel CO2 detection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] This application provides a dual-channel CO based 2 The detected greenhouse, including the greenhouse body and the monitoring CO installed inside the greenhouse 2 , NO 2 SAW sensor for gas concentration; such as figure 1 The schematic diagram of the SAW sensor structure is shown. The SAW sensor has a five-channel structure, wherein channel three is used as a reference channel, and the sensitive areas of channel one and channel two are coated with sensitive film material one (01) for CO 2 Gas detection; the sensitive area of ​​channel 4 and channel 5 is coated with sensitive film material 2 (02) for NO 2 The detection of gas; the first and second channel sensitive film materials are three layers, and a layer of Ni film (03) is also magnetron sputtered between the sensitive film and the SAW device, and the thickness of the Ni film is 150nm; figure 2 show figure 1 The cross-sectional view of the coating sequence of Ni film and sensitive thin film material in the chann...

Embodiment 2

[0060] This application provides a dual-channel CO based 2 The detected greenhouse, including the greenhouse body and the monitoring CO installed inside the greenhouse 2 , NO 2 SAW sensor for gas concentration; such as figure 1 The schematic diagram of the SAW sensor structure is shown. The SAW sensor has a five-channel structure, wherein channel three is used as a reference channel, and the sensitive areas of channel one and channel two are coated with sensitive film material one (01) for CO 2 Gas detection; the sensitive area of ​​channel 4 and channel 5 is coated with sensitive film material 2 (02) for NO 2 The detection of gas; the first and second channel sensitive film materials are three layers, and a layer of Ni film (03) is also magnetron sputtered between the sensitive film and the SAW device, and the thickness of the Ni film is 170nm; figure 2 show figure 1 The cross-sectional view of the coating sequence of Ni film and sensitive thin film material in the chann...

Embodiment 3

[0077] This application provides a dual-channel CO based 2 The detected greenhouse, including the greenhouse body and the monitoring CO installed inside the greenhouse 2 , NO 2 SAW sensor for gas concentration; such as figure 1 The schematic diagram of the SAW sensor structure is shown. The SAW sensor has a five-channel structure, wherein channel three is used as a reference channel, and the sensitive areas of channel one and channel two are coated with sensitive film material one (01) for CO 2 Gas detection; the sensitive area of ​​channel 4 and channel 5 is coated with sensitive film material 2 (02) for NO 2 The detection of gas; the first and second sensitive film materials of the channel are three layers, and a layer of Ni film (03) is also magnetron sputtered between the sensitive film and the SAW device, and the thickness of the Ni film is 190nm; figure 2 show figure 1 The cross-sectional view of the coating sequence of Ni film and sensitive thin film material in th...

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Abstract

The invention relates to a greenhouse based on two-channel CO2 detection. The greenhouse includes a greenhouse body and a SAW sensor installed in the greenhouse to monitor the concentration of CO2 and NO2 gases. The SAW sensor is based on a SAW device, which has a five-channel structure, wherein a channel 3 serves as a reference channel, sensitive areas of a channel 1 and a channel 2 are coated with a sensitive film material 1 for detection of CO2 gas, sensitive areas of a channel 4 and a channel 5 are coated with a sensitive film material 2 for detection of NO2 gas. The greenhouse adopts two-channel simultaneous detection for each gas, greatly increases the stability of gas detection, ensures the credibility of sensor read data, and has good repeatability and excellent test stability under high temperature.

Description

technical field [0001] This application relates to the field of greenhouses, in particular to a dual-channel CO 2 Detection of greenhouses. Background technique [0002] The greenhouse, also known as the greenhouse, can transmit light and keep warm. It is a facility specially used for cultivating plants. In the seasons that are not suitable for plant growth, or under the harsh natural environment, the greenhouse can provide temperature, humidity, light and other conditions suitable for the growth of plants and crops to ensure their smooth cultivation. [0003] However, due to the photosynthesis of plants in greenhouses, it is easy to accumulate a large amount of CO 2 When the concentration of other gases is too high, it will have a certain impact on the growth of crops and the health of operators. At present, greenhouses can simultaneously detect CO 2 , NO 2 The effect is not ideal. Contents of the invention [0004] In order to overcome the problems existing in relat...

Claims

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Application Information

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IPC IPC(8): G01N29/02
CPCG01N29/02
Inventor 肖小玉
Owner 肖小渝
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