CN210665492U - Dual-waveband automatic calibration low-power-consumption mid-infrared gas sensor - Google Patents
Dual-waveband automatic calibration low-power-consumption mid-infrared gas sensor Download PDFInfo
- Publication number
- CN210665492U CN210665492U CN201921289991.4U CN201921289991U CN210665492U CN 210665492 U CN210665492 U CN 210665492U CN 201921289991 U CN201921289991 U CN 201921289991U CN 210665492 U CN210665492 U CN 210665492U
- Authority
- CN
- China
- Prior art keywords
- quantum well
- led
- antimonide
- type quantum
- type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model discloses an infrared gas sensor in automatic calibration low-power consumption of dual waveband, including one type quantum well LED and two type quantum well LED, one type quantum well LED's center is equipped with first antimonide multi-quantum well active area, is equipped with second antimonide multi-quantum well active area on the two type quantum well LED, and first antimonide quantum well active area obtains second antimonide quantum well active area through quantum well processing. The utility model adopts the gas sensing LED, eliminates the conventional requirement of reference gas channel through the electronic locking technology, and can realize continuous measurement; the problems of low received signal, low detection precision and the like caused by serious dust in the environment and dust coverage in the prior art are solved; the utility model discloses a quantum well LED of two different frequency channels has realized the self calibration function of LED signal attenuation under adverse circumstances, has laid the basis for the wide application of the gaseous LED of surveying of high accuracy. The utility model discloses a cost of manufacture is economical reasonable, excellent performance, suitable using widely in the society.
Description
Technical Field
The utility model relates to an equipment field specifically indicates an infrared gas sensor in automatic calibration low-power consumption of dual waveband.
Background
The LED is used for detecting the concentration of specific components such as carbon dioxide in the air, is a relatively new detection method at present, and has the advantages of non-contact measurement, high target gas selectivity, ppm-level detection sensitivity and the like. However, when the gas LED sensor works for a long time, the received signal is attenuated due to the influence of dust in the environment, and the concentration of the gas component in the air is misjudged. For this purpose, the sensor surface needs to be cleaned regularly by manpower, which is time-consuming and labor-consuming. Therefore, a dual-band auto-calibration low-power consumption mid-infrared gas sensor becomes an urgent problem to be solved in the whole society.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is that the LED detector among the prior art can cause the received signal decay owing to receive the influence of dust in the environment, and then can produce the misjudgment scheduling problem.
In order to solve the technical problem, the utility model provides a technical scheme does: the utility model provides an infrared gas sensor in automatic calibration low-power consumption of dual band, includes type one quantum well LED and type two quantum well LED, type one quantum well LED's center is equipped with first antimonide multi-quantum well active area, be equipped with second antimonide multi-quantum well active area on the type two quantum well LED, first antimonide quantum well active area obtains second antimonide quantum well active area through quantum well processing.
Further, the wavelength emitted by the type one quantum well LED is smaller than the wavelength emitted by the type two quantum well LED.
Furthermore, the first type quantum well LED and the second type quantum well LED adopt two emission modes of surface emission and end emission.
Furthermore, the first type quantum well LED and the second type quantum well LED are arranged in a rectangular structure.
Further, the first type quantum well LED and the second type quantum well LED are both gas sensing lasers.
Compared with the prior art, the utility model advantage lies in: the utility model relates to a dual-band automatic calibration low-power consumption mid-infrared gas sensor, which effectively solves the problems existing in the prior art and has the advantages of strong practicability, excellent performance and the like; the utility model adopts the gas sensing LED, eliminates the conventional requirement of reference gas channel through the electronic locking technology, and can realize continuous measurement; the problems of low received signal, low detection precision and the like caused by serious dust in the environment and dust coverage in the prior art are solved; the utility model discloses a quantum well LED of two different frequency channels has realized the self calibration function of LED signal attenuation under adverse circumstances, has laid the basis for the wide application of the gaseous LED of surveying of high accuracy. The utility model discloses a cost of manufacture is economical reasonable, excellent performance, suitable using widely in the society.
Drawings
FIG. 1 is a side view of a dual band self-calibrating low power consumption mid-IR gas sensor of the present invention;
FIG. 2 is a top view of a dual band self-calibrating low power consumption mid-IR gas sensor of the present invention;
FIG. 3 is a perspective view of a dual band self-calibrating low power consumption mid-IR gas sensor of the present invention;
figure 4 the utility model relates to a dual-band automatic calibration low-power consumption mid-infrared gas sensor's working principle diagram.
As shown in the figure: 1. the LED comprises a first type quantum well LED, a second type quantum well LED, a first antimonide multi-quantum well active region, and a second antimonide quantum well active region.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present invention will be described in detail with reference to the accompanying drawings.
The utility model provides an infrared gas sensor in automatic calibration low-power consumption of dual-band when specifically implementing, including one type quantum well LED1 and two type quantum well LED2, one type quantum well LED 1's center is equipped with first antimonide multiple quantum well active area 3, be equipped with second antimonide multiple quantum well active area 4 on two type quantum well LED2, first antimonide quantum well active area 3 obtains second antimonide quantum well active area 4 through quantum well processing. The utility model separates the information of gas energy absorption from the photoelectric measurement information of the working frequency band by two quantum well LEDs with different frequency bands and an electronic locking technology, thereby determining the concentration of specific components in the gas; and the concentration information of the working frequency band is calibrated, so that the dual-band self-calibration gas LED detector without manual intervention is realized.
As a further elaboration of the present invention, the wavelength emitted by the type one quantum well LED1 is less than the wavelength emitted by the type two quantum well LED 2.
As a further elaboration of the present invention, the first type quantum well LED1 and the second type quantum well LED2 adopt two types of emission modes, i.e., surface emission and end emission, and the emission mode is simple.
As a further elaboration of the present invention, the one type quantum well LED1 and the two type quantum well LED2 are arranged in a rectangular structure.
As a further elaboration of the present invention, the first type quantum well LED1 and the second type quantum well LED2 are gas sensing LEDs.
The utility model adopts the dual-band self-calibration gas LED detector, two quantum well LEDs with extremely narrow frequency bands grow at adjacent positions, and the information of gas energy absorption is separated from the photoelectric measurement information of the working frequency band by the electronic locking technology, so as to determine the specific components in the gas; the utility model discloses a cost of manufacture is economical reasonable, excellent performance, suitable using widely in the society.
The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.
Claims (5)
1. The utility model provides an automatic calibration low-power consumption mid infrared gas sensor of dual-band which characterized in that: the LED structure comprises a first type quantum well LED (1) and a second type quantum well LED (2), wherein a first antimonide multi-quantum well active region (3) is arranged at the center of the first type quantum well LED (1), a second antimonide multi-quantum well active region (4) is arranged on the second type quantum well LED (2), and the first antimonide quantum well active region (3) is processed through a quantum well to obtain the second antimonide quantum well active region (4).
2. The dual band self-calibrating low power consumption mid-infrared gas sensor of claim 1 wherein: the wavelength emitted by the first type quantum well LED (1) is smaller than the wavelength emitted by the second type quantum well LED (2).
3. The dual band self-calibrating low power consumption mid-infrared gas sensor of claim 1 wherein: the first type quantum well LED (1) and the second type quantum well LED (2) adopt two emission modes of surface emission and end emission.
4. The dual band self-calibrating low power consumption mid-infrared gas sensor of claim 1 wherein: the first type quantum well LED (1) and the second type quantum well LED (2) are arranged in a rectangular structure.
5. The dual band self-calibrating low power consumption mid-infrared gas sensor of claim 1 wherein: the first type quantum well LED (1) and the second type quantum well LED (2) are both gas sensing LEDs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921289991.4U CN210665492U (en) | 2019-08-10 | 2019-08-10 | Dual-waveband automatic calibration low-power-consumption mid-infrared gas sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921289991.4U CN210665492U (en) | 2019-08-10 | 2019-08-10 | Dual-waveband automatic calibration low-power-consumption mid-infrared gas sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210665492U true CN210665492U (en) | 2020-06-02 |
Family
ID=70810853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921289991.4U Active CN210665492U (en) | 2019-08-10 | 2019-08-10 | Dual-waveband automatic calibration low-power-consumption mid-infrared gas sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210665492U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110455736A (en) * | 2019-08-10 | 2019-11-15 | 南京信光半导体科技有限公司 | Infrared gas sensor in a kind of automatic calibration low-power consumption of two waveband |
-
2019
- 2019-08-10 CN CN201921289991.4U patent/CN210665492U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110455736A (en) * | 2019-08-10 | 2019-11-15 | 南京信光半导体科技有限公司 | Infrared gas sensor in a kind of automatic calibration low-power consumption of two waveband |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105593666B (en) | Gas sensor | |
| CN102636459B (en) | Forward scattering and transmission combined visibility measuring instrument and measuring method thereof | |
| EP2402713A1 (en) | Device and method for examining thin film | |
| US5101570A (en) | Inclination angle detector | |
| US8934102B2 (en) | System and method for determining fluid parameters | |
| CN103969203B (en) | The method for self-calibrating of TDLAS gas detecting systems | |
| CN210665492U (en) | Dual-waveband automatic calibration low-power-consumption mid-infrared gas sensor | |
| IN2012DN00222A (en) | ||
| CN102105779A (en) | Method for detection of gases by laser spectroscopy, and gas sensor | |
| JP6360430B2 (en) | Sensor apparatus and method based on wavelength center detection | |
| CN108051005A (en) | The single PSD detection methods of Target space position and posture | |
| KR102017257B1 (en) | Small-sized optical fine dust sensor capable of counting by particle size | |
| AU2014372312A1 (en) | Radiation detection apparatus and method | |
| CN104089880A (en) | Multichannel laser gas analyzer | |
| CN102507490B (en) | Gas detector | |
| US20150116709A1 (en) | Sensor and method for turbidity measurement | |
| CN104614338A (en) | Infrared gas analytical equipment and analytical method thereof | |
| CN106415241A (en) | Atr infrared spectrometer | |
| CN202676593U (en) | Infrared gas sensor with orthogonal absorbing cavity | |
| SE1950781A1 (en) | Multi wavelength breath analyzing system and method | |
| EP1194734B1 (en) | Method and device for log measurement | |
| CN110361360A (en) | Tunable laser half-wave scan control method and system for gas detection | |
| CN105510252A (en) | Chlorophyll detector | |
| CN214011057U (en) | Underwater multi-wavelength backscatter and fluorescence monitoring probe | |
| CN209485287U (en) | Honeycomb ceramic carrier apparatus for detecting diameter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |