Product Overview
| Measuring Principle | Tunable Diode Laser Absorption Spectroscopy (TDLAS) Technology | ||
| Light Source | Semiconductor laser | ||
| Semiconductor Laser | Linearity Error | ≤ ±1%F.S. | Conventional Range |
| Repeatability | ≤ 1% | ||
| Range Drift | ≤ ±1% F.S./Half a year | ||
| Zero Drift | ≤ ±1% F.S./Half a year | ||
| Maintenance Cycle | ≤ 2 times /year (related to working conditions) | ||
| Calibration Period | ≤ 2 times /year | ||
| Response Time (T90) | ≤ 30s times (without pretreatment) | ||
| Gas Chamber Temperature | ≤ 200 ℃ | ||
| Response Time | Analog Output | 1 channel 4-20mA | |
| Communication Interface | RS485 | ||
| Working
Conditions |
Power Supply | 24VDC ≤15W | |
| Ambient Temperature | -20℃ ~ 60 ℃ | ||
| Flow | 0.5L/min~2L/min | ||
TDLAS stands for Tunable Diode Laser Absorption Spectroscopy, and it is a technique used for gas sensing and analysis. TDLAS gas modules are devices that utilize this spectroscopy technique to measure the concentration of specific gases in a sample.
In TDLAS, a laser diode emits light at a specific wavelength that is absorbed by the target gas molecules. By measuring the amount of light absorbed by the gas sample, the concentration of the gas can be determined. TDLAS offers high sensitivity, selectivity, and accuracy in gas analysis, making it suitable for various applications such as environmental monitoring, industrial process control, and scientific research.
TDLAS gas modules typically consist of a laser source, optical components, a gas cell or sampling system, and a detector. The laser emits light at specific wavelengths that correspond to the absorption lines of the target gas. The light is then transmitted through the gas sample, and the amount of absorbed light is measured by the detector. Based on the absorption signal, the gas concentration can be calculated.
These gas modules are often integrated into larger systems or instruments for specific applications. They may include additional features such as temperature and pressure compensation, data logging capabilities, and communication interfaces for data transfer and control.
Overall, TDLAS gas modules are widely used for precise and reliable gas analysis in various industries and research fields.
Features:
Compared with other gas analyzers, this laser gas analysis module has the following main features:
Working Principle
Measuring carbon dioxide (CO2) is important for understanding the role it plays in the environment and its effect on climate change. CO2 is a major component of Earth’s atmosphere, and it traps heat like a blanket, causing global temperatures to rise. Too m uch CO2 can lead to drastic changes in our weather patterns and ecosystems, so monitoring its levels is essential for predicting future climate conditions. Additionally, measuring CO2 can help us better understand our impact on the environment and make informed decisions about how to reduce emissions and slow down down down down down global warming. By analyzing CO2 data over time, we can develop strategies to mitigate the effects of climate change and ensure a sustainable future.
Before industrialization, the global average annual atmospheric carbon dioxide concentration was 278ppm (1ppm is one part per million). In 2012, the global annual average atmospheric carbon dioxide concentration was 393.1ppm. By April 2014 , the monthly average carbon dioxide concentration in the northern hemisphere atmosphere exceeded 400ppm for the first time. . 2. Global climate warming, the continuous aggravation of the atmospheric greenhouse effect leads to global climate warming, resulting in a series of global climate problems that cannot be predicted by today’s science. According to the International Climate Change Economics Report, if human beings maintain the current way of life, by 2100, there will be a 50% chance that the global average temperature will rise by 4°C.
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