Vaisala Gas Monitoring MGP261 Probe Principle
As a renewable energy source, biogas has a wide range of application value in the energy field. The production of biogas is mainly in the anaerobic digestion process of organic waste, and its composition is more complex, mainly containing methane, carbon dioxide, water vapor and other trace gases. In order to achieve efficient use of biogas, the quality of biogas needs to be intelligently controlled. As a high-precision and high-stability gas detection device, the VAISALA MGP261 probe plays an important role in the intelligent control of biogas quality.
How the Vaisala MGP261 probe works:
The Vaisala MGP261 probe uses infrared spectral absorption technology to detect the individual gas components in biogas. Specifically, when a beam of light of a specific wavelength passes through the gas being measured, it is absorbed by the gas, resulting in a decrease in spectral intensity. By measuring the degree to which the gas absorbs light, the concentration of the gas can be calculated. The MGP261 probe has the characteristics of high measurement accuracy and good stability, and can quickly and accurately detect the concentration of methane, carbon dioxide and other gas components in biogas.
Process principle: The VAISALA MGP261 probe detects the concentration of gas components in the biogas and transmits the detected data to the data acquisition module.
The data acquisition module conditions and converts the signal output from the probe into a digital signal that can be processed by the microcontroller.
As the core control unit of the system, the microcontroller is responsible for receiving the signal of the data acquisition module, processing the data according to the preset control algorithm, and outputting the control signal.
The actuator performs actions based on the control signals of the microcontroller, such as adjusting the biogas flow rate, opening or closing valves, etc.
The human-machine interface provides an interactive interface between the operator and the system, through which the operator can view the biogas quality data, set control parameters, etc.
In the practical application of intelligent control system, it is necessary to select appropriate control algorithms and strategies according to the specific requirements and control objectives of the biogas treatment process. Commonly used control algorithms include PID control, fuzzy control, neural network control, etc. Through real-time monitoring and control of biogas quality, the quality of biogas can be ensured to be stable and meet the needs of subsequent utilization. At the same time, the intelligent control system can improve the automation level of the biogas project, reduce manual intervention, and improve production efficiency.
Advantages of the VAISALA MGP261 probe in intelligent control of biogas quality:
High-precision measurement: The MGP261 probe adopts infrared spectral absorption technology, which can achieve high-precision gas concentration measurement and ensure the accuracy and reliability of the measurement data.
Good stability: MGP261 probe has good stability and can operate stably for a long time in harsh biogas treatment environment.
Easy to integrate: MGP261 probe has standardized communication interface and data protocol, easy to integrate with intelligent control system, to achieve rapid data transmission and processing.
Model: TMW92 test transmitter, current output.
TMW93 test transmitter, voltage output.
HMW92(D) RH+T transmitter, current output (with display).
HMW93(D) RH+T transmitter, voltage output (with display).
HMW95(D) RH+T transmitter (with display) with Modbus RTU communication.
TMW90 test transmitter with configurable analog output model.
HMW90 RH+T transmitter with configurable analog-to-digital model.
hmd82， hmd82d， hmd83， hmd83d
hms82， hms82c， hms83， hms83c
hmw82， hmw82p100， hmw83， hmw88， hmw89. hmw89d
**82，tmw82， tmw88
Vaisala Gas Monitoring MGP261 Probe Principle