MQ 125: Product Overview and Specifications
Introduction
MQ 125 is a sensor belonging to the category of gas sensors. It is widely used for detecting various gases in different applications due to its unique characteristics and functional features.
Basic Information Overview
- Category: Gas Sensor
- Use: Detection of Various Gases
- Characteristics: High Sensitivity, Fast Response Time
- Package: Compact and Durable
- Essence: Reliable Gas Detection
- Packaging/Quantity: Typically Sold Individually
Specifications
- Model: MQ 125
- Operating Voltage: 5V DC
- Power Consumption: <150mW
- Heater Resistance: 31Ω ± 3Ω
- Sensing Resistance: 3KΩ - 30KΩ (Dependent on Gas Concentration)
- Dimensions: 20mm x 20mm x 10mm
- Weight: 5g
Detailed Pin Configuration
- VCC
- GND
- Analog Output
- Digital Output
Functional Features
- High Sensitivity to Target Gases
- Fast Response Time
- Stable Performance
- Low Power Consumption
- Easy Integration with Microcontrollers
Advantages
- Accurate Gas Detection
- Compact Size
- Low Power Consumption
- Wide Range of Detectable Gases
Disadvantages
- Sensitivity to Environmental Factors
- Regular Calibration Required
Working Principles
The MQ 125 sensor operates based on the principle of chemical reaction between the target gas and the sensing material. When the target gas comes into contact with the sensing material, it causes a change in the sensor's resistance, which is then converted into an electrical signal for detection.
Detailed Application Field Plans
- Industrial Gas Monitoring
- Air Quality Monitoring
- Safety and Security Systems
- Environmental Monitoring
Detailed and Complete Alternative Models
- MQ 2
- MQ 3
- MQ 7
- MQ 135
In conclusion, the MQ 125 gas sensor offers reliable and accurate gas detection capabilities, making it suitable for various applications across different industries.
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10个与MQ 125在技术解决方案中的应用相关的常见问题及解答
What is MQ 125?
- MQ 125 is a type of sensor used for detecting and measuring various gases in technical applications.
What gases can MQ 125 detect?
- MQ 125 can detect gases such as methane, propane, carbon monoxide, and alcohol vapor.
How does MQ 125 work?
- MQ 125 works based on the principle of gas sensing using a semiconductor material that changes its electrical conductivity in the presence of specific gases.
What are the typical applications of MQ 125?
- MQ 125 is commonly used in gas leakage detection systems, industrial safety monitoring, and environmental monitoring for gas pollutants.
What is the operating voltage range for MQ 125?
- The operating voltage range for MQ 125 is typically between 5V to 24V DC.
How do I calibrate MQ 125 for accurate gas detection?
- Calibration of MQ 125 involves exposing the sensor to known concentrations of gases and adjusting the sensitivity using a potentiometer.
Can MQ 125 be used in outdoor environments?
- MQ 125 can be used in outdoor environments with proper weatherproof housing and protection from direct exposure to harsh elements.
What is the response time of MQ 125?
- The response time of MQ 125 varies depending on the specific gas being detected but is generally in the range of a few seconds to a minute.
Are there any limitations to using MQ 125?
- MQ 125 may have limitations in high humidity environments and may require periodic recalibration to maintain accuracy.
How can I interface MQ 125 with a microcontroller or PLC?
- MQ 125 can be interfaced with a microcontroller or PLC using analog voltage output or digital communication protocols such as UART or I2C, depending on the model and version.