1 db MQ8 MQ 8 MQ-8 füstcseppfolyósított gyúlékony metángáz érzékelő modul az Arduino Diy kezdőkészlethez
1PCS MQ8 MQ 8 MQ-8 Smoke Liquefied Flammable Methane Gas Sensor Module for Arduino Diy Starter Kit
Introduction to MQ-8 sensor:
The gas-sensitive material used in the MQ-8 gas sensor is tin dioxide (SnO2) with low conductivity in clean air. When there is combustible gas in the environment where the sensor is located, the conductivity of the sensor increases with the increase of the combustible gas concentration in the air. Using a simple circuit, the change in conductivity can be converted into an output signal corresponding to the gas concentration. The MQ-8 gas sensor has a high sensitivity to hydrogen and is ideal for monitoring other hydrogen-containing gases. This sensor can detect a variety of hydrogen-containing gases, especially city gas, and is a low-cost sensor suitable for a variety of applications.
Module application:
It is suitable for monitoring devices for hydrogen leakage in households or industries. It is not interfered with by ethanol vapor, oil fume, carbon monoxide, and other gases.
Module features:
1. Adopt high-quality double-panel design, with power indication and TTL signal output indication;
2. With doing switch signal (TTL) output and AO analog signal output;
3. TTL output valid signal is low level. (The signal light is on when the output is low, and it can be directly connected to the single-chip microcomputer or relay module)
4. The voltage of analog output, the higher the concentration, the higher the voltage.
5. It has good sensitivity for hydrogen detection.
6. There are four screw holes for easy positioning;
7. Product dimensions: 32(L)*20(W)*22(H)
8. It has a long service life and reliable stability
9. Fast response and recovery characteristics
Electrical performance:
Input voltage: DC5V Power consumption (current): 150mA
DO output: TTL digital quantity 0 and 1 (0.1 and 5V)
AO output: 0.1-0.3V (relatively pollution-free), the highest concentration voltage is about 4V
Special reminder: After the sensor is powered on, it needs to be warmed up for about 20S to stabilize the measured data. It is normal for the sensor to heat up, because there is a heating wire inside, if it is hot, it will not be normal.
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