Grove - Gas Sensor (MQ3) 氣體感測器模組

台灣智能感測科技官網, 購買更多關於 氫氣, 液化石油氣, 濃煙, 甲烷, 異丁烷, 酒精, 的產品

產品編號： SNA-000274

可用於檢測氣體洩漏（在家庭和工業中）。它可以檢測液化石油氣，異丁烷，甲烷，酒精，氫氣，somke等。根據其快速響應時間，可以盡快進行測量。靈敏度也可以通過電位器進行調整。

注意事項：Grove - Gas Sensor (MQ3) 氣體感測器模組所量測到的值只反映在允許的誤差範圍內近似的氣體濃度趨勢，但並不代表確切的氣體濃度。空氣中某些組分的檢測通常需要更精確和更昂貴的儀器，這不能用單個氣體傳感器來完成。如果您的項目旨在獲得非常精確的氣體濃度，那麼我們不建議使用這種氣體傳感器。

特色：

對酒精敏感度高，對汽油敏感度小
穩定和長壽
響應速度快，靈敏度高

Specification



Item
Parameter
Min
Typical
Max
Unit




VCC
Working Voltage
4.9
5
5.1
V


PH
Heating consumption
0.5
-
750
mW


RL
Load resistance

adjustable




RH
Heater resistance
-
33
-
Ω


Rs
Sensing Resistance
1
-
8
MΩ


Scope
Detecting Concentration
0.05
-
10
mg/L



Schematic

Grove Gas Sensor - EAGLE (Schematic and Board) files
Grove Gas Sensor - PDF Schematic

Datasheet

MQ-3 Datasheet

The Grove - Gas Sensor module is useful for gas leakage detecting(in home and industry). It can detect LPG, i-butane, methane, alcohol, Hydrogen, somke and so on. Measurements can be taken as soon as possible based on its fast response time. Also the sensitivity can be adjusted by the potentiometer.There are different gas detectors for sale, like  MQ2, MQ3,MQ5 and MQ9. Below is a contrast table of them.



Sysmbol
MQ-2
MQ-3
MQ-5
MQ-9


Detect Gas
Combustible Gas、Smoke
Alcohol Vapor
LPG, Natural Gas, Town Gas
Carbon Monoxide, Coal Gas, Liquefied Gas


Detect Concentration
300-10000ppm
0.04-4mg/L Alcohol
300-10000ppm
10-1000ppmCO;100-10000PPm Gas



Features

High sensitivity to Combustible gas in wide range
Stable performance, long life, low cost
Fast response
Wide detection range
Simple drive circuit

Technical Details



Dimensions
130mm x 90mm x 21mm


Weight
G.W 9g


Battery
Exclude

更多關於 Grove - Gas Sensor (MQ3) 氣體感測器模組 的技術文件與範例