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Fermion: MEMS Hydrogen H2 Gas Detection Sensor

Fermion: MEMS Hydrogen H2 Gas Detection Sensor

₹1,495.00Price
🔍 Overview
The module is a MEMS-based gas sensor designed to detect Hydrogen (H₂) gas in the environment.
  • Target gas: Hydrogen (H₂)
  • Output: Analog signal proportional to gas concentration
  • Designed for low-concentration hydrogen detection and monitoring
👉 It is used for safety monitoring, especially in environments where hydrogen leakage is a risk.
⚙️ Working Principle
🧠 MEMS Chemiresistive / Micro-Heater-Based Sensing
Most MEMS hydrogen sensors operate using a metal-oxide semiconductor (MOS) sensing layer:
1. 🔥 Micro-Heater Activation
  • A built-in micro-heater heats the sensing material to an optimal temperature
2. 🌫️ Gas Interaction
  • Hydrogen gas interacts with the sensitive metal-oxide layer
  • Causes a change in electrical resistance
3. 🔄 Resistance Change
  • H₂ presence → resistance changes (typically decreases)
4. 📤 Signal Conversion
  • Internal circuitry converts resistance variation → analog voltage output
👉 Output voltage corresponds to hydrogen concentration.
📊 Measurement Characteristics
  • Detection range: typically tens to thousands of ppm (H₂)
  • Sensitivity: high for hydrogen gas
  • Response time: typically < 30 seconds (T90)
⚡ Electrical Characteristics
  • Operating voltage: 3.3V to 5V
  • Power consumption:
    • Higher than passive sensors due to heater
  • Requires stable power for heater operation
🔗 Output Interface
Analog Output
  • Voltage proportional to gas concentration
  • Requires:
    • ADC (microcontroller)
Signal Behavior
  • Clean air → baseline resistance/output
  • Hydrogen presence → measurable voltage change
🧠 Internal Features
✔ MEMS Microfabrication
  • Compact sensor design
  • Fast thermal response
✔ High Sensitivity to Hydrogen
  • Detects small concentrations effectively
✔ Fast Response & Recovery
  • Quick detection and return to baseline
✔ Compact Integrated Heater
  • Ensures proper sensing conditions
🔄 Operating Behavior
✔ Warm-Up Time
  • Requires initial warm-up for heater stabilization
✔ Continuous Monitoring
  • Designed for real-time hydrogen detection
✔ Environmental Influence
  • Affected by:
    • Temperature
    • Humidity
    • Airflow
🌡️ Environmental Characteristics
  • Works in typical indoor/industrial environments
  • Requires:
    • Good airflow for accurate sensing
⚠️ Limitations
  • Cross-sensitivity possible with:
    • Other combustible gases
  • Requires:
    • Calibration for accurate ppm measurement
  • Heater increases:
    • Power consumption
  • Sensor aging may affect long-term accuracy
🧩 Functional Role
The module acts as a:
  • Hydrogen gas detector
  • Analog gas concentration sensor
  • Safety monitoring component
🏁 Summary
The Fermion MEMS Hydrogen (H₂) Gas Sensor is a compact, sensitive gas detection module that:
  • Detects hydrogen gas using MOS-based MEMS technology
  • Uses a micro-heater for active sensing
  • Provides analog output proportional to concentration
  • Offers fast response and good sensitivity
  • Is optimized for hydrogen leak detection and safety systems
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