MEMS Gas Sensor for Hydrogen Detection, 0.1~1000ppm

Gas sensors utilizing MEMS-MOS technology for hydrogen detection are for sale. With a detection range of 0.1-1000 ppm and robust linear output characteristics, the gas sensor delivers reliable readings even under varying humidity and temperature conditions. Requiring only 2.5V heating voltage and consuming ≤50 mW power,  SUCH hydrogen sensor is perfectly suited for both portable and fixed hydrogen detection systems.

Feature

• The MEMS hydrogen sensor features an all-solid-state design with a stable and reliable structure, eliminating the aging issues associated with traditional gas-sensitive components.
• Its integrated design balances performance and durability, while the lightweight packaging enables flexible installation for both portable and industrial applications.
• With low power consumption, it supports extended operation while reducing system energy usage. The hydrogen sensor delivers long-term reliability, maintaining sensitivity and stability across diverse complex environments.
• Integrated high-precision circuitry delivers outstanding interference resistance, effectively preventing false alarms.

Dimension (unit: mm)

Basic Circuit

Note: The figure above shows the basic test circuit for a MEMS gas sensor. This gas sensor requires two voltages: heater voltage (Vh) and test voltage (Vc). Vh is used to provide the sensor with a specific operating temperature and can be supplied by either a DC or AC power source. Vout is the voltage across the series load resistor (RL) of the sensor. Vc is the test voltage applied to the load resistor RL and must be supplied by a DC power source.

Sensor Curve

Temperature and Humidity Characteristic Curve

Sensitivity Logarithmic Characteristic Curve