Traditional gas sensors used to detect methane—an explosive and environmentally harmful gas—have two major issues:
- They don’t provide direct, easy-to-understand methane concentration readings.
- They’re easily confused by other gases and changes in temperature, making them unreliable.
The Invention
This invention solves those problems with a smart, self-adjusting gas sampling device (called AirKeeper). It houses a set of sensors inside a compact, insulated chamber and uses a small fan to draw in and mix air for consistent readings. The device includes sensors for methane, hydrogen, propane (LPG), temperature, humidity, and air pressure.
A built-in processor reads all sensor inputs, filters out interference from other gases and environmental factors, and calculates an accurate methane concentration in parts per million (ppm). It can even automatically adjust its internal settings to remain accurate over time.
What’s Innovative
The key inventive step is a real-time algorithm that compensates for temperature shifts and gas interference. By comparing two methane sensors and adjusting their resistance values based on environmental readings, the device ensures that the methane reading is precise—even in complex, mixed-gas environments.
Tangible Benefits
- Delivers accurate methane readings in ppm
- Can trigger alarms or shutdowns in case of dangerous leaks
- Portable or mountable for use in homes, oilfields, landfills, or treatment plants
- Works in tough weather conditions with minimal setup
Broader Impact
This device enhances safety by detecting dangerous leaks early and accurately. It supports environmental efforts by monitoring methane, a potent greenhouse gas. Industries from energy to waste management can use it to prevent disasters and reduce emissions, making operations cleaner and safer for both workers and communities.