The Need

In various industries, there is a growing demand for highly selective and sensitive gas sensors capable of accurately identifying specific gases within complex mixtures, addressing challenges in environmental monitoring, industrial safety, and healthcare diagnostics.

The Technology

This innovative sensor system utilizes a sensing element composed of p-type and n-type metal oxide semiconductors (MOS), forming a diffuse p-n junction. Electrodes are strategically placed to measure resistances within and between the MOS materials. A sophisticated controller analyzes these resistances to detect and identify the presence of specific gases by comparing results against a pre-calibrated database. This method enhances selectivity and sensitivity, effectively reducing cross-sensitivity issues common in traditional MOS sensors. The system's design allows for adjustable electrode distances, optimizing measurements for various gas samples.

Commercial Applications

• Environmental Monitoring: Detecting pollutants and volatile compounds in the air.
• Industrial Safety: Monitoring hazardous gases in manufacturing and chemical plants.
• Healthcare: Analyzing exhaled breath for medical diagnostics.
• Food and Beverage: Ensuring quality and safety by detecting spoilage-related gases.
• Smart Buildings: Enhancing indoor air quality through advanced HVAC systems.

Benefits/Advantages

• High Selectivity and Sensitivity: Precisely identifies specific gases even in complex mixtures.
• Reduced Cross-Sensitivity: Advanced design minimizes interference from non-target gases.
• Adjustable Measurement Parameters: Customizable electrode configurations for optimal performance.
• Robust and Reliable: Operates effectively in diverse and harsh environments.
• Compact and Scalable: Suitable for integration into various devices and systems.

Patent Protection

• United States Patent No. 9,170,225