MEMS Sensors in Oxygen Concentrator Systems

MEMS-based sensing technologies enable real-time measurement of both airflow and oxygen concentration within compact, energy-efficient designs. By supporting precise monitoring and rapid response, these sensors help ensure reliable oxygen delivery across a range of operating conditions.

Enabling Precise Pulse Dose Delivery

In pulse dose mode, oxygen must be released within milliseconds of detecting inhalation.

MEMS sensors enable:

• Fast response to inspiratory trigger signals
• Accurate control of oxygen delivery timing
• Improved synchronization between device output and patient breathing
• Reduced wasted oxygen through precise dosing

This allows systems to deliver more efficient and comfortable oxygen therapy, particularly in portable devices.

Supporting Compact, Portable Designs

POCs prioritize portability, creating constraints on internal space and system architecture.

MEMS solutions address this by:

• Eliminating bulky sensing modules
• Enabling chip-level integration
• Reducing overall system size
• Allowing room for larger batteries or smaller device footprints
• This supports the development of lighter, more compact oxygen concentrators.

Maintaining Accuracy at Low Flow Rates

Oxygen concentrators must operate reliably across a wide range of flow conditions, including very low flow or standby states.

MEMS sensors provide:

• Stable measurement at low flow rates
• Reduced susceptibility to environmental disturbances
• Minimal zero drift for improved control accuracy

This ensures consistent performance across all operating modes.

Reliable, Low-Power Operation

Portable oxygen concentrators must balance performance with battery life and durability.

MEMS sensors offer:

• Group 7, Grouped objectLow power consumption for extended battery operation
• Solid-state construction with high shock resistance
• Stable performance without frequent recalibration

This enables long-term reliability in mobile healthcare environments.

A Proven Solution for Oxygen Concentrators: PMF82000 Series

Posifa’s PMF82000 series provides a dual-function MEMS solution designed for oxygen concentrator applications.

It delivers:

• Combined measurement of flow rate and oxygen concentration in a single sensor
• Ultra-fast response time (< 5 ms) for pulse dose control
• Compact design that replaces larger module-based solutions
• Stable, calibration-free operation over the device’s lifecycle

By integrating multiple sensing functions into a single compact package, the PMF82000 helps simplify system design while improving performance and efficiency.

Conclusion

For oxygen concentrators, especially portable systems, achieving accurate, responsive, and reliable sensing is essential to effective therapy. MEMS-based solutions provide the performance and integration advantages needed to support next-generation device designs.

Learn More

Explore Posifa MEMS sensing solutions or contact our team to discuss your oxygen concentrator application.

Contact our authorized distributors to order samples.