Board mount pressure sensors designed to measure low airflow

The new TruStability Board Mount Pressure Sensors, RSC series, offer enhanced reliability to minimise system downtime and provide high accuracy to reduce the reliance on software to correct system inaccuracies. This minimises design time, improves efficiency and often simplifies development.

With a small footprint that occupies less area on a printed circuit board, the sensors reduce overall system size to allow easier fit and potentially reduce production costs.

The RSC series’ extremely high measurement accuracy and design flexibility make the new pressure sensor ideal for a variety of applications and uses, including measuring:

• Breathing airflow in medical systems such as ventilators, affording precise control of ventilator trigger points and providing an accurate baseline for lung volume measurement and flexible sensor applications in both adult and pediatric devices
• Barometric pressure changes for drones or weather balloons to indicate altitude changes even at high altitudes and allow for rapid altitude changes of the device
• Airflow in HVAC ducts for precise control of airflow set points, significantly reducing the frequency of shutting down ducts to measure sensor offset

The TruStability Board Mount Pressure Sensors, RSC series, are piezoresistive silicon pressure sensors that include features such as:

• Total error band as low as 0.25% Full Scale Span
• Energy efficient operation with a power consumption of less than 10mW
• Miniature sensor size of 10x12.5mm (0.39x 0.49")
• Measurement accuracy of ±0.1% Full Scale Span Best Fit Straight Line
• Ability to read pressure ranges from ±1.6mbar to ±10bar, ±160Pa to ±1MPa, ±0.5inH₂O to 150psi, absolute range 1 to 8bar, and 15 to 150psi.

Robert Robinson, Senior Product Marketing Manager, Honeywell Safety and Productivity Solutions: “These new pressure sensors have a real-life impact. Their accuracy and reliability could help make buildings more energy-efficient by accurately measuring airflow across all HVAC systems. They can also enable healthcare providers to improve patient care and safety with more accurate readings of airflow in ventilators, including accurate calculations of lung volume to determine how much air to supply to the patient.”