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Posifa Technologies Introduces Next-Generation Air Flow Sensors

Posifa Technologies has announced its new PMF8300 series of mass air flow sensors for use in respiratory care and other medical and instrumentation applications.

Posifa TechnologiesCompared to the company’s previous-generation solutions, PMF8300 series devices offer improved accuracy, repeatability, and signal-to-noise performance — all at a lower cost.

Featuring compact, robust packages, the sensors introduced today serve as key components in ventilators, respirators, oxygen concentrators, nebulizers, and CPAP equipment, where they control the volume of air flow to patients. In addition, the devices provide mass flow measurement in spectroscopy and environmental monitoring equipment.

By providing the PMF8300 series at a lower price point, Posifa is offering a cost-effective upgrade path for new equipment designs while maintaining a supply of previous-generation solutions like the PMF4000, PMF2000, PMFc720, and PMFc40000 series of existing products. Furthermore, due to the devices’ simplified design, Posifa can scale up production of the PMF8300 series rapidly in response to sudden surges in demand.

PMF8300 series sensors feature Posifa’s third-generation thermal flow die, benefiting from the latest innovations in microfabrication. The sensor die uses a pair of thermopiles to detect changes in temperature gradient caused by mass flow, delivering excellent signal-to-noise performance and repeatability of 0.5 % F.S.

The “solid state” thermal isolation structure eliminates the need for the surface cavity or fragile membrane used in competing technologies. The sensor die, with its silicon carbide protective film, is robust against water condensation while allowing the highest level of sensitivity and minimizing the cost of packaging.

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Nitisha Dubey

A diligent writer, who has been working from last five years in the same field. She has covered lots of event and expo for travel & judiciary, now covering technology. Book reading, exploring different destinations and varieties of cuisine are some hobbies. Love to watch biographies and historical movies.

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