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Bullet Sensors & Transducers e-Digest, Vol. 137, Issue 2, February 2012: Product News

    (ISSN 1726-5479)



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Mass Flow Sensors Establish New Performance Standards



PMFc3000 Sensor Family is a Drop in, Compatible Replacement for Honeywell AWM3000, Offering Improved Performance and Reliability


San Jose, CA February 23, 2011 – Posifa Microsystems, Inc., a leader in Advanced MEMS Sensor Development, stepped out of “stealth-mode” today to officially unveil its new line of improved Mass Air Flow Sensors. The PMFc3000 family, which is a pin compatible upgrade to the Honeywell AWM3000 series, incorporates the latest MEMS and microelectronics innovations. By replacing the common “membrane-cavity” structure with a proprietary “solid-state” thermal isolation process, Posifa’s sensors bring new levels of reliability to their customer’s applications, thus eliminating field failures associated with pressure shock and contamination that have for years has plagued other manufacturers.


In addition to meeting the same packaging and calibration specifications of the AWM3000, the PMFc3000 offers enhanced interchangeability by dramatically improving the initial output tolerance to less than 2 % Full Scale, compared to more than 5 % for the AWM3000.


The PMFc3000 sensor die uses a pair of compound thermopiles surrounding a central heating element to detect changes in temperature gradient caused by mass flow, delivering excellent signal-to-noise, and unsurpassed repeatability. The sensor’s internal signal conditioning circuitry leverages an off-the-shelf microcontroller, providing proven reliability and low cost.


The PMFc3000 series of mass gas flow sensors covers the ranges from 30 to 1000 sccm (standard cubic centimeter/minute) and can be special ordered with any Full Scale range between 10 and 2,000, balancing customers’ need for performance and cost efficiency. The sensors are fully calibrated and compensated over the temperature range of 0 °C to 50 °C (32 to 122 °F). Samples are available now. 1,000 piece price: $ 49.95/pc


Product PowerPoint Presentation available at: http://www.posifamicrosystems.com/PMFc3000_Introduction.pdf



About Posifa Microsystems, Inc.


Posifa Microsystems, Inc. headquartered in the heart of the Silicon Valley, provides advanced MEMS sensors, both in die and in packaged forms, to OEM customers worldwide. The former stealth-mode company spent years developing new and innovative sensor designs while refining manufacturing technologies that improve the performance of gas and liquid sensing elements. Posifa’s efforts have resulted in the advancement of greater long-term stability and reliability of sensors, especially when applied in corrosive and caustic environments.


From design to final production, Posifa Microsystems, Inc. offers standard and custom sensor solutions for a wide variety of customers, providing cost effective, high performance sensor devices to meet their challenging design requirements. Posifa Microsystems, Inc is a privately held company with headquarters in San Jose, Calif. For more information, please visit www.posifamicrosystems.com





Contact :


POSIFA Microsystems, Inc.

1925 Zanker Road, San Jose,

CA 95112, USA

Tel: 1-650-646-5788

E-mail: info@posifamicrosystems.com

Web: http://www.posifamicrosystems.com/


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