Company achieves the world's highest flow impedance driving performance parameters up and driving manufacturing costs down
CHICAGO, June 8 /PRNewswire/ -- Sensors Expo & Conference - Microbridge Technologies, Inc., the leader in passive, analog precision calibration products (Rejustors), today announced a family of Nano-Air-Flow Differential Pressure Sensors targeted at medical respiratory and industrial HVAC applications. Microbridge is demonstrating the capabilities of these sensors at The Sensors Expo, June 8 - 10, booth #522.
The new devices incorporate a thermal anemometer element and CMOS Analog conditioning circuitry with a micro-flow channel having very high flow-impedance that allows accurate sensing of low differential pressures over a wide dynamic range. The flow-impedance is pre-defined at the die-level, requiring only 2.5nl/sec of air flow and thus dramatically relaxing demands on subsequent packaging operations, resulting in a smaller, lower-cost solution.
"We are faced with an aging population and with it a growing need for access to affordable and top medical care," said Bob Vaupshas, president & CEO at Microbridge. "Respiration equipment, spirometers and sleep apnea apparatus are just some of the medical tools needed to address this longer life span. Our technology makes it less expensive and enables better performance than current solutions."
Microbridge's approach allows the sensor to be constructed with flow impedances of up to several hundred thousand Pascals, more than 1,000 times greater that other competing technologies. Key advantages of this nano-air-flow approach are the virtual elimination of leakages, greatly reduced susceptibility to poor filtration, a smaller footprint (often less than 50% of alternative solutions) and the enablement of very low cost package options. Additionally, the Microbridge approach facilitates the use of long hoses, dissimilar diameters, with or without filtration, with no impact to calibration. These Sensors are an ideal solution in medical respiration applications where it is necessary to measure full-scale differential pressures of approximately 15" H2O, with a greater than 10(4) dynamic range, and with extreme resistance to contamination.
The CMOS die itself consists of the sensor element, amplification and analog adjustability through the use of rejustors, enabling near zero TC-Span without digital compensation. Sensitivity is less than 0.1 Pascal, (0.004 inches of H2O) the lowest in the industry and ideal for detecting small changes in air flow for respiration and ventilation in medical applications; heating and cooling in industrial HVAC environments; and intrusion detection in secured environments.
Pricing & Availability
Available directly from Microbridge, the MB-LPS-01 (for industrial/HVAC) and the MB-LPS2-01 (for medical/respiration) are priced below $10 in high volume.
For more information on Rejustors, please click on http://www.mbridgetech.com/whitepaper.php for a Microbridge technical whitepaper on Rejustors. Product images are available at http://www.mbridgetech.com/press/images
About Microbridge Technologies
Microbridge, the inventor of the Rejustor(TM), simplifies analog design by giving engineers a new dimension of precision and flexibility to electrically calibrate the accuracy of their designs and "tune-out" the adverse effects of temperature, reduce design complexity, lower costs and improve time-to-market. Having successfully applied this technology in stand alone situations, Microbridge has begun an aggressive effort to integrate rejustor technology into proprietary sensing applications. Microbridge's flow sensors start with proprietary design techniques that pre-define flow impedance at the die level. Microbridge sensors dramatically reduce demands on subsequent packaging, and individual units require no offset or gain compensation. Applications include: HVAC, Medical CPAP, Blood pressure monitors and more. Microbridge is a privately held company with headquarters in Montreal, Canada and offices in Boston, Mass and San Jose, Calif. For more information please visit www.mbridgetech.com
|SOURCE Microbridge Technologies, Inc.|
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