The
digital MEMS sensor company Sensirion AG (Switzerland), announces new 4rd--generation
CMOS-based fuel cell flow sensor chips for ultra low flow rates (www.sensirion.com).
New products based on this
digital MEMS chips expand the company’s
existing line of liquid flow products.
The fully digital low-cost OEM components
can be calibrated for methanol on request and are intended to be integrated
into fuel cell and life-science applications.
The high level of on-chip integration
results in impressive potential for reductions in cost, size and weight.
The key feature of the 4rdgeneration
MEMS sensor chips is merging the sensor element with memory and digital
intelligence for linearization and temperature compensation on the same
MEMS sensor chip.
The components enable bubble detection
and accurate measurement of very low liquid flow rates down to micro- and
nanoliters per minute with very short response times and outstanding repeatability.
The thermal sensors work fully non
invasive, since the MEMS chip is mounted on the outside of a glass capillary
and senses through the wall of this channel (US Pat. 6813944).
Apart from micro liter sensors the
largest model available is designed for flow rates up to 20 ml/min.
The degree of miniaturization of
such sensors depends on customer needs regarding mechanics and power supply
– a mid size standard component weights about 6 grams (see photo).
Contact: www.sensirion.com, info@sensirion.com,
Tel. +41 44 306 40 00, Fax +41 44 306 40 30
About Sensirion:
Sensirion is a high-tech sensor
company based in Zurich, Switzerland. Sensirion is the leading international
supplier of intelligent CMOS-based sensor elements using patented CMOSensÒ
Technology for humidity/temperature sensors, mass flow measurement and
control devices for gases and liquids, and differential pressure sensors.
Sensirion provides international OEM customers with tailored sensor system
solutions for applications such as mass flow controllers, building automation
modules, medical technology, and consumer goods. Sensirion customers benefit
from intelligent system integration (integrated intelligence including
calibration and digital interface) and can achieve cost savings thanks
to easy system interfacing (ease of use) and modularity.
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