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Sensirion AG Announce Launch of New Liquid Flow Sensor Microchips

Swiss sensor manufacturer Sensirion AG has announced the launch of the new liquid flow series LPP10 and LPG10 in an unsurpassed small size.

The new technology is based on planar microfluidic substrates and the sensors are available with a glass (LPG10) or a plastic (LPP10) packaging. Both versions have a footprint of a mere 10 x 10 mm. The glass version is extremely durable, while the plastic version is more suitable for disposable applications and is very cost-effective in high volume. Both versions are ideal for various medical and biomedical applications. The sensors have no moving parts and no obstacles in the flow path of the fluid.

Sensirion‘s new LPP10 and LPG10 Liquid Flow Sensors.

Innovative packaging enables Sensirion's highly sensitive thermal flow sensor microchips to measure non-invasively through the wall of a flow channel inside a microfluidic planar substrate. This design provides unique sensitivity for liquid flow measurement and bubble detection in the range of 0 to 1000 microliters per minute. The sensors are particularly suitable for monitoring flow rates and improving system performances in biomedical and life science applications.

Non-invasive flow sensing is possible thanks to the high sensitivity achieved with CMOSens® Technology. A small digital CMOSens® microchip (2.2 x 3.5 mm) is bonded to the microfluidic channel substrate. In addition to the sensor element, it houses the complete digital intelligence and the memory necessary for signal linearization, temperature compensation and self-test algorithms. The chip provides a fully digital I²C interface. Electrical contact is made via metallization above the microfluidic substrate. Fluidic ports below facilitate easy integration of discrete sensors into numerous designs. The sensor boasts a short flow sensing response time of 30 ms, and sensor resolutions down to 0.5 nl/min are feasible. A digital microsensor chip provides a fully calibrated digital output, eliminating the need for additional signal conditioning.

This significant simplification of liquid flow sensing technology enables extremely small and efficient sensor solutions. Customized solutions based on this technology can also be developed for various applications; standard versions are available immediately. For more information, please contact our sensor experts or visit www.sensirion.com/lpx.

About Sensirion

Sensirion AG, headquartered in Staefa, Switzerland, is the world's leading manufacturer of digital microsensors and systems. The product range includes humidity and temperature sensors, mass flow controllers, gas and liquid flow sensors, and differential pressure sensors. An international network with sales offices in the USA, Germany, China, Japan and Korea supplies international OEM customers with tailor-made sensor system solutions for a vast range of applications.

Among other things, these include analytical instruments, consumer goods and automobiles, as well as the medical and HVAC industries. One of the hallmark features of Sensirion products is the use of patented CMOSens® Technology. CMOS-based sensor elements and systems permit intelligent system integration, including calibration and a digital interface. Sensirion's credentials as a reliable OEM supplier are underscored by its ISO/TS 16949 certification.

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