Measuring instrument and method for optical measurement of velocity and direction of particles
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United States of America Patent
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Oct 16, 2007
Grant Date -
Aug 28, 2003
app pub date -
Jun 8, 2001
filing date -
Jun 9, 2000
priority date (Note) -
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Abstract
Sensor chip, especially for measuring of structures in a finger surface, characterized in that it comprises an electronic ship being in a per se known way provided with a number of sensor electrodes for capacitance measurements, the chip being provided with a first layer comprising a metal or another electrically conducting material over and coupled to the sensor electrodes and a first dielectric layer substantially covering the first metal layer.
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