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Epsilon Questions >  Answer 3

Epsilon Answer 3

What kind of sensor does the Epsilon use ?


The Epsilon uses a Fujitsu MFB200 fingerprint sensor (Fujitsu Ltd, Japan), which has 76800 sensing elements arranged in a rectangular array measuring 12.8mm x 15mm. The contact surface is coated with a 2µm thick protective layer of SiO2.


  Each sensing element measures 50µm x 50µm and responds to the dielectric permittivity (dielectric constant) of the sample in contact with it. The native sensor response is digitised with 8-bit (0-255) resolution.

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