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In Depth Story, How does a fingerprint scanner work, learn all the details related to it

Fingerprint is used not only in the phone but also in your laptop, and your fingerprint in your required paper
New Delhi (JnN). Most smartphones are now launching in the market with fingerprint scanners. There are also fingerprint sensors in the special features of smartphones that have a lot of demand in the user. You use the fingerprint sensor in the smartphone to unlock your phone. Fingerprint sensor keeps your phone secure so that your phone can not unlock anything else. In addition to this, fingerprint is used not only in the phone but also in your laptop and in your documents as well as your fingerprint. But do you know how the fingerprint sensor of your phone works? So let’s know …
What is fingerprint sensor?
In simple words, we can tell it as a system that scans the surface of your finger, which changes them into a code that can be used to verify against the database. If you follow carefully, you will know that different types of fingerprint scanners are used in a security system. Let’s see what they are?
Optical scanner

Capacitive scanner works by measuring your finger electrically. Because there is a distance between each of your fingers, the capacitive scanner calculates these distances and creates an image of your fingerprint. Such scanners are identical to the touchscreen given in the iPhone and iPad. We will tell you how this process is completed, when you put your finger in the scanner. So let’s know …
First of all, in a scanner device where you keep a finger, a bright light burns. This light reflects on the CCD or CMOS image sensor by touching your finger through glass. If image capture process takes more time then the image will be bright on the image sensor. An algorithm is used for this test. It tells you that the captured image is too light or deep. After which the sound of a beep comes, which alerts you and then again brings you back to the process.

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