Add titleHow To Work Fingerprint Scanner & What Is Fingerprint Sensor – 2021
How to work fingerprint scanner In the market, most smartphones are now being launched with fingerprint scanners. The fingerprint sensor in the smartphone is used to unlock the phone. But do you know how your phone’s fingerprint sensor works?
What is a fingerprint sensor?
In simple terms, we can describe it as a system that scans the surface of your finger and transforms it into a code that can be used to validate the database. If you look carefully, you will come to know that different types of fingerprint scanners are used in a security system.
How Many Types of Figerprint scanner and How To Work Fingerprint Scanner
Fingerprint scanners are mainly of two types which are as follows.
It works by electrically measuring your finger, as there is a distance between each finger of your hand, the capacitive scanner calculates these distances to create an image of your fingerprint.
Such scanners are similar to the touchscreens provided in iPhones and iPads. First, where you place your finger in the scanner device, a bright light burns. Through the glass, this light touches your finger and reflects back on the CCD or CMOS image sensor.
If the image capture process takes longer, the image will be bright on the image sensor. An algorithm is used for this testing. This tells you whether the captured image is too light or deep. After which comes the sound of a beep, which alerts you and then takes you back to the first process.
This device alerts you even when the captured image does not have any alternative light and sufficient light.
After these tests, the scanner tells you whether the image is correct or to use another LED indicator through beeping.
Now the accepted image is saved in the flash memory. Is transmitted to a computer for the next step.
Now it will be the job of the computer to save the image in the database or compare it with the fingerprint already saved in the database.
conculasion– So we have learned in this article how to work fingerprint scanner,if you like this article, then do comment
Hello, I am Rakesh Jain a website learner and internet information expert. I think everyone should get free blogging and internet information so that you too can start your own online business. We share information from basic to advanced level here.