Thursday, January 30, 2020

How Fingerprint Scanner Works?

Dear All,

You must be excited to know, how within fraction of seconds your biometric fingerprint is being recognized and verified. Let it be the attendance system, identity verification system, or for any other purpose. Fingerprint scanners are a real boon in proactive forensic industry. Though everything has its own limitations as well. let us understand how these fingerprint scanner works?

Fingerprint Scanner



Types of Fingerprint Scanners:


Fingerprint sensors are commonly used for entry recognition and data security in smartphones and other wearables, as well as in the automotive industry and in smart home applications. The two most common fingerprint sensors in use today are optical sensors and capacitive sensors.

Optical Fingerprint Scanner


The working of an optical scanner is by pounding a light over the fingerprint placed over the sensor and taking a digital photo. The light-sensitive microchip generates the digital image (in the binary digit form) by looking at fingerprint ridges and furrows, converting them into 1's and 0's, and creating the user's own personal code. As a matter of fact discussed in the previous post, no two individuals have the exactly similar fingerprint pattern even in two fingers. Thats make a unique digital code. 

How fingerprint scanner works


Capacitive Fingerprint Scanner 


Increasingly, capacitive fingerprint scanners are used on phones and other digital devices. They measures your finger, similar to the capacitive touchscreen, by using human conductivity, creating an electrostatic field and creating a digital image based on the electrostatic field. Wow, how cool is this?

The capacitive fingerprint scanner uses tiny capacitor array circuits that track fingerprint details. It uses the ridges of your fingerprint placed over the conductive plates which change the load stored in the condenser while the valleys (air gaps) leave the load unchanged on the condenser. Such adjustments are monitored by an active amplifier integrator circuit, which can then be captured by an analog-to-digital converter where digital data can be analyzed. You can see below the ridges and furrows (valleys) on the human fingers. 

fingerprint ridges and furrows



Ultrasonic Fingerprint Scanner


These are the new and advanced technology used in most of the new smartphones. Instead of light as in the case with optical sensor, UFS uses the ultrasonic (sound) waves from the skin. The sound waves from the skin are unique as per the ridges and furrows and creates a 3D digital image of the unique fingerprint. And believe me, this is the most secure method in comparison to the other two. 

ultrasonic fingerprint scanner






7 comments:

  1. Nice Blog Post. Thanks For Sharing this informative post.
    Netflix help centre will help you by providing prior information regarding Netflix app and how to access its best services.

    netflixcom customer service
    netflix error codes
    netflix activation code
    netflix.com/activate
    netflix help center

    ReplyDelete
  2. Whether you're looking for a spectacular new logo or some stunning flyers, the talented global community of designers at Promote Abhi can make it happen. Promoteabhi.com prides itself on it's high quality designers who deliver only the best graphic design services. Find the right design service for you below and get design you'll love today! Promote Abhi is one of the leading and passionate graphic design service providers in the online market.
    Matriculation is the formal process of entering a university, or of becoming eligible to enter by fulfilling certain academic requirements such as a matriculation examination. Matriculation means a process or the course is given for any examination. Whether the processor syllabus is for the 10th board examination
    Expert recommended Top 3 Interior Designers in Gorakhpur, Uttar Pradesh. All of our interior designers actually face a rigorous 50-Point Inspection, which includes customer reviews, history, complaints, ratings, satisfaction, trust, cost and their general excellence. You deserve only the best! All Gorakhpur, Uttar Pradesh interiors designers require specific schooling and formal training. They use their specialised knowledge of interior architecture!
    Real-time problems and outages for PlentyOfFish (POF). Can't log in? Is the server down? Here you see what is going on.

    ReplyDelete
  3. PPC advertising is one of the best digital marketing strategies to introduce your business to people who are looking for your products or services during their search. With the right PPC company and strategy, you can manage more websites, drive better leads, and ultimately get more customers.

    At Promote Abhi, with all the above mentioned factors in mind, we work hard to deliver the best results with our mission. The report includes detailed information about the project from start to finish along with the key points.

    ReplyDelete
  4. Great post!

    The spectrum Wi-Fi name change how to do this, who can help you out? Have a look below to understand the detailed information about spectrum Wi-Fi and troubleshooting problem.

    change Wi-Fi name spectrum

    spectrum Wi-Fi name change

    spectrum support number

    ReplyDelete
  5. I am pleased that I discovered this post, precisely the right info that I was looking for! Visit also Proximity Sensor

    ReplyDelete
  6. Promote Abhi is a leading digital marketing agency in India at best price from Jaipur, Noida, Mumbai, Chennai, Bangalore, Ahmedabad and Delhi.

    ReplyDelete