What are different types of fingerprint security?

Fingerprint scanners are used for various purposes and collection of data, from prisoners to allow access to information or high security areas. Types of fingerprint safety systems include an optical, silicon chip, ultrasound and thermal. After identifying the safety system of fingerprints, the person may have access to something. For example, a fingerprint image can be used instead of a written password for a computer system, or it can replace swipe cards that are used to get access to the building. The scanner reads fingerprints and records its functions - especially unique characters in the center of the fingerprint. The fingerprint image is then stored as a template for future recognition. The camera lights up the fingerprints, takes pictures, D then creates an inverse black and white picture. The camera automatically performs several fingerprint scans to ensure that a clear picture is stored. A picture that is too dark or too light will be difficult to read. If this happens, the OP camera will beTicky scanner to continue photographing until it is clear.

Fingerprint optical scanners have been for many years. They are often used for business purposes. The advantages of optical sensors include their relatively low costs and history relatively accurate. One disadvantage may be the difficulty in obtaining a bright image of the fingerprint.

Technology introduced in the 90's years is used to identify fingerprints. It works by radiating a weak electric current that senses and identifies the differences in the pattern on the fingerprint. This type of security technology is most often found in laptops and other small electronic regulations.

The third type of fingerprint safety scanner uses ultrasound - high -frequency sound - to identify fingerprints. The advantage of ultrasonic sensors is that they are not affected by dirt on the finger or sensing pad. However, to get a good picture must bI can make a good contact between your finger and the sensing plate.

Thermal fingerprint scanners work by measuring the temperature differences contained in the fingerprint samples. They offer a high level of safety. Unlike some other types, these scanners are difficult to trip with artificial fingers.

In addition to identifying prisoners or people who have access to computer networks, fingerprint scanners can be used in various applications. These include national identification systems, identification of lost or missing children, passports, voter records, bank transactions for credit cards or debit cards and penalties.