Tuesday, March 17, 2009

Classification of Data Matrix Scanners

About the Data Matrix Scanner

Data matrix scanner provides a wide range of barcode reading applications for the users. The device consists of a lens, a light source, and a light sensor that converts optical impulses into electrical impulses. All the barcode scanners are designed with decoder circuitry that analyzes the image data of barcode that are provided by the sensor and sends the content of the barcode to the output port of the scanner. By incorporating true contact reading and high resolution imaging technology, the data matrix scanner aid to the barcode reading application including poor printing and damaged barcodes or data matrix.

Types of Data Matrix Scanners

The scanning methods of data matrix scanners are differentiated by the amount of operation manipulation needed for the purpose. And, the types of scanners are distinguished by their technologies.

Pen Type Scanner: The pen type scanners are designed to swipe the pen over the code. The wave form generated by the dark bars and light bars are decoded by the scanner.

Laser Scanner: The laser scanners are developed with the same technology as the pen type scanners. However, they use a laser beam as the source of light and the back and forth of the laser beam across the bar code is scanned with either a rotating prism or a reciprocating mirror.

CCD Readers: This type of readers use array of tiny light sensors in the head of the reader. Unlike the Pen Type Scanners, CCD readers measure the emitted ambient light from the bar code.

Camera-Based Reader: This is another type of data matrix scanner that uses a small video camera to capture the images of a bar code.

Omni-Directional Barcode Scanners: Unlike the traditional barcode scanners, they produce a pattern of beams in changing operations that allow the device to read the barcodes at different angles.

The 2-D Barcode Scanner

The 2D barcode scanners are advanced barcode reading devices that are able to decode the smaller and high density 2D barcodes. The device also stores the data in two dimensions instead of creating a series of black and white bars. The 2D barcode scanners are developed with both imaging and CCD technology to identify the 2D barcodes. Of late, the type of scanners is the newest genre of barcode scanners available. They can provide an advanced solution to barcode reading applications. The high resolution image technology also enables reading of poorly printed and even the damaged 2D barcodes.

2Dbarcode scanners are developed with the latest technology for most demanding applications. The versatile device can automatically distinguish between barcode and all major 2D symbologies. The device also sports timestamp feature. Most of the 2D barcode canners support mobile computers.

The 2D barcode scanner has advantage over the one dimensional barcode reader as it can decode the 2D barcodes. As the 2D barcode contain more information than the traditional barcodes, they are being used more frequently these day and they have almost replaced the 1D barcodes. Hence, the 2D barcode scanners are more functional with their advanced features.

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