Barcode scanners are being used widely for various purposes at present. At present, the retailing shops, airport, shopping malls, Banks and financial institutions, online tickets, etc all have started using this facility widely. The EAS System sellers in Kolkata can offer you the best services for installing the right type of scanner for your Business. Before taking the discussion further, let us first try to understand about the Bar Code Scanners in more detail.
The Barcode Scanner sellers in Kolkata provide various types of Barcode Scanners. In order to select the right type of Barcode Scanner, it is necessary to understand about this system to make a qualified decision. The Barcode Scanner normally comprises of three parts. These are the Illumination system, the scanner and converter and the decoder. The work is started by illuminating the Barcode with suitable red light. The reflected light from the illumination system is sensed by the sensor. Further, an analogue signal is generated having varying voltage. The voltage represents the intensity of the reflection. The analogue signal is further converted to digital signal by the converter and this digital signal is fed to the decoder system. The digital signal is interpreted by the decoder. The decoder is responsible to confirm and further validate the decipherability of the barcode. It then converts it into the ASCII characters and also formats the texts. It is then sent to a computer with which the Barcode Scanner is attached. The barcode scanner sellers in Kolkata can explain these in details also before you decide to take a product from them.
The bars and the spaces in the barcode need to be illuminated and the illumination system exactly performs this activity. The types of illumination systems are as follows:
For Barcode wand or Barcode slot reader, this technology is exclusively used. Either a single LED or a pair of LEDs is used for the illumination purpose or the light is focussed through a small and single ball type of opening. The ball is required to touch the barcode which is needed to be scanned. This is a very inexpensive type of Barcode scanner but is very effective. Though there are many disadvantages of using this type of Barcode Scanner, it is also widely used for small Businesses extensively. The wear and tear of the head of such Barcode scanners is high. You can get the very good single point illumination type of Barcode Scanner from barcode printer sellers in Kolkata.
The modification of single LED type is made here and instead of one LED, here multiple LEDs are used which can light the whole width of the barcode easily. The CCD scanners and the linear images use this system extensively. The range of such Barcode scanners is restricted as the limited power in LEDs and limited sensitivity of the photocells. Again, the Magnetic Detacher in Kolkata have a lot of proficiency in selling and supplying excellent qualities of such Barcode Scanners.
Like a laser pointer, a single point type laser diode is used in this method of the illumination system. This type of illumination system is extremely popular these days as the working distance is sufficiently achieved in this system. The RF Hard tag sellers in Kolkata can help you get excellent qualities of Laser type of Barcode scanners for your Business.
You Can Also Read – Finding The Best As Well As Affordable Barcode Scanner Sellers In Kolkata
How does a Barcode scanner work?
The Barcode Scanner sellers in Kolkata provide various types of Barcode Scanners. In order to select the right type of Barcode Scanner, it is necessary to understand about this system to make a qualified decision. The Barcode Scanner normally comprises of three parts. These are the Illumination system, the scanner and converter and the decoder. The work is started by illuminating the Barcode with suitable red light. The reflected light from the illumination system is sensed by the sensor. Further, an analogue signal is generated having varying voltage. The voltage represents the intensity of the reflection. The analogue signal is further converted to digital signal by the converter and this digital signal is fed to the decoder system. The digital signal is interpreted by the decoder. The decoder is responsible to confirm and further validate the decipherability of the barcode. It then converts it into the ASCII characters and also formats the texts. It is then sent to a computer with which the Barcode Scanner is attached. The barcode scanner sellers in Kolkata can explain these in details also before you decide to take a product from them.
A brief description of the illumination system:
The bars and the spaces in the barcode need to be illuminated and the illumination system exactly performs this activity. The types of illumination systems are as follows:
The single point illumination LED:
For Barcode wand or Barcode slot reader, this technology is exclusively used. Either a single LED or a pair of LEDs is used for the illumination purpose or the light is focussed through a small and single ball type of opening. The ball is required to touch the barcode which is needed to be scanned. This is a very inexpensive type of Barcode scanner but is very effective. Though there are many disadvantages of using this type of Barcode Scanner, it is also widely used for small Businesses extensively. The wear and tear of the head of such Barcode scanners is high. You can get the very good single point illumination type of Barcode Scanner from barcode printer sellers in Kolkata.
The multiple linear LED:
The modification of single LED type is made here and instead of one LED, here multiple LEDs are used which can light the whole width of the barcode easily. The CCD scanners and the linear images use this system extensively. The range of such Barcode scanners is restricted as the limited power in LEDs and limited sensitivity of the photocells. Again, the Magnetic Detacher in Kolkata have a lot of proficiency in selling and supplying excellent qualities of such Barcode Scanners.
The Laser illumination:
Like a laser pointer, a single point type laser diode is used in this method of the illumination system. This type of illumination system is extremely popular these days as the working distance is sufficiently achieved in this system. The RF Hard tag sellers in Kolkata can help you get excellent qualities of Laser type of Barcode scanners for your Business.
You Can Also Read – Finding The Best As Well As Affordable Barcode Scanner Sellers In Kolkata
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