The inception of barcode technology to business operations has come with many gains. As such, it makes business operations more efficient, reduces human errors, and makes information access simple and reliable. For a business to use a barcode, it also needs to have a barcode scanner, which is an instrument that helps you read the code.
Fundamentals of barcode scanning technologies
As expected, you might be having an idea of what barcodes are; a series of black and white line with some numbers attached to them. However, most people do not have a concise definition of what a barcode is. Ideally, a barcode is a machine-readable quote that describes some unique features about an individual product. The machine used to interpret this data is known as a barcode scanner.
How a barcode scanner works
A barcode scanner has three main parts. This includes the illumination source, the sensor, and the decoder. The source of light is used to illuminate the barcode (lines and spaces). As such, the black areas absorb the light as the white ones reflect it. As a result, the sensor detects this reflection and generates a signal from the reflected light, which is then interpreted by the decoder.
Once the decoder decodes or interprets the signal from the sensor, it is then compared to the information in the database. This implies that a database is also necessary for comparison reasons. That said, here are some popular barcode technologies used today.
Popular barcode technologies
These scanners are mostly used in small volume applications. They contain a photodiode placed next to a light source. The photodiode measures the light reflected back to it by the barcode, which implies that the barcode should be positioned at a particular angle and moved at a constant speed. These scanners are preferred due to their small size, durability, and inexpensive nature.
Laser barcode scanner
Laser barcode scanners are relatively advanced. They have an oscillating mirror that controls the laser beam across the barcode. The good thing about these scanners is that they are precise and accurate. As such, they are a practical option for long-range scanning and other intense applications.
As the name suggests, these scanners can read barcodes from any direction. They normally use laser beams as their primary light source. They are also perfect for long-distance scanning.