How to tell the scanning accuracy of handheld barcode scanners

1. Minimum barcode width

Minimum barcode width, which is the minimum barcode spacing that the scanner can accurately read. When purchasing a handheld scanner, this is the "recognition accuracy" parameter in the product specification sheet. Common values are 3mil, 4mil, and 5mil. Mil is an imperial unit, 1 mil is equal to 0.001 inch, which is approximately equal to 0.0254mm.

The higher the recognition accuracy of the scanner, the smaller the barcode it can recognize. For example, the recognition accuracy of 3mil can recognize barcodes with a width of 0.0762mm, while the recognition accuracy of 5mil can only recognize barcodes with a width of 0.1270mm.

In practical applications, such as scannings on electronic components and one-dimensional barcodes on medical devices, a 3-mil high-precision handheld barcode scanner, such as Hanyin HN-6208SR, is required for scanning.

2. Reading distance

The reading distance is the maximum distance between the scanner and the barcode within which the barcode can be successfully decoded. This distance is usually affected by the scanner's optical system and the intensity of the light source. Different scanners may have different optimal reading distances, which is one of the factors to consider when choosing a scanner.

For example, in a large warehouse, workers may need to scan barcodes above shelves from a greater distance. In this case, a barcode scanner with a longer read range would be more practical, as it would allow workers to scan high-altitude barcodes directly from the ground without the need for ladders or other tools.

3. Decoding speed

Decoding speed refers to the number of barcodes or frames that the scanner can decode in one second. This performance indicator is affected by many factors such as the optical system of the scanner, software algorithm, and barcode quality. Among them, the optical system and algorithm are the core elements that determine the decoding speed.

● Barcode quality: The higher the clarity and contrast of the barcode, the faster it will be decoded.

● Barcode complexity: Compared with complex two-dimensional barcodes, simple one-dimensional barcodes can be decoded more quickly.

● Optical system of the scanner gun: The high-performance optical system can capture barcode images more accurately, thereby increasing the decoding speed.

● Scanner's processor and algorithm: Scanners equipped with efficient processors and optimized decoding algorithms have higher decoding speeds.

● Ambient light: In environments with good lighting conditions, decoding speeds tend to be faster.

● Size and density of barcodes: Small and dense barcodes may take more time to decode.

4. Fault tolerance rate

The error tolerance rate of a handheld barcode scanner refers to the scanner's ability to correctly identify barcode information even when the barcode is blurred, stained, damaged, etc. The higher the error tolerance, the stronger the scanner's ability to identify barcode information in harsh environments. This is related to the print quality of the barcode, the light source of the scanner, and other external factors such as light conditions.

In scenarios such as warehouse management, logistics and transportation, and manufacturing, barcodes are often affected by various external factors such as dirt, bumps, or oil. At this time, a scanner with high fault tolerance is particularly important. They accurately identify blurred, defaced or damaged barcodes, ensuring data accuracy and smooth operations.

In order to further improve the success rate of scanning, the following are some practical operational suggestions: check the quality of the barcode before scanning to ensure that it is clear and complete; maintain an appropriate scanning distance, usually 5-10 cm; and ensure that the scanner gun is in contact with the barcode Be vertical and avoid diagonal sweeps. In addition, sufficient light is also key to ensuring scanning results.

When purchasing a handheld barcode scanner, in addition to considering its basic functions, it is more important to have an in-depth understanding of its scanning accuracy. Understanding core indicators such as minimum barcode width, decoding speed, and error tolerance will help you choose a scanning device that better meets your business needs. Hanyin provides you with barcode scanners with comprehensive functions and high-end configurations, which feature high precision, sensitivity and excellent durability. They not only meet various business needs, but also significantly improve the company's operational efficiency and data accuracy. If you plan to bulk purchase or customize system-compatible scanning equipment for your enterprise, please feel free to contact us. Hanyin promises to provide you with professional one-dimensional barcode and two-dimensional code scanning solutions.