Several important parameters of barcode scanner

 1. The resolution of the barcode scanner

The resolution of the barcode scanner is an important parameter to measure the width of the narrowest bar character that is correctly detected and read. The full English name is: MINIMAL BAR WIDTH, abbreviated as MBW;
When choosing a barcode scanner, it’s not that the higher the splitting rate of the device, the better, but the barcode scanner with the corresponding resolution should be selected according to the barcode density used in the specific application, because the barcode scanner with high resolution has a good effect on the scanned barcode. The quality also has higher requirements, such as when the bar code quality is not high, it may not have a good effect.
2. Scanning width of barcode scanner
The scan width index refers to the physical length of the barcode information that can be read by the scanning beam at a given scanning distance.
3. Scanning speed of barcode scanner
The scanning speed refers to the scanning frequency of the scanning beam on the scanning track per unit time.
4. the one-time recognition rate of the barcode scanner
The one-time recognition rate represents the ratio of the number of tags read in the first scan to the total number of scanned tags. For example, if the information of a bar code label needs to be scanned twice, the recognition rate is 50%. From the perspective of practical applications, it is of course hoped that every scan can pass, but unfortunately, due to the influence of many factors, it is impossible to require a recognition rate of 100% at a time.
Note: The one-time recognition rate test indicator is only applicable to the handheld light pen scanning recognition method. If the laser scanning method is adopted, the scanning frequency of the light beam on the barcode label is as high as hundreds of times per second, and the signal obtained by scanning is repeated. 
5. the bit error rate of the barcode scanner
The bit error rate is an extremely important test indicator that reflects the misrecognition of the barcode scanner that can identify the label system. The bit error rate is equal to the ratio of the number of incorrect identifications to the total number of identifications. For a bar code system, the bit error rate is a more serious problem than the one-time recognition rate.