Laser Marking Machines for Bar Codes|Testing the Accuracy of Laser-Imprinted Barcodes and the Recognition Rate of Scanning Guns

How can you ensure that the barcodes marked by a laser can be quickly and accurately read by a scanner? This article analyzes the effects of different materials and parameter settings on barcode quality, and provides a testing method to help users optimize their marking processes and improve the efficiency of barcode scanning on the production line.

Laser marking technology is widely used in industry for barcodes because of its permanence and precision, but in actual production there is often the problem that a scanner cannot read a code or misreads it.This article presents the results of three sets of experiments, comparing the effects of laser power (20W / 30W / 50W) on three different materials (metal, plastic, and glass).The data show that a 30W laser can produce a barcode on plastic with a recognition rate of 98 %, while on metal the focal length must be adjusted to 0.2 mm in order to achieve the same effect.

In looking at the most common cases of scanning failure, we discovered that the main causes are bar code edges having a rough, uneven surface and insufficient contrast.By increasing the laser frequency to 80 kHz, the sharpness of the lines can be significantly improved, while using grayscale preprocessing technology can increase the contrast between the black and white areas of a QR code from 60 % to 85 %.The tests also verified the differences in compatibility between the mainstream barcode scanners on the market. In terms of response time in reading DPM (direct part marking) barcodes, some industrial scanners were 2.3 seconds faster than ordinary ones.

The article ends by providing five practical optimization solutions, including techniques for eliminating the effects of environmental light interference, the importance of the cleaning process after labeling, and how to verify that barcodes meet GS1 standards.The test templates that come with the software can help users quickly determine whether the width of a barcode's modules differs by less than ± 5 % from the standard, which is the key indicator to ensure the success of scanning.

10 Barcode Scanners Compared

We tested 10 popular barcode scanners, comparing handheld and fixed devices in terms of efficiency, flexibility and suitability for different environments.The article covers the pros and cons of hand-held and fixed scanners, and offers advice on how to choose the best model.

Decoding the Standards: How Is the ISO / IEC 15415 Test Performed?

An in-depth look at the ISO / IEC 15415 standard for bar code quality inspection, with a detailed description of the core steps in bar code testing and the common problems encountered.From equipment selection to parameter analysis, it helps companies to master the methods of barcode grading, ensuring that products meet international standards and improving the efficiency and readability of the supply chain.

Barcode Scanning Failures on Production Lines: An Analysis of Causes from Parameter Settings to Equipment Maintenance

Failure of the production line scanner may be caused by improper configuration of parameters, aging of the equipment, or environmental interference.From barcode scanner parameter settings, daily maintenance, and troubleshooting, it provides practical solutions to reduce downtime and improve productivity.

30W vs. 50W Laser Marking Machine: Which Is More Cost Effective?

By testing the marking effects, efficiency and cost of 30W and 50W laser marking machines, we analyze the practical performance of these two machines in different scenarios, to help users select the most cost-effective machine according to their processing requirements.The keywords include laser marking machine power selection, 30W versus 50W, and the cost-benefit ratio of laser marking machines.

Five Ways to Solve the Problem of Insufficient Contrast in Barcodes

Insufficient contrast between the black and white lines in a barcode can cause scanning failures and data reading errors, which directly affect work efficiency.The article shares five methods that have been tested and proven effective, including adjusting the contrast between the bar code and background colors, optimizing the background design, and using professional tools.

A Guide to Improving the Accuracy of Industrial Marking

It provides practical guidelines for increasing the accuracy of barcode printing on metal surfaces in the industrial sector.The training covered a range of topics, including the selection of high-precision marking equipment, surface preparation techniques, and methods for optimizing printing parameters. It helped solve problems such as blurry marks and easy peeling on metal surfaces, ensuring that the barcodes remained readable.

Can't Read the Barcode?

If you're having trouble reading bar codes, don't panic! Here are three simple steps to help you solve the problem.From checking the device's status to adjusting the scanning angle, and on to optimizing the quality of the barcode, the detailed steps will help you easily solve the problem of the scanner not being able to read the barcode, and will improve work efficiency.

Laser Marking Parameters and Code Readability

In response to the difficulties of adjusting the parameters of laser marking machines, the authors tested 20 commonly used materials to determine the best way to adjust the machine to ensure that barcodes can be read.The optimization scheme covers parameters for metal, plastic, and wood, helping users quickly improve the clarity of the markings and the success rate of scans, and solving the problem of setting parameters in production.