In practically all sectors, 2D codes such as data matrix and QR codes are used to transmit information about the components or goods on which they are marked. The URL of the Laserax website is stored in both of the codes mentioned above, for example. If you have a smartphone, you may download an application that will allow you to scan these codes and access our website in your browser. These codes are scanned at every step of the manufacturing and delivery process for components and products to trace them and save vital information in a database.
A Quick Overview of Each 2D Code
A data matrix code is a two-dimensional code made up of black and white cells organized in a square arrangement (although rectangular patterns also exist). The quantity of data recorded in the code, which is restricted to 2,335 alphanumeric characters, increases the number of rows and columns. The finder pattern, which follows the code's boundaries, is utilized by scanners to detect and decode the code. The ISO/IEC 16022 international standard has standardized the usage of data matrix codes. ( data matrix vs qr code )
A QR code (short for rapid response code) is a two-dimensional code made up of black cells in a square grid on a white backdrop. It has a maximum storage capacity of 4,296 alphanumeric characters. The number of rows and columns determines the maximum amount of characters. Its finder design is simple to detect since it has three square structures in each corner. The ISO/IEC 18004 international standard ensures that QR codes are utilized in the same way all over the globe.
Data Matrix vs. QR Codes: What's the Difference?
Both codes may seem to be the same. The distinctions that matter, on the other hand, are invisible to human sight! We've outlined the key distinctions between each form of 2D code to assist you in determining which is best for you.
Which 2D Code Is the Most Appropriate for Your Needs?
When it comes to choosing between data matrix codes and QR codes, we've compiled a list of questions for you to consider. We're convinced that armed with this knowledge, you'll be able to make the greatest decision for your application.
What is the real size of your 2D code that is available?
It's all about the size! Both data matrix codes and QR codes are scalable, however, data matrix codes are more often used on tiny components like electrical gadgets since they can encode more characters in the same amount of space. Some markers contain cells as tiny as 300 m2, while others have cells as big as 1 m2. Because QR codes are less compact, they are not often utilized for little goods.
Lasers are in handy when it comes to marking data matrix codes on tiny parts. As an example, have a look at this video.
Is it probable that your code may be corrupted throughout its lifecycle?
Codes must be legible from the beginning to the conclusion of their lifespan to be traceable. For example, if you use abrasive blasting techniques like shot blasting and sandblasting on your components, the readability of your codes is likely to suffer. The error correction level may be employed to account for some code damage, although a shot blast-resistant code is preferable. For more information on shot blast-resistant laser marking, see this page.
Which quality level do you want to achieve?
The overall readability of a code is graded on a scale of A to F. To assess the quality of 2D codes, many worldwide ISO standards exist. When utilizing direct part marking, ISO/IEC TR 29158 (also known as AIM DPM) is used to assess quality based on eight criteria: axial non-uniformity, cell contrast, cell modulation, decodability, fixed pattern damage, grid non-uniformity, minimal reflectance, and unused error correction.
2D code verifiers, such as those made by Cognex, may be used to assess the grade of a code.
Is your industry governed by a body that mandates or encourages the adoption of a certain code?
Depending on where you work, organizations that govern or make advice on how to utilize 2D codes may control your business. Some instances are as follows:
The Electronic Components Industry Association has guidelines for using 2D codes to label goods.
MIL-STD-130, a standard that specifies how to label the department's military characteristics, governs items supplied to the US Department of Defense.
Product identification criteria are provided by the aerospace industry.
Is the code compatible with your language?
2D codes can encode a lot of information, but they have limits. If you wish to employ alphanumeric or binary characters, any sort of coding will do. The only form that accepts Kanji and Kana characters is the QR code, which was initially used by the car sector in Japan. You must be willing to deal with the constraints of a given kind of code if you wish to utilize it.
Laser Marking using a 2D Code
Laserax supplies inline laser marking equipment that may be used to mark 2D codes on your manufactured items. To learn more about how our laser technology may be utilized for 2D code marking, go here. You may also speak with a Laserax professional to learn more about how our laser technologies can be used for your 2D code marking requirements.