1 / 6

Testing & Quality Assurance for Cable Assemblies EMI, Continuity, and Pull Tests

A cable assembly in a modern, sophisticated electronics-filled world is not a simple collection of wires. It is a very important connection among components, subsystems, and systems, either in a medical device or aerospace application, semiconductor tool, or a clean-room environment.<br><br>Visit Our Website : https://www.maccal.com/

Rosemarie15
Télécharger la présentation

Testing & Quality Assurance for Cable Assemblies EMI, Continuity, and Pull Tests

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Testing & Quality Assurance for Cable Assemblies: EMI, Continuity, and Pull Tests A cable assembly in a modern, sophisticated electronics-filled world is not a simple collection of wires. It is a very important connection among components, subsystems, and systems, either in a medical device or aerospace application, semiconductor tool, or a clean-room environment. In case of the cable assembly failure of a cable assembly, the downstream implications might be expensive: reworking, downtime, warranty, or even safety. This is why three major categories of tests, such as continuity, EMI/EMC testing, and pull/mechanical strength testing, could be mentioned as the significant ones in any serious quality-assurance program of custom cable assembly.

  2. Now we will explore each of them, their relevance, and their implementation in a manufacturing environment. 1. Continuity Testing: Making sure the connection is solid • A continuity test is done to ensure that every conductor in a cable assembly is connected validly at the ends (or at one specified point to another) and that no unwanted open circuit or mis-wire exists. • A cable assembly can appear fine on the outside, but when the inside wire is broken, or the connector pin is open, or the mis-pin assignment occurs, the cable assembly will not do its job. • How it’s done • Usually, a multimeter or continuity tester between specific pins or endpoints is checked to be of a closed circuit (or resistive). • In the case of multiconductor cable assemblies, automated test fixtures can be used such that multiple conductors can be tested at once.

  3. 2. EMI / EMC Testing: Ensuring signal integrity • EMI (Electromagnetic Interference) and EMC (Electromagnetic Compatibility) tests ensure that a cable assembly does not create undesired electromagnetic emissions or collect interference of the surrounding environment (or other equipment) in a manner that impacts performance. • The outcome: failed equipment, data corruption, regulatory failures (e.g., violation of EMI emissions standards), and, in the long term, reliability problems. • At Mac Cal, the Bay Area cable assembly and harness outsmarts critical thresholds that can alter the signal transmission. • How it’s done • Shielding effectiveness is tested: e.g., shielding braid or foil should be bonded correctly, and terminations should not be open. • The cable assembly could be put into an EMI test chamber to test the emissions or the susceptibility.

  4. 3. Pull Testing: Verifying mechanical robustness • Pull-testing (sometimes known as tensile or connector-pull test) is a test of the mechanical strength of the cable assembly-typically how well the connectors are attached, whether crimps will support the assembly, and how the assembly will withstand tensile force. • How it’s done • A pull test fixture subjects the assembly (typically separating at the connector-to-cable interface) to a known tensile load (force), and measures the force needed to separate or break apart. • There are several types: • Pull and break: continue applying more and more force until it breaks. • Pull and hold: impose a specified load, hold a certain time, and observe whether any slippage or failure occurs. • Pull and release: apply load, release, and investigate whether any permanent deformation or looseness.

  5. Conclusion Cable assembly testing and quality assurance are not an option, but a necessity. The comparatively small investment in considerate testing wins in reliability, customer satisfaction, as well as cost savings that are incurred over the long run. With our Austin vertically integrated manufacturing at Mac Cal, there comes tightly-knit vertical features of engineering that are complemented by stringent QA. You can rely upon our supplies as they are well-adhered to continuity, electromagnetic performance, and mechanical integrity tests.

  6. US CONTACT For more detailed information, please contact us below: Telephone: 408-441-1435 Web https://www.maccal.com/ Email documents@maccal.com

More Related