HARD-TO-HURT ™ STRAIN RELIEF
Designing the Hard-To-Hurt™ Strain Relief
Since no industry standard test exists, Teledyne Storm Microwave developed an accelerated life test to evaluate strain relief designs.
The 1st part of the test incorporated a cable flexing device. This flexer is capable of testing up to 6 cables simultaneously.
In use, the connectors are held static and the flexer deflects the cable behind the connectors 30° to the right and 30° to the left.
An integrated counter monitors the number of cycles (± 30° per cycle) that the cables have been flexed.
30° to the Right
During flexing, the cables are connected to a Network Analyzer and monitored for Insertion Loss and VSWR so the technician knows when the cable is starting to develop instability.
Periodically, the movement is stopped and each cable’s performance is measured and recorded.
The flexing is continued until the cable being tested fails to meet the Insertion Loss or VSWR requirements.
30° to the Left
To establish an initial design baseline, Teledyne Storm Microwave evaluated cable assemblies with standard strain reliefs.
Teledyne Storm Microwave Accelerated Life Testing
With that information in hand, alternate strain relief designs and materials were evaluated until the winning Hard-To-Hurt™ design was selected.
Tel 630.754.3300 Fax 630.754.3500 Toll Free 888.347.8676 storm_microwave @ teledyne.com Approved for Public Release 16-006
10221 Werch Drive Woodridge, Illinois 60517
09/14
www.teledynestorm.com
AS9100/ISO 9001 REGISTERED
21
E-BOOK
Made with FlippingBook Online newsletter maker