When testing composite specimens, effective strain measurement often requires the direct bonding of strain gauges to the specimen. It is generally not possible to connect individual strain gauges directly to materials testing systems since the electronics are typically designed for a "full Wheatstone bridge" whereas a single strain gauge is only a "quarter bridge".
Typically, one would need external signal conditioning and bridge completion electronics such as Vishay or HBM, which bypasses the signal conditioning in the strain channel. We recommend a simpler, less costly approach: a “bridge completion” adapter and cable that connects directly to the signal conditioning in the strain channel, making the strain gauge look like an extensometer; you will no longer need the external conditioning electronics. Calibration in materials testing software is as simple as when using a clip-on extensometer.
2 comments:
Of course this is a commercial writing, but in anyway it should contain more information about its application on a specific strain measurement. It is better if any user gives one measurement sample by using this device
Thanks for the question. Your question can be interpreted several ways, and not knowing the specific concern you have, I’d appreciate the chance to talk with you. Please feel free to email me at your convenience: EMBlogSupport@instron.com.
In general, this strain gauge cable would help produce a typical stress vs strain curve for the specimen being tested. The cable allows users to capture strain data from bonded strain gauges as opposed to an extensometer.
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