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May 17, 2016
Darryl Peterson demonstrates how to check the calibration of the P3 portable strain indicator, using a 1550B strain indicator calibrator.
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May 10, 2016
Dave England interprets the stress patterns produced by a Stress Opticon. The device enables visualization of stress concentration (strains) and helps to explain the concept to novices....
May 5, 2016
Glue is glue…..right? So, why can’t I use regular glue products available at the local retail store to bond strain gages? Well, actually, you can. The more pertinent question...
May 3, 2016
So you’ve been tasked with measuring the strain on the inside of a pressurized tank. A couple of concerns come to mind right away.
First it is very important to determine how the tank will...
May 3, 2016
Long lead wires within the active arm of a Wheatstone Bridge circuit can cause significant error in one’s measurements, including attenuation of low-level signals and unwanted thermal output....
April 26, 2016
The inner diameter of pipes is a critical location for design and performance assessment. Corrosion, fatigue, and stress corrosion cracking often attack the pipe’s inner diameter, which can...
April 14, 2016
Once a strain gage sensor is bonded to the test object, its tempting to test the quality of the bond by trying to peel the gage off the surface. Such a test is misleading, however, as strain gage...
April 12, 2016
Structural Health Monitoring (SHM) is a catch phrase for monitoring of any infrastructure. SHM can be applied to bridges, buildings, dams, tunnels, wind turbines, industrial facilities, and even...
April 7, 2016
All strain gage bonding adhesives have a “recommended” pressure to apply during adhesive curing. This can be as simple as “firm thumb pressure” for cyanoacrylate adhesives (M-...
April 5, 2016
When figure skaters land from a leap, they can experience five to eight times their body weight. However, a fully accurate picture of the impact their leaps put on their ankles and feet has until now...
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