Articles

March 22, 2019
Sit back, relax, and enjoy a smooth, safe ride through the Analog-Digital world. Occasionally, I hear the following question and complaint , “Why should I continue using foil strain gage...
March 18, 2019
Because a strain gage performs no better than the adhesive with which it is bonded to the test specimen, the adhesive is a vitally important component in every strain sensor installation. Although...
March 8, 2019
The title of this note may appear tautologous to the casual reader, but the reference here is to more than the obvious difference between mechanical and electrical phenomena. (Attention: Civil,...
March 1, 2019
Becoming a detective in stress analysis requires both experience, training and studying two major fields: Failure avoidance, which is also known as condition based maintenance (CBM) and failure...
February 27, 2019
The technical literature on strain measurement can make the subject appear complex and confusing. Indeed, measurements sometimes are complex and confusing. But more often than not they are neither....
February 14, 2019
One of the latest examples of high tech applications for strain gages comes from our good friends at Sensing Systems Corporation.  Richardo Bermudez, the President of Sensing Systems, has a...
February 3, 2019
Micro-Measurements Certified M-Bond 200 is an excellent general-purpose laboratory adhesive because of its fast room-temperature cure and ease of application. When properly handled and used with the...
January 18, 2019
The purpose of surface preparation is to develop a chemically clean surface having a roughness appropriate to the gage installation requirements, a surface alkalinity corresponding to a pH of 7 or...
January 18, 2019
Concrete surfaces are usually uneven, rough, and porous. In order to develop a proper substrate for gage bonding, it is necessary to apply a leveling and sealing precoat of epoxy adhesive to the...
November 27, 2018
As an aviator, I’ve always found interest in aerospace applications of strain gages.  Strain gage use in testing aircraft goes way back to the 1940’s when experimental stress...