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Technology and Practical Use of Strain Gages
This book is a profound compendium on strain gages and their application in materials science and all fields of engineering. It covers both the theoretical and practical aspects of strength and stress analysis using the technique of strain gages. A brief historical review about strain gage inventions is looking at the "who, when and how". The comprehensive bibliography leads to additional background information. Particular consideration is given to the stress analysis in order to verify the mechanical properties and capacity of components with focus on stability and serviceability, optimization, and safety checks, as well as in order to foresee inspection and monitoring. The practice-oriente...
Strain Gage Users' Handbook
This highly detailed handbook is a resource for those entering the field of stress analysis and instrumentation. The authors were brought together to provide their expert experience and have presented many practical solutions.
Strain Gauges
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Strain Gauge Technology
This new edition of an important book in the field of strain gauge technology comprehensively covers all important aspects of and current practice in resistance strain gauge selection, installation, protection, instrumentation and performance.
Development of High-temperature Strain Gages
A summary is presented of a research program aimed at the improvement of high-temperature strain gages of the electrical resistance type. Potential ceramic and metal components were evaluated and a gage was devised that was based on these evaluations. This gage (NBS 5B) was flexible and easy to install; however, it lacked resistance stability at higher temperatures. In an attempt to minimize this deficiency, ceramic cements were developed that showed greater electrical resistivity than had been previously observed in the range 800 to 1800 degrees Fahrenheit; also, a technique was devised for increasing the resistance to ground by applying a fired-on ceramic coating to the grid of a specifically developed unbacked gage. A study was made of the cause of the erratic response of cemented gages that had not been preheated prior to use. There were strong indications that the erratic response was caused mostly by the rapid decrease in resistance that accompanied structural changes in the cement.
Characteristics of Extrinsic Fabry-Perot Interferometric (EFPI) Fiber-Optic Strain Gages
For years, resistance based strain sensors have been used for the measurement of strain. The resistance-type strain gage provides a very reliable and accurate measurement of strain, but as with any instrument it has its limitations. Extrinsic Fabry-Perot Interferometric (EFPI) fiber-optic strain sensors are now commercially available from several manufacturers. Fiber-optic strain gages have stated advantages over resistance based strain gages, including immunity to electromagnetic interference (EMI) and leakage to ground. This paper presents a limited performance comparison between the (Fabry-Perot type) fiber-optic strain gage and the traditional resistance strain gage. The evaluation was limited to load testing at room temperature and apparent strain characterization cryogenically and at elevated temperatures.
