Download or read book Development of High temperature Strain Gages written by J. W. Pitts and published by . This book was released on 1961 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Development of High Temperature Strain Gage Wire written by W. H. Graft and published by . This book was released on 1958 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of electrical strain gages at elevated temperatures (for the purposes of the present discussion, defined as those up to a maximum of 1600 F) involves a number of factors not normally present in conventional room temperature applications. Some of the additional considerations occasioned by the increased temperature of operation may be listed as (1) oxidation resistance of the gage material, (2) thermal coefficient of resistivity and expansion, (3) metallurgical stability, and (4) fabricability. In addition to these, an acceptable gage material should possess intrinsic high resistivity, usable strain sensitivity, compatibility with the mounting medium employed and reasonable resistance to the effects of creep and fatigue.

Download or read book Development of High Temperature Strain Gages written by and published by . This book was released on 1973 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Development of Electrical Strain Gages written by A. V. De Forest and published by . This book was released on 1940 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: Further work to be carried out on the strain gage, together with instrumentation problems, is discussed.

Download or read book High Temperature Strain Gage Research written by Francis G. Tatnall and published by . This book was released on 1955 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development of Resistance Strain Gages Usable Up to 1600 F written by G. STEVENS and published by . This book was released on 1962 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: To measure stresses produced in aircraft structures by aerodynamic heating, a quasi-static high temperature strain gage is required which exhibits good stability characteristics. In the present application it was desired to measure large strains in the temperature range 1000 to 1600 F. Refractory single phase alloys with Fe, Co, and Ni bases were selected for exploration as strain gage wires. Besides good oxidation resistance it was aimed to achieve a low temperature coefficient of resistance and matching expansivity with the chosen base material. The solid solution alloys of the Fe-Cr-Al composition approached most closely the ideal requirements for high temperature strain gage wires. Several alloys in this group were vacuum melted and the hot and cold forming properties were determined. Fe25 Cr-5 Al, Fe-25 Cr-7.5 Al, and Fe-20 Cr-10 Al alloys ultimately were drawn into 0.001 to 0.002in.-diam wires. Strain gages fabricated from these wires were cemented to Inconel test bars and preliminary gage calibrations were made at elevated temperatures. (Author).

Download or read book High Temperature Strain Gage Technology for Hypersonic Aircraft Development Applications written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-08 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental evaluation of Pd 13 percent Cr and of BCL-3 alloy wire strain gages was conducted on IN100 and Cu 0.15 percent Zr alloy substrates. Testing included apparent strain, drift, gage factor, and creep. Maximum test temperature was 1144 K (1600 F). The PdCr gages incorporated Pt temperature compensation elements. The PdCr gages were found to have good resistance stability below 866 K (1100 F). The BCL 3 gages were found to have good resistance stability above 800 K (981 F), but high drift around 700 K (800 F). Anderson, W. L. and Grant, H. P. Unspecified Center...

Download or read book Syposium on Elevated Temperature Strain Gages written by Naval Air Material Center, Philadelphia. Aeronautical Structures Laboratory and published by ASTM International. This book was released on 1958 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development of High temperature Strain Gages written by J. W. Pitts and published by . This book was released on 1959 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development of High temperature Strain Gages written by U.s. national bureau of standards and published by . This book was released on with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book High Temperature Strain Sensor and Mounting Development written by W. Dan Williams and published by . This book was released on 1996 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes Government Work Package Task 29 (GWP29), whose purpose was to develop advanced strain gage technology in support of the National Aerospace Plane (NASP) Program. The focus was on advanced resistance strain gages with a temperature range from room temperature to 2000 F (1095 C) and on methods for reliably attaching these gages to the various materials anticipated for use in the NASP program. Because the NASP program required first-cycle data, the installed gages were not prestabilized or heat treated on the test coupons before first-cycle data were recorded. NASA Lewis Research Center, the lead center for GWP29, continued its development of the palladium-chromium gage; NASA Langley Research Center investigated a new concept gage using Kanthal A1; and the NASA Dryden Flight Research Center chose the well-known BCL-3 iron-chromium-aluminum gage. Each center then tested all three gages. The parameters investigated were apparent strain, drift strain, and gage factor as a function of temperature, plus gage size and survival rate over the test period. Although a significant effort was made to minimize the differences in test equipment between the three test sites (e.g., the same hardware and software were used for final data processing), the center employed different data acquisition systems and furnace configurations so that some inherent differences may be evident in the final results.

Download or read book DEVELOPMENT OF A HIGH TEMPERATURE STRAIN GAGE written by United States. National Bureau of Standards and published by . This book was released on 1955 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Characteristics and Behavior of Bonded Wire Resistance Strain Gages in Thermal Coefficient of Expansion Measurements written by Martin R. Goodman and published by . This book was released on 1950 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development of High temperature Strain Gages with List of References written by and published by . This book was released on 1961 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book DEVELOPMENT OF A HIGH TEMPERATURE STRAIN GAGE written by United States. National Bureau of Standards and published by . This book was released on 1957 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NBS Monograph written by and published by . This book was released on 1961 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Strain Gage Users Handbook written by R.L. Hannah and published by Springer Science & Business Media. This book was released on 1992-06-30 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.