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 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 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 DEVELOPMENT OF A HIGH TEMPERATURE STRAIN GAGE written by United States. National Bureau of Standards and published by . This book was released on 1956 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of a High temperature Strain Gage written by and published by . This book was released on 1956 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of a High temperature Strain Gage written by and published by . This book was released on 1956 with total page 7 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 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 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 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 and Application of High Temperature Strain Gages for Stress Measurements in Jet Engines written by B. R. Anderson and published by . This book was released on 1958 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper covers recent advancements in the development and application of high-temperature strain gages for stress measurements in jet engines. Development of high-temperature strain gages can be divided into three areas: (1) alloys, (2) cements, and (3) fabrication and application techniques. In the Aircraft Gas Turbine Division, the measurement of vibratory stress and static stress are both of primary importance. For vibratory stress measurement, a high-temperature strain gage has been developed which will operate at temperatures up to 1500 F continuously and up to 1800 F for short periods of time. For static stress measurement, a self-temperature -- compensating, high -- temperature strain gage has been developed for application on specific alloys up to 850 F. Developments to increase the temperature range of both of these gages are under way.
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 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report of Meeting to Review Status of High temperature Strain Gage Development written by Francis Tatnall and published by . This book was released on 1954 with total page 8 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 1961 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 High Temperature Static Strain Gage Development written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-18 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Final results are presented from a program to develop a thin film static strain gage for use on the blades and vanes of running, test stand gas turbine engines with goals of an 3 x 3 mm gage area and total errors of less than 10 pct. of + or - 2,000 microstrain after 50 hrs at 1250 K. Pd containing 13 Wt. pct. Cr was previously identified as a new strain sensor alloy that appeared to be potentially usable to 1250 K. Subsequently, it was discovered, in contrast with its behavior in bulk, that Pd-13Cr suffered from oxidation attack when prepared as a 4.5 micron thick thin film. Continuing problems with electrical leakage to the substrate and the inability of sputtered alumina overcoats to prevent oxidation led to the discovery that sputtered alumina contains appreciable amounts of entrapped argon. After the argon has been exsolved by heating to elevated temperatures, the alumina films undergo a linear shrinkage of about 2 pct. resulting in formation of cracks. These problems can be largely overcome by sputtering the alumina with the substrate heated to 870 K. With 2 micron thick hot sputtered alumina insulation and overcoat films, total 50 hr drifts of about 100 microstrain (2 tests) and about 500 microstrain (1 test) were observed at 1000 and 1100 K, respectively. Results of tests on complete strain gage systems on constant moment bend bars with Pd temperature compensation grids revealed that oxidation of the Pd grid was a major problem even when the grid was overcoated with a hot or cold sputtered alumina overcoat. Hulse, C. O. and Bailey, R. S. and Grant, H. P. and Anderson, W. L. and Przybyszewski, J. S. Unspecified Center GAS TURBINE ENGINES; HIGH TEMPERATURE; SPUTTERING; STRAIN GAGES; THIN FILMS; VANES; ALUMINUM OXIDES; ARGON; CRACKS; LEAKAGE; OXIDATION; SHRINKAGE; SUBSTRATES; TEST STANDS; THICK FILMS...
Download or read book The Evaluation of High Temperature Strain Gauges 2 Type EA 09 125BB 120 Manufactured By Micro Measurements written by L. F. McCalvey and published by . This book was released on 1973 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
