Scientific and Technical Aerospace Reports PDF Download
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Author:
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Category : Aeronautics
Languages : en
Pages : 292
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 292
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Author:
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Category : Weights and measures
Languages : en
Pages : 1216
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Author: J. W. Pitts
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Category : Cement
Languages : en
Pages : 322
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Book Description
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.
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Category : Physics
Languages : en
Pages : 60
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Author: United States. National Bureau of Standards
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Category : Calibration
Languages : en
Pages : 536
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Author: National Physical Laboratory (Great Britain)
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Category :
Languages : en
Pages : 266
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Author: J. F. Swindells
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Category : Temperature measurements
Languages : en
Pages : 534
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Author:
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ISBN:
Category :
Languages : en
Pages : 570
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Author: John W. Wescott
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Category : Air
Languages : en
Pages : 650
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Book Description
This bibliography contains several thousand abstracts from the unclassified literature on the propagation of sound in air. The subject is treated in depth for the years 1929 to 1963. Some abstracts on earlier works of lasting interest and many abstracts from English translations of foreign journals are included. The abstracts are grouped according to subject matter. Subject and author indexes are furnished. Accessions Document (AD and earlier ATI) numbers used by both the Defense Documentation Center (formerly ASTIA) and the Office of Technical Services (OTS) are furnished wherever possible. (Author).
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Category : Military research
Languages : en
Pages : 572
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