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Wednesday, May 6, 2020 | History

3 edition of High temperature static strain gage development contract found in the catalog.

High temperature static strain gage development contract

High temperature static strain gage development contract

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  • 20 Currently reading

Published by United Technologies Research Center, For sale by the National Technical Information Service in East Hartford, Conn, [Springfield, Va .
Written in English

    Subjects:
  • Strain gages.,
  • High temperatures.

  • Edition Notes

    Statementreported by Charles O. Hulse.
    SeriesNASA-CR -- 180811., NASA contractor report -- NASA CR-180811.
    ContributionsUnited States. National Aeronautics and Space Administration.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL15280536M

    This guide covers the selection and application of strain gages for the measurement of static strain up to and including the temperature range from to °C ( to °F). This guide reflects some current state-of-the-art techniques in high temperature strain measurement, and will be expanded and updated as new technology develops. Strain Sensor Reference Guide The strain gage readings are stable from power-up and with no load normally used in static measurements due to very high thermal-output characteristics. Dynamic: –° to +°F (–° to +°C) ±2% Nonlinear at strain levelsFile Size: KB.

      Temperature adversely impacts strain measurements in many ways, though three are of primary concern: • The device or object studied will almost always have a non-zero coefficient of thermal expansion. Unless compensated for, changes in temperature will cause the item to which the strain gauge is attached to expand or contract, which is then indicated. Tatnall, F G. HIGH TEMPERATURE STRAIN GAGE y States. doi/

    HPI high temperature weldable strain gages are ceramic bonded to a high nickel shim for easy installation. Factory tested for % success. With over 65 years’ experience, HPI is a major supplier of hostile environment sensor and strain gage services. HPI wire round strain gages have a high fatigue life and can withstand temperatures of more than ⁰F (⁰C). Custom options available. With over 65 years’ experience, HPI is a major supplier of hostile environment sensor and strain gage services.


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High temperature static strain gage development contract Download PDF EPUB FB2

The surface dimen- sions of the gage are limited to 3 mm x 3mm. airfoil must be less than mm for a foil gage and mm for a wire gage. The desired maximum strain capability is 2 2, Ustrain .2 percent strain) at K and f 3, ustrain at K with an inaccuracy of no more than *.

@article{osti_, title = {High temperature static strain gage development contract, tasks 1 and 2. Interim report}, author = {Hulse, C.O. and Bailey, R.S. and Grant, H.P. and Przybyszewski, J.S.}, abstractNote = {Results are presented for the first two tasks to develop resistive strain gage systems for use up to K on blades and vanes in gas turbine engines under tests.

Get this from a library. High temperature static strain gage development contract. [Charles O Hulse; United States. National Aeronautics and Space Administration.]. High temperature static strain gage development contract, tasks 1 and 2 - NASA/ADS Results are presented for the first two tasks to develop resistive strain gage systems for use up to K on blades and vanes in gas turbine engines under tests.

High temperature static strain gage development contract, tasks 1 and 2: Authors: (Turbomachinery), Strain Gages, Temperature Effects, Vanes, Gas Turbine Engines, Metallography, Solubility: Bibliographic Code: The objective of these two tasks was to further improve and evaluate two static strain gage alloys identified as candidates in a.

The specific program goals were to develop a static strain gage system capable of at least 50 hours of operation at temperatures up to K on a vane or rotating gas turbine blade. The surface dimensions of the gage were limited to 2. 3 mmx 3 ram. COVID Resources. Reliable information about the coronavirus (COVID) is available from the World Health Organization (current situation, international travel).Numerous and frequently-updated resource results are available from this ’s WebJunction has pulled together information and resources to assist library staff as they consider how to handle coronavirus.

The capabilities of resistance and capacitance strain gages for use in the temperature range of –°F for durations up to 10, h are reviewed. Characteristics are given in summary and tabular form along with a list of references. Resistance strain gages offer some capability under these conditions, but the newer capacitance gages show promise for both laboratory and field use at Cited by: of the contract as the design goals for the high temperature capacitance strain gage.

A general consideration given to all the items listed below was that the design of a high temperature capacitance gage would be compatible with remote operation on a major structural air frame which is completely surrounded by radiant heat Size: 7MB. M series strain gauges are foil strain gauges for stress analysis of materials with high fatigue strength such as fiber composites.

They can also be used in product development, for example in the aerospace or sporting goods industries. In addition, M series strain gauges offer a very large temperature range. The static and dynamic strain responses are investigated from room temperature up to °C.

The results of static testing demonstrate that the resistance of the gauge exhibits a linear change dependent on strain and displays excellent : Hao Liu, Xiling Mao, Zhengbing Yang, Jinting Cui, Shuwen Jiang, Wanli Zhang.

A flame-sprayed Pd13Cr-based gage is demonstrated to be a viable sensor candidate for static strain measurement in the temperature range from room temperature to °C ( °F). The flame spray technique used for in-stallation of this strain gage is described, and the characteristics of the gage are by: 2.

gage factor of this alloy determined at room temperatures using commercial strain gages was These properties may be different when evaluated for thin sputtered films which are in intimate contact on both sides with oxides. Although it is more sensitive to temperature than the FeCrAI Mod 3 alloy, the response of the PdCr alloy to temperature, as shown in figure 4, is linear which indicates that no.

High Temperature Static Strain Sensor Development Program NASl69 United Technologies Research Center Charles Hulse, Frank Lemkey, Richard Bailey, Howard Grant The purpose of this program is to develop resistance strain gages useful for static strain measurements on nickel or cobalt superalloy parts inside a gas tur­ bine engine on a test.

The classic, definitive work on strain gauge measurement. The strain gauge has become an essential tool in stress analysis, part optimization, safety testing and technical investigative work. It is also a major component used in the manufacturing of measurement transducers.

High-Temperature Strain Gage for Static and Dynamic Tests. Printer-friendly version. Award Information. (Contract End Date): Small Business Information. and commercial gas turbine engine community to identify and develop transition targets and business plan for the high temperature strain gage and dynamic/static interrogator.

An electrical resistance strain gage that can supply accurate static strain measurement for NASP application is being developed both in thin film and fine wire forms. This gage is designed to compensate for temperature effects on substrate materials with a wide range of thermal expansion coefficients.

Some experimental results of the wire gage tested on one of the NASP structure materials, i.e Author: Jih-Fen Lei. Development of High-Temperature Strain Gages J.

Pitts and D. Moore 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 by: Abstract.

High-temperature long-term static strain measurements have, for many years, been a problem to the experimental stress analyst. Strain gages operating in environments from –° F over extended periods of time have varying characteristics as to temperature compensation, gage-factor shifts and, also, by: 5.

The objective of this work is to establlsh a technology base for use of high-temperature wire-form static strain gages on materials applicable to hypersonic aircraft development at temperatures above K (°F).

A goal in the field of aeronautical research is the development of hypersonic. The development of capacitance strain transducers for high temperature static strain measurement is discussed. The C4/C5 transducers average microstrains per year at C, and have exhibited good stability even when immersed in liquid helium.

Applications, including long term creep testing on turbine housings and radiator stress analysis, are discussed. The temperature range of foil strain gauges is limited by the materials that are used.

The maximum range is about °C to °C. If measurements have to be conducted at higher temperatures, high-temperature strain gauges that work according to different principles must be used.

Temperature limits of HBM strain gauges are: Y series: °CAdhesive creep: Observe the temperature limits of the adhesive you are using.High-Temperature Thin-Film Strain Gauges Benefits • Minimally intrusive. A complete sensor unit is only 20 µm thick compared to µm of the conventional foil or wire strain gauge system.

• Very high temperature operation. Sensors extend the maximum use temperature from the current capability of °C up to ° Size: KB.