Results 251 to 260 of about 901,570 (291)
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Correction of Gauge Factor for Strain Gauges Used in Polymer Composite Testing
Experimental Mechanics, 2013Strain gauges are used together with the corresponding gauge factor to relate the relative electrical resistance change of the strain gauge with the strain of the underlying material. The gauge factor is found from a calibration on a stiff material - steel.
S. Zike, L P Mikkelsen
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Behaviour of electrical resistance strain gauges at low temperatures II. Gauge factor
Cryogenics, 1967The authors continue their report of an investigation of the characteristics of strain gauges in the range 0—300° K from the previous paper with a study of ‘gauge factor’ G. Some results are given and the physical origin G is discussed.
R.D. Greenough, E.W. Lee
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Graphene has ultra high piezoresistive gauge factor
2012 IEEE 25th International Conference on Micro Electro Mechanical Systems (MEMS), 2012We report the first-ever use of graphene as a piezoresistive element in a MEMS device, and report on a giant piezoresistivity in the graphene films used on our devices. Owing to the layer nature and the effective confinement of electrons in two-dimensions, applied strain in the graphene films is likely to create large changes in conductivity as the ...
H. Hosseinzadegan +5 more
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Gas Correction Factors for Vacuum Pressure Gauges
Vakuum in Forschung und Praxis, 2017AbstractVacuum pressure gauges will typically arrive from a manufacturer calibrated for nitrogen; for other gases, to avoid potentially significant measurement errors, a correction factor must be used to convert ‘measured’ or ‘indicated’ pressure to ‘true’ pressure.
Rebecca Grinham, Andrew Chew
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WEYL'S GAUGE TRANSFORM AND QUANTUM GEOMETRIC PHASE FACTORS
Modern Physics Letters A, 2007The historical and geometrical origin of Gauge Transformation and Yang's phase loop of gauge theory are discussed. In the present talk, we present the following points: 1. Parallel transport of a vector; 2. Weyl 1918 gauge transformation 3. Concept of non-integrable phase factor; 4. Berry's quantum geometrical phase; 5.
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A method for gauge factor determination
Journal of Scientific Instruments, 1961A simple device for the determination of gauge factor of electrical resistance strain gauges is described.
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Method for rapid determination of ion gauge sensitivity factors
Review of Scientific Instruments, 2007In ultrahigh vacuum thin film growth processes using gas phase growth precursors, the pressure of the gas at or near the substrate is a critical parameter since it is directly related to the collision frequency of the precursor with the substrate and ultimately to the growth rate.
C Y, Peng +2 more
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Chern-Simons induced spin factors in noncovariant gauges
Physical Review D, 1993We study Chern-Simons induced spin factors in noncovariant metric-independent gauges, such as the axial gauge and the Coulomb gauge. These spin factors are defined without loop splitting. We find that they are equal to integers and have particular geometrical meanings.
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Sensors and Actuators A: Physical, 2018
Abstract In this work, we present a method for the realization of printed strain gauges on pre-coated sheet steel substrates. The state of the art is to glue strain gauges on foil onto a substrate. This, however, has inherent disadvantages in terms of force coupling between the bent substrate and the glued strain gauge sensors. The fact that the glue
Herbert Enser +6 more
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Abstract In this work, we present a method for the realization of printed strain gauges on pre-coated sheet steel substrates. The state of the art is to glue strain gauges on foil onto a substrate. This, however, has inherent disadvantages in terms of force coupling between the bent substrate and the glued strain gauge sensors. The fact that the glue
Herbert Enser +6 more
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Gauge factor measurements for fluorocarbon polymer-gold films
Vacuum, 1985Abstract Thin polymer-metal films were prepared by simultaneous plasma polymerization of tetrafluoromethane (CF 4 ) in an rf glow discharge and evaporation of gold. By controlling the deposition parameters various amounts of gold could be incorporated in the polymer matrix giving a wide range of sheet resistances.
RE Thurstans +4 more
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