Wide-range strain-gauge device for static strain measurement

1971 ◽  
Vol 14 (12) ◽  
pp. 1851-1853
Author(s):  
V. V. Shabarov
Keyword(s):  
Strain Gauge ◽  
Strain Measurement ◽  
Static Strain ◽  
Wide Range

Development of a Quick and Easy-to-Install Strain Measurement Tool for Both Bending and Torsional Piping Stress Assessment

2016 ◽  
Author(s):  
Tsunemichi Takahama ◽  
Kazuma Nishimura ◽  
Seiichiro Ninomiya ◽  
Yoshihiro Matsumoto ◽  
Yutaka Harada
Keyword(s):  
Strain Gauge ◽  
Strain Measurement ◽  
Adhesive Bonding ◽  
Working Time ◽  
Measurement Tool ◽  
Stress Assessment ◽  
The Moment ◽  
Time Required ◽  
Longitudinal Strains

To assess the stresses on small-bore piping, we have developed a new tool that can be easily installed on a piping surface without adhesive bonding and that measures strains on piping quickly and accurately. This tool, which we call a “strain gauge holder,” is patented in Japan. As the tool can contain four strain gauge rosettes, with each rosette comprising three elements, the longitudinal strains and sheer strains can be measured synchronously at any four points precisely 90 degrees apart, with one point in each quadrant. By mockup testing, we confirmed that the measured bending and torsional strains by the holder were almost equivalent to the measured strains by the bonded gauges with adhesive, and that the holder made it possible to synchronously measure all of the strains resulting from the moment of force acting in three axes on the piping by measuring the bending and torsional strains in each quadrant. The strain gauge holder is expected to significantly reduce the pre- and post-working time required for strain measurement and stress assessment of piping in real plants.

Performance of Strain Gauge in Strain Measurement and Brittle Coating Technique

2020 ◽  
pp. 78-90
Author(s):  
Balaji P. S. ◽  
Karthik Selva Kumar Karuppasamy ◽  
Bhargav K. V. J. ◽  
Srajan Dalela
Keyword(s):  
Strain Gauge ◽  
Strain Measurement ◽  
Temperature Effects ◽  
The Other ◽  
Strain Selection ◽  
Optical Methods ◽  
Brittle Coating ◽  
Coating Technique ◽  
Metallic Foil ◽  
Full Benefit

The strain gauge system consists of a metallic foil supported in a carrier and bonded to the specimen by a suitable adhesive. Previous chapters discussed the construction, configuration, and the material of the strain gauge. The strain gauge has advantages over the other methods. A strain gauge can give directly the strain value as output. However, in optical methods, it is required to interpret the results. It is also required to be aware that the strain gauge technology is majorly used, and it can also be easily wrongly used. Hence, it is required to obtain the proper knowledge of the strain gauge to get the full benefit of the technology. This chapter covers the majorly on the performance of the strain gauge, its temperature effects, and strain selection. Further, this chapter also covers the brittle coating technique that is used to decide the position of the strain gauge in the applications.

Static strain measurement with submicro strain resolution and large dynamic range using twin grating Fabry-Perot sensor

2001 ◽  
Author(s):  
Mikhail G. Shlyagin ◽  
Pieter L. Swart ◽  
Serguei V. Miridonov ◽  
Anatoli A. Chtcherbakov ◽  
Ileana Marquez Borbon ◽  
...  
Keyword(s):  
Strain Measurement ◽  
Dynamic Range ◽  
Large Dynamic Range ◽  
Static Strain ◽  
Fabry Perot

π-phase-shifted FBG for improving static-strain measurement resolution based on triangle-wave laser tuning technique

2014 ◽  
Author(s):  
Wenzhu Huang ◽  
Wentao Zhang ◽  
Tengkun Zhen ◽  
Ce Bian ◽  
Yanliang Du ◽  
...  
Keyword(s):  
Strain Measurement ◽  
Static Strain ◽  
Measurement Resolution ◽  
Wave Laser ◽  
Laser Tuning

Repeatable and High-Efficiency Patterning of Silver Nanowires on PDMS Using Micromilled Aluminum Molds

2019 ◽  
Vol 7 (4) ◽  
Author(s):  
Rick Helgason ◽  
Ayan Choudhury ◽  
Yongjun Lai
Keyword(s):  
Efficient Method ◽  
Strain Gauge ◽  
High Efficiency ◽  
Silver Nanowires ◽  
Silver Nanowire ◽  
Two Dimensional ◽  
Wide Range ◽  
Sharp Edges

Abstract We present an inexpensive, repeatable, and efficient method of patterning silver nanowires onto polydimethylsiloxane (PDMS) using a mold-based approach. A micromilling machine is used to prepare an aluminum mold with a raised pattern so that PDMS cured in these molds is imprinted with the design. A solution of silver nanowires and ethanol can then be injected into the pattern. This method can be used to pattern silver nanowires onto PDMS in any two-dimensional (2D) layout, meaning it can be extended to produce a wide range of PDMS/silver nanowire-based sensors and devices. We demonstrate this by the development of two separate patterns. An intricate logo is developed in order to demonstrate the capability of patterning curved and sharp edges, and a strain gauge is developed in order to demonstrate a functional device.

scholarly journals The Significance of Local Lateral-Strain Measurement of Soil Specimens for a Wide Range of Strain

1994 ◽  
Vol 34 (2) ◽  
pp. 95-105 ◽  
Author(s):  
Satoru Shibuya ◽  
Choon-Sik Park ◽  
Fumio Tatsuoka ◽  
Fumihiro Abe ◽  
Supot Teachavorasinskun ◽  
...  
Keyword(s):  
Strain Measurement ◽  
Lateral Strain ◽  
Wide Range

Applications of Fiber Bragg Grating in Strain Measurement of Concrete Bridge

2011 ◽  
Vol 368-373 ◽  
pp. 2286-2290
Author(s):  
Xian Xi Tang ◽  
Xian Zhou Tang ◽  
Yue Xu ◽  
Wei Guo
Keyword(s):  
Fiber Bragg Grating ◽  
Strain Gauge ◽  
Strain Measurement ◽  
Fatigue Loading ◽  
Good Effect ◽  
Bragg Grating ◽  
Fiber Grating ◽  
Concrete Bridge ◽  
Experimental Researches

In order to verify the role of fiber bragg grating strain gauge in strain measurement of concrete bridge, and the influence of concrete and steel strain properties by fatigue loading, the relevant experimental researches were carried out. The results indicated that the Fiber Bragg grating strain gauge could reflect the strain regularity of concrete and steel well; for the fiber grating strain rosettes inside the concrete, the pasting equipments of fiber gratings had a certain impact of the measurement effect. The fatigue loading had a certain impact of the properties of concrete and steel, in conditions of the same number of fatigue, the greater the stress amplitude the more obvious the effects. The results analysis shown that, fiber grating strain measurement innovated the means and methods of strain measurement in detailed structure of the concrete bridge, for the strain measurements of concrete bridge under fatigue loading, the FBG could still play very good effect.

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