Fibre Optic Strain Gauge Get latest price

Fibre Optic Strain Gauges are based on Fibre Bragg Grating (FBG) technology, which relies on light that propagates through a fibre. The sensors are ideal to be used in structural health monitoring applications, where foil-type strain gauges could not perform well. These strain sensors exhibit an intrinsically high multiplexing capability which minimizes the noise generated from longer cables and reduces installation complexity. They do not require electrical power supply to operate, but instead they rely on light that propagates through a fibre.

In applications where access to the electrical power supply is restricted such as in offshore oil and gas platforms and marine applications, fibre optic sensors are preferred. When an external compression or stretching force is induced in the fibre, it is subjected to positive or negative strain. As a result, the interval at which the fibre-grating interference are placed will change. It will lengthen if the fibre is stretched and shortens if the fibre is compressed. This change will alter the time required for the reflected light to travel back which also changes the Bragg’s wavelength. The change in the Bragg’s wavelength is proportional to the strain induced in the fibre. The results can be transmitted to the Fibre-Bragg Interrogator for analysis and signal conditioning.

To contact Bestech Australia about Fibre Optic Strain Gauge use Get a quote.

Fibre Optic Strain Gauges are based on Fibre Bragg Grating (FBG) technology, which relies on light that propagates through a fibre. The sensors are ideal to be used in structural health monitoring applications, where foil-type strain gauges could not perform well. These strain sensors exhibit an intrinsically high multiplexing capability which minimizes the noise generated from longer cables and reduces installation complexity. They do not require electrical power supply to operate, but instead they rely on light that propagates through a fibre.

In applications where access to the electrical power supply is restricted such as in offshore oil and gas platforms and marine applications, fibre optic sensors are preferred. When an external compression or stretching force is induced in the fibre, it is subjected to positive or negative strain. As a result, the interval at which the fibre-grating interference are placed will change. It will lengthen if the fibre is stretched and shortens if the fibre is compressed. This change will alter the time required for the reflected light to travel back which also changes the Bragg’s wavelength. The change in the Bragg’s wavelength is proportional to the strain induced in the fibre. The results can be transmitted to the Fibre-Bragg Interrogator for analysis and signal conditioning.

Read less...

To contact Bestech Australia about Fibre Optic Strain Gauge use Get a quote.