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FBG Sensors

Fiber Bragg Grating Sensors

Fiber Bragg Grating (FBG) sensors have been used for years in many demanding harsh environment applications as an alternative to traditional electrical and mechanical sensors. Generally, FBG sensors offer higher accuracy, longer stability, smaller size, immunity to electromagnetic interference (EMI) and the ability to measure ultra-high speed events.
FBG temperature sensors

Temperature sensors

Fiber Bragg grating sensors, which reflected wavelengths shifts in response to temperature changes

FBG Strain Sensors

Strain sensors

Operate very similarly to the temperature sensors, the wavelength responds to the applied strain

FBG Displacement Sensors

Displacement sensors

Displacement sensors measure structural deformation estimation using the strain data

FBG Tiltmeter

Tiltmeters

Can be used for monitoring of the constructions inclination (tower buildings

FBG Accelerometers

Accelerometers

Used in a wide range of monitoring applications including the vibration measurement of building structures

FBG Pressure Sensors

Pressure sensors

Measure the relative pressure or level of liquids and gasses in a variety of vessels and pipelines

FBG Load Sensors

Load/Weight sensors

Can be used for measuring the load applied to various surfaces and structures

Fiber Bragg Grating Sensor Technology

FBG sensor technology relies on some sophisticated technology and physics. Laser light travels through a fiber core in a very defined manner. A Bragg grating is introduced onto the core of a fiber and the many reflections off of this grating create a stable sensor. Any strain (temperature, pressure, vibration, etc.), applied to the fiber Bragg grating into the fiber will cause a wavelength shift and magnitude change of the reflections. This change allows for very accurate measurements to be performed either over a long period of time or in an ultra-fast event.

Fiber Bragg grating sensors use an FBG as a sensing element. FBG is highly responsive not only to mechanical deformation but also to temperature changes. 

When the light beam travels towards the fiber Bragg grating, but the only specific wavelength of light is reflected by the refractive index, this wavelength is called Bragg wavelength. Essentially, this is what causes fiber optic Bragg grating to transmit most of the light while reflecting only certain wavelength.

The sensor may be located far away from the interrogating device (tens of kilometers), which applies to the quasi-distributed system based on FBG, as well as to any distributed systems, however, they have a very fast reply and low heat retention. It doesn’t require a power supply, grounding, and galvanic isolation, and it functions perfectly well under adverse climatic conditions and aggressive environment.

Fiber optic system has complete fire and explosion safety, it can’t hit with the electrical shock, and it doesn’t emit radio waves.

We Are Here For Your Service

Competitive pricing

We deliver cutting-edge hi-tech fiber bragg gratings products and solutions, while offering one of the best prices on the market

Extensive experience

Established in 2004, Optromix has an extensive experience in the development of fiber optic products and solutions

Quality and reliability​

When producing fiber optic monitoring equipment, we always follow the world-class requirements and regulations

Optromix, Inc. is a U.S. Manufacturer Based in Cambridge, MA.

Cutting-edge Fiber Optic Product Line
When producing fiber optic monitoring equipment, we always follow the world-class requirements and regulations. We provide customized fiber optic solutions to bring the most value to our customers and we guarantee outstanding performance of our fiber optic product lines.
  • Optromix, Inc. is a top choice among the manufacturers of fiber Bragg grating monitoring systems.
  • We are dedicated to deliver the best products and support to our customers
  • Our engineers have extensive experience and strong technical expertise in creating fiber Bragg grating products.

Types of FBG Sensors

  • Strain sensors operate very similarly to the temperature sensors, the wavelength responds to the applied strain. The sensors are welded directly to the surface of the metal structure (pipes, beams, etc.), and it has a protective silicone cover.
  • Tiltmeter can be used for monitoring of the constructions inclination (tower buildings, mine shafts). The sensor is equipped with thermal compensation sensors and self-calibration system.
  • Load/Weight sensor can be used for measuring the load applied to surfaces and structures. It is located between the two interacting surfaces. It is equipped with thermal compensation sensor.
  • Temperature sensors are a fiber Bragg grating sensors, which reflected wavelengths shifts in response to temperature changes. Temperature sensors are protected by a small-sized steel casing. It can be easily placed in any structure or material (including concrete).
  • Pressure sensors measure the relative pressure or level of liquids and gasses in a variety of vessels and pipelines. It can be used in piezometers, for indirect control of flow and liquid level in tanks and pipes.
  • Displacement sensor measures structural deformation estimation using the strain data. Sensor is installed on the structure surface, and it measures the distance between two anchor points. It can be used in a combination with additional components to determine soil displacement.
  • Accelerometer can be used in a wide range of monitoring applications including the vibration measurement of building structures, turbines, laboratory tests.