Articles about Optics and Photonics, Lasers, Fiber Bragg gratings and FBG sensors

Fiber Bragg grating sensors for high temperature environments

on February 15, 2018

With the development of modern industries, a need for new, innovative solutions for extreme temperature monitoring arises. Several industries, like mining and energy industries, often deal with high temperatures that are a significant factor in equipment deterioration and premature failure. Moreover, the current infrastructures used in these industries are weakened by the time of their installation and by the growing demands of the modern world. The development of fiber optic technology, like fiber Bragg grating sensors, have already proven to be valuable for temperature monitoring in harsh conditions.

The development of fiber Bragg grating sensors has become prominent for the monitoring of high temperatures in multiple industries due to the multiple benefits that FBG temperature sensors provide:

  1. High-temperature operation;

FBG sensors are able to withstand and operate stably under high temperatures.  Additional coating can increase the stability of FBG temperature sensors and their temperature threshold. The max operating temperature of Optromix FBG temperature sensors is 150°C.

  1. Fast response time;

FBG temperature sensors are highly responsive and can be used for real-time temperature measurements.

  1. Small form factor;

Fiber Bragg grating sensors for temperature monitoring can be installed where the temperature could not be measured before. The small size of the sensors allows them to be installed in tight spaces, on moving parts of the equipment, etc.

Nowadays FBG sensors are used in a variety of different fields that require accurate and fast measurements. Depending on the nature of the application, FBG temperature sensors, FBG strain sensors, FBG pressure sensors, FBG displacement sensors may be utilized. The sensors are often accompanied by FBG interrogators to interpret the signals, and FBG multiplexers to create large monitoring systems with a big number of FBG sensors. The more complex the sensor system, the more intricate data can be obtained.

Optromix offers a wide range of FBG sensors, including FBG temperature sensors, as well as FBG multiplexers and FBG interrogators. If you would like to purchase fiber Bragg grating sensors, please contact us: info@optromix.com or +1 617 558 9858

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ЕлизаветаFiber Bragg grating sensors for high temperature environments

Fiber optic sensors in civil engineering

on December 27, 2017

Civil engineering infrastructures have a tendency of rapid deterioration due to the aging and usage beyond the design limits of components. In order to determine an accurate lifetime of the structure and its current state. Non-destructive measures must be implemented to obtain data on the condition of a structure; some of these include ultrasonics, radiography, acoustic emission, eddy current, etc. These methods have been specifically designed to detect damages in civil infrastructures. However, most of these methods suffer from certain disadvantages such as lack of portability, susceptibility to electromagnetic interference, and lack of capability for continuous performance monitoring. One of the alternative methods of civil structures measurement could be electrical strain gauges, however, they are not suitable for monitoring the propagation of internal cracks in concrete since the formation of a crack which intersects across these foil sensors would render them unusable.

Due to the use of composite materials in structural engineering applications, such as bridges and overpasses, the need for non-destructive measuring methods becomes increasingly more important. Methods of monitoring the performance of these structures and detection of damages effectively are in high demand. At the moment, fiber optic sensors are the best choice for civil infrastructure monitoring.

Recent developments in fiber optic technology, such as the development of various types of FBG sensors, have provided an excellent choice to civil engineers due to the multiple advantages that FBG sensors provide:

  1. Small dimensions;
  2. Good resolution and accuracy;
  3. Wide temperature operating range;
  4. Excellent ability to transmit a signal over long distances.

Moreover, FBG sensors are immune to electromagnetic interference radio frequency interference. One of the best qualities of FBG sensors is their ability to be incorporated into a series and interrogated; FBG Interrogators are high-precision measuring instruments for signal obtaining and processing from FBG sensors under operating conditions. FBG strain sensors are suitable for internal strain measurements as they do not affect the stress and strain states of the material in which they are embedded due to their small dimensions.

Optromix, Inc. is a U.S. manufacturer of innovative fiber optic products for global market, based in Cambridge, MA. Our team always strives to provide the most technologically advanced fiber optic solutions for our clients. Optromix is a fast-growing vendor of fiber Bragg grating (FBG) products line: fiber Bragg grating sensors, FBG interrogators, and multiplexers, Distributed Temperature Sensing (DTS) systems. We create and supply a broad variety of top-notch fiber optic solutions for monitoring of various facilities all over the world.

If you are interested in Optromix FBG sensors, please contact us at info@optromix.com

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ЕлизаветаFiber optic sensors in civil engineering

Fiber Bragg grating strain sensors for measuring bone strain

on December 14, 2017

Fiber Bragg grating strain sensors for measuring bone strainThe measurements of biomechanical behavior of the musculoskeletal system are crucial for understanding bone disease. The measurements also aid in designing specific medical devices. The understanding of how bone deformation under load occurs is of interest. There are several methods of measuring bone deformation and stress that are already used. Strain gauges were considered to be a standard tool for measuring biomechanical bone behavior; the electrical resistance of strain gauges varies proportionally to the amount of strain. Recent studies show that FBG sensors have a potential to be used for in-vivo applications to measure bone strain. The studies concluded that fiber Bragg grating sensors outperform traditional strain gauges as they have several competitive advantages: FBG strain sensors are made of biocompatible silicate glass ceramics materials that have a smaller risk of infection. Due to the small size of FBG strain sensors they can be used in locations where strain gauges are technically inapplicable; these locations include electromagnetic environments. Moreover, FBG strain sensors can easily adhere to irregular surfaces, such as a bone.

During studies of bone fractures, strain gauges and FBG strain sensors perform the same and both groups of sensors generally provide accurate results. However, fiber optic strain sensors make it easier to measure strain on bone plates than with the conventional strain gauges and are more feasible to monitor the evolution of the strain in bone. In addition, FBG strain sensors are able to assess the stiffness of callus formation of fractured bones.

Fiber Bragg grating strain sensors can also be used in studying the bone calcium loss effect on the strain response of the bone. The strain response received by utilizing fiber optic strain sensors can be used to determine the degree of calcium present in a bone.

The aforementioned studies and possible FBG strain sensor applications suggest that fiber optic strain sensors can be used as a new approach to assess bone biomechanics. 

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ЕлизаветаFiber Bragg grating strain sensors for measuring bone strain

Fiber Bragg grating sensors in smart cities

on December 7, 2017

Integration of fiber optic sensors into smart city infrastructures have been in the works for the past couple of years. Structural integration of fiber Bragg grating sensors and fiber optic sensor systems represents a new branch of engineering and is a major breakthrough in creating smart city infrastructures. Fiber Bragg grating sensor systems can be compared to and are capable of being the nervous system of infrastructure as they are extremely sensitive to outside and environmental interference. A large variety of FBG sensors allows for extensive measurements of multiple parameters of many different buildings and facilities.

There are already examples of the implementation of FBG sensors into smart city infrastructures. FBG strain sensors have been used in following applications:

  • Performance monitoring of deep shafts and retaining walls;
  • Monitoring of deep diaphragm walls;
  • Assessment of tunnel lining behaviour during tunnel construction; the FBG strain sensors are embedded in the precast concrete lining segments when being made in the factory;
  • In-the-field testing of large diameter piles by integrating FBG strain sensors;
  • Monitoring of old tunnels during construction that happens nearby.

FBG temperature sensors are used for:

  • Field testing of thermal piles in order to evaluate the  thermo-mechanical response of piles during heating and cooling;
  • Monitoring the power lines to detect overstressed areas.

One of the main advantages of FBG sensors is that they provide reliable data that allow for well-informed decision-making based on reliable evidence. Fiber optic systems allow for the assessment of thousands of sensors in real time on a single cable. FBG sensor systems are well-suited to the detection and recording of critical structural response characteristics as well as environmental indicators that lead to degradation.

Optromix, Inc. is a U.S. manufacturer of innovative fiber optic products for global market, based in Cambridge, MA. Our team always strives to provide the most technologically advanced fiber optic solutions for our clients. Optromix is a fast-growing vendor of fiber Bragg grating (FBG) products line: fiber Bragg grating sensors, FBG interrogators and multiplexers, Distributed Temperature Sensing (DTS) systems. We create and supply a broad variety of top-notch fiber optic solutions for monitoring of various facilities all over the world.

If you are interested in Optromix FBG sensors, please contact us at info@optromix.com

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ЕлизаветаFiber Bragg grating sensors in smart cities

Applications of distributed temperature sensing technology

on November 30, 2017

Fiber optic sensing technology has a potential to replace conventional electromagnetic temperature sensors that are used in civil, environmental, mining, energy exploration. Fiber optic sensors are especially useful in harsh and difficult-to-access environments as fiber optic cable is immune to electromagnetic interference and performs well under high pressures and temperatures. Despite being resilient, the sensors inside the fiber are extremely sensitive to temperature, pressure, and vibration. These advantages of optical fiber sensors make them ideal for measuring surrounding temperature with fine spatial and temporal resolution.

The performance of distributed temperature sensing has improved due to great efforts and research that has been put towards the development of fiber optic sensors. DTS systems have proved themselves useful in many applications that require large area coverage with high location accuracy.

Distributed temperature sensing is s fiber optic technology that can detect temperature along the length of a fiber. The measurements of temperature on the fiber are temporally continuous, have a high-frequency response and fine spatial resolution. DTS systems have a potential to become a standard tool for real-time data collection; these systems can also be coupled with emerging instrumentation technology to assist people in making decisions on the safety of personnel and structures.

The applications of DTS have been growing rapidly over the past decade; oil and gas industries have been utilizing DTS systems the most, for example, gas breakthrough detection and electrical submersible pump monitoring in the oilfield. There are many applications of DTS systems in the energy industry; there are multiple distributed temperature sensing technologies that have already been field-tested. Some of the already tested applications include hydraulic fracture monitoring, vertical seismic profiling, gas-lift-optimization, flow profiling, and sand detection.

Optromix, Inc. is a U.S. manufacturer of innovative fiber optic products for global market, based in Cambridge, MA. Our team always strives to provide the most technologically advanced fiber optic solutions for our clients. We present Trinius – a distributed temperature sensing system that can help power companies to improve their distributing mains and optimize transmission loads. It provides information about required investments in infrastructure.

If you are interested in Optromix DTS system, please contact us at info@optromix.com

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ЕлизаветаApplications of distributed temperature sensing technology

Distributed temperature sensing systems for power cable monitoring

on November 23, 2017

Distributed temperature sensing systems for power cable monitoringPower cable monitoring has been the main domain of distributed temperature sensing systems use for the past 30 years. Distributed sensing overall includes distributed temperature sensing, distributed acoustic sensing and to a lesser degree distributed strain monitoring. All these systems are used in different ways in various fields, including  power lines monitoring:

  1. Buried cable monitoring;
  2. Tunnel cable monitoring;
  3. Subsea power cable monitoring;
  4. Overhead cable monitoring.

The rapid development and evolution of optic technology have ensured their wide use in the aforementioned applications. However, distributed temperature sensing systems are becoming increasingly popular among industry professionals, especially in power cable monitoring applications.

Distributed temperature sensing systems can be used for real-time thermal rating of cables, also known as dynamic cable rating. This has been primarily used to monitor buried and sub-sea cables, however, dynamic cable rating has been found extremely useful for overhead power lines monitoring during winter. Due to low temperatures, ice can form on the power cables, resulting in damage to the cables and the breakdown of the system. The power cables situated in northern regions are often stretched for hundreds of meters without support, which makes them susceptible to breaking due to the weight of ice. In order to prevent the breakdowns, distributed temperature sensing systems are utilized to detect increased strain on the cables. If the excessive strain is detected on the transmission lines, ice melting procedures are executed.

Distributed temperature sensing systems are also used to detect hot spots that may indicate segments that are overstressed. This helps to establish the limits of power lines capability, the lifetime of the wires, etc. This information may be helpful for asset life extension and faster fault detection. Distributed temperature sensing systems are used for fire detection. This application is especially important for cable tunnels where at times there is personnel in the vicinity of the cable.

Optromix is a fast-growing vendor of fiber Bragg grating (FBG) products line: fiber Bragg grating sensors, FBG interrogators, and multiplexers, Distributed Temperature Sensing (DTS) systems. We create and supply a broad variety of top-notch fiber optic solutions for monitoring of various facilities all over the world.

If you are interested in Optromix distributed temperature sensing system, please contact us at info@optromix.com

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ЕлизаветаDistributed temperature sensing systems for power cable monitoring

Fiber laser systems for laser cutting applications

on November 9, 2017

The global sales of fiber lasers for laser cutting application has been growing by 3-4% per year. Fiber laser systems are being incorporated into existing cutting machines for sheet metal; in 2017 alone more than 7000 fiber laser systems have been installed. Fiber lasers have been replacing traditional CO2 lasers as they provide many benefits, like faster metal processing, higher efficiency, high beam quality, low maintenance costs, ability to process highly reflective materials such as copper. As a result, fiber lasers sales now exceed the sales of CO2 lasers.

The significant improvements in laser cutting that fiber lasers provide are estimated to have a great impact on the global economy due to the growing demand for products constructed out of metal. Moreover, fiber laser manufacturers are constantly developing new laser types and ways to improve existing fiber laser systems. The developments of fiber laser systems will result in increased productivity while reducing cost per part. The improvements in fiber laser quality eliminates any doubts that manufacturers might have about the implementation of fiber optic technology into the workflow.

Some of the features that are beneficial for laser cutting application include:

  1. Material handling automation;

The automation of the material handling is a necessity for the process of fiber laser metal cutting. Due to the fast operation of fiber laser systems, the cutting machines often on time drop as the machine is waiting for a new load. The automation of this process will further reduce the cost of making a part.

  1. Manipulation of the laser beam;

One of the most recent advances in fiber optic technology is the ability to manipulate the laser beam directly. This results in edge quality that rivals the CO2 machines.

Optromix provides world-class laser systems and it is our highest priority to deliver the best quality products to our clients. Our main specialization is manufacturing single frequency fiber lasers. When manufacturing our single frequency fiber laser products we implement unparalleled quality management system with world-class requirements and regulations. Optromix erbium laser, ytterbium laser, СО2 laser, Excimer laser, and Ti:Sapphire laser technologies offer a vast range of applications and can be used in different research fields. We prioritize the needs of our clients and we are always dedicated to creating unique and innovative technologies.

If you are interested in Optromix fiber laser systems for laser cutting, please contact us at info@optromix.com

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ЕлизаветаFiber laser systems for laser cutting applications

Advantages of fiber lasers for laser cutting and welding

on November 2, 2017

Solid-state lasers, like fiber lasers, diode lasers, etc., have been dominating the field of laser cutting and welding over the past several years. They are faster, simpler, perform two times faster, are less expensive to purchase then CO2 lasers. The hourly cost of solid state lasers is much less than that of CO2 lasers, which makes them attractive for laser cutting applications.

The design of solid-state lasers, fiber laser systems, in particular, is simple to integrate into existing systems and easy to operate. Manufacturers have been implementing fiber lasers into production seamlessly as they move into new fiber laser applications.

Solid-state lasers produce light at different wavelengths than CO2 lasers; the near-infrared wavelengths are absorbed easier by aluminum, copper, and brass, which makes them easier to cut. Solid-state lasers are capable of high-speed laser deposition welding, fusing metal powder for 3D printing, and copper welding, etc. A wide range of applications makes fiber laser systems versatile.

High speeds of material handling are expected to greatly improve operational efficiency as fiber laser systems outpace the ability of material handling to feed the material; this means that the seed of a laser is no longer the bottleneck in the manufacturing process. The installation of fiber lasers and their implementation into operations offers a vast improvement in productivity and efficiency over the conventional CO2 lasers.

Another great advantage of fiber lasers is their customization: the level of control over the parameters that can be employed – frequency of pulse, power level, and duration of pulse – is instantaneous. CO2 lasers have a time lag after the changes are implemented, which is not ideal for the production process. Fiber lasers can be controlled in real-time, increasing the welding effects.

Optromix Inc., headquartered in Cambridge, MA, USA, is a manufacturer of laser technologies, optical fiber sensors, and optical monitoring systems. We develop and manufacture a broad variety of Fiber lasers, СО 2 lasers, Ti: Sapphire lasers, Dye lasers, and Excimer Lasers. We offer simple Erbium laser and Ytterbium laser products, as well as sophisticated laser systems with unique characteristics, based on the client’s inquiry.

We manufacture lasers using our own technologies based on the advanced research work and patents of international R&D team.Laser processes are high quality, high precision, easily-automated manufacturing solutions that provide repeatability and flexibility.

If you are interested in Optromix fiber lasers, please contact us at info@optromix.com

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ЕлизаветаAdvantages of fiber lasers for laser cutting and welding

Fiber laser systems in automobile and electronics applications

on October 19, 2017

A new report has shown that the fiber laser market will grow faster than predicted earlier due to the increased interest from automobile and electronics industries. The interested is driven by an increased demand for green manufacturing and a concern of the material manufacturers towards the environment. Fiber laser systems provide high wall plug efficiency, an ultra-compact footprint, an excellent beam quality which does not require the complicated optics for the beam delivery.

With the development of fiber optic technology, fiber lasers are getting less expensive. The lower price of fiber laser systems makes laser welding, cutting, etc. more cost-effective. The prospect of minimizing the expenses and optimizing the production process drives the representatives of automobile and electronics industries towards the use of fiber laser systems in the production process. This increased demand will excel the market growth.

Besides being cost-efficient, fiber laser systems offer multiple beneficial properties that are desirable for many applications. Fiber lasers have high processing speed, which increases the volume of production of any given industry, making fiber lasers ideal for high volume production applications, like fiber laser welding and cutting. The ability to cut thicker and undesirable materials that often pose a challenge for other types of lasers and other optic technology. This ability offers a great market potential for various industries.

The Asia Pacific region is expected to be the dominant region that is expected to have the biggest share of the fiber laser market during the forecast period. This region dominates the market in terms of revenue and is expected to be the main driving force of the demand for fiber lasers for automobile and electronics applications. The Asia Pacific and North American regions are expected to hold two-thirds of the market.

Optromix Inc., headquartered in Cambridge, MA, USA, is a manufacturer of laser technologies, optical fiber sensors, and optical monitoring systems. We develop and manufacture a broad variety of Fiber lasers, СО 2 lasers, Ti: Sapphire lasers, Dye lasers, and Excimer Lasers. We offer simple Erbium laser and Ytterbium laser products, as well as sophisticated laser systems with unique characteristics, based on the client’s inquiry. We manufacture lasers using our own technologies based on the advanced research work and patents of international R&D team.Laser processes are high quality, high precision, easily-automated manufacturing solutions that provide repeatability and flexibility.

If you are interested in Optromix fiber laser systems, please contact us at info@optromix.com

 

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ЕлизаветаFiber laser systems in automobile and electronics applications

Distributed temperature sensing market

on October 12, 2017

A recent fiber optic market report has evaluated the distributed temperature sensor market from 2016 to 2026. The global DTS market is estimated at US$ 1.1 Bn in 2015 and is expected to register a CAGR of 10.4% from 2016 to 2026.

The main contributor to the rise of the DTS market is the oil and gas industry. The adoption of fiber optic sensors into these industries can be explained by numerous advantages that distributed temperature sensing systems offer:

  1. a spatial resolution of 1 m with accuracy to within ±1°C at a resolution of 0.01°C;
  2. continuous monitoring of temperatures;
  3. real-time temperature monitoring.

Distributed temperature sensor systems are used in a number of different industries, such as power cable monitoring, fire detection, leakage detection, industrial induction furnace surveillance. However, gas and oil production is expected to be a major factor driving the growth of the DTS market. Moreover, fiber optic sensors, including distributed temperature sensors, will be used in various construction projects due to government initiatives; this is also expected to propel the growth of the DTS market.

The unique qualities and attributes of fiber optic sensor systems and DTS sensors also drive the worldwide demand for these systems, hence fueling the growth of the market.

Among different segments of fiber optic sensor market, temperature sensing application segment has been the largest, estimated at US$ 518.2 Mn in 2015. The temperature sensing sector is expected to rise by 12% during the forecast period.

Oil and gas sector occupies 60% of the market share, which is forecasted to continue to grow.

Optromix is a fast-growing vendor of fiber Bragg grating (FBG) products line: fiber Bragg grating sensors, FBG interrogators, and multiplexers, Distributed Temperature Sensing (DTS) systems. We create and supply a broad variety of top-notch fiber optic solutions for monitoring of various facilities all over the world. Our main goal is to deliver the best quality fiber optic products to our clients. We produce a wide range of fiber optic devices, including our cutting-edge customized fiber optic Bragg grating product line and fiber Bragg grating sensor systems.

If you are interested in Optromix Distributed temperature sensing systems, please contact us at info@optromix.com

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ЕлизаветаDistributed temperature sensing market