Wires&Bytes BendSense cable for vectorial detection of bending in three dimensions

13 Apr 2021

A deformation applied to an optical cable results in positive or negative longitudinal strain exerted along the circumference of the cable and this can be exploited for bend measurements using fiber optic cables. It is well-known in the industry that optical fibers are sensitive to longitudinal strain. A one-dimensional displacement — either expansion, or compression of the fiber — represents scalar strain, whereas three-dimensional displacement represents vectorial strain. The latter provides information on “bending” at that position. This is where a special class of fiber optic bend measurement cables can be deployed. The intelligent cable design using off-the-axis integration of multiple fibers inside the cable will provide full information on bending at that location.

Example of prototype evaluation in the lab


Vector displacement information is extremely useful in various applications such as crack growth monitoring, umbilical, pipeline, tunnels, powerlines, and robotic arms. When a cable is embedded into the structure, it will take the shape of the structure allowing to explore the configuration. One of the demanding needs of the industry is to understand the dynamic movement of the structure using fiber optic sensing. Hence a cable that provides information on the cable bending along the entire length brings several benefits to the owners and operators, e.g., providing dynamic inclination information for the long structures and infrastructural objects helps the owners to predict the lifetime of their assets.

Example of bend measurement cable type


For fiber optic cables the cable bend measurement capability can be categorized in measurement ranges:

  • short range: of a few meters
  • middle range: of a few tens and a few hundreds of meters
  • long range: of a few kilometers or tens of kilometers.

Measurement ranges determine possible interrogation techniques to be used. Long-range bend measurements capability has always been the focus for Wires&Bytes. The integration of these interesting features into new generation of fiber optic cables has resulted into a family of cables called MulitSense. Various MultiSense designs have been implemented in the field and their technical capabilities have been exceeding the customers’ requirements and expectations so far.


Learn more about Non-metallic MultiSense


Taking into account the demanding applications, Wires&Bytes has developed a BendSense cable. Our new cable design is a further evolution of our MultiSense design to provide information on vectorial deformation from the cable. The new cable has multiple fibers, configured either twisted or non-coplanar inside the cable. This allows optical fibers to be sensitive to the bending regardless the bend plane and offering the end user to deduce bend direction and amplitude of the deformation.

Possible encapsulation options for bend measurement cables


All the cables have been thoroughly tested in our lab using BOTDR technology making sure Wires&Bytes delivers fit-to-purpose products. Wires&Bytes aims at helping you to develop and manufacture cables for specific bend measurements. You can be rest assured you are provided with the best technique to interrogate your cable, data acquisition, processing, and visualization, so you can get detailed insights of your assets’ integrity with our bend measurement cables.

Pipeline integrity monitoring

31 Mar 2021

Safe and reliable operation of any pipeline system requires applying new technologies to improve its inspection, operation, maintenance, and integrity management.

Wires&Bytes offers pipeline companies a holistic view toward preventing and detecting leaks and other damages using fiber optic technology. Pipeline integrity monitoring is one of those modern tools which ensures that pipelines do not cause harm to people or the environment, at the same time being reliable and secure source of information to pipeline operators.


  • Combination of optical and electronic sensors in one system
  • A wide range of measured parameters (point sensors of pressure, humidity, fluid composition)
  • Downholes and formations health assessment in continuous mode
  • Remote control allowing to optimize operating modes
  • Control over the implementation of procedures for oil and gas production intensification
  • Monitoring of remote objects and objects in harsh environment

👉   Visit the page to take a look at the video, where the process of pipeline integrity monitoring is shown and learn more

Newest WB extension: a dynamic fatigue testing machine to predict cable flex life

25 Mar 2021

Fatigue failure by flexing is a common failure mode for cables in a high flex environment. In order to predict it, there are various analysis tools and test procedures.

Keeping up with the latest developments, Wires&Bytes is presenting its newest addition to the Test Center — a reversing cable cycling machine, with programmable tension loads, suitable for precise bending tests. It fully complies with EN/IEC norms, but its technical possibilities exceed them!

This machine enables sophisticated lifecycle testing to customers’ exact specifications to ensure smoother and safer operations. It is now possible to cycle test and characterize for repeatable bending diverse cable types including electrical, fiber optic and mechanical slicklines and also wirelines of small sizes.

As part of Wires&Bytes extensive R&D offerings, we consider it a matter of the utmost importance to possess modern measurement and testing equipment. Thus, all our customers can be sure of top-notch quality of all our finished products.

We welcome your questions and requests to learn more about how we conduct our tests.

Make sure to address even the smallest details!

Why do bridges collapse and how to prevent bridge disasters?

18 Mar 2021

There have been many serious bridge disasters throughout history.

  Why do bridges collapse?

  • One: Natural disasters
  • Two: Construction and demolition incidents
  • Three: Design and manufacturing defects
  • Four: Improper or neglected maintenance
  • Five: Fire

The history of bridge construction and catastrophic failures has taught us a lot of things, but especially to think about safety first. Lessons learned: all the problems listed above can be tracked! Early detection of damage leads to prevention of critical issues and structural faults, reducing repair time and costs, and most importantly saving peoples’ lives!

Wires&Bytes offers a range of cables for structural health monitoring: Non-metallic MultiSense, UniTEF, SensoWire, and others. Discover more on our website.

  Pictures of bridge collapses in the gallery:

  • I-35W Bridge, Minneapolis, Minnesota (Morry Gash/AP)
  • I-5 Skagit River Bridge, Mount Vernon, Washington (Wikipedia)
  • Florida International University pedestrian bridge (Pedro Portal/AP)

Welcome Thomas Utz — Director of Wireline Products

09 Mar 2021

Wires&Bytes welcomes a new team member — Thomas Utz who is joining us as a Director of Wireline Products.

Tom is based in Houston, Texas and is joining the rapidly growing US office of Wires&Bytes. He has been working in the Oil&Gas market for the last 40 years and has extensive experience in wireline industry. He previously worked at such companies as Rochester Corporation and Kerpen Kabel, Camesa and WireCo group and well-known in the industry.


With any sales and product inquiries, please contact Tom via tom.utz@wiresnbytes.com

Welcome onboard, Tom! Having you with us means a strong commitment from Wires&Bytes to grow our customers base.

Oil&Gas well downhole monitoring

02 Mar 2021

Fiber optic cables are now routinely deployed for condition monitoring purposes, making them not only a reliable, sensitive, and smart source of information but also a medium to transfer data to the control room from the remote locations.

Introduction of multisensing cables allowed the customer to sense and transfer multiple sensing data, which was the key motivation behind the development. The new cable will decrease the installation and maintenance costs, optimize equipment operation, provide faster emergency response, reduce environmental damage, etc.


  • combination of optical and electronic sensors in one system
  • a wide range of measured parameters (e.g. temperature, acoustics, strain, pressure and humidity)
  • assessment of well health in continuous and instantaneous mode
  • remote control, allowing to optimize operating modes
  • control over the implementation of process to enhance oil and gas production

👉  Visit the page to take a look at the video, where the process of Oil&Gas well downhole monitoring is shown and learn more

Non-metallic MultiSense. Application (real photos!)

11 Feb 2021

Last week we unveiled a Non-metallic MultiSense cable, today let’s take a closer look at its applications.

MultiSense is not just an eye-catching name, it provides a platform to monitor different physical changes with a single cable. Non-metallic version is fully dielectric (it cannot be revealed by metal detectors!), making it safe to use where electric current can be an issue. If you need a more robust cable with higher tensile strength, it can be encapsulated in stainless steel.


  This cable can be produced in two options:

  • as a finished product ready for deployment
  • as a semi-finished product for further integration into larger cable designs and other structures

  Where Non-metallic MultiSense can be applied:

  • all types of Distributed Fiber Optic Sensing systems (DFOS): DTS (temperature), DAS (acoustic), DSS (strain)
  • applications that require enhanced acoustic response using standard telecom fibers
  • distributed monitoring: tunnels, roads, railways, conveyor lines, pipelines, dams and dykes, overhead and overground electric power lines, underground high-voltage electric lines
  • intrusion detection
  • simultaneous multiple measurements along with fibers for data communication


Are you looking for a cost-effective solution and interested to discuss the options for your project?

Send us a request via website and our sales team will provide you with the details!

Non-metallic MultiSense. New design in the world of distributed sensing

04 Feb 2021

Compact but multifunctional, Non-metallic MultiSense makes a change in the world of distributed sensing.

Despite its considerably small size and low weight, it is able to support all types of DFOS technologies and deliver multiple measurements. You might have already seen our Metallic MultiSense, but today let’s take a look at this design.


Non-metallic MultiSense is a combination of a gel-filled central PBT loose tube with optical fibers freely placed inside with 4 tight-buffered optical fibers, FRP rods, and outer jacket.

Please note that we design cables based on our customers’ specific technical requirements. In case of Non-metallic MultiSense besides any other requirements, the standard lay length may also be changed according to the project needs.

As this design is brand-new, you won’t find it among others on our website. That is why if you are interested in it and would like to learn more about Non-metallic MultiSense, please send an inquiry via website.

SlickLight. Thick-wall steel encapsulation tube

27 Jan 2021

Wires&Bytes will commission a new production line to provide thick-wall tubes for our cables starting in Q2/2021.

This is the culmination of design, technology, and investment targeted to meet our market and customer demands for longer, stronger, more reliable, and cost-competitive cables. We have worked closely with machinery suppliers to develop a state-of-the-art production line including forming the tube, superior welding technology, and quality control features. The new technology will offer cables which slick, gas-tight, and better sealing process on well head characteristics.

Take a look at our animated video to explore the thick-wall steel encapsulation tube design in detail (overall OD = 4.00mm with wall thickness of outer encapsulation around 0.8mm).

👉  If you haven’t had a chance yet, read our article about the distinguished features of the thick-wall small diameter steel encapsulation tube.

👉   Contact us for details on how this technology can improve your well logging experience, increase your ROI, and reduce TCO (Total Cost of ownership) at the same time.

Please let us know how we can help you to implement it in your location.

What is the difference between traditional, digital and fiber optic slicklines?

20 Jan 2021

Today’s oil and gas industry challenges require companies to deploy the most up-to-date technologies or upgrade the current ones as an alternative to the traditional mechanical wireline services.

Standard slickline servicing for the oil and gas industry can provide an effective well maintenance by deploying and manipulating the downhole tools. For many decades, slicklines and wirelines are used in well interventions that provide data with limited accuracy and acquisition frequency. The results depend very much on the skills of the operator and the quality of used tools. With the introduction of new disruptive technologies, these limitations have now overcome, for example, with the introduction of fiber optic (FO) slickline — the slickline/wireline becomes a distributed sensor along the whole length hence turning the full length of the slickline into a dense chain of passive segments, each one transformed into measurement gauge sensitive to external perturbation and physical quantities, detecting and measuring temperature, sound/acoustic, strain and pressure.

Wires&Bytes, which is at the forefront of the technology, have looked ahead and developed and offer FO slicklines and FO wirelines based on advanced fiber optic distributed sensing technology, DFOS. Wires&Bytes slickline tracks and monitors well activities delivering cost-effective data from the downhole allowing to make the quickest desicions for operators and owners, in many cases at wellsite.


The timely availability of well health information is critical to the oil and gas companies, where decisions hinge on the availability of useful data to implement it quickly and efficiently. The DFOS based slickline and wireline is an efficient and reliable tool, saving time and operating cost to the well operator, providing real-time information from the wells through an intelligent monitoring and allowing to identify and rectify issues and flaws in a timely manner.

Are you ready for advanced fiber optic sensing for precise well data at the speed of light? Let us know all your requirements and we will provide you with the monitoring solutions which are reliable, cost-effective and would increase your Return-on-Investment (ROI).

For further read, please go for Wires&Bytes “Slickline Measurements: The Future is NOW!”.