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Power Optical Fibers Design reduces stress in fiber core


niversal Clad (UniClad) optical fiber from Fiberguide is designed for integration into fiber based lasers and OEM systems performing high power transmission. The fiber uses a large core-to- clad ratio to reduce stress transfer to its core, maintaining laser beam quality and improving focal ratio degradation in lasers used for cutting, welding, drilling, soldering and marking.

UniClad high power optical fibers from Fiberguide Industries. UniClad fiber has a pure fused silica core and doped fused silica cladding with a polymer coating. The fiber has a fixed 500µm cladding diameter for 100-400µm core sizes,

proportionately larger cladding for 600-800µm core sizes, to make laser alignment and splicing easier. Complete high power laser assemblies are also


Fibreguide Tel: 01455 556360 Web:

enter 809

hydraulic applications. Bifold provide the widest range of relief valves for pneumatic and hydraulic instrument applications with pressures ranging from 7 to 1300 bar. Our relief valves are suitable for safety applications. Many other relief valves of this type on the market, fail to perform the correct safety function required. The Bifold pneumatic relief valves have a very high flow and low dead band. The relief valves are a safety device designed to match Bifold’s high flow filter regulators. The device will limit the over pressure to less than110% of the set point in the event of a filter regulator mis-operation. Some other relief valves on the market have insufficient flow to be used as a safety device in this application. Bifold precision relief valves have very high sealing forces along with accurate and narrow dead bands allowing system design pressure to be reduced. Precision relief valves should be used in preference to sprung relief valves where there is a risk of vibration induced leakage or where dead bands are important to system performance.

Widest range of relief valves B

Bifold Tel: 0161 345 4777 Web:

Gas Mixing software automates blending of constituent gases

A and

licat Scientific’s new software platform, Flow Vision MX, computerizes control of gas mixing, saving time and reducing error. The simple platform configures up to six Alicat mass flow controllers into a single gas mixing station with an easy to follow visual set up. Alicat Flow Vision MX simplifies setup in blending constituent gases. An intuitive graphical user interface, including a set up wizard, guides users through programming gas mixture parameters. The software prohibits mixtures below 100 percent, eliminating calculation errors and wasted gas costs. Gas blend settings can be saved on the system for future use, making production changeovers quick and error free. Flow Vision MX’s data logging lets users review mixture accuracy and performance. Percentages for the total mixture, a single controller or multiple controllers are quickly and easily adjusted with simple sliders. With minimal system requirements, the software runs efficiently on even older computers. It support new mixing systems based on Alicat controllers and can be used to upgrade existing manual ones, saving time and money.

Alicat Scientific Tel: 00 520.290.6060 Web: enter 811 enter 810

ifold, Official Partner of the Marussia F1™ Team have linked Safety with Performance to provide the widest range of relief valves for pneumatic &

indicators & displays... conventional to fieldbus

visit our website BEKA associates Ltd

Old Charlton Road, Hitchin, Hertfordshire, SG5 2DA UK Tel +44 (0) 1462 438301 e-mail

Fax +44 (0) 1462 453971 Enter 27 Electrical Engineering FEBRUARY 2013 Enter 28 31

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