Temperature Is Our Business

Hydrogen & Fuel Cells 2020

Expo

Europe’s largest hydrogen and fuel cells exhibition 2020

We will be exhibiting at Hydrogen & Fuel Cells Europe between 20th and 24th April 2020. The expo is part of Hannover Messe and is the world's leading trade fair for industrial technology.

 

High Performance for the Synchrotron Industry

Synchrotron

At Okazaki, our clients across all the industries that we deal with expect our products to deliver outstanding reliability and performance, none more so than our clients within the Synchrotron and Lightsource arena. Our expertise and knowledge along with our work to constantly bring the latest technical advances to market ensure our clients can trust that our products will provide the performance and reliability that they have come to expect from us.

Our products are expected to operate in the harshest of environments and so need to be of the highest quality. To enable this our entire range of mineral insulated (MI) cables are manufactured bespoke to meet the needs of a variety of experimental processes. Our MI cables are able to be used in signal transmission in the harshest environments and are able to handle the effects caused by radiation, heat and UHV. These MI cables are produced with semi-rigid properties so can be manufactured on site at our facilities to meet your designs.

Our MI cables are metal sheathed and can operate over a wide temperature range from 1.5k through to 2600°C. They can also be produced with a variety of configurations with variables such as conductor, sheath and dielectric material, a variety of diameters and choice of coaxial, triaxial and/or twisted core. Our team of engineers will be able to provide you with the appropriate configuration required for your needs ensuring we can eliminate any issues that could affect the performance you require. And because our cables are excellent at resisting radiation and temperature, they are perfect for applications such as thermocouples, control cables and low and high voltage cables.

When advanced temperature measurement is required within a complex application we can also provide a range of Thermocouples and RTD sensors. We incorporate sensor technology into our MI cables meaning we can use our unrivalled designs to offer stable and highly accurate results.

In environments such as Cryogenic temperature measurement where a low temperature range and fast response is crucial, our multipoint temperature assemblies provide all of the accuracy necessary to deliver results.  And if it’s vacuum use that’s required, our metal sheathed sensors will benefit from the flexibility of brazed or welded sealing into flanges and process connections.

If you would like to discuss this article and our products or view more detailed information I can be contacted on leona.lilford@okazaki-mfg.co.uk

 

 

Heaters - Expanding our horizons in Ion Thrusters

Satellite

 

Ion thrusters are used in a variety of applications, from keeping satellites in their correct position to propelling spacecraft throughout our solar system. For each thrust that one of these thrusters creates it uses a relatively low rate of propellant consumption, so they require significantly less propellant than what would be needed with chemical propulsion. In some cases where insufficient chemical fuel cannot be carried on the spacecraft Ion propulsion is the only solution to complete the desired mission.

According to NASA Ion Thrusters are now being used in over 100 of their Earth orbit communication satellites to keep them in their desired locations, and three NSTAR ion thrusters are enabling the Dawn spacecraft (launched in 2007) to travel deep into our solar system. And technology is being developed now that could one day see Ion Thrusters propelling humans to Mars.

How do Ion Thrusters Work?

Ion Thrusters work by ionizing a fuel by adding or removing electrons to produce ions. Most thrusters ionize the propellant by electron bombardment – a high energy electron (negative charge) collides with a propellant atom (neutral charge), releasing electrons from the propellant atom and resulting in a positively charged ion.

The thrust comes from an ion stream at very high velocities. This is called Plasma. Plasma has some of the properties of gas but is affected by electric and magnetic fields. A typical plasma thruster will have a heater to generate the heat needed to allow the plasma to start flowing in the Ion Thrusters. The plasma carries a current between the ionizing anode and a cathode. The current in turn generates a magnetic field at right angles to the electric field, and thereby accelerates the positive ions out of the engine to create the required thrust.

Heater solutions

At the heart of an Ion Thruster is the chamber that holds the cathodes. The cathodes are a part of the plasma generating system which give these thrusters their long life. Attached to the cathodes you will have heaters which will generate the required heat to allow the plasma to start flowing within the Ion thruster.

As mentioned earlier Ion Thrusters can have a very long lifetime so all elements involved in their construction are of course expected to meet the same lifetime of use. At Okazaki along with our colleagues at ARi, we have developed heater cable which is durable and offers a long lifetime suitable to be used in Ion thrusters.  

Development of our heating solutions required researching the latest materials and technologies to produce some of the highest quality heaters possible which can reach the high temperatures required to ignite the plasma within Ion thrusters, yet still provide the long-life reliability needed for deep space applications. We have achieved this by using refractory metals that allow us to reach temperatures that base metals are unable to attain.

The Future

Ion Thruster technology is evolving all the time as our horizons broaden deeper and deeper into space so at Okazaki our engineers continue to develop heater cable solutions to meet these ever-expanding demands.

The future is very exciting.

For more information our ‘Heaters for Ion Thrusters’ Datasheet can be found here. Alternatively contact sales@okazaki-mfg.co.uk if you’d like to discuss our heaters and other products.

 

All Set Up for our week at the Paris Airshow



We are all set up and ready for our week at Paris Airshow to promote our products designed for use in Aerospace Applications

We are here all week in Hall 6, Stand A65. If you are around pop over for a chat.

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Contact Details

t: +44 (0)2920 814 333
e: sales@okazaki-mfg.co.uk

Okazaki
Manufacturing Company
UK Limited

Ashwood House,
66 Cardiff Road,
Glan-y-llyn,
Taffs Well
Rhondda Cynon Taff
CF15 7QE
United Kingdom