We have been busy in the second half of 2018 with, amongst other projects, several large simulator builds. Our Unisim Compact range of small, close-match solar simulators continue to also prove popular and our last system in stock has just shipped to the University of New South Wales.

We are continuing to work on the application of LED technology to our close-match simulators and have some interesting R&D work coming up in 2019 which will take our N-Zone solar simulator design to large area applications.

2018 has been very busy for our thermal vacuum chambers TVAC#1 and TVAC#2 as we have conducted bakeout and TVAC cycling work for a range of customers, including quite a lot of components for the ESA Solar Orbiter mission.

​We are currently designing a full IR heat shroud for TVAC#2 to be fitted in 2019. We had hoped to complete in late 2018 but demand for the chamber has meant maintenance time has been limited.

We are excited to announce that we will be expanding our lab capabilities to include FTIR analysis via transmission and ATR in early 2019. This facility will primarily be used for analysing molecular witness plates for contamination control during vacuum bakeouts. However, we will also be offering FTIR analysis of condensables collected from our standard outgassing test. There will be further announcements via this news page and our main test facilities page when this becomes available.

The installation of our new thermal vacuum chamber is slightly behind schedule but we are still on track to start testing the vacuum and thermal control system at the end of this month. New custom flanges for the old gate valve port are in the final stages of fabrication and finishing, the scroll and mag-lev turbo molecular pumps are installed and the control systems for the thermal plate are starting testing the end of this week.

TVAC#2 has water cooled door seals and chamber walls which means it will be capable of higher maximum temperatures than TVAC#1. We are also installing a thermal plate design we developed for a customer several years ago to achieve a very uniform temperature when using LN2 for cold temperatures and dwells.

There are also further re-designs from the thermal system of TVAC#1 which will be tested in TVAC#2 and will be used to upgrade TVAC#1 in the future.

Follow this blog for future updates or keep an eye on our test house page for when TVAC#2 is fully operational.

While we do not recommend working under such conditions, we are sometimes asked to help with urgent test requirements with little time to prepare.

​We were recently contacted with very short notice for a thermal vacuum test requirement. Less than two weeks after receiving the test procedure document we had begun the test and, even with the chamber not being configured how we would have liked it and the test procedure being altered by the customer 'on-the-fly', the test was completed on schedule. The results of the test were critical to the acceptance of a flight component and as such the customer was able to meet their deadline due to our rapid response.

A customer requirement for baking out hundreds of thermocouples meant pushing the capacity of our TVAC chamber. The down-time between bakeouts gave us a week to measure, design, manufacture, clean and fit spool system for loading the thermocouples. We were constrained by our temperature controlled shroud, but we were able to fit the components in time and complete the bakeout.

Our chamber can be fitted with a large a range of temperature controlled shrouds we have manufactured for it. However, we are able to manufacture new shrouds to accommodate samples which are more tricky to mount.

For this particular bakeout the samples need to be suspended in the center of the chamber. We were able to get a design to our highly skilled engineer within the day and continued the re-configuring of the chamber while the machining was being undertaken. Computer controlled DC power supplies were installed into the control rig and the PID software updated to take care of the temperature control of the multi-segment shroud. In a week we had the new shroud installed along with re-routed thermocouples, QCM and cold plate lines. The bakeout was then started on-schedule thanks to our quick turnaround.