Wednesday, 30 November 2011
Wednesday, 19 October 2011
Tuesday, 11 October 2011
Thursday, 22 September 2011
The fist thermal test performed included the mechanical parts that could experience problems at lower or higher temperatures. Therefore the reaction wheel, the linear guide rails, the release spine, the web and the wave spring got tested. All the components worked nominal after the freezing and heating.
The second thermal test included the electronics of Suaineadh. The electronics were booted up at room temperature and then the chamber was cooled down to -10C and the temperature was held for 15 minutes without any problem, everything worked nominal. In the next test the entire electronic was turned off and let cool down until all the components had ambient temperature (-10C). During the cold start, all the electronics turned on but the ground support software didn’t get any readings. The Suaineadh team is looking into this error at the moment in Stockholm and Glasgow to eliminate the source. Another thermal test of the entire experiment is planned for mid October anyways. The following test, where the components were heated up to +45C, was carried out without any problem. Even a hot restart at these temperatures didn’t showed any problems or anomalies.
Saturday, 17 September 2011
On the test day, all the components had to be brought over to the physics department that was luckily just across a small park from the mechanical & aerospace department. The set up of the vacuum experiment took until after lunch. The first vacuum test was undertaken with the FPGA board, the two different cameras and one IMU. The test was successful, the FPGA worked fine over the 10 minute test time and the cameras and IMUs had no indication of damage. The set-up for the second test, that inherent almost the entire electronics took longer than expected. At closing time, the Suaineadh team arranged the electronics in the vacuum chamber but the measurements taken showed unusual readings even without applied vacuum. At the end of the day, the team had to postpone the test because the workshop was closing.
The Suaineadh team is hopeful that for Monday’s thermal test, the mistake will be found and it can be preceded as planned. The next vacuum test is scheduled in three weeks from now. The Suaineadh team wants to thank Robert Dawson and Tom McCanny of the physics department for their help and advice during the vacuum test; it would have not been possible without them.
Monday, 5 September 2011
Sunday, 4 September 2011
Tuesday, 30 August 2011
Another productive Integration Week day is coming to a close for the Suaineadh team, todays work was primarily focused on obtaining measurements from the Inertial Measurment Units with the FPGA board and work on the CPU board. New brackets were also designed which will be mounted in CHAD for a vibration test possibly tomorrow.
A first test of the daughter release mechanism with the spring-pyro cutter assembly was carried out as well (see video below). Everything worked exceptionally well at this test.
Monday, 29 August 2011
Today began early when Thomas picked up Jerker and Adam from the hostel to show them their way to the University of Glasgow. The whole morning was then spend to figure out the best set-up to arrange the different electronic components in CHAD (Central Hub And Daughters). After this was established, Adam and Jerker where working on assembling the electronics for a first functionality test while Malcolm, Johannes and Thomas where dealing with the issue on how to mount the electronic components inside CHAD. At the end of the day we even managed it to take a picture with one of the cameras :). For tomorrow, it is planned to manufacture the cables between the different subsystems and fabricate the brackets to mount the components inside CHAD.