Tag Archives: BiSon64

Maiden flight for BiSon64 is near

BiSon64 - fine sun sensor on Aether rocket - ready for lift-offToday, the students from Delft Aerospace Rocket Engineering (DARE) showed the Aether rocket to the public for the first time.

3.3m in length and intended to reach Mach 1.7 before the parachute system is deployed at some 6km height, the rocket is not only a technology demonstrator for the stratos III rocket to be launched later this year (that will try to break the student rocket altitude record) but also contains three BiSon64 sunsensors that will be used to calibrate the on-board gyro’s in real-time and thus avoid rotation of the rocket which could hamper proper parachute deployment.

Even THOR did not damage or senSOR

Today we finished pyroshock testing at the ISISpace THOR facility. THOR stands for Testing Hammer for extraOrdinary Rough environments. These tests were performed in frame of an ARTES 5.2 program called ITAR free extended temperature sunsensor.

3 BiSon74ET-RH sensors with two different builds were tested. These sensors went through thermal cycling and vibration testing before. In frame of this program the sensors saw 12 thermal cycles from more than +125C to less than -125C, followed by 30g sine and 40.2g random vibration tests. (al at ESTEC)

Today the test sequence was completed by administering 3 shocks of 3500g in all three directions.

Next to the BiSon74-ET-RH, the same test tests were also performed on two BiSon64 units to validate the latest configuration

As electrical tests showed that non of the units lost functionality and there was some time left in the program, ISIS agreed in doing some additional tests. This lead to a second set of tests performed on three sunsensors (1 from each batch of BiSon74-ET-RH sensors and one BiSon64) in which another 3 shocks in all three directions was administered but this time at 10.000g.

Sneak preview BiSon64-B

fine sun sensor - BiSon64-B (baffle for reduced albedo sensitivity, LEO, small satellites)This is a sneak preview of the BiSon64-B and the associated transport package.

The sensor consists of a standards BiSon64 to which a small baffle is added to reduce the influence of albedo signals originating from outside the measurement field of view.

Adding less than 5 grams to the sensors the baffle allows to increase the accuracy of the sensors significantly if albedo signals or reflections from structural parts are present.