Finally, the response of the experiment is set to be the number of cycles necessary to produce a complete failure of the sensor. In order to verify if the sensors are still working after the tests, they are subjected to a shock. The shock testing machine, a Shinyei PST-300, is made of a pendulum, on the back of which the sample is fixed . The pendulum can be lifted at a certain angle and then released in order to hit a bumper placed at 0°, with a given kinetic energy. The bumper can be made of different materials in order to cover the range of 5 to 10,000g, with a 2% variation over reproducibility. The value of the acceleration set for those tests is around 4500g.

Test plan

A Hadamard matrix for 23 runs is obtained from Matlab by using the appropriate function. The names of the corresponding samples are indicated next to each line: