OpenLab attaches great importance to suggestions of design and development improvements. Therefore, every measurement tool has an integrated feedback tool which is divided into an individual feedback and a questionnaire, illustrated in Figure 1.
The questionnaire contains general questions about the utilized measurement application, usability, and developed hardware. The individual feedback section allows the user to mention specific suggestions or problems which are not covered by the questionnaire. Therefore, problems and bugs can be eliminated efficiently. Currently, only the OpenLab oscilloscope was handed out for students and lectures. The received feedback contained, iter alia, improvement suggestions regarding the implementation of a detailed help menu, and the integration of additional measurements, such as FFT (Fast Fourier Transformation). Furthermore, students and lectures recommended to improve the hardware design, because the design suffered from too high noise at low input voltage levels.
Thus, the help content was extended with detailed described pictures and an additional media center. The media center provides two videos to ensure an easier way to get started with the measurement tools. The implementation of the FFT was necessary, because the course ”Signal Processing & DSP-Programming” at the university needs to analyze the measured signal in the frequency domain.
Moreover, the hardware was redesigned to reduce the noise level. The improvements which were applied to the OpenLab Oscilloscope are a good example, how the mentioned integrated feedback tool helps to improve every measurement application and hardware of the Signal Toolkit. Within the ongoing and upcomming academic years, various feeback evaluations will help to improve the OpenLab Signal Toolkit.