The wireless system for remote measurement of tilt measures the tilt angles of an object with respect to the local g-vector and communicates the measurements toward a mobile device able to display them or to transfer them further to a PC or to a PDA. A low cost implementation solution is presented, with references to both the hardware platform and to the main ideas behind the algorithms present in the software. Higher versatility is achieved through avoidance of the need to calibrate the sensor to the local value of the g acceleration, using algorithms in which this value does not appear in the computation process
This paper presents a low cost environment for teaching and experimenting current based testing techniques. An original hardware platform built around and USB communication capable microcontroller together with a set of software applications were developed. This environment allows construction of IDDQ signature collections and experimenting of testing methods based on analysis of IDDQ signature. It also permits to study the setups appropriate for built-in current sensor based techniques for analog or digital circuits. Real-time data exchange with MATLAB is provided for experimenting methods of fault detection and diagnosis based on the analysis of IDDT waveform (wavelet based analysis, spectrum, etc.)
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