The paper presents an upgraded version of an application of MATLAB web server, one of MATLAB toolboxes, for teaching/learning some selected measurement algorithms important in processing discrete-time signals in measurement. The original version is described in [1] and [2]. The topics included are DFT/FFT (demonstration of DFT basic properties and DFT application in spectrum analysis and detection of week tones close to a strong tone), FIR filters (including the important moving average filter), basic IIR filters and some basics of stochastic signal processing in time domain and amplitude domain including finding SNR using correlation analysis. This upgraded version of MATLAB web server application is currently replacing an old one in teaching signal processing at Department of Measurement of the CTU in Prague, Faculty of Electrical Engineering, for both the students studying in Czech and (mostly Erasmus students) in English.

The paper presents the impedance measurement method using a real-life step pulse as a perturbation signal and Laplace transformation as a tool for analyzing the response of the object under test. The method is addressed to explore different technical object (like anticorrosion coatings, gas sensors, ceramics, dielectrics biological tissues etc.) when the measurement time cannot be long. The presented method is known, but is not very popular because of some limitation. The paper presents the influence of the limitations on the accuracy of the equivalent circuit parameters identification.

The aim of this paper is to show a determination method for mechanical shocks, using as sensing element an analogical Hall effect transducer. In the first part of the paper there will be enunciated the used physical principle, mentioning the conservation laws of mechanical energy and in following part we will describe the experimental setups and the behavior of the implemented captors. We will also analyze the factors that can generate errors or they can disturb the measurement process. There will be presented the sensors as well as a implementation method of the sensor in complex integrated parts which contain the signal processing circuits and the sensing element. We can consider this transducers not a replacement to the present methods (piezoresistive, tensometric, optical, etc), but a viable alternative which is easy to implement.

The paper presents modified CNLS impedance spectrum fitting method of parameter identification of technical objects. The number of test frequencies is reduced to the number of parameters and the test frequencies are set according to various criteria. As a test object, the model of anticorrosion coating has been chosen. The simulated identification results are discussed in terms of identification measurement time reduction and method accuracy.

The paper present a system for management building based a compatible PC computer that communicates through a RS-485 serial protocol with the development board with microcontroller. The development boards are placed on the level of each building floor. These development boards take the signal from sensors placed on the level of each room and achieve the command function based on an independent algorithm, commanding by case the corresponding central heating or cooling plant.