The paper presents assumption for a microprocessor measurement-control system (MMCS). For synthesis this system the Petri net was used. On the basis of the analysis of the operation of MMCS there were formed sets of elementary events and conditions defining when particular events could take place, or conditions resulting from a given event. On this basis a Petri net for MMCS was worked out. Using formally prepared specification of the task, a general idea of software was worked out. For application idea of software is used of the SFC language for PLC controllers.

This paper presents a processing formula of an inductive transducer for conductivity measurements of conducting materials. On the basis of this formula, an analysis of metrological properties for a flow version of the transducer has been performed. This type of the transducer consists of a coil wound round an insulating pipe of which – coaxially with the coil – a cylindrical sample of investigated material is placed. The aforementioned processing formula of the transducer has the form of a dependence between – on the one hand – the changes of impedance observed at terminals of the coil and – on the other hand – conductivity of the material of the sample, geometrical structure of the transducer and frequency of power supply. This formula allows us to optimize the design of the transducer. The advantages resulting from theoretical analysis have been demonstrated in practical experiment carried out by means of digital measurement system.

The paper presents a method of determining the quality of adhesion based on the analysis of the supersonic wave driven by the Dirac potential impulse. Analysis of the response signal by means of linear prediction coding assumes similarity between generating speech in the vocal tract of the larynx and generating the response of the steel anchor to Dirac impulse function. The model of the vocal tract used in the analysis of voiced sounds by LPC was used for the analysis of the response signal of the steel anchor driven by a train of impulses. The purpose of this research is the analysis of reflection coefficient and residue and their relations with physical parameters of anchor adhesion. Detection of clear interrelations between these two values will confirm the thesis that this method of signal analysis by means of LPC is useful in verification of the quality of steel anchor adhesion in rock mass.

Many have observed that measurement, knowledge generation and advancement are companion activities. The evidence for this assertion comes from sources over the long history of mankind. Better understanding of these connections appears to be able to yield advances in knowledge generation systems. Current understanding of the meaningful nature of measurements lags way behind other aspects and is a major area needing attention by use of multiple styles of thinking found in both the hard and soft sciences. Internet messaging has opened up new horizons in collection, storage and dissemination of measurement knowledge. The state of understanding and trends of the relationships are reviewed in relation to measurement systems.

A simple and effective method of parameter identification for a linear model of aperiodic processes with known time delay is presented in this paper. The process time lag order and, subsequently, the remaining model parameters are determined from a few samples of the initial phase of the process step response.