Capacitance Control on the Wire Production Line

Abstract

Abstract. The paper presents technical implementation of the electricalcapacitive method to perform in-process measurement of the capacitance per unit length of a single-core electric wire. The design of the electrocapacitive measuring transducer is proposed. The block diagram of the device CAP-10 developed to implement the proposed method is presented. The appearance of the device CAP-10 is showed, and its operating principle is described. It is shown that the change in water conductivity has a significant impact of the measurement result of the wire capacitance per unit length. The techniques to offset from the impact of water conductivity variation on measurement results are proposed. The technique of the device CAP-10 initial adjustment is proposed. It provides the desired function of the output signal transformation. The technique of the "operating" adjustment to correct measurement results through systematic measurement error elimination is offered.

Detection of insulation defects in the wire through measuring changes in its capacitance

“…The length of the CAP-10 measuring zone is similar to that of the ECMT measuring electrode (20 cm) [22]. Note that the capacitance change occurs when the defect-containing area is getting in and out of the CAP-10 measuring zone.…”

“…The physical configuration of CAP-10 is showed in Figure 2 [22]. ECMT is a tubular electrode immersed in cooling water of the extrusion line together with the test wire [7,23].…”

Ways of Efficiency Improvement of the Organization of Students’ Independent Work with Computer Technologies Usage

“…Other researchers consider influence of the computer on pupils' behavior when training them by means of game technologies [8,9], for estimation of knowledge [10][11][12][13], as an assistant for development of discipline on remote access, for exchange of knowledge on social networks [14,15], when training mentally retarded pupils, students with the low level of knowledge [16,17], etc.…”