converter

Development of the 3d Premises Models Converter From the Sketchup Into the Catt-acoustic System

The article proposes a method for converting object geometry files from the SketchUP system into the Catt-Acoustic system. The proposed method has made it possible to accelerate the development of the premises models for their further acoustic analysis in the Catt-Acoustic system and to automate the process of determining the acoustic properties of the materials used in these premises.

DIFFERENTIAL TEMPERATURE SENSOR ON THE INTEGRATING SIGNAL CONVERTER BASIS

The work is devoted to the problem of signal transducers of high-sensitivity differential temperature sensors. The conducted  studies  have  shown  that  the  scheme  of  the  signal  converter with  the  stabilization  of  the  total  emitter  currents  of  a transistors pair is characterized by a combination of high sensitivity and stability of the steepness of a transformation function. In particular,  as  compared  to  the  circuit with  the  stabilization  of  the  collector  current  of  a  reference  transistor,  the  instability  of steepness is reduced 20-fold.

Improvement of the Ecological Safety of Road Transport in the Use of Alternative Fuel and Exhaust Converters

The aim of the research was to reduce ecological danger caused by vehicles through the use of combined fuel and improved designs converters of exhaust gases. The use of obsolete structures of a catalytic analyzer on cars and the provision of periodic purging of catalytic units can significantly reduce soot emissions without making changes to the design of the engine. It was established that the use of a mixture of diesel fuel with biofuels (made involving waste) reduces the toxicity of exhaust gases by 30–35 % and saves hydrocarbons.