International Scientific Journals
of Scientific Technical Union of Mechanical Engineering "Industry 4.0"

Pneumatic vane motors are important actuators in industry, their optimization is difficult without e best mathematic model and computer simulation. In this article we presents a mathematical model for pneumatic vane type motors, construction of a simulation program associated with constructive engine parameters, experimental confirmation , and pneumatic motor performance optimization based on this model. The article begins with the description of the working principle of the vane type pneumatic motors, the geometric parameters that characterize it. The set of mathematical model equations consists in: the equations of geometry, the equation that describe the rotating moment, and equations expressing the mass flow into the motor. For the construction of the simulation program we have used the programming language of the G type LabView. Matching the results obtained from the simulation with the measured ones experimentally indicate that the built mathematical model is accurate and can be used to optimize pneumatic motors.

A methodology and results of experimental researches of the automated installation for determination of geometric parameters of eggs, based on vision systems, using software LabVIEW and Vision Assistant, is considered in the paper. The installation provides improved performance and accuracy of the measurement of geometrical dimensions and determination of the form coefficients of the eggs.

The principle of operation of the automated installation is based on non-contact method of measuring large and small diameter, area and perimeter of the eggs, as well as calculation of the values of form coefficients and comparing them with the fluctuation limits of the measured parameters. The basic technical parameters of the automated installation are accuracy of geometric parameters determination, image processing time and performance. Experimental researches were carried out by three stages: an estimation of geometrical parameters measurement accuracy; determination of measurement productivity of eggs geometrical parameters; determination of productivity of eggs division into two categories (relevant and irrelevant to the form requirements of the standard). The obtained experimental results give reason to consider that the measurement accuracy of the linear dimensions of eggs, using the automated installation, meets the technological requirements. Automated installation enhances 4.5 times the labour productivity, spent on measurement of parameters of eggs. The accuracy of separation of eggs into categories, based on the their form using the automated installation, depends on the time, which operator needs for the correct reaction on the signal of the virtual instrument indicator and is equal to 15% at productivity 1,800 eggs per hour and 5.0% at productivity 1200 eggs per hour.

The article describes the results of analysis of the two acoustic electronic resonators performed using the scanning probe microscope and the software developed in the graphical integrated development environment LabVIEW with the machine vision module NI LabVIEW Vision. The most important surface parameters were measured and analyzed, and the corresponding conclusions were made regarding possible defects and compliance with the reference performance indicators of the two resonators.

В статье рассматриваются принцип работы, методика и результаты экспериментальных исследований автоматизированной установки для определения геометрических параметров клубней картофеля на базе системы технического зрения с использованием программного обеспечения LabVIEW и Vision Assistant. Установка обеспечивает повышение производительности и точности процесса измерения геометрических размеров и определения коэффициентов формы клубней картофеля. Принцип работы автоматизированной установки основан на бесконтактном методе измерение длины и ширины, площади и периметра продольного сечения клубня картофеля, а также вычисление значений коэффициентов формы и сравнивание их с допустимыми пределами колебания измеренных параметров.