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Dynamics and Strength of Machines
Article . 2018 . Peer-reviewed
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Measuring the velocity and length of the seamless pipe at the side surfaces

Authors: Vasilchenko, V. F.; Lomakin, A. N.;

Measuring the velocity and length of the seamless pipe at the side surfaces

Abstract

This work is devoted to the development of contactless measurement of the speed and length of seamless pipes, moving unevenly, at the stage of drawing and flashing the workpiece, heated to a temperature of about 1200 ° C. The radio wave method is used to measure the speed and length, because due to the peculiarities of the technological process, the high gas content of the shop atmosphere, a large amount of metal dust, high temperatures, is severely limited, and in some cases it is impossible to use contact, optical and ultrasonic methods for measuring speed and length . The use of the transmitting module with a frequency of 60 GHz limits the influence of the devices on each other and reduces the hardware error to the level of half the wavelength, and the use of an analog signal block allows software gain control and filtering of the received signal, taking into account the level of external noise and the speed of the tubes. The method of measuring speed and length along the side surface reduces the noise level and improves the measurement accuracy due to the constant distance to the object being measured. The signal conditioning module leads the signal levels of the sensors of the beginning and end of the pipe to the level of the TTL with which the analog-to-digital converter operates. The use of the USB-6009 type A / D converter allows you to convert analog signals to digital signals with a frequency of more than 20 KHz, which is quite enough to measure the speeds of movement on reduction mills. The LabVIEW graphical programming software package automates the process of calculating speed and length, facilitates visualization of measurement results from 10 pipes, simplifies reconfiguration of the meter to a different pipe mix and allows you to combine meters from several mills into a single system with a database of manufactured products.

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Keywords

эффект Доплера, side surface, боковая поверхность, обработка сигналов реального времени, Doppler effect, position sensors, Скорость; длина; эффект Доплера; LabView; аналоговый сигнал; погрешности измерений; датчики положения; боковая поверхность; обработка сигналов реального времени, Speed; length; Doppler effect; LabView; analog signal; measurement errors; position sensors; side surface; real-time signal processing, аналоговый сигнал, analog signal, LabView, real-time signal processing, датчики положения

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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