Development of an electromagnetic device for studying the electrophysical properties of agricultural products

2021 ◽  
Vol 3 (44) ◽  
pp. 124-128
Author(s):  
Aleksandr S. Gordeev ◽  
◽  
Roman S. Singatulin
Keyword(s):  
Experimental Data ◽  
Output Signal ◽  
Block Diagram ◽  
Agricultural Products ◽  
Research Purpose ◽  
Electrophysical Properties ◽  
Oscillatory Circuit ◽  
Biological Objects ◽  
Electromagnetic Device ◽  
Lc Circuit

The problem of control and quality of agricultural products is relevant for agro-industrial production. To determine the quality indicators, for example, milk, various indirect methods are used, but they are complex, some require special preliminary preparation of the sample. We need methods that will meet the following requirements: simplicity, speed and mobility. The identification of the electrophysical properties of biological objects can become the basis for the development of an electromagnetic method that will meet the above conditions. The article considers processes based on a change in the voltage (output signal) of a parallel oscillatory circuit in which an inductive cell contains the studied agricultural products. (Research purpose) The research purpose is in developing a device for determining the electrophysical properties of biological objects, analyzing the results of the study, obtaining the dependences of the output signal of the resonant amplifier on the frequency of the generator. (Materials and methods) The article presents studies of the resonant processes occurring in the simplest parallel oscillatory LC circuit. The article analyses the effect on the output parameters of a parallel oscillatory LC circuit when its inductance changes by placing various substances in an inductive coil. (Results and discussion) The article presents a block diagram of an electromagnetic device for determining and studying the electrophysical properties of biological objects. The block diagram is implemented directly into an electromagnetic device. Authors created a program in the MATLAB package for processing the experimental data. Based on the results of processing, authors got frequency dependencies for various biological objects of agriculture. (Conclusions) The processing of an array of experimental data will allow us to determine the functional, statistical and logical dependencies between the output and input values of the presented device.

The Structure of the Exciter of a Dielkometric System for Research of Biological Objects Using an Adaptive Interference Canceller

2020 ◽  
Vol 67 (2) ◽  
pp. 27-31
Author(s):  
Aleksandr V. Sapryka ◽  
Roman S. Singatulin
Keyword(s):  
Dynamic Characteristics ◽  
Output Signal ◽  
Adaptive Filters ◽  
Transfer Functions ◽  
Basic Structure ◽  
Research Purpose ◽  
Output Spectrum ◽  
Optimal Method ◽  
Biological Objects ◽  
Adaptive Compensator

An important task in the development of sources of electromagnetic vibrations used in the design of dielkometrical systems for biological objects is to reduce the level of interference of the electromagnetic vibrations source in the output spectrum. Methods for suppressing side components in the output spectrum conflict with the dynamic characteristics of the electromagnetic vibrations source, in particular, they do not meet the requirements for the tuning speed in the specified wave ranges. (Research purpose) The research purpose is in developing the basic structure of the exciter of the dielkometric system for the study of biological objects, allowing obtaining previously unacceptable values of suppression of the comparison frequency and its harmonics. (Materials and methods) Authors applied the compensation method to obtain the required spectral and dynamic characteristics of the electromagnetic vibrations source. The article sets the problem of adaptive noise compensation, which was solved using a quasi-optimal method, the method of the minimum of the average square error. (Results and discussion) The article proposes the basic structure of the exciter of the dielkometric system for the study of biological objects. It was shown that the adaptive method results in suppression of side components in the spectrum of the output signal source while maintaining the required speed. The spectral components of the output signal of the electromagnetic source were studied using a functional method. It was found that there is an effective convergence of the transfer functions of adaptive filters of the adaptive compensator of side components to the nonlinear transfer function of the corresponding orders of the dynamic system. (Conclusions) The article presents the developed structure of the exciter of the dielkometrical system using an adaptive compensator of side components, which allows to obtain previously unacceptable values of suppression of the comparison frequency and its harmonics. It was found that the use of this structure of the exciter will improve the dynamic characteristics of the dielkometrical system as a whole. It was found that the use of adaptive filters increases the speed of the exciter by 5-10 times.

ROTATION OF THE AXISIMMETRIC DIELECTRIC BODIES (DEB) IN ELECTRORHEOLOGICAL SUSPENSIONS (ERS)

1996 ◽  
Vol 10 (23n24) ◽  
pp. 2903-2915 ◽  
Author(s):  
ZINOVIY P. SHULMAN ◽  
VALERIY NOSOV
Keyword(s):  
Experimental Data ◽  
Electric Field ◽  
Rotation Speed ◽  
Electrophysical Properties ◽  
Engineering Applications ◽  
Dielectric Bodies ◽  
Electrorheological Suspensions

Consideration is given to rotation of nonconducting bodies in electrorheological suspensions. Experimental data are presented describing the effect of an electric field on the rotation speed as well as on rheological and electrophysical properties of ERS. The dependence of speed on temperature and the rotor geometry is considered in some detail. Two examples of engineering applications are presented.

scholarly journals UAV control hack system

2021 ◽  
pp. 35-41
Author(s):  
E. A. Adzhakhunov ◽  
O. V. Nikolaev
Keyword(s):  
Experimental Data ◽  
Global Positioning System ◽  
Block Diagram ◽  
Radio Channel ◽  
Alternative Solution ◽  
Positioning System ◽  
Global Positioning ◽  
Operation Algorithm

The paper presents an alternative solution to the problem of drone hacking over a radio channel and uses signal spoofing of a global positioning system (GPS, GLONASS). Within the framework of the study, block diagram and operation algorithm of the system were developed and experimental data were obtained.

scholarly journals Experimental research of the process of shock pulse transformation through biological objects of fixed geometric shape

1970 ◽  
pp. 30-35
Author(s):  
V Yakovlev
Keyword(s):  
Raw Materials ◽  
Experimental Studies ◽  
Geometric Shape ◽  
Agricultural Products ◽  
Successful Implementation ◽  
Biological Objects ◽  
Quantitative Characteristics ◽  
The Relationship ◽  
Qualitative Characteristics ◽  
Qualitative And Quantitative Characteristics

Successful implementation of agricultural products requires compliance with the requirements of standards to ensure its high quality, ensuring the technological process (production, processing, storage) with a sufficient level of quality characteristics of the initial raw materials, product quality control at intermediate and final operations. Such qualitative characteristics of products, particularly a fixed geometric shape, the degree of ripeness, presence and depth of the damage, it is not always possible to determine the external condition of the product (e.g., melons) without its destruction. To assess the qualitative and quantitative characteristics of agricultural products, various physical methods are used, of which a special place is occupied by the method of acoustic sensing, which consists in the fact that the properties of products (as biological objects) that determine the excitation and propagation of elastic vibrations are closely related to their anatomical structure and physical and biochemical characteristics, which in turn change during their vegetation when reaching the appropriate degree of ripeness. This material presents the results of experimental studies to establish the relationship between the parameters of the aftereffect of shock excitation of biological objects of plant origin of a fixed geometric shape with their qualitative characteristics, to determine the characteristics and their quantitative values, which in turn makes it possible to implement technical devices Express nondestructive control of qualitative characteristics of agricultural products.

scholarly journals Influence of Torsion on Matteucci Effect Signal Parameters in Co-Based Bistable Amorphous Wire

Materials ◽  
2019 ◽  
Vol 12 (3) ◽  
pp. 532 ◽  
Author(s):  
Tomasz Charubin ◽  
Michał Nowicki ◽  
Roman Szewczyk
Keyword(s):  
Magnetic Field ◽  
Experimental Data ◽  
Critical Current ◽  
Output Signal ◽  
Amorphous Wire ◽  
Digital Output ◽  
Magnetic Field Sensors ◽  
Amorphous Wires ◽  
Signal Parameters ◽  
The Wire

The Matteucci effect (ME) is one of the lesser-known magnetomechanical effects and is most prominent in bistable amorphous wires. It has some experimental applications—Matteucci effect-based magnetic field sensors are very easy to produce and have inherently linear, hybrid analog/digital output signal. The effect is still poorly understood, however, and although it relies on torsion of the wire to manifest, there is no available model, or much experimental data, which would quantitatively connect the ME with the sample twist. In this paper, experimental characteristics of ME signal parameters dependence on torsion in Co-based amorphous bistable wire are presented. The results hint at possible applications, such as rotation or critical current sensors, as well as the necessity of torsion control in the development of ME magnetic field sensors.

COMPLEX TECHNOLOGICAL SYSTEMS IN AGROINDUSTRIAL COMPLEX DEVELOPMENT

1970 ◽  
pp. 13-16
Author(s):  
V. А. Panfilov
Keyword(s):  
Computer Technology ◽  
Block Diagram ◽  
Agricultural Products ◽  
Industrial Complex ◽  
Technological Properties ◽  
Technological Systems ◽  
Organizational Conditions ◽  
Complex Development ◽  
Production Technologies ◽  
Agroindustrial Complex

The article is devoted to some aspects of creating very complex technological systems in the agroindustrial complex of Russia. The foreseeable developments of these systems are in the focus of attention, which allows them to be referred to agro-complexes for the mass production of basic types of food. The growing complexity of APC technologies is seen as a dialectical inevitability in their development, which simultaneously leads to a simplification of the functioning of all processes in the agro-complex. The range of issues under discussion includes the urgency and expediency of creating system technological complexes in the agroindustrial complex, their structure and structure, the system regularities of these complexes, as well as the issues of constant renewal through innovations that need to be planned. This concerns the ties of subordination and cooperation, the modernization of production technologies and processing of agricultural products, the introduction of new equipment and computer technology. The issue of transition to cognition of very complex technological systems is considered, which is connected with the development of methods for comprehension of new types of complexity and methods for its overcoming. The forecasted appearance of the system complex "Agrarian-food technology" in the form of a block diagram is described in detail, as well as the components of the expected effect of its functioning. The expediency of the requirements of processing industries to the technological properties of agricultural products is substantiated. The scientific and organizational conditions for the dynamism of the development of agro-industrial complex technologies are formulated.

INFLUENCE OF ILLUMINATION CONDITIONS ON THE MEASUREMENT OF OPTICAL TWEEZERS SYSTEM

2006 ◽  
Vol 20 (06) ◽  
pp. 659-666
Author(s):  
YUQIANG JIANG ◽  
HONGLIAN GUO ◽  
CHUNXIANG LIU ◽  
ZHAOLI LI ◽  
BINGYING CHENG ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Optical Tweezers ◽  
High Precision ◽  
Output Signal ◽  
Key Factors ◽  
Sample Cell ◽  
Biological Objects ◽  
Quantitative Measurements

In an optical tweezers system, the output signal of a photodiode quadrant detector and the temperature in a sample cell are two key factors for the quantitative measurements of mechanical properties of living biological objects such as cells, organelles and macro-molecules. In order to enhance the output of a quadrant detector and effectively control the temperature in a sample cell, the dependence of the temperature in the sample cell and the output of the quadrant detector for different illumination conditions are studied. The results show that appropriate illumination conditions can ensure both nearly constant temperatures in the cell and the desired output signal, which provides for the possibility of high precision and damage-free analysis of living biological objects.

False spectra formation in the differential two-channel scheme of the laser Doppler flowmeter

2018 ◽  
Vol 63 (4) ◽  
pp. 439-444 ◽  
Author(s):  
Denis Lapitan ◽  
Dmitry Rogatkin ◽  
Saydulla Persheyev ◽  
Konstantin Kotliar
Keyword(s):  
Laser Doppler Flowmetry ◽  
Output Signal ◽  
Block Diagram ◽  
Laser Doppler ◽  
Differential Amplifier ◽  
Laser Doppler Flowmeter ◽  
Doppler Flowmetry ◽  
Electrical Signals ◽  
Spectral Components ◽  
Doppler Flowmeter

Abstract Noise in the differential two-channel scheme of a classic laser Doppler flowmetry (LDF) instrument was studied. Formation of false spectral components in the output signal due to beating of electrical signals in the differential amplifier was found out. The improved block-diagram of the flowmeter was developed allowing to reduce the noise.

A Method for Measuring Pressure under Rotating Conditions

2013 ◽  
Vol 663 ◽  
pp. 522-527
Author(s):  
Deng Chao Li ◽  
Xiang Luo ◽  
Xu Cai
Keyword(s):  
Experimental Data ◽  
Centrifugal Force ◽  
Surface Pressure ◽  
Pressure Sensor ◽  
Rotational Speed ◽  
Output Signal ◽  
Functional Relationship ◽  
Sensor Output ◽  
Strain Type ◽  
Type Pressure

A method which can accurately measure surface pressure under rotating conditions is presented. Based on the calibration for strain type pressure sensor, a curve which shows the functional relationship between sensor output signal and actual pressure under different rotational speed is obtained; and the diaphragm deformation caused by centrifugal force can be neglected by the curve. Thus, the actual pressure can be acquired accurately. The factors which may cause errors on the experiment are analyzed. Moreover, the correctional method for the experimental data is attained.

scholarly journals GUI Design for Comparative Output Signal DFT and DTFT with LabVIEW

INSIST ◽  
2019 ◽  
Vol 4 (1) ◽  
pp. 210
Author(s):  
Dwi Astharini ◽  
Tsaura Aulia ◽  
Putri Wulandari ◽  
Rahmat Alamtaha ◽  
Rifqy Afisha
Keyword(s):  
Signal Processing ◽  
Fourier Transform ◽  
Digital Signal Processing ◽  
Virtual Instrument ◽  
Output Signal ◽  
Block Diagram ◽  
Digital Signal ◽  
Digital Form ◽  
Mathematical Technique ◽  
Labview Program

An application GUI (Graphical User Interface) is designed as a software simulation to compare the output signal of DFT and DTFT. DFT (Discrete Fourier Transform) and DTFT (Discrete Time Fourier Transform) are part of the digital signal processing. Digital signal processing is an analog signal processing method uses a mathematical technique to perform a transformation or retrieving information in digital form. One of the benefits of digital signal processing is to facilitate the representation of the signal, because the signal in digital form will be more visible, easily processed and has high accuracy. This GUI application designed using LabVIEW from National Instruments.  LabVIEW is a software graphical programming or a block diagram. LabVIEW program known as VI or Virtual Instrument. The input signal in this application is a square signal

Sign in / Sign up

Export Citation Format

Share Document