Microprocessor-based inductive measuring device

A load profile measuring device takes information about the power consumption without modification of the power lines. Using current transformers, the current is measured in each of the phases and the active power consumed by the user is determined. The developed software for it allows for simultaneous recording at different user selectable timing intervals. The device is designed and tested in two facilities - a School and a Farm.

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UNIFORMITY MEASUREMENT METHOD FOR CURVED DISPLAY USING IMAGE LUMINANCE MEASURING DEVICE

PROCEEDINGS OF THE CONFERENCE AT THE CIE MIDTERM MEETING 2017 23 – 25 OCTOBER 2017, JEJU, REPUBLIC OF KOREA ◽

10.25039/x44.2017.po36 ◽

2018 ◽

Author(s):

Youngseok Seo ◽

KyungHwan Choi ◽

DongHwan Jung ◽

SinMyung Choi ◽

SeungHyun Cho

Keyword(s):

Measurement Method ◽

Measuring Device

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DESIGN OF THE VIRTUAL DEVICE FOR THE SIGNAL SPECTRUM CALCULATION IN THE LABVIEW ENVIRONMENT

Visnyk Universytetu “Ukraina” ◽

10.36994/2707-4110-2019-2-23-12 ◽

2019 ◽

Author(s):

Tossenko O.M.

Keyword(s):

Virtual Instrument ◽

Spectral Characteristics ◽

Spectral Composition ◽

Automated System ◽

Signal Spectrum ◽

Measuring Instruments ◽

Specific Information ◽

Measuring Device ◽

Virtual Device ◽

Graphical Tool

The development of measuring instruments requires a specialist to know the principles of operation of advanced measuring systems. This article describes guidelines for creating a virtual appliance in LabVIEW. LabVIEW (Laboratory Virtual Instrument Engineering Workbench) is a graphical application programming environment used as a standard tool for measuring, analyzing their data, further ma naging devices and objects under study. LabVIEW language is not like other programming languages. It does not create a program, but a virtual tool, designed not only for the simulation of certain processes, but also for the management of hardware and the study of real physical objects. The article deals with the task of designing application software for a specific information-measuring device, analyzes the capabilities of the LabVIEW environment for spectral analysis of various signals, outlines the basic principles and techniques of programming within the framework of the LabVIEW graphical environment during the basic stages of development. The procedure for creating a virtual device is described, which allows to evaluate the spectral composition of the signals, presents a graphical code of execution (diagram) to the program and a graphical tool interface of the virtual device. A number of basic elements used to develop the program are described. The simplicity of the graphic designs, the ease of installation on the field of the program, the clarity and readability of the program — all of which makes LabVIEW preferred over other languages of programming. In most cases, the experiment is the only source of reliable information. And the result is achieved much faster than the methods of "pure" theory. The article substantiates the effectiveness of using a development tool that allows to obtain a software product and ensure the fulfillment of all the basic functions of an automated system. Developing a software algorithm for calculating statistical parameters will help engineering students understand the order of determining spectral characteristics and their place in the structure of experimental research.

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