Design of compressor ratio power tester with condition protection function based on virtual instrument

2008 ◽  
Author(s):  
Qunfeng Niu ◽  
Lia Wang ◽  
Junren Huang
Keyword(s):  
Virtual Instrument

Virtual instrument as a tool for teaching power quality

2009 ◽  
Vol 1 (07) ◽  
pp. 842-847 ◽  
Author(s):  
Vladimir Dimcev ◽  
Zivko Kokolanski ◽  
Cvetan Gavrovski ◽  
Mare Srbinovska
Keyword(s):  
Power Quality ◽  
Virtual Instrument

Virtual instrument designed for data acquisition

2020 ◽  
Vol 65 (1) ◽  
pp. 179-186
Author(s):  
Mihaela Dorica Stroia
Keyword(s):  
Software Development ◽  
Data Acquisition ◽  
Virtual Instrument ◽  
Virtual Instrumentation ◽  
Design And Implementation ◽  
Adequate Design

Current software development directions open up a world of possibilities, especially in the engineering field. Present paper is meant to highlight the advantages and in particular the ease of using virtual instrumentation facilities, with a proper and adequate design and implementation of desired instrument. In this idea we bring into discussion a design for virtual instrument which can be used for data acquisition that can be stored for further simulations according to the needs required by the process in discussion.

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

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.

Wavelength readout system constructed of fiber Fabry-Perot tunable filter and virtual instrument

2010 ◽  
Author(s):  
Chengang Lü ◽  
Ruifeng Zhang ◽  
Pengfei Cheng ◽  
Kejia Li ◽  
Xing Wu ◽  
...  
Keyword(s):  
Virtual Instrument ◽  
Tunable Filter ◽  
Readout System ◽  
Fabry Perot

Ultrasonic Imaging System Based on Virtual Instrument

2013 ◽  
Vol 663 ◽  
pp. 616-620
Author(s):  
Yu Gong ◽  
Yue Gang Hu ◽  
Guo Rong Song ◽  
Cun Fu He ◽  
Bin Wu
Keyword(s):  
Cross Section ◽  
Virtual Instrument ◽  
Imaging System ◽  
Complex Structures ◽  
Non Destructive Testing ◽  
Destructive Testing ◽  
Bulk Metal ◽  
Instrument Technology ◽  
Control Devices ◽  
Non Destructive

An imaging system of ultrasonic detection is presented for non-destructive testing (NDT) of complex structures by using virtual instrument technology. The control devices for C-scan as well as for imaging system are designed and manufactured. In the coarse scan mode with the scan step of 1 mm, the system can quickly give an image display of a cross section of 80 mm (L) ×60 mm (D) by one measurement. In the refined scan model, the system can show a refine image of the coin. All experiments on coin, bulk metal, and other forms of specimen verify the efficiency of the proposed method. The experimental results are accurate and reliable.

scholarly journals Novel Control Platform Development for PMLSM Drive System Based on Virtual Instrument

2013 ◽  
Vol 416-417 ◽  
pp. 530-535
Author(s):  
Jian Xun Jin ◽  
Wei Xu ◽  
Yan Chen ◽  
You Guang Guo ◽  
Jian Guo Zhu
Keyword(s):  
Data Acquisition ◽  
Virtual Instrument ◽  
Digital Signal Processor ◽  
Pulse Width Modulation ◽  
Digital Signal ◽  
Drive System ◽  
Signal Source ◽  
Computational Capability ◽  
Data Acquisition Card ◽  
Platform Development

A novel control platform for the permanent magnet linear synchronous motor (PMLSM) drive system has been built up based on virtual instrument (VI) and relavant data acquisition card (DAQ) devices. In the traditional control platform, it mostly depends on digital signal processor (DSP), which needs a lot of time to further develop the interface between the personal computer (PC) and operators, and its computational capability is not strong than computer. To overcome these shortages, a novel control platform is presented on the base of one PC, one LabVIEW, and one multifunctional data acquisition card. Firstly, a space vector pulse width modulation (SVPWM) signal source is executed in the VI. Then in order to improve the precision of control system, the field oriented control (FOC) is proposed for the PMLSM. Finally comprehensive experiments verify with relative simulations.

Sign in / Sign up

Export Citation Format

Share Document