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LabVIEW: based Advanced Instrumentation Systems

Книга LabVIEW: based Advanced Instrumentation Systems


Автор: S.Sumathi, P.Surekha
Название: LabVIEW based Advanced Instrumentation Systems (Современные контрольно-измерительные cистемы на основе LabVIEW)
Издательство: Springer
Год: 2007
ISBN: 3540485007
Страниц: 631
Язык: English
Формат: PDF
Размер: 53,2 МБ
Качество: отличное
Современные контрольно-измерительные cистемы на основе LabVIEW
LabVIEW используется в системах сбора и обработки данных, а также для управления техническими объектами и технологическими процессами. Идеологически LabVIEW очень близка к SCADA-системам, но в отличие от них в большей степени ориентирована на решение задач не столько в области АСУ ТП, сколько в области АСНИ (АСНИ -- Автоматизированная Cистема Научных Исследований).
Information is a valuable resource to an organization. User-friendly, computer-controlled instrumentation and data analysis techniques are revolutionizing the way measurements are being made, allowing nearly instantaneous comparison between theoretical predictions, simulations, and actual experimental results.
This book provides comprehensive coverage of fundamentals of advanced instrumentation systems based on LabVIEW concepts. This book is for those who wish a better understanding of virtual instrumentation concepts, its purpose, its nature, and the applications developed using the National Instruments LabVIEW software.
Organization of the Book
The book starts with the introduction to virtual instrumentation and covers in detail on the advanced virtual instrumentation concepts, techniques, and applications.
– Chapter 1
presents an introduction to virtual instrumentation concepts, architecture of a virtual instrumentation system and the role of various components in the architecture. It introduces the concept of distributed virtual instrumentation systems and conventional virtual instrumentation systems. The advantages of virtual instrumentation is discussed and compared with the conventional virtual instrumentation systems.
– Chapter 2
provides an overview of virtual instruments such as the front panel and the block diagram in virtual instrumentation software, Lab-VIEW. It discusses the menus used by the virtual instruments, ‘G’ Programming concepts, Data flow model in the block diagram, and the data types and its representation. The VI libraries and creation of a SubVI are also investigated here.
– Chapter 3
describes the structures available in LabVIEW such as For loop, While loop, Case structures and Sequence structure. This chapter also addresses issues related to arrays, clusters and formula node. Besides these aspects, data displaying elements on the front panel such as waveform charts, waveform graphs, XY graphs, and intensity plots are also illustrated with suitable examples.
– Chapter 4
deals with the components of a typical measurement system, origin of signals and the various types of signal acquiring devices such as sensors and transducers. The concepts of signal conditioning and the SCXI, a signal conditioning and front end fore plug in DAQ boards are also discussed. The output of the sensors are in analog form, hence to process them analog to digital converters are used. Conversions back to analog signals are accomplished using digital-to-analog converters.
– Chapter 5
describes the operation and characteristic feature of serial communication devices such as 4–20, 60mA current loops along with the RS232C standard. The IEEE standard GPIB is also detailed in later part of this chapter. VISA, which is a high level API is capable of controlling VXI, GPIB, or Serial instruments is also delineated.
– Chapter 6
focusses on the most common and latest PC interface buses such as USB, PCI, PXI, PCMCIA, VXI, and LXI. Modern computer buses can use both parallel and bit-serial connections, and can be wired in either a multidrop or daisy chain topology, or connected by switched
hubs.
– Chapter 7
touches the aspects related with signal grounding and digital I/O techniques. The approach of data acquisition in LabVIEW is elaborated with the DAQ components and the Hardware and Software configuration.
– Chapter 8
encompasses the operation and characteristic features of data transmission such as pulse codes, analog and digital modulation, wireless communication, RF analyser, distributed automation, and SCADA. Data transmission plays a very important role in all kind of digital equipments as it is the responsibility of these devices to transmit the data without being lost.
– Chapter 9
elaborates on the current trends in instrumentation such as fiber optic and laser instrumentation. The various types of fiber optic sensors including voltage, pressure, stress, temperature, and laser sensors including velocity, distance, and length are also discussed. The later sections of this chapter presents on the concepts of smart transmitter and CASE.
– Chapter 10
presents the recent approaches of LabVIEW in Virtual instrumentation with application examples in the areas of instrumentation, control systems, power systems, and robotics.
– Chapter 11
illustrates the application examples based on LabVIEW in the areas of communication, networking, artificial intelligence, and biomedical instrumentation.
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