S.E. Haque

Bio: S.E. Haque is an academic researcher from Sir Syed University of Engineering and Technology. The author has contributed to research in topics: Split-radix FFT algorithm & Discrete-time Fourier transform. The author has an hindex of 1, co-authored 2 publications receiving 9 citations.

Virtual Remote Electronic Laboratory

Abstract: In this paper the development of a Virtual Remote Electronic Laboratory and its implementation using National Instrument's LabVIEW is discussed. The techniques presented in this paper are general purpose and can be used to develop any laboratory that requires simulation, hands-on experience, and the ability to run the laboratory over a network of computers. As a case study a digital signal processing course taught in the Department of Electronic Engineering at Sir Syed University of Engineering and Technology is selected. The practical implementation of this laboratory using LabVIEW is also discussed in this paper. The main advantage of this laboratory is that the students can perform the experiments of different subjects remotely through the Internet. Engineering education has always been dynamically interrelated with technology change. Educators and researchers worldwide are using National Instrument's products to automate routine tasks, accomplish new objectives, replace outdated and expensive equipment, and demonstrate students the potential of high technology. Physical systems are modeled and manipulated in software, and realized in hardware to demonstrate what differences may occur with real-life applications. By solving problems using software-based virtual instruments and actual hardware, students gain an appreciation of the interaction of process instrumentation and computers.

An interactive speaker testing system based on DFT

Abstract: The paper discusses the analysis of a signal using fast Fourier transform (FFT). Fourier analysis is a mathematical technique based on decomposing signals into sinusoids. The discrete Fourier transform (DFT) is the technique used with periodic digitized signals. There are several ways to calculate the discrete Fourier transform, such as solving simultaneous linear equations, the correlation method and fast Fourier transform (FFT). While FFT produces the same result as the other approaches for calculating DFT, it is incredibly more efficient, often reducing the computation time by about three hundred times as compared to other DFT techniques. To demonstrate the practical aspects of fast Fourier transform, a speaker testing system is developed and different speakers are tested for buzzing. Buzzing is a common problem in speakers. To detect a speaker for buzzing, an interactive PC based system has been developed, and, using this system, a speaker can be easily analyzed. Also, by using this system, the testing time is greatly reduced and the test data can be saved in the form of a graph of frequency versus % total harmonic distortion (THD). Both the hardware and the software for this system are discussed.

Overview on Development of Remote Teaching Laboratories: from LabVIEW to Web Services

Abstract: For last years, a large number of universities, have been focusing their attention on the opportunity of making students capable to observe experimental activities, from their home and at any time, through Internet. The realization of remote laboratories for engineering disciplines, in particular for a measurement course, presents further problems, since it is required that students interact with remote circuit and handle measurement instruments. The crucial task is, hence, to implement Web/Internet-enabled applications that can be fully controlled and monitored from remote locations. There is a wide variety of solutions enabling the remote control of measurement instrumentation; each one is characterized by its peculiarities, advantages, and drawbacks. In the paper an overview on the most adopted technologies is performed. Particular attention is paid on Web Services technology that proves to be a general solution, suitable for each type of application.

Intranet-Based Real-Time Laboratory A Case Study in Electrical Engineering

Abstract: The goal of this paper is to design, develop and demonstrate virtual instrumentation (VI) system that can be used to monitor and remotely control a real-time laboratory experiment. The system has been interfaced with a computer, also used as a server, and the virtual instrumentation has been developed in LabVIEW environment. An important feature of this study is that, the virtual instruments operate on real-time basis collecting, processing, analyzing and displaying data as the events take place. Furthermore, this study concentrates on the problem encounter on the system-computer interface by using a host of interfacing techniques including data acquisition card and parallel and serial interface techniques operating simultaneously. It has been shown that the laboratory experiment can be conducted by the intranet of the enterprise from any location. The problems related with the use of internet due to firewall and others are under investigation

E-learning in instrumentation and measurement courses

Abstract: E-learning is the one possible evolution of traditional teaching techniques and is becoming a mature technology. Several commercial suites are available to author multimedia courses either to be distributed in physical form (e.g. on CD or DVD) or to be used on-line. However the application of these suites to the instrumentation and measurement courses and in general to courses that require students to learn the use of real devices is difficult and sometime useless. In this paper, some peculiar aspects of the instrumentation and measurement courses are discussed, focusing on the impact of e-learning techniques in laboratory activities. Practical hints coming from the authors' experience in several years of in-the-field trials are reported and discussed.

Remote RF and Baseband Video Measurement Laboratory Based Upon Open-Code Software

Abstract: An application based on open-code source resources is developed to allow remote operation of test instruments over the web. The application was deployed using LINUX, JAVA, and CamServ and shows potential use as a didactic tool, as well as in laboratories dealing with different types of test instruments. The tool is an alternative to commercial applications used with the same purposes. Specification and development issues are described, as well as testing and validation schemes.

The low-cost instrument with LabVIEW And DB25

Abstract: The paper presents the development of a low-cost virtual instrument with LabVIEW. LabVIEW is a powerful development software for signal acquisition, measurement analysis, and data presentation, the flexibility of a programming language with expensive hardware. Because of high-cost, poor engineering students can't learn useful of communication between software and hardware. To help them, the low-cost instrument with LabVIEW occurs. DB25 is a familiar interface because it is the standard for printers and modems. Many instruments have an DB25 interface for connection to computers. Many computers have a DB25 interface port. Both the computer and the instrument need to have the same interface between them. DB25 is generally the least-expensive interface since no additional hardware is needed in the computer. The techniques of basic instrument showed in this paper can be used to apply to be satiable application in engineering projects. Moreover, These specially techniques make instruments as simplify clarify and economize.