Download or read book PC based data acquisition using PCL 208 written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: DAQ (Data Acquisition) can be defined as the process of bringing a real-world signal, such as a temperature, pressure, voltage etc into the computer, for processing, analysis, storage or other data handling . A Physical occurrence represents the real-world signal you are trying to measure. In order to optimize the distinctiveness of a system in the terms of performance, handling capacity and cost, the relevant subsystem can be combined together. Analog data is usually acquired and renewed into the digital form for the principle of processing, transmission and display. Rapid advances in Personal Computer (PC) hardware and software technologies have made it easy and efficient adoption of PCs in various accurate measurement and in various complex control applications. A PC based measurement or control application requires conversion of real the world analog signal into digital form and transfer of this digitized data into the PC. A data acquisition system that performs conversion of analog signal to digital data and the digital data to analog signal is interfaced to a pc to put into practice the functions of a measurement and control instrumentation applications. In this project we have used the electromagnetic sensor to acquire the data of a magnetic disk angular velocity, which we have got in mili volts range. This has been further converted approximately into the range of 5 volt by using an operational amplifier of suitable gain (~30)and then rectified .We then converted the analog voltage into digital by using ADC 0804 and the processing part is done by using ATMEL89c51. In the second phase we have used the data acquisition card PCL-208 and 207 to interface the amplified output to PC by the help TURBO C (C compiler).

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Download or read book Data acquisition using PCL 207 card written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of data acquisition and control encompasses a very wide range of activities. At its simplest level, it involves reading electrical signals into a computer from some form of sensor. These signals may represent the state of a physical process, such as the position and orientation of machine tools, the temperature of a furnace or the size and shape of a manufactured component. The acquired data may have to be stored, printed or displayed. Often the data have to be analyzed or processed in some way in order to generate further signals for controlling external equipment or for interfacing to other computers. This may involve manipulating only static readings, but it is also frequently necessary to deal with time-varying signals as well. In less than a decade, the PC has become the most widely used platform for data acquisition and control. The main reasons for the popularity of PC-based technology are low costs, flexibility and ease of use, and, last but not the least, performance. Data acquisition with a PC enables one to display, log and control a wide variety of real world signals such as pressure, flow, and temperature. This ability coupled with that of easy interface with various stand-alone instruments makes the systems ever more desirable. Until the advent of the PC, data acquisition and process monitoring were carried out by using dedicated data loggers, programmable logic controllers and or expensive proprietary computers. In this project we have used the thermocouple(J-type) to acquire the temperature of water being heated by a heater, which we have got in mili volts range. This has been further converted approximately into the range of 5 volt by using an amplifier of suitable gain (1000). We have used the data acquisition card PCL-207 to interface the amplified output to PC.

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Download or read book Data Acquisition Techniques Using PCs written by Howard Austerlitz and published by Academic Press. This book was released on 2002-12-04 with total page 429 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second edition of this highly successful text focuses on the major changes that have taken place in this field in recent times. Data Acquisition Techniques Using PCs, Second Edition, recognises that data acquisition is the core of most engineering and many life science systems in measurement and instrumentation. It will prove invaluable to scientists, engineers, students and technicians wishing to keep up with the latest technological developments. - Teaches the reader how to set up a PC-based system that measures, analyzes, and controls experiments and processes through detailed design examples - Geared for beginning and advanced users, with many tutorials for less experienced readers, and detailed standards references for more experienced readers - Fully revised new edition discusses latest programming languages and includes a list of over 80 product manufacurers to save valuable time

Download or read book Data Acquisition Techniques Using PC written by Howard Austerlitz and published by Academic Press. This book was released on 2014-06-28 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt: Data Acquisition Techniques Using Personal Computers contains all the information required by a technical professional (engineer, scientist, technician) to implement a PC-based acquisition system. Including both basic tutorial information as well as some advanced topics, this work is suitable as a reference book for engineers or as a supplemental text for engineering students. It gives the reader enough understanding of the topics to implement a data acquisition system based on commercial products. A reader can alternatively learn how to custom build hardware or write his or her own software. Featuring diverse information, this book will be useful to both the technical professional and the hobbyist. - Contains tables of reference information on PC/XT/AT computers that are usually not found in a single source - Includes hardware information, such as I/O addresses, memory maps, and hardware interrupts - Discusses software reference material including BIOS and DOS interrupt calls - Presents valuable hardware interface information including timing diagrams, design examples, and descriptions of standard interfaces, such as the RS-232 serial interface

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