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In digital instrumentation system, especially in digital electronics, digital computers have taken a major role in near every aspect of life in our modern world. Digital electronics is at the heart of computers, but there are lots of direct applications of digital electronics in our world. All these digital electronics need data to be presented to them in a digital format (i.e. the data have to be digitally conditioned). This is called digital conditioning. Since computers are electronics devices, all the information they work with has to be digitally formatted. Therefore, if they are used to control a variable such as temperature, then the temperature has to be represented digitally. That's why we need digital signal conditioning to condition process-control signal to be an approximated digital format.〔Curtis D. Johnson, "Process Control Instrumentation Technology" Sep 6, 2006. ISBN 0-13-441305-9〕 ==Introduction and digital fundamentals== Digital signal conditioning in process control means finding a way to represent analog process information in digital format. .〔Ramón Pallás-Areny, John G. Webster, "Sensors and Signal Conditioning, 2nd Edition", November 2000. ISBN 978-0-471-33232-9〕 Use of in control system is particularly valuable number of other reasons, however: : A computer can control multivibrator process-control system. : Nonlinearities in sensor output can be linearized by the computer. : Complicated control equation can be solved quickly and modified as needed. : Networking of control computers allow a large process-control complex to operate in a fully integrated fashion. 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Digital signal conditioning」の詳細全文を読む スポンサード リンク
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