Transcription of INSTRUMENTATION AND CONTROL SYSTEMS
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INSTRUMENTATION AND CONTROL SYSTEMS
1 INSTRUMENTATION AND COMPUTER CONTROL SYSTEMS SENSORS AND SIGNAL CONDITIONING Steve Collins Michaelmas Term 2012 Introduction An INSTRUMENTATION system obtains data about a physical system either for the purpose of collecting information about that physical system or for the feedback CONTROL of the physical system Any INSTRUMENTATION system must include an input transducer (sensor), such as a strain gauge, whose response to a particular stimulus can be measured electrically. The other component that is generally present in modern INSTRUMENTATION SYSTEMS is a digital processor, such as a computer or a micro-controller.
2 user, stored for later analysis, transmitted to a remote location or used by a controller. The signal from a transducer is usually analogue in nature, ie. it is continuously varying and can take any value (within an allowed range). This continuous analogue data has to be converted to a digital format
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