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Sensing And Instrumentation Case Study

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Sensing and Instrumentation Case Study

Properties, Processing and Applications of Capacitance Sensors:
A Case Study of Capacitance Micrometry

Stephen Grant – 01267044
2014

Abstract
This is a case study that looks in detail at the properties, process and application of capacitance micrometers. The fundamentals and designs of capacitance micrometers are analyzed in detail in order to assess their viable use within industry. Suitable comparisons with alternatives to capacitance micrometry measuring techniques are made while looking at the benefits and drawbacks of each with respect to different applications. This case study proves that capacitance sensing is an robust technology to use due both its variety of uses that can be used in a wide range of extreme industrial environments and applications.
Introduction
Many applications within industry require accurate detection and measurement of sub micron/nanometer displacements. For example, in order for accurate control systems to be implemented, it is therefor vital that an accurate sensor be used within that control system. Throughout the years, many different sensors have been developed and used in order to detect movement within many different engineering applications. Alternate sensing technologies to Capacitance Micrometry bring with them some design and cost issues with them; for example issues including size, cost and accuracy. Sensors that make use of Capacitance measurement and detection are

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