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Instrumentation Reference Book, 4th Edition by Walt Boyes

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Chapter 40. Telemetry
M.L. Sanderson

40.1. Introduction

Within instrumentation there is often a need for telemetry in order to transmit data or information between two geographical locations. The transmission may be required to enable centralized supervisory data logging, signal processing, or control to be exercised in large-scale systems which employ distributed data logging or control subsystems. In a chemical plant or power station these subsystems may be spread over a wide area. Telemetry may also be required for systems which are remote or inaccessible, such as a spacecraft, a satellite, or an unmanned buoy in the middle of the ocean. It can be used to transmit information from the rotating sections of an electrical machine without the need ...

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