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The electrical outputs of many different transducers have often to be analysed simu...ltaneously in time, for example, the pressure and temperature variations during the firing cycle of a combustion engine. Obviously, if measurements of a system taken from different transducers relate to different times (i.e. phase errors) or if one transducer is not sensitive enough or overloaded (i.e. amplitude errors), then calculations based on these measurements would be liable to error. This programme shows h
This programme is introduced by Dr. Dave Crecraft who then hands over to Glyn Marti...n and a demonstration of a gross-correlation flowmeter. This is similar to the sewage flowmeter discussed in the text, but in this case the flow of water containing air bubbles is measured. The resistivity across the tube is continuously measured by two pairs of electrodes mounted on the inside walls and separated by a distance equivalent to a few diameters. The rest of the programme is about three types of mod
This programme sets out to show how a simple friction measurement can involve the s...imultaneous analysis of the electrical signals from two pressure transducers and one accelerometer transducer.
This programme is about the transducers mentioned in Unit 7 and TV4: their internal... construction, the electrical output signals, and how these signals are coded and counted to provide positional information. The programme is introduced by David Crecraft who shows the internal construction of an optical Moire' fringe encoder position transducer.
