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Data-logging

The term 'Data-logging' describes the process of gathering and recording measurement data from sensors.  These are devices whose function is to detect a physical variable and convert it into an electrical signal.  Sensors take the place of instruments such as thermometers and voltmeters used in more conventional practical work. The process of measurement, as such, involves connecting the sensor to a data-logger or interface which converts the electrical signal into a digital code that is either stored inside the data-logger for later retrieval or is sent directly to a computer, usually via the USB port of the computer. Compared with the other software applications described here, the requirement for additional hardware equipment means that data-logging demands the application of practical skills as well as skills for analysing and interpreting data.

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