Data logging means measuring something over a period of time with a sensor and recording the results.
A data logging system consists of sensors connected via an interface to a computer and some data logging software.
When designing a data logging system, you can decide:
Some data logging systems also need to be calibrated before they are used. This involves the computer matching the sensor readings with standard units that humans can understand.
- over how long the measurements will take place (the period of logging);
- the amount of time that should pass between each measurement (the time interval).
|Benefits of Data Logging|
Advantages of using computers to record data rather than recording it manually include:
- Mistakes are not made in reading the results. The computer will not make errors unlike a human. For example it is quite easy to misread the temperature using the scale on a thermometer.
- Measurements are always taken at the right time. The computer will not forget to take a reading or take a reading too late or too early, unlike a human.