Description and definition of data loggers and data acquisition, and a summary of the main benefits.
What is a data logger?
Data loggers are electronic devices which automatically monitor
and record environmental parameters over time, allowing conditions
to be measured, documented, analysed and validated. The data logger
contains a sensor to receive the information and a computer chip to
store it. Then the information stored in the data logger is
transferred to a computer for analysis.
Loggers in the Tinytag range monitor parameters including
temperature, humidity, single and three phase power usage,
CO2, mV, mA, voltage, pulses or counts.
What is data acquisition?
Data acquisition is the sampling of the real world to generate
data that can be manipulated by a computer. Sometimes abbreviated
DAQ, data acquisition typically involves acquisition of signals and
waveforms and processing of the signals to obtain desired
information. The components of data acquisition systems include
appropriate sensors that convert any measurement parameter to an
electrical signal, which is acquired by data acquisition hardware
(such as data loggers). Acquired data typically is displayed,
analysed, and stored on a PC.
Benefits of using a data logger
Data logging can be done manually by constant human observation.
An example of this might be recording the temperature changes over
the course of an hour in a centrally heated room using a timer,
thermometer, pen and paper. However, using an electronic data
logger is much more effective, accurate and reliable than taking
periodic manual readings. It does the job of all the tools
mentioned above, saving time and expense.
The time taken to see the benefits of using data loggers will
depend on the way in which the units are used. However,
quantifiable benefits from the using loggers may often be seen
within a very short time. Typically, only one or two logging runs
are required to pinpoint areas that would benefit from extra
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