HD 35 – Data Logger
A data recording system is a set of instruments which allows measuring and storing the values of certain physical quantities, such as temperature, humidity, pressure, solar radiation, etc. In the case of wireless connections, the acquisition system is made of a radiofrequency transmitting part and a radiofrequency receiving part:
A data recording system is generally made of:
– Sensors: they are placed at the measuring points and convert the values of the physical quantities into electrical analog or digital signals. – Acquisition system: it reads and logs the electrical signals outgoing from the sensors. If the acquisition system is digital, the acquired values are kept in the system's internal memory until the memory is full.
– PC: the transfer of data from a digital acquisition system to a PC allows storing the measured values even after the internal memory of the acquisition system is full.
The PC also allows processing and analyzing the acquired values..