Campbell CR23X Bedienungsanleitung PDF herunterladen (Seite 2)

as follows:

• sensors and transducer: The sensor “measures” a certain parameter. For example, the air

pressure by converting the pressure in a proportional electric signal (digital or analog as

voltage or current). The signal at the output of the sensor often has to be corrected for

example to eliminate temperature influence on the pressure measurements. Nowadays

sensor and some electronics to correct the output signal from the sensor are part of one

unit, called transducer. The output of the transducer is an electronic signal that can now

be read in the data logger.

• data logger: The data logger collects the output signals of the transducers, defines how

often this signals are read from the transducers, converts analog signals in digital

information and stores it and allows us to monitor and finally download it as our rough

data. As for a PC, the data logger needs some software to run it. This data logger program

has to be written by the user and tells the logger for example which transducers are

connected to the logger and at which rate the signals from the transducers have to be read

by the logger. Nowadays programming a data logger is very easy and will be addressed in

the examples below.

• power supply: An electrical power supply is needed to run the data logger.

• communication cable: The communication cable is usually a serial cable that connects the

data logger with the computer to upload the logger program and download the data.

• computer: A computer is needed to download and post process the data.

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Campbell CR23X Bedienungsanleitung Seite 2