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This device is responsible for converting analog signals from external devices to digital signals that can be processed by a computer. (Digital Multimeter Board,Digitizer Board)Īnalog I/O device classification Analog input device(A/D conversion) That bridge is called an analog I/O interface. For this reason, in order to input a signal from a sensor using a computer, or to output a signal to an actuator, it's necessary to have a device that can bridge the analog signal and the digital signal handled by the computer. On the other hand, only digital signals can be handled by computers. The signals from sensors that measure surrounding natural factors such as temperature, pressure, and flow rate are often analog signals, and most control actuators move according to analog signals.

Types of noise and applicable countermeasures.

Expressing analog values as digital values.

Relationship between binary and voltage.

Recommended sampling rate: 10 times the frequency being measured.

It may also prove a useful resource for individuals already using CONTEC analog I/O devices. The content offered here is recommended knowledge for anyone looking to perform measurement control using a computer as well as anyone considering automating data logging or measurements.

This section offers basic knowledge and glossary terms related to analog I/O, A/D conversion, and D/A conversion in an easy-to-understand way that includes illustrations.