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Analog-to-Digital Converters are the Heart of Data Acquisition Systems

Posted by Jon Semancik on Oct 25, 2018 12:00:00 PM

Jon Semancik, Director of Marketing, AMETEK Programmable Power

 

Data acquisition systems are at the core of many automatic test systems and industrial control systems. They make various types of physical measurements, such as temperature, pressure, flow, strain, position, and speed, using electronic equipment. The data collected is usually sent to a computer for analysis and display.

 What makes this data collection possible is the analog-to-digital, or A/D, converter. As shown in Figure 1, the analog-to-digital converter takes the analog voltage at its input and outputs a digital word whose value is proportional to the input voltage. The resolution of these A/D converters can be as low as eight bits (256 discrete values) or as high as 24 bits (16,777,216 values).

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Topics: VTI, analog to digital

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