Most often than not, the signal from the sensor in a measurement and control or monitoring system is very small (one millivolt or less) and a key step in signal conditioning is amplification. Therefore, the sensor is often connected to the input terminals of an amplifier. The amplifier in this case can either be single-ended input or differential input type.
In a single-ended input amplifier, one of its input terminals is grounded as demonstrated in Figure 1.0 below and the output is the gain constant A times the input voltage:
For an amplifier with a differential input, it has non-inverting and inverting input terminals as illustrated in the figure below and ideally in this case, neither of the amplifier input is grounded and the output is the differential gain Ad times the difference between the input voltages.
Related articles:
Image source Pixabay The rate of the development of energy sources that are alternatives to…
Image by Pixabay Automation is transforming industries worldwide, and construction is no exception. Companies are…
A closeup shot of a warning lamp in the street at night, image by Freepik…
Impeller flowmeters at times referred to as paddlewheel meters are one of the frequently utilized…
Photo by Héctor Martínez on Unsplash Introduction Yes! If you have old electronic devices that you…
The cosine of the angle between voltage and current in an AC circuit is referred…
