Signal Conditioning Modules

The signal conditioning process includes amplification, filtering, range matching and isolation to make the output suitable for processing after conditioning. Filtering is the most common function. The power lines present in the environment will produce noise if the signal is amplified without filtering. Signal amplification performs two important functions: to increase the resolution of the input signal and to increase the signal-to-noise ratio.

The commonly used amplifiers in signal conditioning are sample and hold amplifiers, peak detectors, log amplifiers, Instrumentation amplifiers. Signal Isolation is done through magnetic or optic isolation. Magnetic isolation transforms the signal from voltage to magnetic field, allowing the signal without physical connection. Optic isolation takes an electronic signal and modulates it to an optical encoding then used for the next stage of processing.