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    Signal Conditioning

    A signal conditioner is a device that converts one type of electronic signal into another type of signal, to prepare it for processing. Signal conditioners are used to convert a signal that may be difficult to read by conventional instrumentation. The output signal is then compatible with data acquisition and machine control.

    Signal conditioners are traditionally DIN Rail mounted and are used on a DIN Rail bracket. They are very popular in industrial applications since they provide a rugged mounting format. Backplane Mount Conditioners - The backplane style provides the advantage of all output signals being accessible through a single common connector. Backplane signal conditioners are often used with data acquisition systems.

    How do signal conditioners work?

    Signal conditioning can perform a wide range of processes required to make sensor output suitable for processing include amplification, filtering, converting, range matching, isolation. Some signal conditioners also provide evaluation and measurement. The input from a sensor is connected to the signal conditioner, which is then able to convert the specific input type into a signal that produces the necessary output type for the instrumentation used. The input signals and output signals can be voltage or current, depending on the device.

    Types of Signal Conditioning

    • Digital Sensor Signal Conditioners - The output of a digital signal conditioner is converted to a digital format such as RS232, RS485 or Ethernet. Digital signals provide a high degree of immunity from electrical noise, and can also support extended transmission distances.
    • Amplifying signal conditioners are used to increase the signal as it passes through. Isolation amplifiers are used to isolate high DC levels from the device while passing small AC or differential signal.
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