A sensor, which is a type of transducer, is a device that converts a physical property into a corresponding electrical signal (e.g., strain gauge, thermistor). An acquisition system to measure different properties depends on the sensors that are suited to detect those properties. Signal conditioning may be necessary if the signal from the transducer is not suitable for the DAQ hardware being used. The signal may need to be filtered, shaped, or amplified in most cases. Various other examples of signal conditioning might be bridge completion, providing current or voltage excitation to the sensor, isolation, and linearization. For transmission purposes, single ended analog signals, which are more susceptible to noise can be converted to differential signals. Once digitized, the signal can be encoded to reduce and correct transmission errors.
A sensor which is a type of transducer is a device that converts a physical property into a corresponding electrical signal (eg strain gauge thermistor) An acquisition system to measure different properties depends on the sensors that are suited to detect those properties Signal conditioning may be necessary if the signal from the transducer is not suitable for the DAQ hardware being used The signal may need to be filtered shaped or amplified in most cases Various other examples of signal conditioning might be bridge completion providing current or voltage excitation to the sensor isolation and linearization For transmission purposes single ended analog signals which are more susceptible to noise can be converted to differential signals Once digitized the signal can be encoded to reduce and correct transmission errors