Digitisation rates

The acquisition time is defined by the digitisation rate (which is dictated by the spectral width and defines the sampling dwell time DW) and on how many data points are sampled in total. If the FID contains TD time-domain data points then ... 

The corrosion process is observed as a series of events which all contribute to the overall corrosion rate. Measurement of rest potential fluctuations between two identical electrodes of potential fluctuations with respect to a fixed reference can be carried out. The electrochemical noise output spectrum is analysed using digitised data. The interpretation requires electrochemical expertise, and the method is therefore usually provided as a specialised service. 

The PC controls the Ultrasonic Pulser/receiver (UPR) via a R232 port, setting the pulsing rate, pulsing frequency and the amplification of the received signal. The UPR pulses the transducer that creates the ultrasonic signal. The UPR then receives the reflected pulse and transfers it to the oscilloscope. The oscilloscope then digitises the information before it is downloaded to the computer. The computer also records the temperature of the oil as it escapes from the oil film. 

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