Data Recording and Analysis
B. A. Gregory · 1973
Consider a researcher investigating a piece of equipment such that readings of temperature, pressure, movement, voltage, current, etc., are required to be recorded at regular intervals over a period of time to establish consistency of operation. Until the advent of the data recorder this type of situation required attendants to take the measurements. This used to be done somewhat laboriously and at times with dubious accuracy. However, now, when some form of data recorder is used, readings may be made with known limits of error either as a continuous record or in a predetermined sequence at controlled time intervals over an extended period.