Chapter 8 – Display, Recording, and Presentation of Measurement Data

Publisher Summary This chapter examines various ways that measurement data can be displayed, either using electronic display devices or using a computer monitor. Measurement signals in the form of a varying electrical voltage can be displayed either by an oscilloscope by any of the electrical meters. Electronic displays enable a parameter value to be read immediately, thus allowing for any necessary response to be made immediately. The main requirement for displays is that they should be clear and unambiguous. Computers are now both inexpensive and highly reliable and provide an excellent mechanism for both displaying and storing information. Chart recorders have particular advantages in providing a non-corruptible record that has the merit of instant view ability. This means that all but paperless forms of chart recorders satisfy regulations set for many industries that require variables to be monitored and recorded continuously with hard-copy output. All current potentiometric chart recorders contain a microprocessor controller, where the functions vary according to the particular chart recorder.