ISP 215 Chapter Notes - Chapter 4: Spectrum Analyzer, Frequency Counter, Analog Devices
Document Summary
Chapter 4: instrumentation the 19th century saw the beginning of truly serious study of human hearing the anatomy, the physiology, and the psychology. A device that converts a signal from one form to another. Converts a signal from the acoustical domain. Where it is a pressure waveform transmitted through the air to the electrical domain. Where it is a voltage waveform transmitted through wires to convert an electrical signal into an acoustical pressure waveform in the air you have to use another transducer. A loudspeaker or a set of headphones. Output of device is analogous to the input. A (cid:449)ell (cid:271)eha(cid:448)ed tra(cid:374)sdu(cid:272)er that does(cid:374)"t distort the sig(cid:374)al is li(cid:374)ear linearity can be shown on a graph that describes the relationship between the input and the output the graph must be a straight line. An instrument that displays waveforms as functions of time. Vertical axis represents a voltage two types of oscilloscopes available. Displays amplitudes as a function of frequency.
