학술논문

Linear measurements from nonlinear sensors: Identifying distortion with incidental noise
Document Type
Periodical
Source
IEEE Instrumentation & Measurement Magazine IEEE Instrum. Meas. Mag. Instrumentation & Measurement Magazine, IEEE. 23(1):50-55 Feb, 2020
Subject
Power, Energy and Industry Applications
Components, Circuits, Devices and Systems
Noise measurement
Real-time systems
Total harmonic distortion
Bandwidth
Language
ISSN
1094-6969
1941-0123
Abstract
Nonlinearity in many systems is heavily dependent on component variation and environmental factors such as temperature. This is often overcome by keeping signals close enough to the device's operating point that it appears approximately linear. But as the signal being measured becomes larger, the deviation from linearity increases, and the device's nonlinearity specification will be exceeded. This limits the range over which the device will produce directly useful measurements, often to far less than the device's safe range of operation.