amplituudil

Amplituudil is the Estonian adessive form of the noun amplituud, meaning amplitude. In linguistic terms, amplituudil is used to indicate location or context related to amplitude in Estonian sentences, such as discussions of a signal’s magnitude or a phenomena occurring at a specific amplitude. The base word amplituud itself is borrowed from international scientific terminology, and the -l suffix marks the adessive case in Estonian grammar.

In scientific and engineering contexts, amplitude refers to the magnitude of oscillation or displacement in a periodic phenomenon. For a sinusoidal signal described by A cos(ωt), A represents the amplitude—the maximum deviation from the rest position. Amplitude should not be confused with related concepts such as the peak-to-peak value (which is 2A for a symmetric sine wave) or the root-mean-square (RMS) value, which equals A/√2 for a pure sine wave. Amplitude is a fundamental parameter in fields including acoustics, electromagnetics, mechanical vibrations, and optics, where it quantifies the strength or loudness of a signal, the energy of a wave, or the extent of motion.

In practice, amplitude is measured in physical units appropriate to the context, such as volts for electrical signals or meters for mechanical displacement. The term amplituudil appears in Estonian-language texts when discussing amplitude-related conditions, values, or measurements, functioning as a grammatical form rather than as a separate scientific concept.

See also: amplitude, peak, RMS, signal processing, oscillation.