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Skildring:The measured calibration gain for a transducer should be identical for different calibration spheres, but this example shows gaps in the gain, in particular located close to the deep minima of the spheres.
Kode: HAV-67256
Kreditering: Tonje Nesse Forland / Havforskningsinstituttet
Søkeord: Calibration, CRIMAC, EK80, FM, Frequency Modulated, xxxInExternalxxx
AI-søkeord: akustisk kalibrering, kalibreringskuleir, frekvensområde 170–260 kHz, forsterking vs frekvens, MATLAB-graf, punktdiagram, vitskapleg datavisualisering, WC25, WC35, WC38.1
AI-tekster: Why do we get different gain for different calibration spheres?, 29.5, Gain with WC25, 29, Gain with WC35, Gain with WC38.1, 28.5, 28, 27.5, gain, 27, 26.5, 26, 25.5, 25, 170, 180, 190, 200, 210, 220, 230, 240, 250, 260, frequency, kHz, Why, do, we, get, different, gain, for, different, calibration, spheres?, 29.5, Gain, with, WC25, 29, Gain, with, WC35, Gain, with, WC38.1, 28.5, 28, 27.5, gain, 27, 26.5, 26, 25.5, 25, 170, 180, 190, 200, 210, 220, 230, 240, 250, 260, frequency,, kHz
Alternativ tekst: Spreiingsplott som samanliknar sonarvinstverdi på tvers av frekvensane 170–260 kHz for tre wolframkarbid-kalibreringskuleir: WC25, WC35, WC38.1.
Filtypar: Original (2560 x 1323), Medium(JPG) (1920 x 992), Liten(JPG) (1080 x 558)

HAV-67256
The measured calibration gain for a transducer should be identical for different calibration spheres, but this example shows gaps in the gain, in particular located close to the deep minima of the spheres.
Tonje Nesse Forland / Havforskningsinstituttet
Original (2560 x 1323)
Medium(JPG) (1920 x 992)
Liten(JPG) (1080 x 558)

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