Browsing USN Open Archive by Author "Tichy, Frank"
Now showing items 1-4 of 4
-
Acoustic Impedance Matching of PMN-PT/epoxy 1-3 Composites for Underwater Transducers with Usable Bandwidth Restricted by Electrical Power Factor
Røed, Ellen Katrine Sagaas; Andersen, Kenneth Kirkeng; Bring, Martin; Tichy, Frank; Åsjord, Else-Marie; Hoff, Lars (Peer reviewed; Journal article, 2019)Volume cost has limited the use of single crystals in underwater applications, butreported performance of PMN-PT sonar transducers now motivates the design of commercial prototypes. This work addresses optimization of the ... -
Analyse av en Ultralyd Transduser med et Laser Doppler Vibrometer
Nilsen, Mikael Isak (Master thesis, 2021)Ultrasonic transducers are an integral part of underwater imaging, with a wide range of applications. In this thesis, analysis of a underwater echo sounder transducer operating at 200kHz is done underwater with a Laser ... -
Electrical power factor for a single crystal tonpilz versus a plate with matching layers
Røed, Ellen Katrine Sagaas; Bring, Martin; Tichy, Frank; Åsjord, Else-Marie; Hoff, Lars (Peer reviewed; Journal article, 2021)For underwater transducers mounted on small platforms, reactive electrical power can constitute a main restriction on the usable frequency range. The frequency range in which the amount of reactive power is acceptable can ... -
Increased Usable Frequency Band for Underwater Transducers with Single Crystal
Røed, Ellen Katrine Sagaas; Andersen, Kenneth Kirkeng; Bring, Martin; Tichy, Frank; Åsjord, Else-Marie; Hoff, Lars (Peer reviewed; Journal article, 2020)In the increasing market of transducers for small underwater platforms, each transducer should be used for several purposes, hence cover as large frequency range as possible. Bandwidth is commonly defined as the -3dB limit ...