Fabrication and Characterization of High-Sensitivity Underwater Acoustic Multimedia Communication Devices with Thick Composite PZT Films

Table 1

Details of the four hydrophones used in the comparison.

Manufacturer	Hydrophone type	Sensitivity dB, ref. V/μPa	Operation bandwidth	Reference
Taiwan	This work	−190	1–500 Hz
Brüel & Kjær	BK-8103	−210	0.1 Hz–180 kHz	[14]
Reason.	TC-4040	−206	15 Hz–120 kHz	[15]
USRD	H52	−218	100–500 kHz	[16]