The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 09, 2024
Filed:
Apr. 21, 2020
Tubitak, Ankara, TR;
TUBITAK, Ankara, TR;
Abstract
The present invention is a pressure coupling chamber () developed for comparison calibrations of acoustic pressure-sensitive hydrophone () in the frequency range from Hz to 1 kHz. A hydrophone (), reference receiver unit () and acoustic source () under test are acoustically coupled in the chamber through the air-filled medium inside the pressure coupling chamber (). Acoustic sources () that are going to create acoustic pressure in the pressure coupling chamber (), placed on the side walls of the chamber () to surround the pressure-sensitive active surface of hydrophone (), are driven to create a hydrostatic pressure effect in the related frequency range in the chamber. Calibration of tested hydrophone () with comparison method is carried out by measuring the output voltages of tested hydrophone () and the reference receiver unit ().