Design of an accelerometer to maximize the performance of vector hydrophones

Yongrae Roh; Seonghun Pyo; Seongmin Lee

doi:10.1117/12.2295910

23 March 2018 Design of an accelerometer to maximize the performance of vector hydrophones

Yongrae Roh, Seonghun Pyo, Seongmin Lee

Author Affiliations +

Proceedings Volume 10597, Nano-, Bio-, Info-Tech Sensors, and 3D Systems II; 1059707 (2018) https://doi.org/10.1117/12.2295910
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2018, Denver, Colorado, United States

Abstract

In this study, the optimum structure of a shear type accelerometer is designed to maximize the performance of a vector hydrophone used for a towed array sonar system. The effect of the structural elements of the accelerometer on the receiving voltage sensitivity (RVS) of the hydrophone is analyzed, and the optimal structure of the accelerometer is derived based on the analysis. The RVS of the acceleration designed by the optimization is -204.9 dB, which satisfies the design specification. In addition, it is confirmed that the accelerometer with the optimum structure has the dipole mode beam pattern required for a vector hydrophone. The dipole response when coupled with an omnidirectional hydrophone can generate a cardioid beam pattern that can detect not only magnitude of a sound pressure but also the direction of the external sound source. Precedent works have presented the concept of the vector hydrophone and proved its functionality without detailed design of its structure so far. This work is new in that we carried out full detailed design process to maximize the performance of the vector hydrophone based on the analysis of the effect of structural parameters constituting the accelerometer.

Citation Download Citation

Yongrae Roh, Yongrae Roh, Seonghun Pyo, Seonghun Pyo, Seongmin Lee, Seongmin Lee, } "Design of an accelerometer to maximize the performance of vector hydrophones", Proc. SPIE 10597, Nano-, Bio-, Info-Tech Sensors, and 3D Systems II, 1059707 (23 March 2018); doi: 10.1117/12.2295910; https://doi.org/10.1117/12.2295910

ACCESS THE FULL ARTICLE

PERSONAL SIGN IN
Full access may be available with your subscription

Email or Username Forgot your username?

Password Forgot your password?

Show

Remember Email/Username on this computer

Remember Password

No SPIE account? Create an account
or Institutional Sign In via Shibboleth

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $14.40

Non-members: $18.00 ADD TO CART

Show All Keywords

Keywords/Phrases

Search In:

Publication Years