USA flag logo/image

An Official Website of the United States Government

Wireless and Passive Noise Measurement and Earplug Evaluation System

Award Information

Department of Defense
Award ID:
Program Year/Program:
2013 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Physical Optics Corporation
Electro-Optics Systems 1845 West 205th Street Torrance, CA 90501-
View profile »
Woman-Owned: Yes
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2013
Title: Wireless and Passive Noise Measurement and Earplug Evaluation System
Agency / Branch: DOD / NAVY
Contract: N68335-13-C-0325
Award Amount: $79,997.00


To address the Navy"s need for a miniature wireless earplug-integrated sensor, Physical Optics Corporation (POC) proposes to develop a new Wireless and Passive Noise Measurement and Earplug Evaluation Sensor (WIPAS) system This system is based on an innovative surface acoustic wave (SAW)-based passive and wireless pressure sensor and an acoustic sensor that is small enough (224 mm) to be inserted in and removed from the ear canal. These sensors wirelessly interface with the WIPAS system"s compact external interrogator unit. The WIPAS system works both as an earplug fit/performance evaluator and as a noise dosimeter. The innovations in the WIPAS system allow evaluation and measurement in real time without compromising the earplug, which is currently impossible. Unlike the conventional earplug whose performance typically degrades over time (due to movement, etc), the features offered by the WIPAS enable reliable determination of protection provided to the device wearer. In Phase I, POC will perform modeling and simulation of the SAW sensor, and demonstrate WIPAS feasibility by developing a limited-capability bench-top prototype. This TRL-3 prototype will be experimentally evaluated in laboratory-controlled environment. In Phase II, we plan to build and validate a complete TRL 5-6 system, demonstrate its field worthiness, and evaluate its productization.

Principal Investigator:

Ninad Patnekar
Group Leader
(310) 320-3088

Business Contact:

Gordon Drew
Chief Financial Officer
(310) 320-3088
Small Business Information at Submission:

Physical Optics Corporation
Products and Engineering Division 1845 West 205th Street Torrance, CA -

EIN/Tax ID: 330118051
Number of Employees:
Woman-Owned: Yes
Minority-Owned: No
HUBZone-Owned: No