The Nittany Acoustics LLC Sub-Concussive Blast Measurement System
Award last edited on: 9/6/2022

Sponsored Program
Awarding Agency
Total Award Amount
Award Phase
Solicitation Topic Code
Principal Investigator
Kevin L Michael

Company Information

Nittany Acoustics LLC

2766 West College Avenue Suite 1
State College, PA 16801
   (814) 234-7042
Location: Single
Congr. District: 12
County: Centre

Phase I

Contract Number: W81XWH21P0094
Start Date: 7/12/2021    Completed: 2/11/2022
Phase I year
Phase I Amount
Sub-concussive blasts, ranging from about 140-180 dB Peak, are common in military and non-military environments. This type of noise exposure can be generated by small arms fire, explosions, jackhammers, nail guns, forging operations and others. There are serious short- and long-term potential health effects, both auditory and non-auditory, due to exposure to these blasts. Before the health effects can be completely understood and mitigated, the blasts must be accurately quantified. Nittany Acoustics proposes to design and manufacture a small, wearable blast dosimeter that records the blast events for later analysis with a personal computer application. The blast dosimeter will be non-obtrusive and designed for use on a daily basis. Data transfer to the host PC will be wireless and easy-to-understand reports will summarize the blast details including metrics related to damage-risk, including A- and B-duration, LAeq(8 hour) and L IAeq(100ms).

Phase II

Contract Number: W81XWH22C0082
Start Date: 7/8/2022    Completed: 11/17/2024
Phase II year
Phase II Amount
This project involves the development of a small, self-powered sub-concussive blast recording badge, referred to as the Nittany Acoustics Blast Dosimeter (NABD, pronounced “nab-dee”). The NABD will sense and record sub-concussive blasts in the range from 120-212 dBP. The sampling rate for the digital system will be 102.4 kHz. Recordings of single blasts will be in the range of 100 ms. Post processing will be performed on a personal computer following wireless or smart-card data transfer from the NABD. Post processing will include calculation of the A-, B- and C-durations of the waveform. Additionally, the waveform will be formatted for input to the DOD Auditory Hazard Assessment Algorithm for Humans (AHAAH) analysis tool. The results of these analyses can then be correlated with the various auditory and non-auditory health effects experienced by the NABD wearer.