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Terahertz Imaging Detection of Delamination and Water Intrusion

Award Information

Department of Defense
Air Force
Award ID:
Program Year/Program:
2006 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Picometrix LLC
2925 Boardwalk Ann Arbor, MI 48104-
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2006
Title: Terahertz Imaging Detection of Delamination and Water Intrusion
Agency / Branch: DOD / USAF
Contract: FA8201-06-P-0964
Award Amount: $100,000.00


We propose to demonstrate the feasibility of using time domain Terahertz (THz) measurements to locate and identify defects such as delaminations and water intrusion in advanced composite materials used in ground based radome panels, shelters and towers. We will investigate the ability of terahertz measurements, both with time domain and Fourier domain (i.e., spectroscopy) analysis, to detect defects of interest. These measurements will also be used to generate 2- and 3- dimensional high-resolution maps of the composite material structures. Additionally we will demonstrate the feasibility to detect other types of defects, such as metal intrusions, resin poor or rich areas and fluid contaminations (e.g., oil, fuel), in other materials such as aircraft composite structures. Water has comparatively higher absorption in the THz spectra, so the method should much more sensitive than microwave imaging to detect water intrusion. We will develop an algorithm requiring no, or only very minimal, human intervention to identify defects with accuracy and consistency. We will describe the design requirements of a prototype THz inspection system, to test Radomes panels, composite shelters and towers. In Phase II, we will deliver a prototype system providing accurate and consistent defect identification that is easy to handle by Radome climbers.

Principal Investigator:

David Zimdars
Manager of Terahertz Research/Dev

Business Contact:

Robin F. Risser
Chief Financial Officer
Small Business Information at Submission:

2925 Boardwalk Ann Arbor, MI 48104

EIN/Tax ID: 371508208
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No