The goal of this project is to produce a micro-miniature, fully implantable displacement sensor, capable of chronic implantation in vivo. the device will incorporate several new features that enhance the general usefulness of the sensor. the device is based on the principle of detection of the… More

The development of improved implantable devices and biomaterials requires knowledge of their in vivo behavior. However, little is known about the actual loads borne by implanted devices in vivo. Direct measurement of these loads would provide extremely valuable information for the improvement of… More

"This Phase I Navy SBIR proposal is aimed at the development of a new class of wireless sensing devices. These sensors do not require batteries or external magnetic fields in order to send data, instead, they rely on harvesting vibration energy in order tosense information and to wirelessly… More

DESCRIPTION (provided by applicant): Over 250,000 hip replacements are inserted annually in the U.S.A., with aseptic loosening the greatest source of long-term failure. Since femoral component subsidence measured on plain radiographs (accuracy 2-3 millimeters) is not typically evident before five… More

This Phase II Navy SBIR proposal is aimed at the development of a new class of wireless sensing devices. These sensors do not require batteries or external magnetic fields in order to send data, instead, they rely on harvesting vibrational energy in order to sense information and to wirelessly… More

The goal of this Phase I SBIR proposal is to design and build energy harvesting wireless sensing systems suitable for use aboard Navy Helicopters. The program will begin with a survey of typical vibration data obtained during flight testing; these data will then be used to optimize our existing… More

The goal of this Phase II SBIR proposal is to design, build, test, and demonstrate next generation energy harvesting wireless sensors for real time load measurement and structural damage tracking on helicopters. Energy harvesting allows the realization of wireless monitoring systems that do not… More

Embedded wireless sensors for corrosion monitoring of critical aircraft components are needed for improved condition based maintenance and future structural health monitoring (SHM) systems. The objective of this Phase I SBIR proposal is to design, develop, and test a corrosion measurement and data… More

In the proposed work, we will develop a highly efficient and miniaturized vibration energy harvesting device suitable for use on drive system components of helicopters. The goal is to provide power to run a wireless corrosion hub and sensors (to be developed simultaneously in a separate program). … More

A major barrier to the widespread adoption of wireless sensors for structural health monitoring is the requirement to power the network of wireless nodes. Batteries have a limited lifespan, adding significant size, weight, and costs to the wireless sensor network,and may represent a long term… More

Structural monitoring of Navy aircraft is of critical importance as the fleet ages. One critical area includes the control surfaces, which are subject to intense, dynamic buffet loading which can lead to structural cracking. The highly transient nature of buffet loading makes it difficult to measure… More

Embedded usage tracking of helicopter rotating components, combined with active radio frequency identification (RFID) has the potential to reduce maintenance costs, reduce weight, maximize structural life, & enhance safety. Energy harvesting used with advanced, micro-power wireless sensing… More

Embedded usage tracking of helicopter rotating components, combined with active radio frequency identification (RFID) has the potential to reduce maintenance costs, reduce weight, maximize structural life, & enhance safety. Energy harvesting used with advanced, micro-power wireless sensing… More

Structural health monitoring (SHM) of large structures such as Navy ships requires an in depth knowledge of operational loads and how these loads may change over time. A network of low cost, wireless strain sensors can provide this information. During Phase I, we will demonstrate a highly… More

Conventional indoor environmental monitoring technologies are expensive, cumbersome to install and maintain, and do not provide the distributed granularity required to capture the necessary details for efficient energy management of commercial buildings. Developments in wireless sensor networks… More

ABSTRACT: Structural monitoring of the landing gear of fixed and rotary wing aircraft is of critical importance to the Air Force. These structures are subjected to repeated large dynamic loads that are highly variable in nature. In order to track these structures"fatigue over time, the… More