Proposal to contruct ptototype and test concept for ternary keyboard which might be genrally useful for data entry. keyboard is unconventional in construction and can only be evaluated experimentally because human factors will regulate its utility.

Vatell corporation will design, assemble and test a breadboard signal processing module for on-line, real-time computation of turbomachine blade clearance and time of arrival. the module will process signals from the vatell probe, a new type of eddy-current proximity sensor. clearance and time of… More

This proposal is for development of sensors for turbomachinery blade clearance and time of arrival, based on novel eddy-current sensing technology originated by vatell corporation. the new sensing technology may result in significant bandwidth improvements for both clearance and time measurements.… More

Lift and control characteristics of a circular airplane employing the coanda effect will be investigated experimentally and analytically. a scale model will be constructed, instrumented and tested for lift forces, velocity and pressure profiles. a finite difference method of analysis of the flow… More

Vatelle offers to build and test prototype heat flux microsensors to determine their characteristics and potential utility for the measurement of heat flux in adverse environments. the sensor is a combination of thin film layers applied directly to the surface whose heat transfer is to be measured.… More

Today businesses, educational institutions and families are more than ever dependent on access to massive amounts of information. the "information explosion" has resulted in widespread implementation of large data bases such as the virginia tech library system (vtls). access to these systems has… More

This project will develop a thermal probe to noninvasively measure local blood perfusion in tissue. the device will consist of a single probe that can be actively heated or cooled and put in contact with the skin. this creates a transient heat flux, which is measured as a function of time. together… More

A new type of probe and associated computing instrument are proposed for quickly measuring thermal properties of solid materials. the proposed combination is based on a miniature thin film heat flux sensor recently developed at virginia tech. the new probe enables the thermal conductivity and… More

Vatell corporation proposes to fabricate heat flux microsensor probes similar to those being developed in a current air force sbir program and apply outer protective layers to the sensors to enhance their resistance to reactive flows and achieve higher temperature ratings. the present probes are… More

Vatell will explore system concepts for performing heat flux calibrati ons at temperatures up to 1,500 degrees f and flux levels of up to 1,0 00 btu/sqft-sec. three designs will be studied; 1) a concentrated hig h-intensity light system, 2) a heated graphite block system, and 3) a convection system.… More

The fire detection and control capabilities of a novel sensor will be evaluated in a combined experimental and analytical program. the sensor, called a heat flux microsensor (hfm), was developed jointly by virginia tech and vatell corporation. this sensor's characteristics make it an outstanding… More

The principal objective of this project is to demonstrte the feasibility of applying thin film heat flux and other sensing devices to turbine blades and other complex objects by a new process. Phase I will culminate in a laboratory demonstration of the core process technology, using readily… More

A new method for constructing heat flux sensors of the differential thermopile type will be developed to produce sensors for testing building components. The new sensors will be thin, readily attached to structures such as walls, floors and roofs, and will have sufficiently low thermal resistance… More

Vatell corporation proposes to fabricate heat flux microsensor probes similar to those being developed in a current air force sbir program and apply outer protective layers to the sensors to enhance their abrasion resistance and high temperature ratings. the current probes are designed for… More