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TvU

TvU Completed Commercial Research Projects

Carbon Sample Heat Treatment (2017)

Multiple carbon samples of approximately 10 cc were heat treated at 2000°C for three hours in TvU's graphite furnace.

High Pressure Optical Heating Cell (2015)

TvU designed a high pressure transparent optical cell heated to temperatures above 2000°C using high power arc lamp heating.

Sapphire as a Mobile Phone Faceplate (2013)

Experiments and feasibility research were performed to determine whether sapphire could be made into faceplates for mobile phones.

Shale Oil Resistivity Testing (Exxon) (2013)

The complex (real - resistance, and imaginary - capacitance) AC resistivity of a wide variety of oil shale samples were tested to pressures of 2000 psi and temperatures to 1000°C at TvU in TvU's high pressure high temperature furnace.

1000°C Cesium Optical Cell (2012)

Click here for an image.

A high vacuum cell was fabricated to optically examine cesium vapor. An internally triggered ampoule breaker apparatus supplies cesium once the system is under vacuum. A heater furnace supplies cesium at a controlled pressure. The centerpiece of the apparatus is a sealed sapphire window that can cycle to 1000°C enclosed in a furnace using a TvU temperature controller.

LOI (Limiting Oxygen Index) Testing (2011)

A variety of fiber reinforced structural solids were tested for LOI in accordance with standard testing procedures. Flame persistence was monitored as a function of oxygen concentration in its surrounding atmosphere. High oxygen concentrations were often necessary.

Sapphire Fiber Optic Chemical Sensor (2008)

Developed and demonstrated techniques for reliably coiling a 50 micron diameter sapphire fiber around a small diameter core without breaking. The fiber was then sealed into a vacuum fitting and microdot fiber connectors attached to form a complete optical chemical sensor.

High Temperature Furnace Resurrection (2008)

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An obsolete, tungsten mesh furnace was inexpensively put into working condition. The box furnace vacuum was repaired, and its mercury diffusion pump cleaned and converted to an oil diffusion pump. The high and low vacuum system was debugged and returned to original operating condition. The furnace was fitted with air cooled to avoid a major water facility hookup, and a VRT transformer incorporated to drive the furnace to 2000°C using a TvU temperature controller.

AFRL Shaker Environmental Facility (2007)

The Air Force Research Laboratory came to TvU wanting to vibration test electronics under a wide variety of environmental conditions. TvU built a facility that could vibration test mounted equipment from 20 to 3000 Hz, in any gas at pressures from high vacuum to 1 atmosphere, and simultaneously at temperatures up to 1000°C.

Stent Oxide Layer Removal (2006)

A process was developed and tested to remove oxide layers from commerical stents using heated graphite processing chambers.

High Altitude Balloon Coating Research (2005)

A study explored ways of using coatings combined with solar heating effects to enhance high altitude balloon performance.

High Temperature Droplet Imaging Furnace (2005)

Tube furnace designed to image molten metal droplets.

High Temperature Droplet Imaging Furnace High Temperature Droplet Imaging Furnace

Vacuum Camera Mod (2005)

TvU was approached with the question as to whether a standard video camera could be operated in a vacuum. TvU demonstrated that the camera operated without problems under high vacuum, only having to be modified with a heat sink to the external structure to remove the heat generated by the electronics.

HID Lamp Bulb (2004)

TvU develop a sealed sapphire/alumina bulb for an HID (High Intensity Discharge) lamp.

NASA Camera Mod (2004)

After the Space Shuttle disaster, NASA solicited to modify a standard high speed camera so that it could operate with cooling, sealed in a low pressure environment. This type of camera was required to perform Back-to-Flight testing of shuttle components. TvU successfully sealed the multipin connected camera and provided umbilical internal cooling.

Inset Runway Flasher (2000-2004)

This was a project for the FAA that developed a high intensity inset (buried) runway flasher. This inset flasher meets above runway flasher specifications, but is buried in the center of a runway so that planes and snowplows can operated over it. The flasher emits a directed bright flash to guide planes into the runway. The challenge was to guide a large amount of flash energy at a low forward angle through a small window.

Inset Runway Flasher Inset Runway Flasher

Microwave Internal Combustion Flame Enhancement (1993)

A study explored the possibility of using microwaves injected into the cylinder of a spark ignition internal combustion engine to increase local flame speed, improving combustion efficiency and reducing pollution.

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Last updated: March 2018