Keyword: Fire detection

Briefs: Materials
This remote forest fire detection and alarm system is powered by nothing but the movement of the trees in the wind.
Briefs: Electronics & Computers
An already ubiquitous material in outdoor photovoltaic modules could be repurposed for indoor devices with low-capacity batteries.
Briefs: Sensors/Data Acquisition
A remote forest fire detection and alarm system is powered by nothing but the movement of trees in the wind.
Briefs: Photonics/Optics
A new laser-based system offers an efficient way to detect fires in challenging environments such as industrial facilities or large construction sites.
Briefs: Sensors/Data Acquisition

What had been a peaceful and productive mission for the six men aboard the Russian space station Mir, including U.S. astronaut Jerry Linenger, nearly became a tragic...

Application Briefs: Energy
Northrop Grumman Corporation
Azusa, CA

Two critical instruments built by Northrop Grumman for the National Oceanic and Atmospheric...

Technology Leaders: Imaging

Although camera components like CCD and infrared sensors have reached a level of maturity, imaging features continue to evolve. Analysts from the San Francisco, CA-based business consulting firm...

Briefs: Sensors/Data Acquisition

Innovators at NASA’s Glenn Research Center have developed advanced hydrogen and hydrocarbon gas sensors capable of detecting leaks, monitoring emissions, and providing in situ...

Application Briefs: Energy

As more connected devices enter the market and see wider adoption by an ever increasing number of industries, the Internet of Things (IoT) is rapidly expanding.

Briefs: Imaging
CubeSat-Compatible, High-Resolution, Thermal Infrared Imager

A small, adaptable, and stable thermal imaging system was developed that can be flown on an aircraft, deployed on the International Space Station as an attached payload, launched on a ride-share as an entirely self-contained 3U CubeSat, flown on a small satellite, or be a co-manifested...

Briefs: Photonics/Optics

Type-II interband cascade lasers (ICLs) based on the GaSb material system represent an enabling technology for laser absorption spectroscopy in the 3-to-5-μm...

Briefs: Physical Sciences
Miniaturized Schottky Diode Sensors for Hydrogen and Hydrocarbon Detection at High Temperatures

A miniaturized Schottky diode hydrogen and hydrocarbon sensor with the structure of catalytic metal-metal oxide-silicon carbide (SiC) has been developed. The major innovation of this work is the use of the metal oxide, palladium oxide...

Briefs: Physical Sciences

A miniaturized amperometric electro-chemical (solid electrolyte) carbon dioxide (CO2) sensor using a novel and robust sensor design has been...

Briefs: Physical Sciences

Wildfires that start in backcountry areas sometimes burn for hours before being detected and reported. Satellites offer a vantage point from which infrared sensors can detect fires. Individual satellites...

Briefs: Physical Sciences
Intensity-Calibrated Hydrogen Flame Spectrum

The National Aeronautics and Space Administration (NASA) uses large quantities of liquid hydrogen and has expended significant effort in the development, testing, installation, and maintenance of hydrogen fire detectors based on ultraviolet, near-infrared, mid-infrared, and/or far-infrared flame...

Briefs: Information Technology
Multiple-Frame Detection of Subpixel Targets in Thermal Image Sequences

The new technology in this approach combines the subpixel detection information from multiple frames of a sequence to achieve a more sensitive detection result, using only the information found in the images themselves. It is taken as a constraint that the method is...

Briefs: Information Technology
Onboard Science and Applications Algorithm for Hyperspectral Data Reduction

An onboard processing mission concept is under development for a possible Direct Broadcast capability for the HyspIRI mission, a Hyperspectral remote sensing mission under consideration for launch in the next decade. The concept would intelligently spectrally and...

Briefs: Materials
Detection of Carbon Monoxide Using Polymer-Composite Films With a Porphyrin-Functionalized Polypyrrole

Post-fire air constituents that are of interest to NASA include CO and some acid gases (HCl and HCN). CO is an important analyte to be able to sense in human habitats since it is a marker for both pre-fire detection and post-fire cleanup.

Briefs: Physical Sciences
Advanced Fire Detector for Space Applications

A document discusses an optical carbon monoxide sensor for early fire detection. During the sensor development, a concept was implemented to allow reliable carbon monoxide detection in the presence of interfering absorption signals.

Briefs: Energy

An ambient temperature oxygen microsensor, based on a Nafion polymer electrolyte, has been developed. A challenge in the operation of Nafion-based...

Articles: Photonics/Optics

Generally speaking, sensor manufacturers are driven to improve performance (i.e. offering greater sensitivity, smaller packages, more features) and lower costs. The prioritization of these...

Briefs: Physical Sciences
Multi-Parameter Aerosol Scattering Sensor

This work relates to the development of sensors that measure specific aerosol properties. These properties are in the form of integrated moment distributions, i.e., total surface area, total mass, etc., or mathematical combinations of these moment distributions. Specifically, the innovation involves two...

Briefs: Electronics & Computers
Amperometric Solid Electrolyte Oxygen Microsensors With Easy Batch Fabrication

There is a great need for oxygen microsensors for aerospace and commercial applications. Current bulk or thick-film solid electrolyte oxygen sensors have the disadvantages of being large in size, high in power consumption, difficult to batch-fabricate, and high in...

Articles: Manufacturing & Prototyping

(Winner of an HP Workstation)

Digital Window Distributed Imaging Camera

Ellen Cargill, Peter Jones, and Dennis Purcell

Boston, MA


Briefs: Manufacturing & Prototyping
Processing Nanostructured Sensors Using Microfabrication Techniques

Standard microfabrication techniques can be implemented and scaled to help assemble nanoscale microsensors. Currently nanostructures are often deposited onto materials primarily by adding them to a solution, then applying the solution in a thin film. This results in random...

Articles: Nanotechnology

The 2008 NASA Tech Briefs National Nano Engineering Conference (NNEC), be held November 12-13 at the Boston Colonnade Hotel, is for design engineers who want to know what’s real, what’s close to...

Briefs: Electronics & Computers

The Wildfire Airborne Sensing Program (WASP) is engaged in a continuing effort to develop an improved airborne instrumentation system for sensing wildfires. The system could also be used for...

Briefs: Photonics/Optics

A fiber-optic sensor system has been developed that can remotely measure the concentration of molecular oxygen (O2), nitrogen...

Briefs: Photonics/Optics
Multiple-Beam System for Fast Raman Spectrometry

A developmental instrumentation system rapidly acquires full Raman spectra of gas molecules. The system is based on the principle of multiplex coherent antistokes Raman spectroscopy (CARS) and incorporates improvements over prior multiplex CARS systems. Among the potential applications for systems...