Keyword: Humidity

Articles: Imaging
A heat source near the optical path can introduce image warping that locally shifts the position of the image content. Learn how to fix the flaw.
Briefs: Sensors/Data Acquisition
Self-powering, color-changing humidity sensors are applicable to various fields including smart windows, health care, and safety management.
Briefs: Sensors/Data Acquisition
This technology is useful for energy, industrial, and aerospace applications.
Briefs: Robotics, Automation & Control
The sensor has applications in fields such as robotics, healthcare, and security.
Application Briefs: Materials
Roscid Technologies
Woburn, MA
https://www.roscidtechnologies.com

Roscid Technologies has agreed to licensing terms with NASA to commercialize a NASA-designed humidity sensor. Roscid...

Articles: Sensors/Data Acquisition

It is well known from astronomical imaging that various atmospheric conditions and weather effects have an impact on image quality. This is due to local changes of the refractive index of the...

Application Briefs: Aerospace
Humidity Measurement Devices for Mars Are Ready for Final Testing
Vaisala Corp. Helsinki, Finland
www.vaisala.com

The Finnish Meteorological Institute (FMI) is delivering pressure and humidity measuring devices based on Vaisala technology for use on NASA’s next robotic mission to Mars — the Mars 2020 rover. The pressure measurement...

Briefs: Electronics & Computers

Techniques to prevent frost and ice formation on surfaces rely heavily on heating or on liquid chemicals that need to be repeatedly reapplied because they easily wash away. Even advanced...

Briefs: Materials

Anyone who skis, wears glasses, uses a camera, or drives a car is familiar with the problem: Coming into a humid environment from the cold causes eyewear, camera lenses, or windshields to...

Briefs: Photonics/Optics

The detection and localization of gas releases, such as methane from leaking natural gas pipelines or nitrogen oxides from failing electrical equipment, require high sensitivity to the target gas and insensitivity...

Briefs: Photonics/Optics
Configuration Enables RFID Tags to Work as Sensors

The detection and localization of gas releases, such as methane from leaking natural gas pipelines or nitrogen oxides from failing electrical equipment, require high sensitivity to the target gas and insensitivity to non-target gases. Infrared (IR) absorption spectroscopy gives highly specific...

Application Briefs: Defense

Optics are employed in virtually every area of military operations, from vision systems and target designators used by troops on the ground, through guidance systems utilized in...

Briefs: Materials
Water-Repellent Nanotextures Possess Anti-Fogging Capability

Some insect bodies have evolved the ability to repel water and oil, adhere to different surfaces, and eliminate light reflections. Scientists have been studying the physical mechanisms underlying these properties found in nature and mimicking them to design materials for use in...

Briefs: Medical

Aerogels are among the lightest materials in the world, and are highly porous with strong absorption capacity and low thermal conductivity. These unique properties make aerogels highly...

Briefs: Test & Measurement

Crew time on the International Space Station (ISS) is extremely limited for any operations on science payloads. Autonomous science experiments in small, self-contained, cubical payloads are highly desirable...

Briefs: Imaging

The market for smart security access systems is expected to grow rapidly, reaching nearly $10 billion by 2022. Today's smart security access systems mainly rely on traditional techniques...

Briefs: Sensors/Data Acquisition

Researchers at NASA's Marshall Space Flight Center have developed a solid-state humidity sensing element that offers ultra-high sensitivity across a wide range of humidity levels. The sensing element is...

Briefs: Mechanical & Fluid Systems
Novel Vent Design Features Variable Flow Control and Rain Protection

NASA’s Marshall Space Flight Center scientists have designed a vent that can be useful for purging closed compartments, while preventing backflow and foreign object entry. The technology uses a system of configurable devices to provide variable flow control and prevent water,...

Articles: Electronics & Computers
Integrated Multi-Color Light Emitting Device Made with Hybrid Crystal Structure Sang Choi,
NASA Langley Research Center;
Yeonjoon Park,
National Institute of...
Briefs: Software
Numerical Method to Predict the Evaporation Time of a Water Droplet Attached to a Solid Boundary in the Presence of Fluid Flow

One of the objectives of the In-Situ Resource Utilization (ISRU) RESOLVE project was to extract water from lunar regolith by heating and then capturing and quantifying the released water. A potentially large error in...

Briefs: Green Design & Manufacturing
WX Subsystem Weather Station

The WX Subsystem Weather Station was designed for use as part of the Weather Instrumentation (WX) Subsystem for the Constellation Program (CxP) to be implemented in the Launch Complex 39B at Kennedy Space Center. The weather stations need to be rugged, robust, and reliable. Although this equipment is not to be...

Briefs: Sensors/Data Acquisition
Real-Time Oil Reservoir Evaluation Using Nanotechnology

This innovation is a method and system for evaluating the status and response of a mineral-producing field (e.g., oil and/or gas) by monitoring selected chemical and physical properties in or adjacent to a well site headspace. Nanotechnology sensors and other sensors are provided for one or...

Briefs: RF & Microwave Electronics
Wideband, Dual-Polarized, Ultra-Low-Noise Focal Plane Array Feed for Active/Passive Microwave Remote Sensing

NASA missions utilize active, passive, or both, microwave sounders with a large reflector antenna as an important component. In most of these applications, design engineers have realized that desirable science requirements (spatial and...

Briefs: Electronics & Computers

One of the most common causes of electronics failure is moisture. Because water and electronics do not mix well, several strategies exist to protect mission-critical components from...

Briefs: Materials
Advanced Supported Liquid Membranes for CO‚2 Control in EVA Applications

NASA has a clear need to develop new technology in support of its future goals, including missions beyond low-Earth orbit, the possible development of lunar outposts, and the eventual exploration of Mars. As these missions develop, it is anticipated that crew members will...

Briefs: Mechanical & Fluid Systems

The probe and its mounting fixture are critical parts of the health monitoring of steam pipes. A high-temperature, piezoelectric transducer generates and receives ultrasonic...

Briefs: Photonics/Optics
Thermal Cycle Qualification of Radiated Solar Arrays for 50 to 133 K Temperatures in Vacuum

Solar arrays (radiated or non-radiated) and other technologies are candidate materials for projects in JPL. Some of the projects need to qualify these potential technologies to cryogenic extreme temperatures (from 133 to 50 K or lower). Those technologies...

Articles: Test & Measurement

There are a variety of reasons we need to know the temperature of an object or a process — to prevent product damage, ensure sterilization, determine biological health, ensure...

Briefs: Sensors/Data Acquisition
Nanosensors for Medical Diagnosis

Many diseases are accompanied by characteristic odors, and their recognition can provide diagnostic clues, guide the laboratory evaluation, and affect the choice of immediate therapy. The study of the chemical composition in human breath using gas chromatography/mass spectrometry (GC/MS) has shown a correlation...