Test & Measurement

Access our comprehensive library of technical briefs on test and measurement, from engineering experts at NASA and government, university, and commercial laboratories.

Briefs : Medical
Microchip Produces High-Contrast OCT Imagery
Microchip Produces High-Contrast OCT Imagery
For disease diagnosis, a microchip maps the back of the eye.
Microchip Produces High-Contrast OCT Imagery
Briefs : Imaging
The Planetary Tides Simulation Facility for Simulation Tidal Strain in Planetary Ice Analogs
The Planetary Tides Simulation Facility for Simulation Tidal Strain in Planetary Ice Analogs
Applications include modeling of tidal stress response of icy satellites as well as fatigue of terrestrial ice shelves.
The Planetary Tides Simulation Facility for Simulation Tidal Strain in Planetary Ice Analogs
Briefs : Green Design & Manufacturing
Chromium Removal from PVC Filters
The process does not cause any structural changes to the PVC filter membrane.
Briefs : Mechanical & Fluid Systems
Shape Sensing Innovations Dramatically Improve Structural Design Tools
Shape Sensing Innovations Dramatically Improve Structural Design Tools
These advances are useful for transportation, infrastructure, and aerospace.
Shape Sensing Innovations Dramatically Improve Structural Design Tools
Briefs : Sensors/Data Acquisition
Acoustic Interactions Change Materials at the Atomic Level
Acoustic Interactions Change Materials at the Atomic Level
Interaction of sound and light reveals new information of a crystal's quantum properties.
Acoustic Interactions Change Materials at the Atomic Level
Briefs : Test & Measurement
Dynamic Mechanical Strain-Induced Temperature Gradient Coating
Dynamic Mechanical Strain-Induced Temperature Gradient Coating
The non-destructive coating has applications in structural health monitoring, aerospace, automotive, and military/defense.
Dynamic Mechanical Strain-Induced Temperature Gradient Coating
Briefs : Green Design & Manufacturing
Process Turns Sand and Plant Materials into a Water Filtration Tool
Process Turns Sand and Plant Materials into a Water Filtration Tool

According to the United Nations, 2.1 billion people lack access to safely managed drinking water services and the majority live in developing nations. A process was...

Process Turns Sand and Plant Materials into a Water Filtration Tool
Briefs : Aerospace
Pinpointing Consumption “Sweet Spot” Makes Formation Flight More Fuel-Efficient
Pinpointing Consumption “Sweet Spot” Makes Formation Flight More Fuel-Efficient
A new method of estimating the optimal trailing aircraft position in a formation increases fuel savings.
Pinpointing Consumption “Sweet Spot” Makes Formation Flight More Fuel-Efficient
Briefs : Photonics/Optics
Magneto-Optic Biosensor Using Bio-Functionalized Magnetic Nanoparticles
Magneto-Optic Biosensor Using Bio-Functionalized Magnetic Nanoparticles
This technology is a novel, rugged, and economic diagnostic and sensor platform technology.
Magneto-Optic Biosensor Using Bio-Functionalized Magnetic Nanoparticles
Briefs : Materials
Optical Window for Far-IR Instruments Using Thin TOPAS® Film
Optical Window for Far-IR Instruments Using Thin TOPAS® Film
This thin film can be used for ground-based and airborne applications in aircraft, balloons, and other flight missions.
Optical Window for Far-IR Instruments Using Thin TOPAS® Film
Briefs : Sensors/Data Acquisition
Wirelessly Controlled Ingestible Capsule
Wirelessly Controlled Ingestible Capsule
This electronic pill can relay diagnostic information or release drugs in response to smartphone commands.
Wirelessly Controlled Ingestible Capsule
Briefs : Medical
System Allows Diabetics to Monitor Blood Sugar Without Drawing Blood
System Allows Diabetics to Monitor Blood Sugar Without Drawing Blood
The self-contained technology is similar to the smart watches that monitor heart rate.
System Allows Diabetics to Monitor Blood Sugar Without Drawing Blood
Briefs : Test & Measurement
Micro Device Detects Ebola Virus Using Bio-Sensors
Micro Device Detects Ebola Virus Using Bio-Sensors
The device can be used to pre-screen for the virus using gene-editing assays before those infected can travel and expose others.
Micro Device Detects Ebola Virus Using Bio-Sensors
Briefs : Electronics & Computers
SiC-Based Microstructures for Sensors
SiC-Based Microstructures for Sensors
Ultra-thin SiC microstructures enable batch fabrication of MEMS, NEMS, pressure sensors, and biosensors.
SiC-Based Microstructures for Sensors
Briefs : Materials
Design Treatment for Advanced Metals Enables Easier Machining
Design Treatment for Advanced Metals Enables Easier Machining
Applying a surface-active agent makes metal easier to cut and shape into parts and pieces.
Design Treatment for Advanced Metals Enables Easier Machining
Briefs : Test & Measurement
MMOD Impact Detection and Location
MMOD Impact Detection and Location
This system uses fiber optic strain sensing to detect and locate micrometeoroid/orbital debris.
MMOD Impact Detection and Location
Briefs : Photonics/Optics
Embedded Fiber Optic Sensors (EFOS)
Embedded Fiber Optic Sensors (EFOS)

Current laser interferometry pressure pulse detection techniques use the shock-induced change in index of refraction to track detonation and/or shock fronts in a single fiber optic by reflecting laser...

Embedded Fiber Optic Sensors (EFOS)
Briefs : Electronics & Computers
Li-ion Cell Calorimeter Makes Commercial Lithium Batteries Safer
Li-ion Cell Calorimeter Makes Commercial Lithium Batteries Safer

Innovators at NASA Johnson Space Center have developed a calorimeter that is able to measure the total heat generated when specific types of Lithium-ion (Li-ion) cells are...

Li-ion Cell Calorimeter Makes Commercial Lithium Batteries Safer
Briefs : Mechanical & Fluid Systems
Human Torso Simulator
Human Torso Simulator
The simulator could help in the development of new back braces.
Human Torso Simulator
Briefs : Electronics & Computers
Technique Uses X-Rays to Detect Defective Computer Chips
Technique Uses X-Rays to Detect Defective Computer Chips
This method also reverse-engineers computer chips to detect the chip’s purpose.
Technique Uses X-Rays to Detect Defective Computer Chips
Briefs : Aerospace
Washable Sensor Can Be Woven Into Materials
Washable Sensor Can Be Woven Into Materials
The device could impact composites manufacturing and health monitoring.
Washable Sensor Can Be Woven Into Materials
Briefs : Energy
Undercooled Metal Technology for Flexible Electronics
Undercooled Metal Technology for Flexible Electronics

Undercooled metal technology was developed that features liquid metal (in this case, Field's metal, an alloy of bismuth, indium, and tin) trapped below its melting point in polished,...

Undercooled Metal Technology for Flexible Electronics
Briefs : Imaging
Diamond Technology Enables Low-Cost Medical Imaging
Diamond Technology Enables Low-Cost Medical Imaging

Magnetic resonance imaging (MRI) machines are employed to locate cancerous tumors and aid in the development of treatment plans, while nuclear magnetic resonance (NMR) machines are used to...

Diamond Technology Enables Low-Cost Medical Imaging
Briefs : Test & Measurement
X-ray Measurement Approach Could Improve CT Scanners

A new measurement approach could lead to a better way to calibrate computed tomography (CT) scanners, potentially streamlining patient treatment by improving communication among doctors.

Briefs : Test & Measurement
Web-Based Technology Assesses Structural Health
Web-Based Technology Assesses Structural Health

Understanding how cars, planes, bridges, and other structures handle vibrations and dynamic loads can be critical to their design and performance. Researchers have developed a new way to...

Web-Based Technology Assesses Structural Health
Briefs : Materials
Simulating Softness for Haptic Interfaces
Simulating Softness for Haptic Interfaces

Researchers have developed a formula that enables them to recreate different levels of perceived softness. Based on the results from their experiments, they created equations that can calculate how...

Simulating Softness for Haptic Interfaces
Briefs : Imaging
Tiny Lensless Endoscope Captures 3D Images of Objects Smaller Than a Cell
Tiny Lensless Endoscope Captures 3D Images of Objects Smaller Than a Cell

Researchers have developed a new self-calibrating endoscope that produces 3D images of objects smaller than a single cell without a lens or any optical, electrical, or...

Tiny Lensless Endoscope Captures 3D Images of Objects Smaller Than a Cell
Briefs : Electronics & Computers
Battery-Free Sensor for Underwater Use
Battery-Free Sensor for Underwater Use

To investigate oceans, researchers aim to build a submerged network of interconnected sensors that sends data to the surface. Supplying constant power to scores of sensors designed to stay for long...

Battery-Free Sensor for Underwater Use
Briefs : Test & Measurement
Wearable Motion Sensors Measure Fetal Heartbeat

A technique was developed that could allow expectant parents to hear their baby’s heartbeat continuously at home with a non-invasive and safe device that is potentially more accurate than any fetal heartrate monitor currently available in the market.

Briefs : Manufacturing & Prototyping
Method Produces Three-Dimensional, Curved Electronics
Method Produces Three-Dimensional, Curved Electronics

Contact lenses that can monitor the wearer’s health and correct eyesight use embedded electronics. These, and other curved devices such as solar cells and electronics, could be...

Method Produces Three-Dimensional, Curved Electronics
Question of the Week
Would You Cook with ‘Julia?’