Sensors & Test

Ultra-Sensitive Lead Detector Could Improve Water Quality Monitoring

Engineers have developed an ultra-sensitive sensor made with graphene that can detect extraordinarily low concentrations of lead ions in water. The device achieves a record limit of detection of lead down to the femtomolar range, which is one million times more sensitive than previous sensing technologies. Read on to learn more.

Smart Full-Body Fitness Tracking

With the new Smart Connected Sensors platform from Bosch Sensortec, you can track more than just steps. You can program complex whole-body movements and accurately track them during physical workouts or while you are going through a rehabilitation or physical therapy regimen. Read on to learn more.

Machine Monitoring Enables Control of Cutting Forces

Reliable machine monitoring yields valuable real-time insights into ongoing processes; it is the basis for dependable, productive, and reproducible manufacturing and it helps machine operators to reach well-founded decisions on both short- and long-term improvements. Read on to learn more about it.

Optimizing Fluid Sensors for Industrial Process Measurement

When processing pharmaceutical products, how do you tell if a fluid is of high quality? If you are working with crude oil, how do you know how much you are extracting? If you are transporting water, how do you know the flow rate? Such questions, which impact confidence and bottom lines for water, food, life sciences, and oil and gas companies, are addressed by the manufacturers of flowmeters that are installed in pipelines and other equipment. Read on to learn more.

An Algorithm for Making Robots Safer Around Humans

A new algorithm may make robots safer by making them more aware of human inattentiveness. In simulations, it improved safety by about a maximum of 80 percent and efficiency by about a maximum of 38 percent compared to existing methods. Read on to learn more about it.

A New System for Shape and Contact Detection of Continuum Robots

The sensing and control principles used in this framework could lead to new tactile sensors that can be attached to any existing robotics system, offering new sensing and control paradigms for safe human-robot interaction without altering the robot’s original design. Read on to learn more.

Enhancing EV Battery Design with Advanced Testing

This article explores how advanced testing using end-to-end EV battery test systems can improve the quality and performance of EV battery designs. Read on to learn more.

How Much Do You Know About Op Amps?

Op amps have been ubiquitous for decades, originally built with vacuum tubes, then discrete transistors, then monolithic IC chips, such as the µA741, which is still in wide use today. How much do you know about op amps? Test your knowledge with this quiz.

Medium-Voltage Converters Can Replace Grid Transformers

To electrify everything from vehicles to heating systems to stovetops, the U.S. grid must expand by about 57% and get more flexible, too. Solar and wind energy are the renewables most...

Butterfly-Inspired AI Technology

Professor Saptarshi Das and his team at Penn State University learned that when it comes to mating, two things matter for Heliconius butterflies: the look and the smell of their potential partner. This led them to think about how multiple sensory inputs could enable more efficient use of AI.

Force Testing Profile Stings

A group of graduate students used a force measurement system to test the structural capacity of custom profile stings during high-threshold testing in a wind tunnel.

Autonomous Aerial Robots Prioritize Rooms in Multiroom Exploration

An estimated 100 earthquakes worldwide cause damage each year. This damage includes collapsed buildings, downed electrical lines and more. For first responders, assessing...

Test Your Knowledge About AI Adoption in Engineering

With advancements like large language models, we are seeing increased integration of artificial intelligence (AI) into engineering processes. Design engineers of advanced machines and systems such as robots, medical devices, automotive components, and manufacturing lines, are already using AI to streamline design and production processes. How much do you know about AI adoption in engineering? Test your knowledge with this quiz.

Seeing Is Communicating

The Eyegaze Edge system developed in collaboration with NASA is an eye-tracking technology that makes 'talking' possible for people who can’t.

Unique Amplifier Could Change Optical Communication

Researchers at Chalmers University of Technology have developed an optical amplifier that they expect will revolutionize both space and fiber communication.

Smart Glove Can Boost Hand Mobility of Stroke Patients

A new groundbreaking “smart glove” is capable of tracking the hand and finger movements of stroke victims during rehabilitation exercises. The glove incorporates a sophisticated network of highly sensitive sensor yarns and pressure sensors that are woven into a comfortable stretchy fabric. Read on to learn more about the smart glove.

Modified VR Tech to Measure Brain Activity

A research team created a noninvasive electroencephalogram (EEG) sensor that was installed in a Meta VR headset that can be worn comfortably for long periods. The EEG measures the brain’s electrical activity during the immersive VR interactions. Read on to learn more.

Wearable Sensors Detect Pathogens, Toxins

Researchers have developed a method to detect bacteria, toxins, and dangerous chemicals in the environment with a biopolymer sensor that can be printed like ink on a wide range of materials — including wearables. Read on to learn more.

Rapidly Testing Stretchable Sensors

Engineers have developed a new technique for making wearable sensors that enables medical researchers to prototype and test new designs much faster and at a far lower cost than existing methods. Read on to learn more.

Videos of the Month

See the videos of the month, including one on ETH’s student-built drone, which will operate free of external and visible propellers; one on a soft robotic hand that combines vision, motor-based proprioception, and soft tactile sensors to identify, sort, and pack a stream of unknown objects; one on the Environmental Toolkit for Expeditionary Operations; and one on how integrating AI into robotic systems can enhance their capabilities and enable them to perform more complex tasks.

New Products

See the new products, including TRIOPTICS' expansion of its OptiCentric® 101 centration measurement system, a new type of laser-based immersion probe, LightSolver's breakthrough in quantum-inspired high-performance computing, Teledyne FLIR's next-generation embedded software for the ITAR-free Boson+ thermal camera module, IDS Imaging Development Systems' all essential camera components for the uEye ACP series, and much more.

Analysis and Simulation of Low-Light INL in CMOS Image Sensors

Conventional sources of INL are well understood, but as pixel array resolution has increased and ADC pitch has consequently been reduced, additional array sources of nonlinearity have become prominent. Read on to learn more.

Researchers Develop New and Improved Camera Inspired by the Human Eye

The camera mimics the involuntary movements of the human eye to create sharper, more accurate images for robots, smartphones, and other image-capturing devices. Read on to learn more about it.

Researchers Use Inkjet Printing to Make a Portable Multispectral 3D Camera

The palm-sized light field camera could improve autonomous driving, classification of recycled materials, and remote sensing. Read on to learn more about it.

Ultra-Narrowband Optical Filters Pushing Boundaries from the UV to the LWIR

Developments in ultra-narrow manufacturing capabilities enable transformative, world-changing, technology. Read on to learn how boundaries are being pushed.

A Quantum Leap for Motion Sensing

Scientists at Sandia National Laboratories are attempting to make a motion sensor so precise it could minimize the nation’s reliance on global positioning satellites. Until recently, such a sensor — a...

Robot Planning Tool Accounts for Human Carelessness

A new algorithm may make robots safer by making them more aware of human inattentiveness.

Improving Traffic Signal Timing with a Handful of Connected Vehicles

Communities could reduce costs and cut vehicle emissions — all in the name of shortening your trip.