Nondestructive testing (NDT) probes and sensors include eddy current, ultrasonic, induction, hall effect and EMAT and other specialized transducers. They enable materials, components, systems and ...

These sound waves are then focused on a target and the echo is read by sensors to determine a specific variable ... Electromagnetic acoustic transducers (EMAT) use a magnetorestrictive or eddy current ...

You can save a lot of money and hassle by installing a smart water sensor. The best models we've tested immediately alert you to leaks and even shut off the water ...

The types of magnetic sensors that are currently available. How the magnetic sensors work. Applications for the different magnetic sensors. Position sensors enable a variety of functions and ...

We liked the YoLink Smart Window Door Sensors, LoRa ¼ Mile Range best and were impressed with its ability to transmit up to a quarter of a mile away. The best alarm for a particular shopper will ...

Just like smartphone cameras, these sensors have a finite resolution. The higher the resolution, the finer details the sensor can discern about your finger, increasing the level of security.

Optical sensors are a broad class of device for detecting light intensity. This can be just a simple component for notifying when ambient light levels rise above or fall below a prescribed level ...

But a push to develop and deploy quantum sensors for navigation as a more accurate, less vulnerable alternative to GPS could change things. “In order to really succeed, we have to build the ...

Both sensors measure rate of change; they just measure the rate of change for different things. In practice, that means that an accelerometer will measure the directional movement of a device but ...

Wearable sensors can expedite personalized medicine by integrating sensors into our daily lives. This Perspective discusses mechanical and electrochemical sensors, including their operating ...