RAILWAY AGE MARCH 2022 ISSUE: Since 2020, Transportation Technology Center, Inc. (TTCI) has been conducting tests to evaluate the capability of electromagnetic acoustic transducer (EMAT) ...

RAILWAY AGE MARCH 2022 ISSUE: Welcome to “Timeout for Tech with Gary T. Fry, Ph.D., P.E.” Each month, we examine a technology topic that professionals in the railway industry have asked to learn more ...

A scanner ensures that ultrasonic probes stay properly aligned as they move over the surface of the inspection area. Scanners with motorized actuator arms, suction cups and adjustable, flexible tracks ...

Dystopian corporate surveillance threats today come at us from all directions. Companies offer “always-on” devices that listen for our voice commands, and marketers follow us around the web to create ...

Ultrasonic bushcrickets could be using a similar method to communicate as that used by whales, according to newly published research. Katydid species that have extreme ultrasonic frequencies face a ...

Ultrasound refers to any audio signal above the range of human hearing. Generally that’s accepted as 20 kHz and up. Unlike electromagnetic signals, ultrasonics are still operating in a medium – ...

"A sonographer will take down a usual ultrasound, but we don't charge them for a second 3D image. We'll charge them for a 3D and 4D ultrasound if there's an indication of a birth defect, and we're ...

Dystopian corporate surveillance threats today come at us from all directions. Companies offer "always-on" devices that listen for our voice commands, and marketers follow us around the web to create ...