Wearable health sensors such as photoplethysmography (PPG) wristbands, ECG patches and multi-modal biometric devices are typically developed and calibrated under controlled laboratory conditions.

Wrist pulse oximeters can look similar, making it hard to decide which one to buy. This in-depth guide covers everything you need to know to find your best fit.

A biomechanical well plate inspired by the pressure-sensing lateral line of fish can wirelessly monitor the pulse of multiple ...

Abstract: Aiming at the problem that it is difficult to achieve non-destructive and accurate evaluation of metal coating thickness, a new measurement model based on swept-frequency eddy current is ...

When living cells grow, divide or respond to drugs, they give off tiny amounts of heat that offer information about what the cells are doing. But because these heat signals are so vanishingly small, ...

New analysis explains how outdated concrete testing slows road and bridge projects, and what Iowa’s specification update means for the rest of the country. With true in-place data, you can make ...

A detailed view of adidas TRIONDA FIFA World Cup match balls prior to the international friendly match between England and New Zealand at Raymond James Stadium on June 06, 2026 in Tampa, Florida.

Abstract: This letter presents the design and validation of an ultra-wideband microwave reflection sensor for plasma environment data acquisition. The sensor employs a four-ridged horn antenna ...

US Army scientists have demonstrated a new quantum sensor that can measure the full 3D direction of radio-frequency electromagnetic fields, a milestone that could reshape how signals are detected on ...