New sensor for measuring electric field strength

Accurately measuring electric fields is important in a variety of applications, such as weather forecasting, process control on industrial machinery, or ensuring the safety of people working on high-voltage power lines. Yet ...

A levitated nanosphere as an ultra-sensitive sensor

Sensitive sensors must be isolated from their environment as much as possible to avoid disturbances. Scientists at ETH Zurich have now demonstrated how to remove from and add elementary charges to a nanosphere that can be ...

Researchers develop battery-less chemical detector

(PhysOrg.com) -- Unlike many conventional chemical detectors that require an external power source, Lawrence Livermore researchers have developed a nanosensor that relies on semiconductor nanowires, rather than traditional ...

Finding reserves on the electrical grid

The weather determines how much energy wind turbine systems provide. The same applies to power line capacity. On cold and stormy days, this capacity is higher than on days with no wind and high mid-summer temperatures. An ...

This new sensor can detect mercury ions with just a tap

Although many measures are in place to prevent contamination, pollutants such as mercury and lead can still end up in the environment. Sensing them often requires complicated processes, but what if you could detect them with ...

How plants sense electric fields

An international group of researchers has pinpointed the sensor plants use to sense electric fields. A beneficial side effect: Their work could contribute to the understanding of how the Ebola virus enters human cells.

MEMS thermal sensor detects pre-atherosclerotic lesions

A new study published in the Annals of Biomedical Engineering shows that a MEMS thermal sensor deployed by an angiogram catheter can detect the earliest stages of atherosclerosis. The MEMS thermal sensor used convective heat ...

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