Most wireless technologies to be used for industrial asset tracking are nowhere near the point of offering plug-and-play operation. Before you decide to use a system based on RSSI, RuBee, or UWB in a RTLS, make sure you know what you're signing up for.More>>

Single photons are elementary particles that are arguably the most tangible, yet some of the most difficult to detect and characterize as single entities. Techniques to count single photons require optical detectors with linear operation, high gain, wide bandwidth and low noise. This article will...More>>

Last month we discussed how IMS and DMS are used for trace chemical detection. Now we consider how the two technologies can be used in tandem to achieve greater selectivity and sensitivity and fewer false positives.More>>

By using an indirect current-feedback topology, instrumentation amplifiers can avoid some of the pitfalls inherent in using three op amp instrumentation amplifiers powered from single supply voltages.More>>

The proportion of industry sales varies widely among sensing technologies, with proximity sensors taking the largest market share. While the smallest share belongs to linear displacement devices, this category is forecast to experience the highest growth.More>>

The first installment of this two-part series discusses ion mobility spectroscopy (IMS), the leading contender for fast and reliable detection of trace chemicals, and differential ion mobility spectroscopy (DMS), a related technology that provides faster, smaller and more sensitive sensors capable...More>>

Wildfires, river basins, tsunami alerts, and environmental risk management are just some of the projects using OGC's interoperability framework for Web-based access and control of sensors and sensor data.More>>

Improved noncontact electrodes and noninvasive hybrid biosensors enable fast, reliable readings of hearts and brains, without requiring contact with the skin.More>>

Clever sensors, beefed-up wireless sensor networks, and smart armor: just a few of the winners of the 2007 Best of Sensors Expo Awards.More>>

A new architecture is blurring the distinction between successive approximation register (SAR) and ΔΣ ADCs, creating devices that couple high resolution with high throughput, achieving exceptional measurement accuracy and ease of integration.More>>