The intrinsic advantages of optical sensor technology are very appealing for high voltage applications and can become a valuable asset in a new generation of smart grids. In this paper the authors present a review of optical sensors technologies for electrical current metering in high voltage applications. A brief historical overview is given together with a more detailed focus on recent develo...

* 1301 Beal Ave., Ann Arbor, MI 48109, USA; Tel: (734) 763-6132, E-mail: [email protected] ABSTRACT This paper reports microdischarge-based pressure sensors which operate by measuring the change in spatial current distribution of pulsed DC microdischarges. The sensors are composed of 3D arrays of horizontal bulk metal electrodes embedded in quartz substrates. Microdischarge-based pressure sens...

There have been many proposals to use xenon-based molecular sensors in biological settings. Fundamental to understanding the properties of these sensors in vivo is characterizing their behavior in lipid environments. We report the investigation of xenon-based molecular sensors in suspensions of lipid vesicles with a size comparable to cells. We detail spectroscopic properties of sensors associa...

Solution-processed phototransistors can substantially advance the performance of image sensors. Phototransistors exhibit large photoconductive gain and a sublinear responsivity to irradiance, which enables a logarithmic sensing of irradiance that is akin to the human eye and has a wider dynamic range than photodiode-based image sensors. Here, we present a novel solution-processed phototransisto...

Optical techniques developed for sensing purposes proved to be essential in many application fields, ranging from aerospace, industry, process control, to security, and also medicine. The capabilities of these sensors are generally enhanced when a bulk-optical configuration is replaced by optical fibre technology. In the past few years, research programmes and also the market for fibre sensors ...

A freestanding microchannel, with integrated temperature sensors, has been developed for highpressure . flow studies. These microchannels are approximately 20pm x 2pm x 4400pm, and are suspended above 80 pm deep cavities, bulk micromachined using BrF3 dry etch. The calibration of the lightly boron-doped thermistor-type sensors shows that the resistance sensitivity of these integrated sensors is...