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Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Analytical Pixels Technology-apix Technology

Joshua B Whiting

Laurent Duraffourg

Eric Colinet

Philippe Andreucci

Mélanie Petitjean

Edward B Myers

Pierre Puget

Charles-Marie Tassetti

Mickael Lee Roukes

Peter Thomas Stevens

Alex C Barker

A gas analysis system includes a fluidic channel for flow of a gas to be analyzed, a detector in the channel and adapted for measuring interactions of the gas with the detector, the detector including a resonator of the electromechanical nanosystem (NEMS) type and a heating system for heating a part of the detector, an actuation device for vibrationally actuating the resonator according to an excitation signal applied to an input of the detector, a detection device adapted for providing an output electric signal representative of the vibrations of the resonator, a read-out device connected to an input of the detector and configured for simultaneously measuring, from the output signal of the detector, the change in resonance frequency and the change in amplitude of the vibrations at the resonance frequency of the resonator, and a processing device configured for determining from the changes a fluidic characteristic of the gas.

System and method for analyzing a gas

The invention relates to a gas analysis system comprising, from upstream to downstream:

Gas analysis system comprising a gas spectrometer equipped with a micro-reflectron

Method and apparatus for recording images at a scene in a panoramic manner enabling subsequent reproduction at remote display devices, and particularly enabling selection of a particular viewing angle at each display device without interfering with selection of viewing angles at other display devices. A stationary camera is operated at the scene being recorded, with a rapidly rotating mirror directing optical images successively from a three hundred sixty degree pattern about the axis of the lens of the stationary camera. Rotational speed is selected such that images are captured at frequencies assuring that reproduction of the images will yield continuous, smooth moving images from one selected viewing angle. The optical images are directed into the camera and then rendered into digital form and entered into memory. Shutter speed or rate and timing of data conversion or entry into memory is controlled to assure capture of optical images repeatedly from several predetermined different viewing angles, as recorded at the camera. Data entered into memory is subsequently transmitted for reproduction at a plurality of remotely located display devices such as CRTs. The operator of each CRT can control his or her CRT to display aspects of images, such as selecting one of the viewing angles, zooming, and changing viewing angles, independently of images displayed at other CRTs.

Panoramic digital camera system

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Sandy, UT, United States of America

Joshua B Whiting