| Patent application number | Description | Published |
|---|
| 20080239885 | Magnetic Head for a Magneto-Optical Device and Magneto-Optical Device - A magnetic head for a magneto-optical device comprises a plurality of substantially parallel planar layers, including at least one layer comprising a coil formed by a plurality of turns an electrically conductive winding, the turns lying substantially in a plane defined by the layer and the winding being substantially centered on a central axis perpendicular to the plane, and further including a yoke layer comprised of an anisotropic flux guiding material. The yoke layer comprises a plurality of segments ( | 10-02-2008 |
| 20090128819 | LOW COST APPARATUS FOR DETECTION OF NITROGEN-CONTAINING GAS COMPOUNDS - Nitrogen-containing compounds are detected by chemically converting ( | 05-21-2009 |
| 20100011836 | CAVITY-ENHANCED PHOTO ACOUSTIC TRACE GAS DETECTOR WITH IMPROVED FEEDBACK LOOP - A photo acoustic trace gas detector ( | 01-21-2010 |
| 20100043526 | PHOTO ACOUSTIC DETECTOR WITH IMPROVED SIGNAL PROCESSING - A photo, acoustic detector ( | 02-25-2010 |
| 20100045990 | OSCILLATOR ELEMENT FOR PHOTO ACOUSTIC DETECTOR - An oscillator element ( | 02-25-2010 |
| 20100185112 | DEVICE FOR ANALYSING AN INFLAMMATORY STATUS OF A RESPIRATORY SYSTEM | 07-22-2010 |
| 20100192669 | PHOTO ACOUSTIC SAMPLE DETECTOR WITH LIGHT GUIDE - A photo acoustic sample detector ( | 08-05-2010 |
| 20110001964 | PHOTO ACOUSTIC SAMPLE DETECTOR WITH BACKGROUND COMPENSATION - A photo acoustic detector for detecting a concentration of a sample in a sample mixture, the photo acoustic detector has a light source for producing a light beam for exciting molecules of the sample, a light modulator for modulating an intensity of the light beam for generating pressure variations in the sample mixture, an amplitude of the pressure variations being a measure of the concentration of the sample, and an acoustic cell with an acoustic resonator for amplifying the pressure variations. Furthermore, the photo acoustic detector has a resonant pickup element for converting the pressure variations inside the acoustic resonator into a detector signal, and a processing section for processing the detector signal to generate 1) a sample signal caused by the pressure variations, and 2) a background signal caused by direct excitation of the pickup element by the light beam. The acoustic cell and the pickup element are arranged in such a way that a phase difference between the background signal and the sample signal is close to 90 degrees. | 01-06-2011 |
