Koyilothu
Sarin Anakkat Koyilothu, Bangalore IN
Patent application number | Description | Published |
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20080216558 | Saw based CO2 sensors using carbon nanotubes as the sensitive layer - A surface acoustic wave based CO | 09-11-2008 |
Sarinkumar A. Koyilothu, Bangalore IN
Patent application number | Description | Published |
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20090193897 | COMPOSITION FOR MATERIAL SENSING AND RELATED METHOD AND APPARATUS - A sensor includes a piezoelectric substrate and conductive elements formed in or over the substrate. The sensor also includes a sensing layer formed over the substrate. The sensing layer has one or more properties (such as a mass loading, an electrical property, or a visco-elastic property) that vary based on at least one measurand to be measured by the sensor (such as carbon dioxide). This may affect, for example, a propagation velocity of acoustic waves in the sensor and/or a resonant frequency of the sensor. The sensing layer includes a combination of polyaniline and carbonic anhydrase. The combination of polyaniline and carbonic anhydrase could be formed using an emeraldine base. For instance, an aniline can be dissolved in water to form a mixture, and hydrochloric acid and an oxidant can be added to the mixture. A chemical polymerization of the aniline in the mixture can be performed to form polyanilne. | 08-06-2009 |
Sarinkumar Anakkat Koyilothu, Bangalore IN
Patent application number | Description | Published |
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20100253326 | MAGNETIC SURFACE ACOUSTIC WAVE SENSOR APPARATUS AND METHOD - A magnetic sensor that includes a magnetic film deposited on a surface acoustic wave device. The surface acoustic wave device includes an input interdigital transducer and an output interdigital transducer. An RF voltage can be applied at the input interdigital transducer in order to generate acoustic waves, which can travel via the magnetic material to the output interdigital transducer. The application of an external magnetic field alters the conductivity of the magnetic material. Such a change in conductivity attenuates the velocity of the traveling surface acoustic wave and an output frequency due to electro acoustic interaction. The change in the applied magnetic field can be indirectly monitored as a change in output frequency of the SAW device at the output interdigital transducer. | 10-07-2010 |
20120032674 | Current Sensor - This disclosure is directed to current sensing techniques for use within a magnetic current sensor. According to one aspect of the disclosure, a current sensing device includes a magnetic core, and a magnetic field sensor positioned substantially within a cavity formed by an air gap interface of the magnetic core and configured to sense a magnetic field induced by an electrical current that is conducted through a conductor passing through a central opening of the magnetic core. | 02-09-2012 |