Patent application number | Description | Published |
20090033314 | MICRO-ELECTROMECHANICAL SYSTEM (MEMS) BASED CURRENT AND MAGNETIC FIELD SENSOR - A micro-electromechanical system (MEMS) current and magnetic field sensor for sensing a magnetic field produced by a conductor includes a magneto-MEMS component for sensing the magnetic field and an interference-MEMS component for sensing an interference, wherein the magneto-MEMS component and the interference MEMS component are used to provide an indication of the current in the conductor. | 02-05-2009 |
20100182608 | IRREGULARLY SHAPED ACTUATOR FINGERS FOR A MICRO-ELECTROMECHANICAL SYSTEM FABRY-PEROT FILTER - According to one embodiment, a micro-electrical mechanical system apparatus includes (i) a comb drive actuator having at least one irregularly shaped finger and (ii) a movable Fabry-Perot filter cavity mirror coupled to the comb drive actuator. According to some embodiments, a relationship between a voltage applied to the comb drive actuator and an amount of displacement associated with the movable mirror is substantially linear. | 07-22-2010 |
20100220331 | Micro-electromechanical system fabry-perot filter cavity - According to some embodiments, a micro-electrical mechanical system apparatus includes an actuator within a plane and at least one movable mirror oriented substantially normal to the plane. The actuator may move the movable mirror with respect to a fixed mirror oriented substantially normal to the plane and substantially parallel to the movable mirror. The space between the fixed and movable mirrors might comprise, for example, a Fabry-Perot filter cavity for a spectrometer. | 09-02-2010 |
20110024331 | HIGH THROUGHPUT MAGNETIC ISOLATION TECHNIQUE AND DEVICE FOR BIOLOGICAL MATERIALS - The present application discloses a process for the high throughput separation of at least one distinct biological material from a sample using magnetic tags and a magnetic separation set up capable of processing at least about 10 | 02-03-2011 |
20110166800 | FLOW SENSOR ASSEMBLIES - A flow sensor assembly is provided and includes a flow conduit configured to impart a disturbance to a flow, multiple sensors disposed at respective sensing locations along the flow conduit. Each sensor is responsive to the disturbance of the flow and generates a corresponding response signal. The flow sensor assembly further includes a processor operably connected to each sensor, the processor being configured to compute a cross-correlation function between the response signals generated by said sensors, and determine a flow rate and a direction for the flow through the conduit based on the computed cross-correlation function. Additional flow sensor assembly arrangements are also disclosed. | 07-07-2011 |
20110230745 | Motion Artifact Rejection Microelectrode - An electrode system for the measurement of biopotential signals includes a substrate. A microelectrode is coupled to the substrate. An accelerometer is coupled to the substrate. A biopotential amplifier is electrically coupled to the microelectrode and acceleration measurement circuit is electrically coupled to the accelerometer. A method of measuring a biopotential from a patient includes sensing a biopotential with a microelectrode. The biopotential is amplified with an amplifier in electrical communication with the microelectrode. A movement of the electrode is sensed with an accelerometer integrated with the electrode substrate. The sensed biopotential and the sensed movement are provided to an electronic controller. Portions of the sensed biopotential that correspond to sensed movement are identified as artifact contaminated portions. | 09-22-2011 |
20140123782 | SENSOR ASSEMBLIES AND METHODS OF ASSEMBLING SAME - A method for assembling a sensor assembly includes providing a sensing device configured to measure at least one variable. The method also includes at least partially enclosing a magnetic material within an enclosure. At least a portion of the enclosure is manufactured from a material having a permeability that facilitates forming a magnetic field therein. The method also includes coupling the sensing device to a first portion of the enclosure. The enclosure includes at least one second portion that is movable with respect to the first portion of the enclosure such that a magnetic coupling force is induced external to the enclosure to facilitate coupling the sensor assembly to a magnetic surface. | 05-08-2014 |
20140180610 | MEMS Based Membrane Sensor System and Method of Use - A MEMS sensor system for monitoring membrane elements in a membrane based water filtration plant having a remote telemetry unit (RTU), a SCADA, and a plurality of MEMS sensors for measuring pressure, flow rate. and conductivity. The water filtration plant has a train with a membrane vessel containing a plurality of membrane elements arranged in series creating interfaces between each membrane element. The MEMS sensors are located at the membrane element interfaces. A method of monitoring membrane elements in a membrane based water filtration plant using a plurality of MEMS sensors for measuring pressure, flow rate. and conductivity placed at the filtration plant membrane element interfaces. | 06-26-2014 |