Patent application number | Description | Published |
20100077861 | Capacitive Accelerometer - Substantially hemispherical concave first and second surfaces of substantially equal radius and surface area face each other about a proof mass supported for movement between the surfaces. The surfaces and proof mass have electrically conductive portions allowing assessment of differential capacitance for measurement of acceleration. Electrically conductive portions are connected to a conditioning circuit in an embodiment. | 04-01-2010 |
20100079017 | ACCELEROMETER INCLUDING DIAPHRAGM AND POWER GENERATOR AND MOTOR INCLUDING SAME - An accelerometer includes a pressure transducer; and a vibration-to-pressure converter (VPC). The VPC may include a housing mechanically coupled to an object to be measured, and a diaphragm sealing the housing to form a chamber, the chamber being fluidly coupled to the pressure transducer. A power generator and motor including the accelerometer are also presented. | 04-01-2010 |
20120132001 | SPRING MOUNTING ELEMENT FOR AN ACCELEROMETER - A spring mounting element is provided having an inner ring with an inner radial circumference and an outer radial circumference, and an outer ring having an inner radial circumference and an outer radial circumference. A plurality of supporting elements are attached to and symmetrically disposed around the outer radial circumference of the inner ring, and attached to the inner radial circumference of the outer ring. The plurality of supporting elements allow the inner ring to move in three dimensions. | 05-31-2012 |
20120249281 | INDUCTOR AND EDDY CURRENT SENSOR INCLUDING AN INDUCTOR - An inductor and an eddy current sensor including an inductor are disclosed. The inductor includes a patterned metal layer arranged on an insulating substrate. The inductor is capable of sensing eddy current within a high temperature region. | 10-04-2012 |
20130041622 | SENSOR ASSEMBLY FOR ROTATING DEVICES AND METHODS FOR FABRICATING - A sensor assembly is described herein. The sensor assembly includes a housing that includes an inner surface that defines a cavity within the housing, and a proximity sensor positioned within the cavity. The proximity sensor includes a first connector, a second connector, and a substantially planar sensing coil that extends between the first connector and the second connector. The sensing coil extends outwardly from the first connector such that the second connector is radially outwardly from the first connector. | 02-14-2013 |
20140021936 | HIGH EFFICIENCY ENERGY HARVESTER AND METHODS THEREOF - In one embodiment, a current transducer is provided. The current transducer includes a magnetic core configured to at least partially encircle a magnetic flux generated by a conductor. At least one coil is coupled to the magnetic core and the magnetic core comprises a superm-alloy material. | 01-23-2014 |
20140354302 | System and Method for a Capacitive Voltage Sensor System - A system including a non-intrusive capacitive voltage sensor configured to couple to an insulator surrounding a metal conductor, wherein the non-intrusive capacitive voltage sensor is configured to produce a voltage signal indicative of a voltage in the metal conductor, and a monitor-controller system configured to receive the voltage signal from the non-intrusive capacitive voltage sensor, wherein the monitor-controller system is configured to use the voltage signal to monitor or control a machine. | 12-04-2014 |
20150123671 | SYSTEMS AND METHODS FOR MONITORING LEAKAGE CURRENT OF AN INDUSTRIAL MACHINE - A system includes a plurality of sensors configured to detect an electrical voltage and an electrical leakage current associated with an operation of an industrial machine, and a controller including a processor and a selection device. The selection device is configured to receive from the plurality of sensors a first input corresponding to the electrical voltage, and a second input corresponding to the electrical leakage current. The first input is paired with the second input to generate a paired input. The selection device is configured to transmit an output to the processor based at least in part on the paired input. The output includes an indication of the electrical leakage current or a dissipation factor associated with the industrial machine. | 05-07-2015 |
20150123676 | TEMPERATURE COMPENSATION OF INSULATION MONITORING FOR ROTATING MACHINES - A system includes a monitoring and/or protection system that includes an insulation derivation circuit. The insulation derivation circuit is configured to derive a first temperature compensation curve based on a first temperature and a first current, and the monitoring and/or protection system is configured to communicatively couple to a first current sensor configured to sense the first current traversing a first phase of a stator winding of a motor, a generator, or a combination thereof. The insulation derivation circuit is also configured to communicatively couple to a first temperature sensor configured to sense the first temperature of the stator when the stator is energized, and the temperature compensation curve is configured to map a temperature to a leakage dissipation factor. | 05-07-2015 |