Class / Patent application number | Description | Number of patent applications / Date published |
324262000 | Magnetic test structure elements | 7 |
20080246473 | Frequency Doubler Device - A frequency doubler circuit includes first and second arrangements of switches connected to the positive and negative inputs of a comparator, respectively, and arranged in such a way that first and third voltages during the first phase of a reference clock signal and second and fourth voltages during a second phase opposite to the first phase are applied to the positive and negative inputs, where the first and second voltages and the third and fourth voltages are shifted with respect to each other at a half-period of the reference clock signal and the ratio between slopes of the voltages is fixed with respect to a selected current. | 10-09-2008 |
20080272772 | METHODS AND APPARATUS FOR INSPECTING MATERIALS - Apparatus and methods for inspecting materials such as cylindrical and tubular members are disclosed. One apparatus includes a frame that supports a magnetic coil and a detector assembly, the detector assembly having one or more magnetic detectors adapted to be spaced a first distance from the material being inspected by one or more substantially frictionless members. | 11-06-2008 |
20080315872 | Method and device for long-range torsional guided-wave inspection of piping with a partial excitation and detection around the pipe circumference - Sensor assemblies and methods are described that facilitate the use of a long-range torsional guided-wave inspection system for inspecting pipes, tubes, or other longitudinal cylindrical structures, with a partial excitation and detection around the pipe circumference. The sensor assemblies comprise a plate-type magnetostrictive sensor probe positioned beneath a compressible/expandable bladder and an inverted U-shaped frame that retain and position the sensor probe against the external wall of the pipe under inspection. Preferably, a magnetostrictive strip is positioned in direct contact with the pipe wall over which the plate magnetostrictive sensor probe is positioned. The probe is preferably curved to match the curvature of the external surface of the pipe. A pad may be positioned between the probe and the magnetostrictive strip to improve compliance with irregular pipe surfaces. The frame (and therefore the sensor assembly) is held in place by a belt that encircles the pipe and may be tensioned in order to pull the frame against the pipe, and through the compressive force associated with the bladder, direct the magnetostrictive sensor probe against the surface of the pipe or against the magnetostrictive strip positioned on the surface of the pipe. Methods are described for placement of the magnetostrictive strip and the positioning of the magnetostrictive sensor probe. | 12-25-2008 |
20100045287 | SENSOR - The invention relates to a sensor arrangement ( | 02-25-2010 |
20120256623 | NON-CONTACT MAGNETIC PARTICLE INSPECTION APPARATUS - A non-contact magnetic particle inspection apparatus includes a test article support and manipulation system having a first rail that extends along a first axis, a second rail that extends along the first axis, and a third rail that extends a second axis. The third rail includes a first end that extends to a second end through an intermediate portion. The first end is mounted to the first rail and the second end is mounted to the second rail. A mounting fixture is mounted to the third rail. The mounting fixture includes a test article mounting system and a test article orientation system. The test article orientation system is configured and disposed to selectively manipulate a test article within a magnetic field. | 10-11-2012 |
20130187646 | ELECTRONIC MODULE ASSEMBLY FOR INFLATABLE PERSONAL RESTRAINT SYSTEMS AND ASSOCIATED METHODS - Electronics module assemblies (“EMAs”) for inflatable personal restraints and associated systems are described herein. An EMA configured in accordance with an embodiment of the present technology can include, for example, a housing having a body portion, cover portion that attaches to the body portion to form an enclosure, and protrusion extending outwardly from the cover portion. The protrusion can have an outer boundary at which the protrusion projects away from the cover portion. The EMA can further include a crash sensor within the enclosure in an area defined by the outer boundary of the protrusion. The protrusion can form an envelope of space around the crash sensor that defines a minimum distance an external object with a magnetic field can come to the crash sensor without activating it. The EMA can optionally include a magnetic field configured to disable the crash sensor upon the detection of an external magnetic field. | 07-25-2013 |
20140197829 | MOBILE CARRIER SYSTEM FOR AT LEAST ONE SENSOR ELEMENT DESIGNED FOR NON-DESTRUCTIVE TESTING - The invention relates to a mobile carrier system for at least one sensor element for testing test objects having convex surfaces. The system is provided for testing test objects that are at least made of ferromagnetic material. For this purpose, two first rollers are attached to a frame, the rotational axes of which are oriented parallel to each other and at a distance from each other. The distance of the two first rollers can be varied, and one of the two first rollers is attached to a carriage, which can be moved perpendicularly to the rotational axes of the two first. rollers. A drive for raising and lowering the first rollers is present on the two first rollers. Two pairs of second rollers are attached to the frame between the two first rollers. At least one pair of the second rollers comprises a rotary drive. | 07-17-2014 |