Pulse Stretching Technique for Laser Bond Inspection, Laser Ultrasonic Inspection, and Laser Peening

    公开(公告)号:US20200052454A1

    公开(公告)日:2020-02-13

    申请号:US16102551

    申请日:2018-08-13

    Inventor: Morteza Safai

    Abstract: An example laser system includes a laser, a plurality of pulse stretchers coupled together in series, a feedback module, and a lens assembly. The plurality of pulse stretchers is configured to stretch pulse widths of laser pulses provided by the laser and to output stretched laser pulses. The feedback module includes a pulse delay comparator that is configured to compare a first laser pulse of the laser pulses to a corresponding first stretched laser pulse of the stretched laser pulses. The feedback module also includes a computing device that is configured to determine, based on a result of the comparing by the pulse delay comparator, an adjustment to a pulse stretcher of the plurality of pulse stretchers, and apply the adjustment to the pulse stretcher so as to modify a shape of a second stretched laser pulse of the stretched laser pulses.

    Anisotropic piezoelectric device, system, and method

    公开(公告)号:US10454019B2

    公开(公告)日:2019-10-22

    申请号:US15280096

    申请日:2016-09-29

    Abstract: A micro electromechanical (mem) device includes a first electrode, a second electrode, and a shaped carbon nanotube with a first end and a second end. The first end of the shaped carbon nanotube is conductively connected to the first electrode and the second end is conductively connected to the second electrode. A system for making the device includes a plurality of electrodes placed outside the growth region of a furnace to produce a controlled, time-varying electric field. A controller for the system is connected to a power supply to deliver controlled voltages to the electrodes to produce the electric field. A mixture of gases is passed through the furnace with the temperature raised to cause chemical vapor deposition (CVD) of carbon on a catalyst. The sequentially time-varying electric field parameterizes a growing nanotube into a predetermined shape.

    Backscatter X-Ray Inspection System for Pipes

    公开(公告)号:US20190302037A1

    公开(公告)日:2019-10-03

    申请号:US15940622

    申请日:2018-03-29

    Abstract: A method and a system for scanning an elongate structure. A scan of the elongate structure with a fluid in a cavity of the elongate structure is received. The scan is generated by a scanner using an x-ray beam. Data in the scan is filtered to remove a portion of the data in the scan attributable to the fluid to form filtered data, enabling detecting an inconsistency on a wall of the elongate structure in the filtered data.

    X-ray scatter systems and methods for detecting structural variations

    公开(公告)号:US10317349B2

    公开(公告)日:2019-06-11

    申请号:US14953689

    申请日:2015-11-30

    Abstract: Embodiments of the present disclosure provide systems and methods for detecting one or more thermal and/or mechanical properties of a structure. The method may include forming one or more test structures from a material that forms the structure, generating and storing calibration data determined from the one or more test structures, emitting X-ray radiation into the structure, detecting X-ray scatter from the structure, and determining the one or more properties of the structure based on the detected X-ray scatter and the calibration data.

    Three-dimensional gap measurement systems and methods

    公开(公告)号:US10240909B2

    公开(公告)日:2019-03-26

    申请号:US15295628

    申请日:2016-10-17

    Abstract: An electronic feeler gauge comprises a sensor blade, a transmitting system, and a receiving system. The sensor blade comprises transmission induction coils, reception induction coils, and measurement sites, spaced in two dimensions about the sensor blade. Each of the measurement sites is associated with at least one of the transmission induction coils and at least one of the reception induction coils. The transmitting system is configured to drive direct electrical current across the transmission induction coils to produce transmitted probe signals from the transmission induction coils. The receiving system is configured to receive response signals from the reception induction coils due to the transmitted probe signals.

    Portable device for quantifying thermochromatic coating signatures

    公开(公告)号:US10184840B2

    公开(公告)日:2019-01-22

    申请号:US14591348

    申请日:2015-01-07

    Abstract: A portable device for quantification of thermochromatic coating signatures is provided. The portable device includes a directing component configured to direct light to a target having a thermochromatic coating. Additionally, the portable device includes a conditioning component configured to condition reflected light from the target, the reflected light including thermochromatic coating signatures. The portable device also includes an image detector configured to generate images from the conditioned reflected light, and a processor configured to receive and analyze images from the image detector and identify at least one portion of the target that has exceeded a predefined temperature or predefined temperature variance based on the analyzed images.

    Solid-state motor and associated systems and methods

    公开(公告)号:US09995288B2

    公开(公告)日:2018-06-12

    申请号:US15009223

    申请日:2016-01-28

    CPC classification number: F03G7/065 B64C13/30 F16G1/20 G05D23/27535

    Abstract: Described herein is a motor comprising a first rotatable member and an anchor, spaced apart from the first rotatable member. The motor also comprises a belt, in tension about the first rotatable member and the anchor. The belt is co-rotatably engaged with the first rotatable member. Further, the belt is made from a shape-memory alloy. Additionally, the motor comprises a thermal regulation device, positioned between spaced-apart first and second portions of the belt. The thermal regulation device is also configured to concurrently cool the first portion of the belt to contract the first portion of the belt and heat the second portion of the belt to expand the second portion of the belt. Concurrent contraction and expansion of the first and second portions of the belt cause rotation of the belt.

Patent Agency Ranking