Abstract

A system for classifying objects detected in shearographic images identifying via a derivative peaks method, process, or algorithm is accomplished with a CNN (CNN). The system utilized training techniques of the CNN to classify objects as threats or non-threats. The system utilizes extracted clips from the shearographic image that contain the presence of an object so that the extracted clip containing the object is/are evaluated by the CNN to classify the object on or below a surface that has been insonified or otherwise stimulated to generate the shearographic image.

IPC Classes  ?

• G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
• G01B 11/16 - Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
• G06N 3/04 - Architecture, e.g. interconnection topology
• G06K 9/62 - Methods or arrangements for recognition using electronic means

Abstract

A flip-flop circuit is disclosed. The flip-flop circuit includes a single-input inverter, a dual -input inverter, a single-input tri-state inverter, a dual -input tri-state inverter, and two single-event transient (SET) filters. The single-input tri-state inverter receives an input signal D. The dual-input tri-state inverter includes a first input, a second input and an output, wherein the first input receives output signals from the dual-input inverter and the second input receives output signals from the dual-input inverter via the first SET filter. The output of the dual-input tri-state inverter sends output signals to a first input of the dual-input inverter and a second input of the dual-input inverter via the second SET filter. The single-input inverter receives inputs from the dual-input inverter to provide an output signal Q for the flip-flop circuit.

IPC Classes  ?

• H03K 19/003 - Modifications for increasing the reliability
• H03K 3/356 - Bistable circuits
• H03K 5/13 - Arrangements having a single output and transforming input signals into pulses delivered at desired time intervals

Abstract

A nondestructive system and method for high resolution thermal imaging in metal casting applications is provided to detect defects and starts with the article under test being subjected to a thermal gradient, followed by infrared images taken thereof. The creation of the thermal gradient results in any defects reacting differently to the thermal gradient application to accentuate the defect in the infrared image. The apparatus for conducting the tests in one embodiment includes a single channel sensor, remote cable, and a laptop controller with real time image processing software. This hardware provides high resolution, real-time viewable infrared (IR) images with a variable focus distance adjustable from six inches to infinity. The apparatus enables crisp, clear imagery of various metal casting defects.

IPC Classes  ?

• G01N 25/72 - Investigating presence of flaws
• G01N 21/88 - Investigating the presence of flaws, defects or contamination
• G01J 5/48 - ThermographyTechniques using wholly visual means

Abstract

An apparatus for three-dimensional thermal imaging in medical applications, said apparatus comprising a power supply, user interface controls, focal plane array (FPA), electronics, and optics. It provides two real-time viewable IR channels for binocular vision with a variable focus distance which can be optimized at any distance from six inches to infinity. The present invention enables 3-D vision in the thermal band for greater awareness of everything within the field of view. Potential medical applications are discussed and presented.

IPC Classes  ?

• A61B 5/00 - Measuring for diagnostic purposes Identification of persons

Abstract

An apparatus for high resolution thermal imaging in medical applications has a single channel EMI shielded sensor, remote cable, and laptop controller with real time image processing software. The apparatus provides high resolution, real-time viewable infrared (IR) images with a variable focus distance adjustable from six inches to infinity. The present invention enables crisp, clear imagery of the thermal band for greater awareness of everything within the field of view. Various medical applications which would benefit from high resolution thermal imagery are presented.

IPC Classes  ?

• A61B 5/00 - Measuring for diagnostic purposes Identification of persons

Abstract

A system for two color image fusion blending co-registered low light level images in the visible region of the electromagnetic spectrum with thermal infrared images maximizes the information content of the scene by detecting in which of the two image types, IR and visible, there is more structural information and increasing the weight of the pixels in the image type having the most structural information. Additionally, situational awareness is increased by categorizing image information as "scene" or "target" and colorizing the target images to highlight target features when raw IR values are above a predetermined threshold. The system utilizes Red, Green and Blue (RGB) planes to convey different information such that for targets the Red plane is used to colorize regions when raw IR exceeds the predetermined threshold. For scene images, the Green plane provides improved situational awareness due to the above weighted blend of the two image types.

IPC Classes  ?

• G06T 5/50 - Image enhancement or restoration using two or more images, e.g. averaging or subtraction
• G06T 3/40 - Scaling of whole images or parts thereof, e.g. expanding or contracting

Abstract

A method for Link 16-based geolocation of hostile jammers comprising the steps of collecting jamming noise l/Q samples at a plurality of locations, determining the relative time delay of reception between two or more of the locations, determining the first derivative of the time delay of reception between the two or more locations, and using the results calculated in the receding step to determine the position of the hostile jammers.

IPC Classes  ?

• G01S 7/36 - Means for anti-jamming

Abstract

An apparatus for deploying stowed control surfaces of a projectile is disclosed. The apparatus for deploying stowed control surfaces of a projectile includes a first and second hot gas generators, a first and second gas chambers, a piston wedge, a piston and a barrel. Initially, the first hot gas generator discharges a surge of hot gas into the first gas chamber. In response to the surge of hot gas being discharged into the first gas generator, the piston wedge displaces at least one of the control surfaces to break an environmental seal covering the projectile. After a predetermined amount of time has lapsed, the second hot gas generator discharges a surge of hot gas into the second gas chamber. The surge of hot gas displaces the piston and barrel for deploying the control surfaces completely.

IPC Classes  ?

• F42B 10/20 - Stabilising arrangements using fins spread or deployed after launch, e.g. after leaving the barrel deployed by combustion gas pressure, or by pneumatic or hydraulic forces

Abstract

An adjustable write pulse generator is disclosed. The adjustable write pulse generator includes a band-gap reference current, a programmable ring oscillator, a frequency divider and a single pulse generator. The band-gap reference current circuit generates a well-compensated current over a predetermined range of temperatures needed to program a chalcogenide memory cell. The programmable ring oscillator generates a first set of continuous write '0' and write '1' pulse signals based on the well-compensated current. The frequency divider then divides the first set of continuous write '0' and write '1' pulse signals into a second set of continuous write '0' and write '1' pulse signals. The single pulse generator subsequently converts the second set of continuous write '0' and write '1' pulse signals into a single write '0' pulse signal or a single write '1' pulse signal when programming the chalcogenide memory cell.

IPC Classes  ?

• G11C 11/00 - Digital stores characterised by the use of particular electric or magnetic storage elementsStorage elements therefor

Abstract

Systems and methods relating to programmable circuits are described. Several embodiments relate to systems and methods for controlling the long-term stability and accuracy of circuits that produce waveforms varying in frequency and amplitude. Such embodiments may include a circuit comprising a common vacuum environment that houses a pair of heater-thermocouples. The circuit may compare signals outputted by each heater-thermocouple and then may produce a resultant value based on the comparison. The resultant value may be used by the circuit to control the long-term stability and accuracy of the circuit. Such control of the long-term stability and accuracy of the circuit may include drift compensation associated with certain components of the circuit.

IPC Classes  ?

• G01K 7/06 - Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat using thermoelectric elements, e.g. thermocouples the object to be measured not forming one of the thermoelectric materials the thermoelectric materials being arranged one within the other with the junction at one end exposed to the object, e.g. sheathed type
• G01K 7/14 - Arrangements for modifying the output characteristic, e.g. linearising

Abstract

A sensor is provided for analyzing an object at a focal point of a lens. The sensor includes a focused radiant energy source directed at the lens. The focused radiant energy source transmits a first beam of energy to the lens, vaporizing a portion of the object at the focal point of the lens. A second beam of energy is emitted from the vaporization of the object. A spectrometer is positioned to receive the second beam of energy emitted from the object. The second beam of energy is at least partially transmitted anti-parallel to the first beam of energy.

IPC Classes  ?

• G01J 3/30 - Measuring the intensity of spectral lines directly on the spectrum itself