A medical ultrasonic diagnostic imaging system is provided which is capable of being accessed over data communication networks such as the Internet, making the ultrasonic images, diagnostic reports, and ultrasound system diagnostics information and operation accessible to a conventional personal computer using commercially available software at virtually any remote location. In one embodiment, the ultrasound system can be remotely operated from the personal computer. The inventive apparatus and techniques make it possible for physicians to remotely access, control, and perform diagnoses using their ultrasound systems over a network such as the World Wide Web with no special hardware requirements.

Ultrasonic diagnostic imaging system with universal access to diagnostic information and images

A monitoring system for a heating, ventilation, and air conditioning (HVAC) system of a building includes a monitoring device installed at the building, a monitoring server located remotely from the building, and a review server. The monitoring device measures an aggregate current supplied to components of the HVAC system and transmits current data based on the measured aggregate current. The monitoring server receives the transmitted current data and, based on the received current data, assesses whether failures have occurred in first and second components of the HVAC components. The monitoring server generates a first advisory in response to determining that the failure has occurred in the first component. The review server provides the first advisory to a technician for review and, in response to the technician verifying that the failure has occurred, transmits a first alert.

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Hvac system remote monitoring and diagnosis

https://pscfiles.tamu.edu/symposia/2005/050%20Arunraj.pdf

Risk-based maintenance—Techniques and applications

A monitoring system for a heating, ventilation, and air conditioning (HVAC) system of a residence includes a monitoring device installed at the residence and a server located remotely from the residence. The monitoring device measures an aggregate current supplied to a plurality of components of the HVAC system and transmits current data based on the measured aggregate current. The server receives the transmitted current data and, based on the received current, assesses whether a failure has occurred in a first component of the plurality of components of the HVAC system and assesses whether a failure has occurred in a second component of the plurality of components of the HVAC system.

Residential solutions hvac monitoring and diagnosis

Ultrasonic arrays allow a given scatterer to be illuminated from a wide range of angles and hence are capable of extracting significant information about the scatterer. In this paper a general imaging methodology, termed multi-mode total focusing method, is proposed in which any combination of modes and reflections can be used to produce an image of the test structure. Like the total focusing method, this approach is implemented by post-processing the full matrix of array data to achieve a synthetic focus at every pixel in the image. A hybrid model is used to predict the array data and demonstrate the performance of the multi-mode imaging concept. This hybrid model combines far field scattering coefficient matrices with a ray-based wave propagation model. This allows the inclusion of longitudinal waves, shear waves and wave mode conversions. It is shown that, with prior knowledge of likely scatterer location and orientation, the mode combination and array location can be optimised to maximise the performance of array inspections. A practically relevant weld inspection application is then described and its optimisation is discussed.

Defect detection using ultrasonic arrays: The multi-mode total focusing method

PROBLEM TO BE SOLVED: To provide an ultrasonic shape measurement apparatus excellent in sensibility and resolution (opening amount) capable of suppressing generation of grating lobe and a method.SOLUTION: In the ultrasonic shape measurement apparatus which measures the shape of a measurement object by an ultrasonic transmission/reception sensor 3 in which multiple ultrasonic transmission elements 1 for transmitting ultrasonic waves and multiple ultrasonic reception elements 2 for receiving ultrasonic waves, or multiple ultrasonic transmission/reception for transmitting/receiving ultrasonic waves are arranged in a two or three dimensional array form, the ultrasonic transmission elements 1 and the ultrasonic reception elements 2, or the ultrasonic transmission/reception elements are ununiformly arranged not to be aligned in a lattice form.

Ultrasonic shape measurement apparatus and measurement method

PROBLEM TO BE SOLVED: To enable highly precise defect inspection of an object under inspection using a laser ultrasonic method without going through separate processes of surface polishing and surface condition measurement of the object under inspection.SOLUTION: A laser ultrasonic inspection device 10 comprises; a transmission laser beam generator 11 which irradiates an object under inspection 1 with a transmission laser beam A to induce an ultrasonic wave; a reception laser beam generator 13 which irradiates the object under inspection with a reception laser beam B to receive the ultrasonic wave propagating through the object under inspection; a reception interferometer 15 which measures the ultrasonic wave from change in phase of a reflection C of the reception laser beam B and outputs an ultrasonic signal; and an imaging unit 16 which detects defects on the object under inspection by forming an image from the ultrasonic signal at multiple points. The laser ultrasonic inspection device 10 includes a reflection light intensity measurement unit 17, which is noise removal means for identifying a reflection light signal whose peak intensity value is improper due to influence of surface condition of the object under inspection as noise, and detects defects by means of the imaging unit 16 using the reflection light signal with proper peak intensity values while removing noise using the reflection light intensity measurement unit 17.

Laser ultrasonic inspection device and inspection method

An exposure method has irradiating a mask with light based on an exposure performing condition, a first mask pattern and a second mask pattern being formed in the mask, and projecting images of the first mask pattern and second mask pattern onto a wafer through a projection lens, a lower-layer film material and a photoresist being sequentially laminated on the wafer, wherein the exposure performing condition is a condition on which, when exposure is performed on a predetermined exposure condition, the predetermined exposure condition is adjusted such that a difference between a wafer position at which a best focus is obtained for the image of the first mask pattern and a wafer position at which a best focus is obtained for the image of the second mask pattern falls within a predetermined range, the wafer position of the first mask pattern and the wafer position of the second mask pattern being predicted using film thicknesses and optical characteristics of the photoresist and the lower-layer film material.

Exposure method, mask data producing method, and semiconductor device manufacturing method

PROBLEM TO BE SOLVED: To achieve welding inspection with stable sensitivity even when an inspected portion is narrow and an inspected object is in a high temperature state of immediately after or during welding.SOLUTION: A welding inspection method includes following steps. First, in an incident laser beam irradiation step, an incident laser beam Ii is generated, and is transmitted and irradiated on an inspected object 4 during or after welding. Then, in a detection laser beam irradiation step, a detection laser beam Id is generated, and is transmitted and irradiated on the inspected object 4. In a condensation step, a reflected/scattered laser beam Ir, which is reflected and scattered on the surface of the inspected object 4, is condensed. Finally, in an interference measurement step, the reflected/scattered laser beam Ir condensed in the condensation step is subjected to an interference measurement and an ultrasonic signal is generated. At least one of the incident laser beam Ii generated in the incident laser beam irradiation step and the detection laser beam Id generated in the detection laser beam irradiation step is irradiated on a welded metal or on a side surface of a welding groove.

Method and device for welding inspection

PROBLEM TO BE SOLVED: To provide a method and an apparatus for measuring the current direction and current velocity of ground water in high-pressure high-temperature environment or the current velocity distribution of fluid in a high-temperature piping of power plant or chemical plant stably with high accuracy. SOLUTION: Micro solid-state tracers 14, having a specific gravity substantially equal to that of high-pressure high-temperature fluid 3 flowing into a fixed region are fed into the fluid. Time variant fluid position of the tracer is measured continuously or intermittently by an ultrasonic sensor 16 or an optical image pickup means 26 disposed in that region or in the vicinity thereof, and then the current direction and current velocity of the fluid are measured, based on the measurements.

Satoshi Nagai

Papers

Ultrasonic shape measurement apparatus and measurement method

Laser ultrasonic inspection device and inspection method

Exposure method, mask data producing method, and semiconductor device manufacturing method

Method and device for welding inspection

Method and equipment for measuring current flow direction and current speed of high-pressure high- temperature fluid