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

PURPOSE:To output the state of defect distribution in the entire body to be inspected readily and highly accurately, by scanning the specified part of the surface of the body to be inspected with an ultrasonic wave beam, collecting and recording flaw data, and outputting the result of operation. CONSTITUTION:An array type probe 1 is brought into contact with the surface of a body to be inspected. Ultrasonic flaw detection is performed with an electronic scanning means 11. The data of the amplitude and the propagating time of an ultrasonic echo for every electronic scanning position are detected with an ultrasonic wave signal collecting and recording means 13. Based on these data, the positional relationship between the position of the probe 1 and the position of the specified shape part of the body to be inspected is operated in an operating means 14. The electronic scanning position of a monitor line and a beam path for monitoring the contact state between the probe 1 and the body to be inspected are determined. Based on the determined monitor line and a flaw detecting line, the direction of the ultrasonic wave beam and the focusing position are set again, and the flaw detection is performed. The echo data at that part are collected and recorded as the flaw detection data. The means 14 performs operation in order to determine whether the data agree with defect judging conditions or not. When the data agree with the conditions, the data are outputted to the outside though an output means 15.

Ultrasonic wave flaw detector

Overlay control methods, semiconductor manufacturing method and a semiconductor manufacturing apparatus are provided for restraining overlay error between lithography processes, of a semiconductor manufacturing process, within a tolerance of a semiconductor device. According to one or more aspects, enhanced overlay control mechanisms are provided to enable previous layers to perform corrections to an extent that does not exceed a correction ability of a next layer. For instance, the next layer can inform the previous layer of a tolerated range that is correctable so that the previous layer can perform corrections without exceeding the tolerate range. Accordingly, a feedback loop is established that extends across two exposure events and is not closed within a single exposure event as with conventional systems.

Overlay control method and a semiconductor manufacturing method and apparatus employing the same

Improved ultrasonic testing by phased array technique and its application

An ultrasonic flaw detector including an ultrasonic probe for emitting an ultrasonic wave on an object to be inspected and receiving a reflected ultrasonic wave from the object, a drive element control unit for controlling a plurality of ultrasonic elements to emit an ultrasonic wave from the ultrasonic probe and to control a reflected ultrasonic wave from the object, and a calculation unit for obtaining, by using a refraction angle of the ultrasonic wave at a time of the ultrasonic wave entering the object, an incident position of the ultrasonic wave on a surface of the object, and a surface shape of a surface of the object at the incident position, the incident angle of the ultrasonic wave entering the incident position, and obtaining a plurality of ultrasonic elements to be driven, based on the incident position and the incident angle.

Ultrasonic flaw detector and ultrasonic flaw detecting method

PURPOSE:To detect the flaw of a shoulder corner part with high accuracy, by moving an oblique angle transversal wave ultrasonic probe to the different position on the same straight line in such a state that a vertical longitudinal wave ultrasonic prober is fixed CONSTITUTION:A vertical longitudinal wave probe 16 is arranged to the surface 15 of an aluminum wedge 11 as a transmitting probe so as to be positioned directly above a part where the fatigue crack generated at the shoulder corner part 14 of the wedge 11 is detected A transversal wave oblique angle probe is arranged on the surface 15 of the wedge 11 as a receiving probe 17 so that the main beam direction of a receiving wave crosses the corner part 14 at a right angle and intersects the beam from the probe 16 The probes 16, 17 are held by probe holders 22 but the probe 16 is arranged so as to be fixed at a predetermined position and the probe 17 has magnets 23 at both ends thereof so as to be subjected to forward and backward scanning toward the position of the transmitting probe Further, the forward and backward scanning of the probe 17 is performed along a guide 24 but a potentiometer 25 measuring the interval between the probes 17, 16 with the movement of the prove 17 is mounted on the guide 24 By this method, the flaw of the shoulder corner part can be detected with high accuracy

Satoshi Nagai

Papers

Ultrasonic wave flaw detector

Overlay control method and a semiconductor manufacturing method and apparatus employing the same

Improved ultrasonic testing by phased array technique and its application

Ultrasonic flaw detector and ultrasonic flaw detecting method

Ultrasonic flaw detecting apparatus