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 make it possible to detect the defect in the vicinity of a surface layer part of a body to be checked highly efficiently, by the constitution wherein one vibrator is made to be a wave transmitting vibrator to which a refraction angle setting body is attached, and a vibrator group other than the above-mentioned vibrator is used as a wave receiving vibrator group. CONSTITUTION:An ultrasonic wave beam is transmitted from a wave transmitting vibrator 6 with a wedge shoe 5 to a body to be checked 2 at a refraction angle theta. The number of excitations and combination of wave receiving vibrators 71-7n are determined by electronic scanning, so that the ultrasonic wave beams, which are received in correspondence with the depths of flaw, are converged in correspondence with the depth of the flaw and the direction of the flaw. The received signals are delayed and added based on the received ultrasonic wave beams, and the flaw is detected. In this method, the attenuation of the reflected wave or diffracted wave of the ultrasonic wave beam can be corrected in the deep region from the surface of the body to be checked 2. The defect can be detected highly sensitively. The shape and the size of the defect can be estimated highly accurately.

Probe and ultrasonic wave flaw detecting method

PROBLEM TO BE SOLVED: To provide an ultrasonic test equipment with which the detection result can be obtained with high accuracy even if the surface of an object to be inspected is formed to have complicated shape.SOLUTION: An ultrasonic test equipment has an ultrasonic wave probe 1 for making ultrasonic wave enter an object 2 to be inspected by driving a plurality of ultrasonic wave elements and receiving the reflective ultrasonic wave from the object 2 to be inspected and analysis means 7 for analyzing reception signals receiving the reflective ultrasonic wave by the ultrasonic wave probe 1 and calculates the result of test. The analysis means 7 calculates the result of test by using a transmission route of ultrasonic wave determined based on the surface information of the object 2 to be inspected in which the ultrasonic wave is incident.

Ultrasonic test equipment and ultrasonic flaw detection method

Key issues of resist process design for 32nm node logic device were discussed in this paper. One of them is reflectivity
control in higher 1.3NA regime. The spec for the reflectivity control is more and more severe as technology node
advances. The target of reflectivity control over existent substrate thickness variation is 0.4%, which was estimated from
our dose budget analysis. Then, single BARC process or stacked mask process (SMAP) was selected to each of the
critical layers according to the substrate transparency. Another key issue in terms of material process was described in
this paper, that is spin-on-carbon (SOC) pattern deformation during substrate etch process. New SOC material without
any deformation during etch process was successfully developed for 32nm node stacked mask process (SMAP). 1.3NA
immersion lithography and pattern transfer performance using single BARC

Immersion resist process for 32-nm node logic devices

PURPOSE:To prevent fluctuation of impedance of an exciting coil to be built in a probe for detecting variation of eddy current being induced in an object to be inspected by applying magnetic field CONSTITUTION:The electromagnetic flaw detecting equipment comprises a probe 1 for detecting the variation of eddy current being induced in an object 5 to be inspected by applying magnetic field thereto, a section 3 for detecting a flaw on the object 5 based on an output from the probe 1, and a section 4 for displaying/recording a signal received from the detecting section 3, wherein the probe 1 comprises an exciting coil for applying a vertical field to the object 5 to induce eddy current, and a magnetic sensor for detecting a secondary field induced by the eddy current

Electromagnetic flaw detecting equipment

PROBLEM TO BE SOLVED: To provide an ultrasonic flaw detection device and method capable of reducing an online inspection time and detecting a defect with high accuracy.SOLUTION: An ultrasonic flaw detection device comprises: a potential difference applying unit 12 that applies a potential difference having any waveform to a probe 11; a drive element switching unit 22 that selectively switches to a piezoelectric element 21 for applying the potential difference; an AD converting unit 23 that acquires waveform data from a signal obtained from each piezoelectric element 21; a surface shape acquiring unit 27 that acquires surface shape data of an inspection object 2; a delay time calculating unit 29 that calculates a delay time of ultrasonic transmission and reception for obtaining a desired refraction angle, when assuming that ultrasonic waves are transmitted to a surface of the inspection object 2 obtained from the shape data by drive elements, as a piezoelectric element group used for flaw detection, determined by considering a surface shape of the inspection object; and a signal synthesizing unit 30 that extracts waveform data of the drive elements from the waveform data of the piezoelectric elements 21, and shifts the waveform data extracted according to the delay time on a time axis to synthesize the shifted waveform data to obtain synthesized waveform data as a flaw detection result.

Satoshi Nagai

Papers

Probe and ultrasonic wave flaw detecting method

Ultrasonic test equipment and ultrasonic flaw detection method

Immersion resist process for 32-nm node logic devices

Electromagnetic flaw detecting equipment

Ultrasonic flaw detection device and method