The Experts below are selected from a list of 285 Experts worldwide ranked by ideXlab platform

Youichi Ito - One of the best experts on this subject based on the ideXlab platform.

  • Non-contact detection of foreign material inside soft material by using high-intensity aerial ultrasonic waves and Optical Equipment
    2017
    Co-Authors: Li Jin, Ayumu Osumi, Youichi Ito
    Abstract:

    Hardness is a very important factor to investigate the characteristics of an object surface. Recently, a non-contact hardness method has been developed by air flow, laser, and aerial ultrasonic waves. We have developed a non-contact method to detect foreign material inside soft material by using high-intensity aerial ultrasonic waves and Optical Equipment. In particular, it measures the elastic change distribution (vibration velocity and displacement, etc.) on the surface of soft material embedded with foreign material under high-intensity aerial ultrasonic wave irradiation. In this report, we describe successful detection of foreign material (rigid silicone) in the soft material (soft silicone) by the proposed method.

  • Non-contact method for detecting crack in shallow layer of solid materials by using very high-intensity aerial ultrasonic wave and Optical Equipment
    Journal of the Acoustical Society of America, 2016
    Co-Authors: Ayumu Osumi, Masashi Ogita, Youichi Ito
    Abstract:

    We have studied a noncontact and nondestructive method of imaging by using a high-intensity aerial ultrasonic waves and an Optical Equipment. This non-contact method detects a defect in solid materials by measuring a vibration velocity distribution on an object surface continuously irradiated by the aerial ultrasonic waves. In previous study, it was confirmed to image a relatively large peeling and defect in size by proposed method. Meanwhile, one of nondestructive testing target is a crack. It is difficult to vibrate the crack by this method has a lack of sound pressure of irradiating sound wave because the crack is very smaller than peeling. Therefore, in this study, we developed a new very high-power aerial ultrasonic sound source and attempted to detect the crack. In this report, we investigated to detect a crack in shallow layer of solid materials by this ultrasonic sound source. As a result, it is confirmed to image the crack around the shallow layer of object and the micro crack for extending to fr...

  • Improved method of imaging defect in noncontact and nondestructive technique by high-intensity aerial burst ultrasonic wave and Optical Equipment
    Japanese Journal of Applied Physics, 2015
    Co-Authors: Ayumu Osumi, Tatsunori Saito, Youichi Ito
    Abstract:

    We propose a noncontact and nondestructive method of imaging by using high-intensity aerial ultrasonic waves and Optical Equipment. This method identifies defects in an imaged area by analysis of the velocity distribution of vibration on the surface of an object continuously irradiated by aerial ultrasonic waves. In a previous study, a related method was applied but could not exactly image the defect shape and size because the vibration mode at the target's surface is generated by a continuous wave that depends on the boundary between the defective area and the defect-free area. By avoiding this problem, the proposed method allows exact imaging of the defect shape and size. In this report, we simulate results from the proposed underlying principle and conduct an experiment based on the proposed principle.

Ayumu Osumi - One of the best experts on this subject based on the ideXlab platform.

  • Non-contact detection of foreign material inside soft material by using high-intensity aerial ultrasonic waves and Optical Equipment
    2017
    Co-Authors: Li Jin, Ayumu Osumi, Youichi Ito
    Abstract:

    Hardness is a very important factor to investigate the characteristics of an object surface. Recently, a non-contact hardness method has been developed by air flow, laser, and aerial ultrasonic waves. We have developed a non-contact method to detect foreign material inside soft material by using high-intensity aerial ultrasonic waves and Optical Equipment. In particular, it measures the elastic change distribution (vibration velocity and displacement, etc.) on the surface of soft material embedded with foreign material under high-intensity aerial ultrasonic wave irradiation. In this report, we describe successful detection of foreign material (rigid silicone) in the soft material (soft silicone) by the proposed method.

  • Non-contact method for detecting crack in shallow layer of solid materials by using very high-intensity aerial ultrasonic wave and Optical Equipment
    Journal of the Acoustical Society of America, 2016
    Co-Authors: Ayumu Osumi, Masashi Ogita, Youichi Ito
    Abstract:

    We have studied a noncontact and nondestructive method of imaging by using a high-intensity aerial ultrasonic waves and an Optical Equipment. This non-contact method detects a defect in solid materials by measuring a vibration velocity distribution on an object surface continuously irradiated by the aerial ultrasonic waves. In previous study, it was confirmed to image a relatively large peeling and defect in size by proposed method. Meanwhile, one of nondestructive testing target is a crack. It is difficult to vibrate the crack by this method has a lack of sound pressure of irradiating sound wave because the crack is very smaller than peeling. Therefore, in this study, we developed a new very high-power aerial ultrasonic sound source and attempted to detect the crack. In this report, we investigated to detect a crack in shallow layer of solid materials by this ultrasonic sound source. As a result, it is confirmed to image the crack around the shallow layer of object and the micro crack for extending to fr...

  • Improved method of imaging defect in noncontact and nondestructive technique by high-intensity aerial burst ultrasonic wave and Optical Equipment
    Japanese Journal of Applied Physics, 2015
    Co-Authors: Ayumu Osumi, Tatsunori Saito, Youichi Ito
    Abstract:

    We propose a noncontact and nondestructive method of imaging by using high-intensity aerial ultrasonic waves and Optical Equipment. This method identifies defects in an imaged area by analysis of the velocity distribution of vibration on the surface of an object continuously irradiated by aerial ultrasonic waves. In a previous study, a related method was applied but could not exactly image the defect shape and size because the vibration mode at the target's surface is generated by a continuous wave that depends on the boundary between the defective area and the defect-free area. By avoiding this problem, the proposed method allows exact imaging of the defect shape and size. In this report, we simulate results from the proposed underlying principle and conduct an experiment based on the proposed principle.

  • basic study of an estimation method for fire damage within concrete sample using high intensity ultrasonic waves and Optical Equipment
    Japanese Journal of Applied Physics, 2014
    Co-Authors: Ayumu Osumi, Masakatsu Enomoto
    Abstract:

    After a fire in a concrete building, concrete walls may need to be entirely or partially repaired depending on the size of the fire. If the building is to be repaired, it is necessary to determine the extent and cost of the work. To do so, a method is needed for determining the level of fire damage within concrete walls, particularly along the depth direction. In a previous work, we have investigated a noncontact, nondestructive method using high-intensity aerial ultrasonic waves and Optical Equipment to detect the level of fire damage on the concrete surface, and we have demonstrated the feasibility of obtaining such information. Yet it is also important to determine the level of fire damage within concrete sample, particularly along the depth direction, in order to determine the extent of necessary repairs. In this study, we examined a new noncontact, minimally destructive method for estimating the level of fire damage within concrete sample. The results show that the level of fire damage could be determined along the depth direction.

A.m. Van Der Giessen - One of the best experts on this subject based on the ideXlab platform.

  • Sectoral Innovation Watch electrical and Optical Equipment Sector. Final sector report
    2011
    Co-Authors: T.a. Van Den Broek, A.m. Van Der Giessen
    Abstract:

    The electrical and Optical Equipment sector is a high-tech manufacturing sector. It is one of the most innovative sectors in Europe with investments and advances in fundamental research, applied R&D and innovation in the actual use of Equipment. This sector is also one of the most global sectors with competition between Europe, US, Japan, China and other regions, and global players having spread their business activities (R&D, marketing, production, assembling, etc.) across different parts of the world. The sector encompasses stastically four segments:  Computers and office Equipment  Electrical machinery and Equipment  Radio, TV & communication Equipment (electronics), which includes i.e. the semi-conductor industry  Instrument engineering (Optical Equipment), which includes medical Equipment and photonics. Electrical and Optical Equipment is used by consumers but more so by a range of private and public sectors such as automobile, retail, aeronautics and space, health, education and government. Electrical and Optical Equipment is perceived a general purpose technology or Key Enabling Technology: the development, provisioning and use of ICT are crucial for the competitiveness of firms, sectors and regions, and for addressing societal challenges such as scarcity of energy and water, ageing and security.

  • Sectoral Innovation Performance in the Electrical and Optical Equipment Sector
    2010
    Co-Authors: T.a. Van Den Broek, A.m. Van Der Giessen
    Abstract:

    The Electrical and Optical Equipment sector is a high-tech manufacturing sector. It is one of the most innovative sectors in Europe with investments and advances in fundamental research, applied R&D and innovation in the actual use of Equipment. This sector is also one of the most global sectors with competition between Europe, US, Japan, China and other regions, and global players having spread their business activities (R&D, marketing, production, assembling, etc.) across different parts of the world. The sector consists of several subsectors. In this study, the focus is on:  Computer and office Equipment  Electrical machinery and Equipment  Electronics (Radio, TV & communication Equipment), including semiconductors  Optical Equipment (Instrumental engineering). This report builds on the work done by the Electra industrial initiative1. The scope in this report is broader than the sector discussed in the Electra communication of the European Commission (about EUR 410,000 million in 2008), as it includes Computer and Office Equipment and Optical Equipment (about EUR 670,000 million in 2005). Only IT manufacturing related categories were included in the previous Sectoral Innovation Watch.

  • Sectoral Innovation Foresight. Electrical and Optical Equipment Sector. Final report. Task 2
    2010
    Co-Authors: T.a. Van Den Broek, A.m. Van Der Giessen
    Abstract:

    The goal of this study is to highlight possible future developments of importance to the electrical and Optical (E&O) Equipment sector, paying particular importance to ‘radical’ changes and discussing policy options and future scenarios. The electrical & Optical Equipment sector plays a vital role in future societal challenges The E&O Equipment sector includes “manufacturers of a diverse range of goods that can be classified as either being consumer goods (for example, telephones, televisions and watches), capital goods (for example, computers and transmission Equipment) or intermediate goods (for example, electronic components such as conductors and wiring) that are used by other sectors of the economy”. As a (future) net producer of Equipment used widely in society, the E&O Equipment sector will play a vital role in tackling grand societal challenges. Important future challenges relevant to this sector are an ageing population, globalization, urbanization, energy and materials scarcity, climate change, security concerns, a mature network society and increased personalisation and customisation of products and services

T.a. Van Den Broek - One of the best experts on this subject based on the ideXlab platform.

  • Sectoral Innovation Watch electrical and Optical Equipment Sector. Final sector report
    2011
    Co-Authors: T.a. Van Den Broek, A.m. Van Der Giessen
    Abstract:

    The electrical and Optical Equipment sector is a high-tech manufacturing sector. It is one of the most innovative sectors in Europe with investments and advances in fundamental research, applied R&D and innovation in the actual use of Equipment. This sector is also one of the most global sectors with competition between Europe, US, Japan, China and other regions, and global players having spread their business activities (R&D, marketing, production, assembling, etc.) across different parts of the world. The sector encompasses stastically four segments:  Computers and office Equipment  Electrical machinery and Equipment  Radio, TV & communication Equipment (electronics), which includes i.e. the semi-conductor industry  Instrument engineering (Optical Equipment), which includes medical Equipment and photonics. Electrical and Optical Equipment is used by consumers but more so by a range of private and public sectors such as automobile, retail, aeronautics and space, health, education and government. Electrical and Optical Equipment is perceived a general purpose technology or Key Enabling Technology: the development, provisioning and use of ICT are crucial for the competitiveness of firms, sectors and regions, and for addressing societal challenges such as scarcity of energy and water, ageing and security.

  • Sectoral Innovation Performance in the Electrical and Optical Equipment Sector
    2010
    Co-Authors: T.a. Van Den Broek, A.m. Van Der Giessen
    Abstract:

    The Electrical and Optical Equipment sector is a high-tech manufacturing sector. It is one of the most innovative sectors in Europe with investments and advances in fundamental research, applied R&D and innovation in the actual use of Equipment. This sector is also one of the most global sectors with competition between Europe, US, Japan, China and other regions, and global players having spread their business activities (R&D, marketing, production, assembling, etc.) across different parts of the world. The sector consists of several subsectors. In this study, the focus is on:  Computer and office Equipment  Electrical machinery and Equipment  Electronics (Radio, TV & communication Equipment), including semiconductors  Optical Equipment (Instrumental engineering). This report builds on the work done by the Electra industrial initiative1. The scope in this report is broader than the sector discussed in the Electra communication of the European Commission (about EUR 410,000 million in 2008), as it includes Computer and Office Equipment and Optical Equipment (about EUR 670,000 million in 2005). Only IT manufacturing related categories were included in the previous Sectoral Innovation Watch.

  • Sectoral Innovation Foresight. Electrical and Optical Equipment Sector. Final report. Task 2
    2010
    Co-Authors: T.a. Van Den Broek, A.m. Van Der Giessen
    Abstract:

    The goal of this study is to highlight possible future developments of importance to the electrical and Optical (E&O) Equipment sector, paying particular importance to ‘radical’ changes and discussing policy options and future scenarios. The electrical & Optical Equipment sector plays a vital role in future societal challenges The E&O Equipment sector includes “manufacturers of a diverse range of goods that can be classified as either being consumer goods (for example, telephones, televisions and watches), capital goods (for example, computers and transmission Equipment) or intermediate goods (for example, electronic components such as conductors and wiring) that are used by other sectors of the economy”. As a (future) net producer of Equipment used widely in society, the E&O Equipment sector will play a vital role in tackling grand societal challenges. Important future challenges relevant to this sector are an ageing population, globalization, urbanization, energy and materials scarcity, climate change, security concerns, a mature network society and increased personalisation and customisation of products and services

Song Tian - One of the best experts on this subject based on the ideXlab platform.