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Phys.org - latest science and technology news stories
  • High-sensitivity low-power MEMS accelerometer for detecting extremely weak ground and building vibrations
    Hitachi Ltd. today announced the development of a high-sensitivity low-power MEMS accelerometer that can detect extremely weak ground and building vibrations by combining sophisticated MEMS technology with circuit technology. The sensor achieves a comparable sensitivity to that of sensors for oil & gas exploration (noise level 30ng/√Hz) with less than half the power consumption (20mW). Hitachi intends to apply this sensor to various applications including next generation oil & gas exploration, and infrastructure monitoring, to contribute to the realization of a comfortable, safe and secure society.
  • Hyperspectral imaging technology enables new artificial intelligence applications
    VTT Technical Research Centre of Finland has developed a highly cost-efficient hyperspectral imaging technology, which enables the introduction of new artificial intelligence applications into consumer devices. Spectral filtering technology takes advantage of the very-near-infrared (VNIR) wavelengths, which even low-cost mobile phone cameras can detect. Artificial intelligence can be used to interpret this environmental spectral data within images, which is not visible to the naked eye.
  • New sensor for measuring electric field strength
    Accurately measuring electric fields is important in a variety of applications, such as weather forecasting, process control on industrial machinery, or ensuring the safety of people working on high-voltage power lines. Yet from a technological perspective, this is no easy task.
  • Micro-spectrometer opens door to a wealth of new smartphone functions
    Use your smartphone to check how clean the air is, whether food is fresh or a lump is malignant. This has all come a step closer thanks to a new spectrometer that is so small it can be incorporated easily and cheaply in a mobile phone. The little sensor developed at TU Eindhoven is just as precise as the normal tabletop models used in scientific labs. The researchers present their invention on 20 December in the journal Nature Communications.
  • Thin films of a lead-free piezoelectric finally match the performance of the lead-bearing standard
    An advance in fabrication technology has greatly improved the material quality and performance of thin films of a lead-free 'piezoelectric' material. This development by A*STAR researchers promises to unlock a lead-free alternative to the lead–zircon–titanate (PZT) standard.
  • Optically tunable microwave antennas for 5G applications
    Multiband tunable antennas are a critical part of many communication and radar systems. New research by engineers at the University of Bristol has shown significant advances in antennas by using optically induced plasmas in silicon to tune both radiation patterns and operation frequency.
  • Amorphous metallic glass for high-sensitivity MEMS microphones
    Advanced microphones using microelectromechanical systems (MEMS) are capable of supporting new user interactions with "smart" devices, like chatting with Apple's Siri, or Amazon's Alexa. The key to achieving the high sensitivity desired for these microphones, you might be surprised to learn, is tied to the "admittance" or "compliance" of its membrane components.
  • Piezoelectrics stretch their potential with a method for flexible sticking
    Piezoelectric materials are used for applications ranging from the spark igniter in barbeque grills to the transducers needed by medical ultrasound imaging. Thin-film piezoelectrics, with dimensions on the scale of micrometers or smaller, offer potential for new applications where smaller dimensions or a lower voltage operation are required.

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