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ESL Incorporated, or Electromagnetic Systems Laboratory, was a subsidiary of TRW, a high technology firm in the United States that was engaged in software design, systems analysis and hardware development for the strategic reconnaissance marketplace.
A buzzer or beeper is an audio signaling device, [1] which may be mechanical, electromechanical, or piezoelectric (piezo for short). Typical uses of buzzers and beepers include alarm devices , timers , train and confirmation of user input such as a mouse click or keystroke.
An electromagnetic acoustic transducer (EMAT) is a transducer for non-contact acoustic wave generation and reception in conducting materials. Its effect is based on electromagnetic mechanisms, which do not need direct coupling with the surface of the material. Due to this couplant-free feature, EMATs are particularly useful in harsh, i.e., hot ...
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The device was singled out for criticism in a joint report by children's commissioners for all parts of the UK, which formed part of a United Nations review of standards in the UK. [30] A report for the Council of Europe called for a ban in 2010, suggesting use of the Mosquito may breach human rights law. [27]
Additionally, piezoelectric technology is insensitive to electromagnetic fields and radiation, enabling measurements under harsh conditions. Some materials used (especially gallium phosphate or tourmaline ) are extremely stable at high temperatures, enabling sensors to have a working range of up to 1000 °C.
Sensormatic is a subsidiary of Tyco International (now owned by Johnson Controls) that manufactures and sells electronic article surveillance equipment. They manufacture acusto-magnetic (AM) electronic article surveillance systems. Sensormatic Electronics Corporation was purchased by Tyco International in 2001.
America’s Got Talent has showcased some of the world's most skilled, unusual acts since its 2006 debut on NBC. Scores of singers, dancers, magicians and various other acts have left us ...