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  2. Shock and vibration data logger - Wikipedia

    en.wikipedia.org/wiki/Shock_and_vibration_data...

    A logger comprises sensors such as accelerometers, storage media, a processor and power supply. The sensors measure and store shocks either as the entire waveform, summary data, or an indication of whether a threshold value was observed . Some devices have accelerometers built into the unit while others can use external accelerometers.

  3. Wireless device radiation and health - Wikipedia

    en.wikipedia.org/wiki/Wireless_device_radiation...

    The antennas contained in mobile phones, including smartphones, emit radiofrequency (RF) radiation (non-ionizing "radio waves" such as microwaves); the parts of the head or body nearest to the antenna can absorb this energy and convert it to heat or to synchronised molecular vibrations (the term 'heat', properly applies only to disordered molecular motion).

  4. Consumer Reports is a United States-based non-profit organization which conducts product testing and product research to collect information to share with consumers so that they can make more informed purchase decisions in any marketplace.

  5. Vibration calibrator - Wikipedia

    en.wikipedia.org/wiki/Vibration_Calibrator

    Vibration calibrators are most often used for testing and checking vibration sensors and measuring instruments at the site of their operation and are, therefore, usually transportable and battery operated. The most commonly occurring vibration frequency of calibrators is 159.2 Hz, which is equivalent to a radian frequency of 1000 rad/s. The ...

  6. Electromagnetic radiation and health - Wikipedia

    en.wikipedia.org/wiki/Electromagnetic_radiation...

    Warning sign next to a transmitter with high field strengths. While the most acute exposures to harmful levels of electromagnetic radiation are immediately realized as burns, the health effects due to chronic or occupational exposure may not manifest effects for months or years. [17] [18] [4] [19]

  7. Vibration-powered generator - Wikipedia

    en.wikipedia.org/wiki/Vibration-powered_generator

    Sensors in inaccessible places can now generate their own power and transmit data to outside receivers. [2] The generator was developed to be used in air compressors, and is able to power things in high vibration environments like sensors on machinery in manufacturing plants, or sensors that monitor the health of bridges.