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  2. Triboelectric effect - Wikipedia

    en.wikipedia.org/wiki/Triboelectric_effect

    The size of this effect varies greatly depending on the contacting materials; the decrease in charging ranges from up to a factor of 10 or more to very little humidity dependence. [100] Some experiments find increased charging at moderate humidity compared to extremely dry conditions before a subsequent decrease at higher humidity. [101]

  3. Heat index - Wikipedia

    en.wikipedia.org/wiki/Heat_index

    The heat index (HI) is an index that combines air temperature and relative humidity, in shaded areas, to posit a human-perceived equivalent temperature, as how hot it would feel if the humidity were some other value in the shade. For example, when the temperature is 32 °C (90 °F) with 70% relative humidity, the heat index is 41 °C (106 °F ...

  4. Battery indicator - Wikipedia

    en.wikipedia.org/wiki/Battery_indicator

    A battery indicator (also known as a battery gauge) is a device which gives information about a battery. This will usually be a visual indication of the battery's state of charge . It is particularly important in the case of a battery electric vehicle .

  5. Humidity indicator card - Wikipedia

    en.wikipedia.org/wiki/Humidity_indicator_card

    Maximum humidity indicator cards are irreversible, thus indicating the highest level of humidity experienced by cargo during its voyage, regardless of current (potentially lower) humidity levels. They provide a clear, unmistakable means of determining if goods have been exposed to damaging humidity levels during their journey.

  6. Tell-tale (automotive) - Wikipedia

    en.wikipedia.org/wiki/Tell-tale_(automotive)

    A group of tell-tales showing lights for "brake fluid", "stop lamp" and "check engine" Graphical tell-talesA tell-tale, sometimes called an idiot light [1] or warning light, is an indicator of malfunction or operation of a system, indicated by a binary (on/off) illuminated light, symbol or text legend.

  7. Capacitive sensing - Wikipedia

    en.wikipedia.org/wiki/Capacitive_sensing

    The capacitance change at every individual point on the grid can be measured to accurately determine the touch location by measuring the voltage in the other axis. Mutual capacitance allows multi-touch operation where multiple fingers, palms or styli can be accurately tracked at the same time.

  8. Battery management system - Wikipedia

    en.wikipedia.org/wiki/Battery_management_system

    A battery management system (BMS) is any electronic system that manages a rechargeable battery (cell or battery pack) by facilitating the safe usage and a long life of the battery in practical scenarios while monitoring and estimating its various states (such as state of health and state of charge), [1] calculating secondary data, reporting that data, controlling its environment ...

  9. Automotive battery - Wikipedia

    en.wikipedia.org/wiki/Automotive_battery

    A typical 12 V, 40 Ah lead-acid car battery. An automotive battery, or car battery, is a rechargeable battery that is used to start a motor vehicle.. Its main purpose is to provide an electric current to the electric-powered starting motor, which in turn starts the chemically-powered internal combustion engine that actually propels the vehicle.