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  2. Level sensor - Wikipedia

    en.wikipedia.org/wiki/Level_sensor

    The measuring minimum level starts from a complete covering of the measuring element near the head end of the level sensor. Filling levels below the level probe are not detected. Depending on the application and mounting height, it is therefore necessary to adjust the level in the evaluation unit to the respective mounting height with an offset ...

  3. List of measuring instruments - Wikipedia

    en.wikipedia.org/wiki/List_of_measuring_instruments

    Measuring instruments in fiction: Captain Nemo and Professor Aronnax contemplating thermometers, barometers, clocks, etc. in Jules Verne's 1869-1870 science fiction novel Twenty Thousand Leagues Under the Seas Fun measuring instruments: a Love Meter and strength tester machine at a Framingham, Massachusetts rest stop.

  4. List of surveying instruments - Wikipedia

    en.wikipedia.org/wiki/List_of_surveying_instruments

    Level; Level staff; Measuring tape; Plane table; Pole (surveying) Prism (surveying) (corner cube retroreflector) Prismatic compass (angle measurement)

  5. Water level (device) - Wikipedia

    en.wikipedia.org/wiki/Water_level_(device)

    A water level device showing both ends at the same height. A water level (Greek: Aλφαδολάστιχο or (υδροστάθμη) [Alfadolasticho]) is a siphon utilizing two or more parts of the liquid water surface to establish a local horizontal line or plane of reference.

  6. List of electrical and electronic measuring equipment

    en.wikipedia.org/wiki/List_of_electrical_and...

    Displays waveform of a signal, allows measurement of frequency, timing, peak excursion, offset, ... Psophometer: Measures AF signal level and noise Q meter: Measures Q factor of the RF circuits Tachometer: Measures speed of motors Signal analyzer: Measures both the amplitude and the modulation of a RF signal Signal generator

  7. Hook gauge evaporimeter - Wikipedia

    en.wikipedia.org/wiki/Hook_gauge_evaporimeter

    A Hook gauge evaporimeter is a precision instrument used to measure changes in water levels due to evaporation. [1] It is used to precisely measure the level of a free water surface as an evaporation pan or a tank. The main users are meteorologists and water engineers, especially in hot, arid countries where water conservation is of vital ...

  8. Drawdown (hydrology) - Wikipedia

    en.wikipedia.org/wiki/Drawdown_(hydrology)

    It is the height of the free surface of water above a given point beneath the surface. [4] Pumping level is the level of water in the well during pumping. [8] Specific capacity is the well yield per unit of drawdown. [8] Static level is the level of water in the well when no water is being removed from the well by pumping. [8]

  9. Tide gauge - Wikipedia

    en.wikipedia.org/wiki/Tide_gauge

    A tide gauge is a device for measuring the change in sea level relative to a vertical datum. [2] [3] It is also known as a mareograph, [4] marigraph, [5] and sea-level recorder. [6] When applied to freshwater continental water bodies, the instrument may also be called a limnimeter. [7] [8]

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