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2. Rosette sampler - Wikipedia

   en.wikipedia.org/wiki/Rosette_sampler

   A rosette sampler is made of an assembly of 12 to 36 sampling bottles. [1] Each bottle is a volume that range from a minimum value of 1.2 L to a maximum value of 30 L. [1] The bottles are clustered around a cylinder situated in the center of the assembly, [1] where there is a sensing system called Sea-Bird or CTD, that stands for "Conductivity, Temperature and Depth", although other variables ...

3. CTD (instrument) - Wikipedia

   en.wikipedia.org/wiki/CTD_(instrument)

   The instrument is a cluster of sensors which measure conductivity, temperature, and pressure. Sensors commonly scan at a rate of 24 Hz. Depth measurements are derived from measurement of hydrostatic pressure, and salinity is measured from electrical conductivity. [1]

4. Moisture meter - Wikipedia

   en.wikipedia.org/wiki/Moisture_meter

   Measuring water leakage in exterior wall with Trotec T660 Moisture Measuring Device, using dielectric measurement method (indicative). Moisture meters are measuring instruments used to measure the percentage of water in a given substance, as physical properties are strongly affected by moisture content and high moisture content for a period of time may progressively degrade a material.

5. Water metering - Wikipedia

   en.wikipedia.org/wiki/Water_metering

   Smart metering technologies for water meters refer to advanced systems that enable real-time monitoring, data collection, and analysis of water usage through digital and connected devices. Unlike traditional mechanical water meters, smart meters are equipped with electronic components that measure water flow and transmit the data wirelessly to ...

6. List of measuring instruments - Wikipedia

   en.wikipedia.org/wiki/List_of_measuring_instruments

   A measuring instrument is a device to measure a physical quantity. In the physical sciences , quality assurance , and engineering , measurement is the activity of obtaining and comparing physical quantities of real-world objects and events .

7. Water quality - Wikipedia

   en.wikipedia.org/wiki/Water_quality

   The National Water Quality Inventory Report to Congress is a general report on water quality, providing overall information about the number of miles of streams and rivers and their aggregate condition. [65] The CWA requires states to adopt standards for each of the possible designated uses that they assign to their waters.