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2. Load cell - Wikipedia

   en.wikipedia.org/wiki/Load_cell

   A load cell converts a force such as tension, compression, pressure, or torque into a signal (electrical, pneumatic or hydraulic pressure, ...

3. Modal testing - Wikipedia

   en.wikipedia.org/wiki/Modal_testing

   These frequencies are measured as modal frequencies. Usually a load cell is placed between the shaker and the structure to obtain the excitation force. For large civil engineering structures much larger shakers are used, which can have a mass of 100 kg and above, and are able to apply a force of many hundreds of newtons. Several types of ...

4. Lithium polymer battery - Wikipedia

   en.wikipedia.org/wiki/Lithium_polymer_battery

   Lithium polymer cells follow the history of lithium-ion and lithium-metal cells, which underwent extensive research during the 1980s, reaching a significant milestone with Sony's first commercial cylindrical lithium-ion cell in 1991. After that, other packaging forms evolved, including the flat pouch format.

5. Compressed-hydrogen tube trailer - Wikipedia

   en.wikipedia.org/wiki/Compressed-hydrogen_tube...

   Older tube trailers made of steel (Type I) usually carry about 100 kg (220 lb) per load, while new and more efficient composite trailers (Type IV) made of carbon fiber make it possible to carry up to 1 tonne (1.1 short tons; 0.98 long tons) per load. Modular tube trailers range from 8 to 54 tubes. [2]

6. Rechargeable battery - Wikipedia

   en.wikipedia.org/wiki/Rechargeable_battery

   A rechargeable battery, storage battery, or secondary cell (formally a type of energy accumulator), is a type of electrical battery which can be charged, discharged into a load, and recharged many times, as opposed to a disposable or primary battery, which is supplied fully charged and discarded after use.

7. Tesla Powerpack - Wikipedia

   en.wikipedia.org/wiki/Tesla_Powerpack

   The Powerpack is a bigger unit with 100 kWh (first generation) and 210 kWh (2nd generation) of storage for commercial and utility grid use. To meet the variety of energy needs in industry, "Powerpack is infinitely scalable", said Elon Musk. [8] The late 2016 Powerpack 2 probably uses 21700 cells. [9]