Taring

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Taring ( Arabic taraha , remove, take away, see also tare (weight) ) means balancing a weight in order to establish a balance .

In a tare scale , which is based on the principle of a beam scale, the weighing pan has a counterweight that can be moved on a scale . The weight is moved until by the lever action , the balance between the weighing pan and the counterweight is made and the scale with the weighing value the mass can be read off of the weighing sample.

When diving , taring means balancing the diver's buoyancy (rise) and downforce (fall) . This makes it possible to float in the desired water depth. To do this, the diving equipment must first be put together in such a way that the weight of the diver is slightly greater than the buoyancy. The diver has a relatively large buoyancy due to his diving suit (depending on the material), which has to be compensated by lead weights . This makes it possible to submerge below the surface of the water. During the entire descent phase , the buoyancy compensator is filled with air in bursts so that lift and downforce are balanced at the desired depth. During the ascent at the end of the dive , the buoyancy compensator is deflated again gradually. The fine taring can also be controlled by targeted inhalation or exhalation.

literature

  • Thilo Künneth: Manual diving safety. Müller-Rüschlikon, Cham 2002, ISBN 3-275-01442-0 .
  • Roland Nater et al .: Weighing Lexicon: Guide to weighing terms. Springer, Berlin / Heidelberg 2008, ISBN 978-3-540-75907-2 .