Novgorod State University (NovGU) has presented an innovative technology for measuring weak magnetic fields with a magnetopiezo fiber. This was announced by Elena Ivasheva, one of the authors of the development.
Magnetopiezo fiber is a layered composite consisting of fibrous structures — magneto fiber and piezo fiber. The magneto fiber strands react to the magnetic field and deform depending on its strength. At the same time, the piezo fiber generates an electrical voltage in response to this deformation. By measuring the voltage, you can accurately determine the strength of the magnetic field.
It is thanks to this fibrous, rather than lamellar, structure that the greatest magnetoelectric effect is achieved, and it is possible to measure ultra-small values of physical quantities. And then it's a matter of practice: we were able to connect these materials so that the fibers of each began to work in conjunction: fibers that react to the magnetic field, and fibers that generate electrical voltage.
The problem of measuring small magnetic fields is relevant throughout the world. In medicine, the new technology can be used for accurate diagnostics of a person's health, measuring the magnetic fields of the heart and brain. In geology, magnetopiezo fiber will help in the study of soils and the search for mineral deposits.
Scientists continue theoretical and experimental research to improve the new technology. In the future, developers plan to introduce devices based on magnetopiezo fiber at enterprises in the Novgorod region.
Earlier, www1.ru reported that scientists set a new record for the accuracy of measuring the magnetic moment of a muon.
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