| Autor: |
Petrov R; Institute of Electronic and Information Systems, Novgorod State University, 173003 Veliky Novgorod, Russia., Leontiev V; Institute of Electronic and Information Systems, Novgorod State University, 173003 Veliky Novgorod, Russia., Sokolov O; Institute of Electronic and Information Systems, Novgorod State University, 173003 Veliky Novgorod, Russia., Bichurin M; Institute of Electronic and Information Systems, Novgorod State University, 173003 Veliky Novgorod, Russia., Bozhkov S; Faculty of Machinery and Construction Technologies in Transport, Todor Kableshkov University of Transport, 1113 Sofia, Bulgaria., Milenov I; Faculty of Telecommunication and Electrical Equipment in Transport, Todor Kableshkov University of Transport, 1113 Sofia, Bulgaria., Bozhkov P; Olimex Ltd., 4002 Plovdiv, Bulgaria. |
| Abstrakt: |
The paper is devoted to the possibility of using magnetoelectric materials for the production of a crankshaft position sensor for automobiles. The composite structure, consisting of a PZT or LiNbO 3 piezoelectric with a size of 20 mm × 5 mm × 0.5 mm, and plates of the magnetostrictive material Metglas of the appropriate size were used as a sensitive element. The layered structure was made from a bidomain lithium niobate monocrystal with a Y + 128° cut and amorphous metal of Metglas. Various combinations of composite structures are also investigated; for example, asymmetric structures using a layer of copper and aluminum. The output characteristics of these structures are compared in the resonant and non-resonant modes. It is shown that the value of the magnetoelectric resonant voltage coefficient was 784 V/(cm·Oe), and the low-frequency non-resonant magnetoelectric coefficient for the magnetoelectric element was about 3 V/(cm·Oe). The principle of operation of the position sensor and the possibility of integration into automotive systems, using the CAN bus, are examined in detail. To obtain reliable experimental results, a special stand was assembled on the basis of the SKAD-1 installation. The studies showed good results and a high prospect for the use of magnetoelectric sensors as position sensors and, in particular, of a vehicle's crankshaft position sensor. |
