This article discusses the development of a magnetometer calibration device, which is controlled by a microcontroller, Arduino [1, 2], which can receive, process and transmit the necessary commands to the peripheral part of the installation using the written program code. The need for buffer circuits and elements allows you to control I / O devices. With their help, interface hardware is implemented. Structural and functional diagrams of the device were developed. And also the calculation of the parameters of the Helmholtz coils was carried out, their 3D model was built. With the help of the Gaussmeter, a full-scale experiment was carried out, which confirmed the operability of the device and its effectiveness.

Keywords: control and measuring device, induction, Helmholtz coils, gaussmeter

This article discusses one of the parts of the development of a device for testing samples of magnetostrictive materials. A study of various designs and an analysis of the sensitivity of the measuring system are presented. The substantiation of the use of a magnetic shunt to increase the sensitivity is given, which is confirmed in field experiments.

Keywords: magnetostrictive materials, basic magnetization curve, magnetic shunt, magnetic flux