Abstract: The invention refers to measuring equipment and is a mechanical stress sensor. The sensor has a rectangular plate of a polymer material the top surface of said rectangular plate having a cavity where a detector is located. Inside the rectangular plate there is a preliminary tensile amorphous ferromagnetic microwire located inside a measuring coil. The microwire is connected to a first pair of contact pads, while the differential measuring coil is connected to a second pair of contact pads. Both pairs of contact pads are connected to the detector. The detector has an output which is connected to an analog to digital converter coupled with a personal computer.

Abstract: Field of the Invention. This invention relates to technical diagnostics and nondestructive control of materials and can be used for the construction and operation of measuring devices, more specifically, mechanical stress sensors. Disclosure of the Invention. The technical result achieved by the invention is an increase the sensor functionality by making it capable of measuring signals caused by local mechanical loads and detecting various types of mechanical loads, e.g. tension, compression and torsion, as well as reducing the effect of noise and increasing the sensitivity. Said technical result is achieved as follows. The mechanical stress sensor disclosed herein comprises a rectangular plate of a polymer material. The top surface of the rectangular plate has a seat in the form of a centrally symmetric cavity where the detector is located.