METHOD FOR DETERMINING THE NON-STATIONARY FORCE AND A DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2021 - IPC G01L5/00 G01M17/00 

FIELD: measurement technology.

SUBSTANCE: invention relates to the field of measurement technology and makes it possible to determine non-stationary forces using dynamometers with high accuracy in a wide frequency range in both inertial and non-inertial coordinate systems. The application of force to the dynamometer and use of the readings of the dynamometer and the acceleration measurement device are carried out. A device for measuring acceleration is set on the element, connecting dynamometer with base, and for determining the required strength a formula is used, that takes into account the total mass of the element of dynamometer force application and load or model, the stiffness coefficient of the dynamometer, the first and second derivatives of the dynamometer readings time, the damping ratio of the dynamometer, dynamometer readings, the acceleration of the element, connecting the dynamometer with the base, measured by the accelerometer, and pitch angle. The device consists of an acceleration measurement device, a dynamometer, including an element, connecting with the base, a force application element, a sensor element and strain gauges for converting the deformation of the sensor element into an electrical signal. The acceleration measuring device is attached to the element, connecting the dynamometer with the base in the direction of operation of the dynamometer.

EFFECT: technical result is improved accuracy of determining the dynamic load and ensuring the determination of non-stationary loads in a non-inertial coordinate system.

3 cl, 4 dwg