Vibration calibration at high frequencies

Purpose and goal: ** Denna text är maskinöversatt **

The goal of the project is to expand the frequency range where the NMI has the ability to perform primary calibration of acceleration. A second objective is to be able to perform primary calibration of laser vibrometers. Expected results and effects: ** Denna text är maskinöversatt **

After the project, the NMI is expected to be able to provide industry and society with traceable vibration calibrations up to 20 kHz. Approach and implementation: ** Denna text är maskinöversatt ** The project is divided into four parts: - Demodulation of the laser-Doppler signal - Mechanical excitation at high frequencies

- Methodology for primary calibration of laser vibrometers up to 20 kHz. - Methodology for validation of laser vibrometers up to 200 kHz.