Measuring system for measuring pressure with at least one pressure pick-up

摘要

The pressure pick-ups (1,11) are provided respectively with filters (5,15) connected to their respective outputs. The filters are high pass, band pass and/or low pass filters. The outputs of the filters are connected to a common measurement output line (20). The pick-up for the high frequency pressure fluctuations is designed as a piezoresistive pressure pick-up. The pressure pick-up suitable for low frequency pressure fluctuations is designed as a mechanical pick-up. A measurement amplifier (3,13) is respectively connected between the pick-ups and the filters.