Laser optic gas density detecting method for e.g. air medium, involves connecting rectangular mirror frame to laser/sensor optics of electronic light delay overview over critical distances for galvanic and mechanical decoupling

摘要

The method involves detecting acoustic transverse pressure waves in an isolated detecting section over a fixed range. An isolated detecting sectional plane is parallely scaled in coordinated distances, and respective output signals are super-positioned in membrane-based unidirectional microphones. A rectangular mirror frame is connected to laser/sensor optics of electronic light delay overview over critical distances in a laser optic manner for electromagnetic parasitic induction and/or galvanic and mechanical decoupling. An independent claim is also included for an arrangement for detecting laser optic gas density.