Detection device for concentration of fluid has spring element suspended in measuring chamber, with buoyant body fitted to it subjected to laser light source

摘要

The fluid concentration detection device has a gas-tight measuring chamber (2) containing a buoyant body (6). A spring element (4) is suspended in the measuring chamber. The buoyant body is fitted to it and is subjected to the emissions of a laser light source. A measuring device (7) detects the diversion of the spring element, which detects the path change of the laser light falling on the buoyant body and reflected onto the measuring device.