The HM 161.83 accessory is a glass cut-out for the HM 161 experimental flume and is intended for use with a PIV system, e.g. HM 161.81.
The installation of a glass cut-out in the bottom of the flume makes it possible to position a light source (laser or LED) below the experimental section. The incidence of light for the illumination of the particles is therefore independent of disturbances caused by a moving water surface.
The glass cut-out is located in the middle part of the experimental section and has a rectangular geometry. Different positions, dimensions and geometries of the glass cut-out are possible.
The glass cut-out is part of the HM 161 experimental flume and must be taken into account in the design. A subsequent installation is not possible.