he ILA GmbH offers services and products to acquire andor research volume flow rate. We supply window chambers, which in combination with our LDV solutions are taken as a standard measurement system to calibrate volume flow rate measurement devices. Furthermore, we offer a revolutionary In-Situ optical measurement method to calibrate large volume flow rate measurement devices. The main advantage of this method is the possibility to calibrate large devices without the need to demount them. Optical measurement allows the investigation of flow phenomena with a very high precision and without any disturbances by a sensor (e.g. hot wire anemometer). However an optical access to the fluid must be assured. For this purpose ILA is offering tailor made windows chambers to fulfil a diversity of requirements which may partially be contradictory. According to the flow parameters and fluid you can choose between a window chamber made from polyamide or stainless steel.