Abstract: A filtering chip conveyor comprises: a conveyor tank arranged to retain a cutting fluid containing chips; and a continuous hinge belt at least party disposed inside the conveyor tank, the belt being arranged to rotate and to make turns at a tail end and at a discharge end, leaving a space between an upper flight and a lower flight of the belt. The chips are arranged to be transported by the belt to the discharge end to be discharged off the conveyor. The conveyor further comprises at least one filter box for filtering the cutting fluid that is to be discharged off the conveyor through the filter box. The filter box comprises a filter plate having photo etched or chemically milled orifices having a minimum aperture dimension of less than 0.3 mm and an open proportion of at least 15%.

Abstract: A method for combining shape data from multiple views in a common co-ordinate system to define the 3-D shape and/or colour of an object, the method comprising: projecting one or more optical datum(s)/markers onto the object surface; projecting light over an area of the object surface; capturing light reflected from the surface; using the optical datum(s)/markers as reference points in multiple views of the object, and using the multiple views and the reference points to determine the shape of the object.

Abstract: The invention provides a novel method for absolute fringe order identification in multi-wavelength interferometry based on optimum selection of the wavelengths to be used. A theoretical model of the process is described which allows the process reliability to be quantified. The methodology produces a wavelength selection which is optimum with respect to the minimum number of wavelengths required to achieve a target dynamic measurement range. Conversely, the maximum dynamic range is produced from a given number of optimally selected wavelengths utilised in a sensor. The new concept introduced for optimum wavelength selection is scalable, i.e. from a three wavelength system to a four wavelength system, from four wavelengths to five, etc.