Abstract: Apparatus and method for use in determining the location of object surface points wherein a short pulse of optical energy is projected at the object surface and a time dependent gain function is used to modify the reflected optical energy resulting from the pulse so that time delay information indicative range can be developed and processed.

Abstract: A practice for developing data for use in the three-dimensional location of the points on an object surface wherein first and second sensor means are used to cause first and second electromagnetic radiation to be directed at the object surface at first and second directions which are in a common plane.

Abstract: A method and apparatus is provided for calibrating distance measuring instruments, in particular, optical three dimensional measurement sensors. The method is not restricted to aligning the motion of the calibrating surface to be parallel to the sensor centerline. Accordingly more than one sensor can be present during the calibration procedure. This leads to the practicality of aligning multiple sensor systems using a common translation stage for all sensors or using translation stages that are a part of the system. The joint calibration of sensors embedded in a system guarantees proper registration without additional steps. A method for calibrating optical sensors to accuracies approaching the wavelength of light is given.

Abstract: An arrangement for controlling the flow of fluid in which the fluid is allowed to flow through a selected number of parallel paths of various flow capacities as determined by restricting orifices and cutoff valves. Accurate volume/length of fluid is dispensed at variable velocities by controlling both applicator velocity and flow rate. An arrangement is also provided for controlling the shape of the deposited fluid employing controlled air flow confinement.