Inventor of mobile measurement system is considered to be by Leonardo da Vinci's sketches on which are stored in the Louvre, you can see the sliding mast "yardstick", mounted on a cart drawn by four in which the horses. Two slaves rotate the gate mechanism of guidance, next to the wagon keeper is to compute the coordinates of the points at the top of the mast. Of course, neither of which the practical use of this device at the time could not be speech: a simple means of measurement provides an order of magnitude greater accuracy. The rebirth of mobile measurement systems occurred in the late 20th century, when the level of technology has allowed to begin production of accurate coordinate machines with sufficiently low cost. Today on the accuracy of the best mobile measurement systems approach to fixed, while having almost an order of magnitude lower cost. The following types of Mobile measuring systems: The machine type 'Hand': consists of a base that can be fixed to any flat surface or be based on a portable tripod, and several articulated knees.
In each hinge located Encoders that are sent to computer information about the relative positions knees. Software in real time calculates the coordinates of the measuring probe, which ends with the hand. KIM working area is a sphere with a diameter of 1.2 to 3.7m (depending on the length of the arm), the probe can easily get to almost anywhere inside this sphere. The hand does not have the drive, moving the measuring probe and the fixation point measurement made by the operator.