Patent UA-89122-C2 (UA)
Title: Digital distance measuring device
Inventor: KONDRATOV VLADYSLAV TYMOFIIOVYCH
IPC: G01C3/00
Filed: 2008-05-22
Abstract: The invention relates to area of measuring engineering, in particular to pulse laser distance measuring devices that are used first of all for measurement of distances in geodesy, navigation and building, etc. Digital distance to remote object measuring device includes generator of high-frequency pulses, source of optical pulses of given watt-second area, digital measuring device, keyboard, flash memory, common bus and micro-controller port (D) of which through common bus is connected to inputs-outputs of digital measuring device, flash-memory and keyboard, it includes as well connected to each other in series photo-receiver and amplifier-former of pulses with given volt-second area, connected in series to each other logical element (AND”, and pulse counter outputs and inputs of control of which are connected to input-outputs of port “C” of micro-controller, channel for object visualization that includes placed in sequence and optically connected to each other and eye of operator semi-transparent plate, focusing lens and ocular with sight, optical-mechanical system that consists of reflecting mirror placed on first known object and three objectives first and second of which are placed on optical axis of transmission section and connected to the first and the second opposite in diameter outputs of source of optical pulses along optical axis, respectively, on which objects with rated by value and unknown distances, respectively, are placed, and the third objective is placed on optical axis of receiving section. To digital measuring device are additionally included second measuring device inputs of which are connected to common bus, transformer “angle of turn – code” control inputs of which are connected to input-outputs of port “B” of micro-controller. Electric delay line and “D”-trigger input of zero setting of which is connected to output of amplifier-pulse former, input of unit setting is connected to higher register of port “A” of micro-controller other registers of which are connected to input of control of source of optical pulses, at that input of synchronization of “D”-trigger is connected to output of high frequency pulse generator to which inputs of electric delay line are connected as well, with its output connected to first input of logical element “AND” second input of which is connected to output of “D”-00trigger that is connected to input of serial port “E” of micro-controller, at that to channel of visualization of object at angle 90° first semi-transparent plate is included, this is optically connected to optical output of second digital measuring device and through focusing lens and ocular – to operator’s eye, to optical-mechanical system of measuring device additionally are included rotary and reflection mirror, this is cinematically connected to output of transformer “turn angle – code”, aperture diaphragm, second semi-transparent plate, second and third reflecting mirrors, fourth and fifth objectives, first and second rectangular prisms, at that the upper and the lower facets of the second rectangular prism are optically connected through aperture diaphragm and second semi-transparent plate to input of photo-receiver and first semi-transparent plate of channel of object visualization, the upper facet of the second rectangular prism is optically connected as well, through third reflecting mirror and fourth objective to the upper and the lower facets of the first rectangular prism the lower edge of which additionally through the second reflecting mirror and fifth objective is optically connected to the output of the third objective of the receiving section to which through rotary reflecting mirror, second facet of second rectangular prism and semi-transparent plate input of photo-receiver is optically connected. Digital distance measuring device proposed provides increase of accuracy of measurement.