RU1241820C - Device for automatic contacless control of geometric parameters of granules - Google Patents

Description

(46) 07.23.93, Bull. i 27

(21) 3788636/28

(22) 05.07.ZA

(72) E.P. Domor.atsky, I.N. Kreindlin, N.V. Kulikov, Yu.I. Pakhupkov, P.P. Oleinikov and A.L. Schetnikov

(56) I.E.Mack, W.lI.Pechin. Automatic Particle Size Onalysis of HTGR Recycle Fuel, ORNL-TH - 5907, 1977, 24 p. (54) (57) AUTOMATIC CONTACTLESS CONTROL DEVICE ... GEOGRAPHIC GRANULES PARAMETERS, containing a feeder, a granule separation separation unit, a calculator and a registration unit connected to its output, two optical detection units, each of which is which contains a light source, a collimator and a detector connected to an amplifier, shaper, characterized in that, in order to increase the accuracy of control and sorting of granules in real time, it

equipped with a position sensor, a third optical detection unit, identical to the first and second, the optical axis of which is orthogonal to the other, a unit for determining the coordinates of the points of the projection contours, a direct memory access unit and a sorting unit, each optical detection unit is equipped with sequentially arranged the course of the light beam after the count. the limotator with a two-component inverting system, an e-diffusing screen and an imaging system, the detectors are made of position-sensitive elements, the light sources are pulsed and connected to the output of the position sensor, and the outputs of the amplifiers-formators through the block for determining the coordinates of the points of the projection paths and the direct block memory memory with calculator inputs, connected; connected to sorting unit. 1 The invention is relocated to aptomatic automatic electroelectric granulometry devices and can be used for non-contact control of geometrical size and shape of fuel grains of large reactors. The purpose of the invention is to increase the accuracy of control and sorting of granules and the real scale of the belt. The drawing shows a block diagram of a device. The device contains a power supply unit G, a separation and supply unit 2, a temperature sensor, a 3-position sensor, three optical sensors (detection units 4, each of which contains the following 7th most closely related: pulse light source 5, collimator 6j two-component wrap-around system 7, the spectrally dissipating screen Of the forming system 9 was depicted by a single element with a sensory detector 10 and electrically blue amplifiers with it; the roving device P, and in addition, it contains a unit 12 for determining the coordinates of the points of the contour edges projection unit, direct memory access unit 13, calculator 1 4, recording unit 15, and sorting unit 16. The output of the 3 position sensor is electrically connected to the pulsed light sources 5, the three optical detection units 4 are located in space so that itx optical the axes are mutually orthogonal. The outputs of amplifiers-11 of the amplifiers 1I are sequentially through the block 12 for determining the coordinates of the points of the projection contours and the block 13 for direct access to the memory are electrically connected, c) the calculator 1A, one output of which is connected to the block 15 of the register1dsh5 and others ugo - to block 16 of the sortor. The device operates as follows. The granules of the controlled batch, which are in the feeder 5, flow to the separation and feeding unit 2, which carries out tnc separation and uniformly ao. The feed is fed to the control position located at the intersection of the mutually orthogonal optical axes of the three blocks A detection. At the moment each granule enters the control, the position sensor 3 receives a signal FKnK) 4efm5t pulse of 02 sources of light 5 with a duration (exposure time) of 2.0 μs, Parallel beams of light generated by collimators 6, simultaneously pulsed illumination granules resulting in its three mutually orthogonal shadow projections, the planes of which, using two-component reversible power systems 7, are mated to the planes M t for light scattering and screens 6, obtained on screens 8 of the image of shadow ECG1, enlarged by 2-5 times (depending on the support bandwidth) using imaging systems 9} are spun in the planes of the entrance pupils of multiple-position-sensitive detectors} 0, Each detector 10, work in recording mode (accumulated) information , stores the image of the corresponding shadow picture, after which, in read-only mode, it implements the line-by-line image frame in the amplifier-driver 11, which performs the amplification of the discriminated post-download video signals, as well as their conversion Digital Learning and Formation. After that, the digital signals from each detector, corresponding to each element of the image frame, are fed into the block 12 for determining the coordinates of the points of the projection contours in a sequential code, which determines the coordinates of each point of the contour relative to the frame of the image frame for each shadow projection and after testing it takes these coordinates into a direct memory access unit 13. This block provides the proactive input of the coordinates of the contour points into the o-sequence parallels JI Noi5 directly to the memory of the calculator 14, which calculates the absorption of the areas of shadow projections of the granules S ,, S n S and the dimensions of its one-dimensional projections on the direction of the НШ1 light beam h, h and h . Based on these values, the calculator 14 determines (reconstructs) the values of the linear sizes and shape of the granule by solving in real time the system of equations A ht. t g