Automated facility control straightness suspensions
The invention relates to a geodetic instrument and can be used to control the straightness of suspensions of fuel assemblies for nuclear power plants with RBMK-type reactors. Automated facility control straightness suspension contains stand with control points at which there is a suspension and sensors for measuring the straightness of the suspension. Stand with the suspension vertically, and sensors photoelectric type is stationary and connected to a common control unit. The technical result consists in increasing the accuracy and reliability of the results of geodetic measurements, automation of the measurement process. 1 Il.
The invention relates to a geodetic instrument and can be used to control the straightness of suspensions of fuel assemblies for nuclear power plants with RBMK-type reactors.
A device designed to control the straightness of suspensions containing horizontal stand with two anchor points at the beginning and in the middle, on which is located the suspension and discretely spaced throughout the length of the evaluation of the ski. A disadvantage of the known device is that it does not allow you to get the results of geodetic measurements with the required accuracy, as a suspension in a horizontal position under the action of its own weight has a non-uniform deflection along the entire length due to different diameters of individual sections, and, in addition, before each measurement must be removed and replaced contact sensors, which reduces the accuracy of geodetic measurements and makes it impossible to automate measurements .
The objective of the invention is to improve the accuracy and reliability of the results of geodetic measurements and automation of the measurement process.
This object is achieved in that the Automated test stand straightness pendants“ includes the stand with control points at which there is a suspension and sensors for measuring the straightness of the suspension, according to the invention a stand with the suspension is vertical, and sensors photoelectric type is stationary and connected to a common control unit.
New features in the invention are: a stand with the suspension vertically, and sensors photoelectric type closed the other technical solutions in this field made it possible to draw a conclusion on the conformity of the proposed solutions to the criteria of “novelty” and “inventive step”.
The invention is illustrated in the drawing. In Fig.1 proposed functional diagram of an automated test stand straightness suspensions, which contains upright stand 1 with anchor points 2 and 3, on which is fixed the suspension 4, the photoelectric sensors of type 5 are located along the suspension at different levels A1, A2, A3, A4 and connected to the control unit 6.
Automated facility control straightness suspension works as follows. Suspension 4, straightness which is located vertically on the supporting points 2 and 3 and has the ability to turn around its geometric axis. At different levels A1, A2, A3, A4 along the suspension 4 are photoelectric sensor 5 connected to a common control unit 6. On command from the control unit 6 are determined sequentially using each of the photoelectric sensor 5 deflection points of the geometric axis of the suspension from linearity at all levels A1, A2, A3, A4, first in one plane, and then after the turn of the suspension 4 around its axis at 90° in the other plane. The result is an overall view of the curvature of the geometric axis of the suspension (deviation from pryamolineinosti installed in the reactor Department of the Kursk NPP on the third block and is being prepared for installation on the fourth block.
Sources of information:
1. The study of deformations of structures and equipment INPP during the commissioning. The Report MIIGAiK.n 0183.0027081. 1987. Novosibirsk, 1987, 106 S.
Automated facility control straightness suspensions containing stand with control points at which there is a suspension and sensors for measuring the straightness of the suspension, characterized in that the stand with the suspension vertically, and sensors photoelectric type is stationary and connected to a common control unit.
FIELD: railway transport; instrument technology.
SUBSTANCE: proposed wear checking system contains optical receiving projection system and converting-and-calculating unit. It includes also car position pickup and car counter whose outputs are connected to inputs to inputs of converting-ands-calculated unit. Optical receiving projection system consists of sets of stereo modules. Rigid structure of each module includes two CCD television cameras and lighting unit. Outputs of stereomodules are connected to corresponding inputs of converting-and-calculating unit. Stereomodules are rigidly installed relative to each other.
EFFECT: enlarged operating capabilities.
3 cl, 2 dwg
FIELD: measuring arrangements.
SUBSTANCE: device comprises unmovable base provided with the first cantilever, two carriages provided with drives controllable with a computer, pickup of linear movements, arrangement for mounting blade and first measuring channel connected with the computer. The first carriage is mounted on the unmovable base and is made for permitting movement parallel to the X-axis. The first measuring passage is defined by the optoelectronic head and units secured to the unmovable base, third carriage provided with an actuator controlled by a computer and pickup of linear displacements, second measuring channel, first and scone markers of the blade with actuating members controlled by a computer, arrangement setting the blade mounted on the first carriage and made for permitting rigid orientation of the blade in the vertical plane, second and third carriages arranged on the first and second cantilevers, respectively, and made for permitting movement parallel to the Z-axis, first and second markers of the blade, fiber optic heads of the first and second measuring channels arranged on the second and third carriages from the both sides of the study blade. The objectives of the fiber optic heads are mounted for permitting triangulation link of the photodetector with the sourced through the blade surface of the blade to be tested.
EFFECT: enhanced efficiency.
6 cl, 7 dwg
FIELD: measuring engineering.
SUBSTANCE: method comprises setting the article to be tested on the working table, moving the nonflatness meter, determining the amplitude of nonflatness, and determining coefficients of nonflatness. The device comprises source of light, multielement photodetector, objective, and computer.
EFFECT: enhanced reliability.
5 cl, 7 dwg
FIELD: measuring instruments.
SUBSTANCE: the interferometer for controlling of the form of prominent, concave spherical and flat surfaces of large-sized optical components has a source of monochromatic radiation, a collimator and an objective, one after another located a beam divider, a flat mirror and an aplanatic meniscus with a reference surface and also an observation branch located behind the beam divider in beam return and a working branch consisting out of a spherical mirror with a compensator which form a focusing system. Depending of the form of a controlled surface focusing of the working branch of the interferometer is executed at replacing the compensator and the basic block of the interferometer which has an illuminating branch. A beam divider, a flat mirror, an aplanatic meniscus and an observation branch relative to a fully stabilized spherical mirror along an optical axis on such a distance at which the beams reflected from the spherical mirror fall on the controlled surface transversely to its surface.
EFFECT: expansion of nomenclature of controlled surfaces, decreasing large-sized dimensions of the interferometer.
2 cl, 3 dwg
FIELD: the invention refers to measuring technique.
SUBSTANCE: the mode of measuring the form of an object includes formation of a light line on the surface of the object with the aid of the light-emitting system lying in the preset cross-section of the object, getting the image of the light line, its processing and definition of the coordinates of the profile of the cross-section of the object. AT that collateral light lines are formed on the surface by turns with the aid of two light-emitting systems illuminating the surface in preset cross-section of the object at different angles in its every point, images of light lines are received. On each of them sites are revealed. A resultant image is compiled out of the images of the indicated sites. According to this resultant image the coordinates of the profile of the cross-section of the object are determined. The arrangement for measuring the form of the object has a light-emitting system optically connected with a photoreceiver and a computing unit. It also has one additional light-emitting system optically connected with a photoreceiver and a commuting unit connected with its input to the computing unit, and with its output - with every light-emitting system. Optical axles of light-emitting system are placed in one plane and located to each other at an angle equal 5-800.
EFFECT: the invention increases accuracy of measuring by way of excluding the distortions of the zone of influence on the results of measuring.
13 cl, 5 dwg
FIELD: measuring equipment.
SUBSTANCE: method includes lighting object by collimated parallel beam of coherent monochromatic light, directed at angle of raising of screw surface relatively to object axis, as which object with screw surface is used, receiving optical image of its profile and following processing of received profile of image to perform further calculations of its parameters, while lighting of object is performed concurrently on two portions by collimated parallel beams of coherent monochromatic light, directed at raising angle of screw surface relatively to object axis, while these two beams are positioned symmetrically relatively to longitudinal axis of object and two images of said profile are received, mutual position of separate elements in which does not depend on presence of vibrations and shaking.
EFFECT: higher quality.
1 dwg, 1 ex
FIELD: measurement technology.
SUBSTANCE: device for automatic measuring coordinates of string plummets of hydraulic structures has reflecting screen, illumination source, two optical systems each of which is blocked with corresponding electro-optical array, device for measuring coordinate of string's projection, digital serial communication desk. Device also has resolver that has in turn two input serial communication desks, which have their outputs connected with controller, and indicator.
EFFECT: high precision of measurement of coordinates of string plummets.
2 cl, 1 dwg
FIELD: measuring engineering.
SUBSTANCE: method comprises directing a coherent light beam at the surface to be tested, producing and recording interferogram of the light path difference, and processing the interferogram. The tested and reference surfaces are exposed to the second coherent light beam, and the second interferogram of the light path difference is created. The second interferogram is provided with the additional light path difference with respect to that of the first interferogram, which is equal to the one fourth of the beam wavelength. The light path difference of the first interferogram is determined at specific points of the surface to be tested from the signal of illumination in one of two interferograms. The device comprises source of coherent light, first filter-condenser, first and second light-splitting units, interferometer composed of tested and reference surfaces, unit for measuring optical length of the beam, first projecting unit, recording unit, observing unit, and unit for processing the interferogram. The device also has two light-splitting units between which two pairs of transparent diffraction lattices are interposed. The filter-condenser, the second light-splitting unit, and λ/4 lattice are arranged in series in the direction of the beam.
EFFECT: enhanced precision.
4 cl, 8 dwg
FIELD: measuring engineering.
SUBSTANCE: method comprises setting the article to be controlled on the movable traverse gear having two extent of freedom, illuminating the surface of the article by light, receiving the light reflected from the surface of the article with the use of a photodetector, moving the article parallel to the X-axis, determining coordinates of the light spots on the photodetectors of the current values of the heights of the article shape, locking the position of the table, scanning the main section of the article shape, comparing it with the reference one , and determining the quality of the article shape. The main section is scanned by moving the article parallel to the Y-axis, when the traverse gear is in a position determined from the formula proposed. The device comprises unmovable horizontal base, vertical cantilever secured to the base, unit for measuring the article shape mounted on the vertical cantilever, two carriages that define a traverse gear and provided with the individual drives controlled by a computer, and pickup of linear movements. The first carriage moves parallel to the X-axis, and the second carriage is mounted on the first one and moves parallel Y-axis.
EFFECT: improved quality of control.
4 cl, 4 dwg
FIELD: measuring engineering.
SUBSTANCE: device comprises housing that receives electric lamp, toroidal lens, conical mirror of ring vision, lens, and scaling grid arranged in series. The device is additionally provided with aperture with ring and central round recesses positioned in front of the lamp, ring and round color filters mounted in front of the recesses, and second mirror cone positioned behind the aperture. The top of the cone points to the lamp. The semi-transparent mirror, color filter, measuring grid, and first TV camera are arranged along the longitudinal axis of the housing behind the lens. The second color filter, second measuring grid, and second TV camera are arranged in series along the perpendicular to the axis of the housing behind the lens.
EFFECT: expanded functional capabilities.