Device for contactless measurement of the profile object
Device for contactless measurement of profile objects includes a housing and installed the block longitudinal scan, the block transverse scan, the associated photo sensor and the optical system. Block longitudinal scanning is made in the form of a swinging arm actuator and the angle sensor, the unit transverse scan in the form of a relay mounted on the end of the swinging rod longitudinal scanning unit, and a swinging rod connected with the armature of the relay, the photosensor is in the form of two photodiodes located at the end of the swinging rod block transverse scanning, and optical system is located at the end of the swinging rod block longitudinal scan. Also there is a microswitch and a processing unit, consisting of serially connected integrator, key, series-connected n-threshold devices and indicator, as well as referencing the constant signals with n outputs, and the output of the key is connected with the first inputs of the n-threshold devices, the second inputs of which are connected to n outputs of the generator is constant signals. The technical result - raising awareness by identifying profile nonaxisymmetric object. 3 Il. It is known device that includes a housing that has a longitudinal scanning unit in the form of a swinging arm actuator and the angle sensor, the unit transverse scan in the form of a swinging rod installed on the anchor of the relay optical system and the photo-sensor in the form of two photodiodes placed at the end of the rod (USSR Author's certificate No. 1275206, CL G 01 21/20, publ. 07.12.1986,)A disadvantage of this device is the low information content, due to the inability to determine profiles nonaxisymmetric object when its position.An object of the invention is to increase the information content by identifying profile nonaxisymmetric object.The solution of the technical problem is achieved in that in a device that includes a housing that has a longitudinal scanning unit in the form of a swinging arm actuator and the angle sensor, the unit transverse scan in the form of a swinging rod installed on the anchor of the relay optical system and the photo-sensor in the form of two photodiodes placed at the end of the rod, additionally introduced microswitch and a processing unit consisting of series-connected other signals with n outputs, the key is connected with the first inputs of the n-threshold devices, the second inputs of which are connected to n outputs of the generator is constant signals.Comparative analysis of the prototype shows that the proposed device has a significant distinguishing features are new schema element: microswitch, the processing unit and new connections in the circuit device, which allows to make a conclusion about the presence of this technical solution patentability criterion of "novelty."The comparison of the proposed solutions with other technical solutions shows that the elements included in the structure of the processing unit, and the microswitch is widely known from the prior art, but only their introduction in the proposed device for contactless measurement of the profile of the object leads to the emergence of new properties, to increase the information content by measuring profiles nonaxisymmetric object.In Fig.1 shows a device for contactless measurement of the profile of the object; Fig.2 is a block transverse scan of Fig.3 - block processing.The device includes a housing 1, which has a unit longitudinal scan in the form of a swinging rod 2 with the actuator 3 and the sensor is practical system 7 and the photo-sensor 8 in the form of two photodiodes, placed on the end of rod 5, the controlled object 9, the micro-switch 10 and unit 11 of the information processing consisting of serially connected integrator 12, the key 13, the series-connected n-threshold device 14 and the indicator 15 and knob 16 constant signals with n outputs, and the output of the key 13 is connected with the first inputs of the n-threshold device 12, the second inputs of which are connected to n outputs of the knobs 16 constant signals.The device operates as follows.When enabled, the actuator 3 bar 2 starts to make swinging movement about an axis fixed on the sensor 4 of the angle signal which determines the position of the block transverse scan on the longitudinal axis of the controlled object 9. Relay 6 operates in the oscillatory mode, moving the photodiodes of the sensor 8 in the direction perpendicular to the longitudinal axis of the object 9, with a frequency on the order and higher-frequency longitudinal scan. When this error caused by the deviation of the trajectory of the swinging ends of the rods 2 and 5 from straightforward, small due to the large ratio of the length of the rod to the magnitude of movement. At the output of the photosensor 8 is a signal generated designed aphthosa, which is fed to the integrator 12. When a series of measurements from the microswitch actuates the key 13, and a signal proportional to the profile of the object is supplied to the n-threshold device 14 and the actuation of one of the n-threshold devices is supplied to one of the n inputs of the indicator corresponding to a particular profile nonaxisymmetric object. Upon further rotation of the object about its own axis will define a different profile of the object.Thus, this device allows you to define profiles of nonaxisymmetric of the object at a different position relative to its axis of rotation.Sources of information:USSR author's certificate No. 1275206, CL G 01 B 21/20, publ. 07.12.1986, (prototype).
ClaimsDevice for contactless measurement of profile objects, comprising a housing and installed the block longitudinal scan, the block transverse scan, the associated photo sensor and the optical system, and block longitudinal scanning is made in the form of a swinging arm actuator and the angle sensor, the unit transverse scan in the form of a relay mounted on the end of the swinging rod block longitudinal scan, Iwasa rod block transverse scan and the optical system is located at the end of the swinging rod block longitudinal scanning, characterized in that it has a microswitch and a processing unit, consisting of serially connected integrator, key, series-connected n-threshold devices and indicator, as well as referencing the constant signals with n outputs, and the output of the key is connected with the first inputs of the n-threshold devices, the second inputs of which are connected to n outputs of the generator is constant signals.
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.