97 results about "Autocollimator" patented technology

The application provides a high-precision autocollimator based on the Tyman Green interference principle and an angle measuring method, aiming at solving the problem that the prior art cannot continue to break through the existing angle measuring precision due to the limitation of geometric optical principle and the influence of environmental factors. The autocollimator comprises a laser, a filtering collimation module, a beam splitter, a reference mirror, a plane mirror, a detector and a data acquisition and processing computer. After the autocollimator is leveled, the plane mirror is placed on a turntable to be measured, and the measurement is carried out when the turntable has no rotation angle and has a rotation angle, so that the laser is emitted to the filtering collimation module to be emitted as monochromatic parallel light to the beam splitter and is divided into two paths. One path is reflected by the plane mirror and then passes through the beam splitter to reach the detector again. The other path is reflected by the reference mirror and then reflected by the beam splitter to reach the detector again. The two beams interfere on the target surface of the detector, the detector records the interference image and uploads it to the computer to calculate the interference fringe offset, so that the angle measurement is completed.

The invention discloses a method for installing and adjusting a double-reading-head photoelectric encoder on a gyro accelerometer, which comprises the following steps of: initially installing a coded disc base and an optical component, measuring the size, adjusting a grating gap, reinstalling the optical component, installing the coded disc component, testing a signal, fastening the optical component and the coded disc component, installing a receiving plate and arranging a wire harness. The oscilloscope is used for observing sine and cosine signals and a zero position, the industrial personal computer is used for reading an angle value given by the signal processing and output circuit, the installation accuracy of the double-reading-head photoelectric encoder is judged, and the purpose that the double-reading-head photoelectric encoder is installed on the gyro accelerometer in a high-precision mode is achieved. The problem of high-precision installation of the double-reading-head photoelectric encoder in the limited space of the gyro accelerometer is solved, the installation and adjustment operation is simpler and more efficient, particularly, high-precision optical methods such as a multi-face prism and an autocollimator are not needed, and the method is more suitable for completing installation and adjustment or maintenance in off-line scenes such as a user site.

The application belongs to the technical field of double-head photoelectric autocollimator equipment, and particularly relates to a double-head photoelectric autocollimator, which comprises a photoelectric autocollimator body, object lens barrels are arranged on the two sides of the photoelectric autocollimator body, lenses are arranged in the object lens barrels, a sealing cover is hingedly arranged on one side of the object lens barrel, a mounting groove is formed in one side of the sealing cover, a through hole is formed in the middle of the outer wall of the sealing cover, a pressing rod is movably connected in the through hole, a limiting sliding block is arranged on the inner side of the through hole, an arc rotary sliding groove is slidably connected with the limiting sliding block on the outer wall of the pressing rod, a first mounting plate is fixed to one end of the pressing rod extending into the mounting groove, a plurality of telescopic rods are fixed to one side of the first mounting plate, and the same second mounting plate is fixed to the other ends of the plurality of telescopic rods; the application can clean dust on the lenses, has good cleaning effect, avoids the influence of dust on the accuracy of instrument measurement, and can well protect the lenses.

The application discloses a multi-source data compensation method for positioning precision of a motion unit of a complex micro-component ultra-precision controlled-shape machining system, relates to the technical field of complex micro-component ultra-precision controlled-shape machining, and is proposed to meet the requirement of high-precision creation of surface characteristic structures of a thin-wall spherical shell micro-component under the constraint of a narrow space. Technical points: a linear motion unit is controlled by a numerical control system program to reciprocate several times in a constant increment form in a full stroke and a working area, respectively; the position of the linear motion unit in the motion process is collected by a high-frequency laser interferometer; and multi-source error data in the whole area and the region are obtained through data processing. Based on the multi-source data compensation method, a multi-source data error compensation table is established, compensation is carried out through a numerical control program, and the positioning precision of the linear motion unit is calibrated. For a rotary motion unit, an autocollimator is used to calibrate the error, and further compensation is carried out in the program through the error table by an error synthesis method, so that the calibration and compensation of the positioning precision of each motion unit of the complex micro-component ultra-precision controlled-shape machining system are completed, and high-precision equipment support is provided for micro-structure high-precision creation.

A method for aligning two surveying instruments in a common space in a process that uses an autocollimation of a collimated light beam transmitted by a first surveying instrument and reflected by a second surveying instrument. In the alignment process, the first surveying instrument may emit a collimated light beam towards the second the surveying instrument and receive a reflection of the collimated light beam from the second surveying instrument in an autocollimator. The reflection may be generated for example by a mirror at the second surveying instrument. When the light beam is reflected such that autocollimation of the collimated light beam is achieved at the first surveying instrument, the first and second surveying instruments are in a predetermined positional relation with respect to one another. With a known predetermined positional relation between the reflecting mirror and the line of sight of the second surveying instrument, measurements by both surveying instruments can be made in a common coordinate system.

The application discloses a kind of optical lens centering positioning device and method based on multi-focus ring zone lens, the device is by autocollimator, multi-focus ring zone lens, precision five-dimensional adjusting frame, lens group to be measured, mirror seat, leveling centering device, air bearing, displacement sensor, marble frame, image display system, centering positioning measurement analysis system composition, mirror seat is installed on the centering leveling device of air bearing, and through displacement sensor to the center axis of mirror seat and the center axis of air bearing coincide, the spherical center of lens upper surface is located in the focal point of multi-focus ring zone lens, without adjusting the position of multi-focus ring zone lens, the high-precision lens can be quickly centered, and the assembling and adjusting time of lens is greatly reduced;The edge spread function of cross differentiation silk is analyzed by image processing and display system, so as to calculate the axial assembly error of lens, the application solves the problems of low optical lens centering positioning precision and low assembly efficiency.

The present application relates to the field of optical machine adjustment, and particularly relates to a kind of single-photon laser ranging system's visual axis collimator adjustment method, first 45 ° reflector and second 45 ° reflector are sequentially adjusted to the preset position on tooling bottom plate, and the normal relationship of one face of first 45 ° reflector, second 45 ° reflector and high-precision autocollimator is calibrated;Single-photon laser emission end and single-photon laser receiving end are respectively adjusted to the preset position on the ranging system bottom plate, the normal relationship of reference surface of single-photon laser emission end and single-photon laser receiving end and high-precision autocollimator is calibrated, and the normal relationship of the other face of first 45 ° reflector, second 45 ° reflector and high-precision autocollimator is calibrated.The optical machine adjustment method can reach the adjustment accuracy requirement of single-photon laser ranging system.

The invention discloses a calibration device and method for calibrating the parallelism of a measuring surface of a large outside micrometer. The device comprises a mechanical adjustment module, an optical imaging module and an image processing and calculating module, the mechanical adjusting module is used for adjusting the position of the micrometer; the optical imaging module comprises an autocollimator and a double-turning prism system, a high-resolution area array detector is arranged in the autocollimator, the double-turning prism system divides a single-path collimated light beam emitted by the autocollimator into two paths, the two paths of collimated light beams are respectively projected to two measuring surfaces of a micrometer and receive reflected light of the two paths of collimated light beams, and two independent cross images are formed on the detector; the image processing and calculating module displays a view field containing two cross images in real time, sets one image as a reference zero position, calculates the angle deviation of the other image relative to the reference zero position in the X direction and the Y direction, and converts the angle deviation into a linear parallelism deviation value. The method can realize non-contact, automatic and visual calibration in the whole process, and has the characteristics of high precision, high efficiency and high repeatability.

The present application relates to a kind of control system index evaluation method based on external fine measurement mode, first based on analog star body builds external fine measurement system, provides control system index evaluation system environment.The angle between the two pointing target angles before and after the theodolite calibration analog star body maneuver is recorded The total time of maneuver, verify attitude control maneuver speed index.Using autocollimator measure the angle change of the initial pointing position of load simulator and the return position after maneuver, calculate the angle difference between the two stable positions before and after maneuver, combined with system error and random error, verify the attitude control precision index of control system.Using dual-frequency laser interferometer and analog star body form stable interference measurement optical path, from the imaging start time to the imaging end time, the stability of the real-time data measured by dual-frequency laser interferometer Angle, verify the attitude control stability index of control system, realize the index evaluation of spacecraft control system through external fine measurement mode, reduce professional requirements, good universality.

This invention proposes a micro-nano arc-scale three-dimensional angle inspection device and method. The device comprises a ribbed worktable, a worktable shaft, a worktable support, a drive unit, a base, a plane mirror, an autocollimator, a drive module circuit board, a main control module circuit board, a display input module circuit board, and a turntable. The method uses the drive unit to induce a three-dimensional angle deflection in the worktable, employs two sets of autocollimation systems to measure this deflection, and establishes closed-loop feedback control for the worktable. Because the two angle measurement devices are orthogonally arranged, the three-dimensional angle deflection of the worktable can be measured. Using an autocollimation system as the angle measurement device greatly improves the angle measurement resolution. The combined drive method of a lead screw and piezoelectric ceramic further enhances the resolution of the worktable angle, thus solving the problems of small-angle inspection instruments being unable to perform three-dimensional angle inspection and having low angle resolution.

This invention belongs to the field of inertial measurement technology, specifically an inertial measurement unit and its linear-angular coupling motion calibration method. It includes constructing a non-contact inertial measurement unit linear-angular motion synchronous measurement system. Through a reference cubic prism, a three-dimensional laser vibrometer, a first dual-axis autocollimator, a second dual-axis autocollimator, and a data acquisition module, an attitude transformation matrix is ​​established from the cubic mirror coordinate system to the inertial measurement unit coordinate system. By synchronously triggering the inertial measurement unit, based on the outputs of a three-axis gyroscope and a three-axis accelerometer, the three-axis acceleration measured by the three-dimensional laser vibrometer in the inertial measurement unit coordinate system, and the three-axis angular velocity of the inertial measurement unit measured by the dual-axis autocollimator, the linear-angular coupling motion of the inertial measurement unit is calibrated. This invention avoids the influence of vibration on the accuracy of the measurement system and solves the problem of difficulty in dynamically tracking and monitoring the actual motion of the inertial measurement unit during vibration.

The application discloses a kind of laser power measuring devices based on light pressure, it is characterized in that, including: windproof cabin, first reflector, second reflector, lightweight double-sided reflector, autocollimator;Double-sided reflector is arranged in windproof cabin, one side surface is laser reflection surface, the other side surface is autocollimator reflection surface, autocollimator is opposite autocollimator reflection surface arrangement, for detecting whether double-sided reflector is stationary stable, first reflector, second reflector are arranged in laser reflection surface side;Windproof cabin is provided with incident window and exit window, first reflector is arranged in the inboard of incident window, second reflector is arranged in the inboard of exit window, the laser to be measured is incident to first reflector via incident window and is reflected to double-sided reflector, after being reflected by double-sided reflector, it is reflected by second reflector, and is emitted by exit window.This application greatly simplifies the traditional high-power laser power measuring device, improves measurement accuracy.

This invention claims protection for a MEMS gyroscope installation error calibration method based on a large-range autocollimator, comprising the following steps: Step 1, designing an autocollimator with an angle measurement range of ±9° using the reflection angle sensitivity modulation mechanism of a non-standard corner cone mirror (HCCCR); Step 2, establishing an evaluation benchmark for three-axis MEMS gyroscope measurement data by orthogonally combining two large-range autocollimators; Step 3, establishing a common data acquisition serial port between the autocollimator camera and the IMU host computer, and achieving dimensional unification and time synchronization between the autocollimator and MEMS gyroscope output readings by integrating the MEMS gyroscope angular rate measurement readings with time; Step 4, calibrating the MEMS gyroscope installation error coefficient using a traditional precision angular rate output turntable and conducting a comparative experiment. The experiment shows that the relative deviation of the IMU output after compensation by the two calibration methods is less than 0.3%.

This invention relates to the field of optical measurement technology, specifically to a device and method for detecting the beam-splitting surface parameters of waveguide sheets. The device includes an autocollimator and a measurement platform. The measurement platform is used to place and realize the translation and rotation of the waveguide sheet under test. The autocollimator is tilted above the measurement platform, with its center line coplanar with the rotation axis of the measurement platform, and its tilt angle relative to the rotation axis of the measurement platform is equal to the characteristic angle of the beam-splitting surface. The autocollimator is used to measure the angular parameters of each beam-splitting surface in the waveguide sheet under test during rotation or translation. In this invention, by placing the waveguide sheet under test on the measurement platform, the angular parameters of each beam-splitting surface of the waveguide sheet under test are measured using the autocollimator during the rotation or movement of the measurement platform. Therefore, this device can achieve non-destructive measurement of each beam-splitting surface of the waveguide sheet under test. This allows for the early rejection of defective products, improving production efficiency and reducing production costs.

The invention relates to a two-dimensional code type reticle determination method and a two-dimensional high-precision autocollimator based on a reticle and an image positioning algorithm thereof. The two-dimensional code pattern reticle determination method comprises the following steps: determining a unit type corresponding to each pixel position of a light-transmitting plate pattern according to a plurality of preset candidate light transmittances and a plurality of preset candidate random number generators; the unit types comprise a light-transmitting unit type and a light-proof unit type which are divided in advance; generating a candidate two-dimensional code light-transmitting plate pattern based on the unit type corresponding to each pixel position; determining the pattern of a target two-dimensional code light-transmitting plate based on a light spot displacement error result measured by the autocollimator in a simulation manner; wherein the autocollimator comprises a light-transmitting plate corresponding to the candidate two-dimensional code light-transmitting plate pattern. Therefore, the precision of angle measurement of the autocollimator can be improved.

The invention discloses a desktop type installation and adjustment platform for an extreme ultraviolet coaxial optical system and a method of the desktop type installation and adjustment platform, and belongs to the field of optical system precision installation and adjustment devices.The installation and adjustment platform comprises a photoelectric auto-collimator, an electric rotary table, an image acquisition module, a light source and a lens set adjustment mechanism, and the optical axis of the photoelectric auto-collimator coincides with the rotating shaft of the electric rotary table; the optical platform is fixed on the base and serves as a reference axis of the adjustment platform, the electric rotary table is fixed on the optical platform, the plane reflector is fixed on the surface of the electric rotary table, the photoelectric auto-collimator is arranged on one side of the plane reflector, and the image acquisition module is arranged between the plane reflector and the photoelectric auto-collimator. The traditional installation and adjustment scheme is limited in applicable optical system and lacks flexibility and integration, but the installation and adjustment platform is an independent system with complete functions, integrates optical path calibration, attitude regulation and control and image analysis units, does not need external auxiliary equipment, can be flexibly arranged according to the relation between the aperture and the object image of the optical system to be installed and adjusted, and is convenient to install and adjust. And rapid adaptive precision adjustment is realized.

The invention discloses an optical axis registration system and method for a large-scale optical system with limited installation and adjustment space. The system comprises a front optical machine system of which emergent light is parallel light and a rear optical machine system of which incident light is parallel light, the front optical machine system comprises a front optical machine system optical axis marking mirror, and the rear optical machine system comprises an electric control reflex mirror and a rear optical machine system optical axis marking mirror; an auxiliary optical calibration component is placed in a butt joint optical path of the front optical machine system and the rear optical machine system, and an autocollimator is further arranged, wherein the optical axis of a test light beam emitted by the autocollimator is perpendicular to the butt joint optical path of the front optical machine system and the rear optical machine system; the auxiliary light correction component comprises a first parallel plate, a first 45-degree reflector, a second 45-degree reflector and a second parallel plate. A first 45-degree reflecting mirror and a second 45-degree reflecting mirror which form an included angle of 90 degrees are arranged between the first parallel flat plate and the second parallel flat plate which are arranged in parallel. According to the invention, high-precision registration of the optical axes of two large-size and large-mass large optical systems can be realized under the condition that the installation and adjustment space is limited.

The invention relates to a high-information-entropy bar coding slit determination method and a high-precision autocollimator based on a slit and a stripe signal processing algorithm thereof, and the determination method comprises the steps: obtaining a plurality of initial light-transmitting slit patterns according to a preset bar coding mode; determining a model by utilizing a preset information entropy, and obtaining the uncertainty degree of each initial light-transmitting slit pattern, the redundancy degree of each initial light-transmitting slit pattern and the random degree of each initial light-transmitting slit pattern; based on the uncertainty degree, the redundancy degree and the random degree, obtaining information entropies corresponding to the initial light-transmitting slit styles; and taking the initial light-transmitting slit pattern corresponding to the maximum information entropy as a target light-transmitting slit pattern of the autocollimator. Thus, the image of the target light-transmitting slit output by the autocollimator can be processed through a cross-correlation-based template matching method and curved surface fitting, more accurate sub-pixel-level image positioning precision is obtained, and then the high-precision angle deflection amount is obtained in combination with an autocollimation measurement formula.

This invention relates to a method for rapid image finding during lens centering machining, comprising an image finding device. The device includes a machine tool spindle, with an autocollimator centering mechanism connected to the front end of the spindle via an optical alignment axis. A light tube extension tube passes through a shaft hole at the rear end of the spindle, and an autocollimator is connected to the rear end of the extension tube via a crosshair adjustment mechanism. The autocollimator is mounted on an adjustable tilting worktable via a spindle radial adjustment mechanism. The adjustable tilting worktable is mounted on the machine tool frame, and the autocollimator is driven by an electric mechanism to perform reciprocating translational adjustment along the axial direction. This rapid image finding method for lens centering machining involves pre-adjustment before lens processing. By adjusting the tilt of the adjustable tilting worktable to level the image and adjusting the autocollimator's spindle radially to make it coaxial with the machine tool spindle, multiple sets of spherical center images are quickly located along the machine tool spindle axis. Adjustment ensures the feedback crosshair image is displayed in the appropriate position. The structure is simple, operation is easy, and adjustment is convenient.

The embodiment of the invention discloses a relative inclination amount detection device which is used for measuring the relative inclination amount between a substrate and a chip and comprises an autocollimator located outside the interval between the chip and the substrate and an optical beam splitter located between the chip and the substrate. And a light source generator and an image sensor are arranged in the autocollimator. The light beam splitter divides a total detection light beam from the light source generator into a first split beam and a second split beam, the first split beam is projected to the first detection surface and is reflected to form a first reflected light beam, and the second split beam is projected to the second detection surface and is reflected to form a second reflected light beam. The image sensor converts the first reflected light beam into a first pattern, converts the second reflected light beam into a second pattern, and measures the relative inclination amount of the chip and the substrate through the position relation between the first pattern and the second pattern. According to the invention, non-contact detection of the relative inclination amount is realized, the influence of a mechanical motion error on a measurement result is significantly reduced, and the detection precision and reliability are greatly improved.

The application discloses a kind of main shaft rotation error measurement method and device based on optical principle.The main shaft rotation error measurement method is as follows: one, constructs coordinate system;Two, the axial error of main shaft is measured using light interference principle, and a beam is separated in the test light of axial error measurement and is shot to PSD, and radial error is obtained.The application sets up taper angle reflector at the end of main shaft, and the axial error of main shaft is measured using laser interference principle, the axial error measured by this mode is not influenced by radial error, the influence of inclination error can also be ignored, the complexity of axial error settlement is greatly reduced, and the detection precision is improved.In addition, while detecting axial and radial error, the application synchronously detects inclination error using annular reflector and laser autocollimator, and separates the measurement error caused by the inclination change of main shaft in radial error using the value of measured inclination error, and improves the detection accuracy of radial error.

This invention discloses a device and method for detecting the high-precision angle measurement accuracy of a two-dimensional scanning mechanism over a wide range. The detection device includes a two-dimensional scanning mechanism, a multi-tooth indexing stage, a photoelectric autocollimator, a marble platform, an angle acquisition circuit, a motion control box, a screw plate, horizontal adjustment shims, a photoelectric autocollimator mounting fixture, an angle acquisition computer, and a ground inspection unit. The multi-tooth indexing stage is placed on the marble platform. The photoelectric autocollimator is mounted on the multi-tooth indexing stage using the photoelectric autocollimator mounting fixture. Horizontal adjustment shims are used to adjust the multi-tooth indexing stage and the two-dimensional scanning mechanism to ensure parallelism, guaranteeing that the photoelectric autocollimator can receive the specular reflection value of the two-dimensional pointing mechanism. The detection method includes static calibration and dynamic calibration, with static calibration further including large-cycle angle accuracy calibration and small-cycle angle accuracy calibration measurements. This invention provides a third-party angle measurement device and method capable of achieving accuracy within 1 arcsecond, centered around the device under test.

The application claims a liquid refractive index high-precision measurement method based on optical autocollimation, and belongs to the field of optical measurement instruments, and the steps comprise: step 1, according to the angle measurement principle of a traditional autocollimator, a liquid loading reflector with a trapezoidal slope cavity structure characteristic is preliminarily designed, and the cavity is used to replace an external plane reflection target mirror for transmitting an angle value of a traditional autocollimator system, so that a solution refractive index measurement system in the cavity is formed; step 2, according to the original angle measurement performance of the autocollimator system, combined with the change range of the solution refractive index to be measured, a cavity reflector structure geometric parameter calculation and a design method derivation are performed; and step 3, according to the cavity geometric structure parameters, combined with an autocollimator angle measurement formula, a relationship formula between the autocollimation measurement value and the solution refractive index is established. The system structure is relatively simple and convenient to operate, and therefore is more conducive to the popularization and application in the solution refractive index measurement field.

The invention provides a wide-range and high-precision autocollimator method, the autocollimator with multi-beam different reflection angle sensitivity parameters is designed, the autocollimator can realize range grading measurement, a high-sensitivity mode is used for small-range measurement, a low-sensitivity mode is used for wide-range measurement, and the accuracy of the autocollimator is improved. Therefore, while the characteristic of high precision of a traditional photoelectric autocollimator is maintained, the measuring range is expanded, and high-precision measurement after the measuring range is expanded is ensured.

The application provides an optical-electric device autocollimator auxiliary assembling and adjusting device, and relates to the technical field of autocollimator assembling and adjusting. The device comprises a blocking sheet, an assembling and adjusting component, a laser generating component and a locking component. The blocking sheet is fixedly installed on an autocollimator objective tube to provide an installation reference position. The assembling and adjusting component is installed on the autocollimator objective tube and close to the blocking sheet. The assembling and adjusting component is located on the side of the blocking sheet close to a mirror. The laser generating component is arranged in the assembling and adjusting component to generate a central visible light beam and a concentric arc visible light beam. The locking component is arranged on the top of the assembling and adjusting component to lock and release the laser generating component. The assembling and adjusting component and the locking component are arranged to automatically change the position of the laser generating component without manual placement, ensure the accuracy of the position of the laser generating component and facilitate subsequent measurement operation of the autocollimator.

This invention belongs to the field of optical assembly and testing technology, specifically relating to a beam parallelism testing method. Using an autocollimator and a plane mirror, it can quickly and accurately determine the parallelism of the beam emitted from a large-aperture collimator. The required equipment is simple, the time is short, and the accuracy is high.

The invention relates to a virtual image distance detection method, which comprises the following steps of: adjusting the focusing distance of a lens to f1, and arranging an internal focusing autocollimator on one side, deviating from the lens, of a light-transmitting plate to obtain a first linear fitting relationship VID = g1 (d) between VID and d; adjusting the focusing distance of the lens to f2, and obtaining a second linear fitting relation VID = g2 (d) between the VID and d; adjusting the focusing distance of the lens to f2, and obtaining a corresponding parallax interval d2 on the imaging unit; if g2 (d2) is greater than or equal to 1 / L0, the virtual image distance VID of the device to be measured is equal to g2 (d2); if g2 (d2) is smaller than 1 / L0, the focusing distance of the lens is adjusted to f1, the corresponding parallax distance d1 on the imaging unit is obtained, and the virtual image distance VID of the device to be measured is equal to g1 (d1).

The invention relates to the technical field of axis collimation, in particular to a common-optical-axis internal focusing optical detector. Comprising a light source device, the light source device comprises an autocollimator, and an optical right angle device is arranged in front of the autocollimator; the internal focusing device comprises a fixing frame arranged in front of the optical right angle device, a first gear is arranged on the fixing frame, the first gear is connected with a second gear, the second gear is connected with a rotating shaft, a third gear is arranged on the rotating shaft, the third gear is connected with a fourth gear, and the fourth gear is connected with a second gear. The first gear is connected with a second cylinder, the fourth gear is connected with a first cylinder, a curve rail is arranged between the first cylinder and the second cylinder, the curve rail is of a through groove structure, and a supporting rod is arranged in the curve rail; the transmission device comprises a gear box, and has the advantages that not only can the collimation of shaft parts be realized, but also the real-time zoom inspection is realized through an internal focusing mode.

This invention discloses a comprehensive information processing board for angle calibration of an optoelectronic tracking device, comprising: an information acquisition module that acquires two-dimensional coordinate data of the laser spot on the target surface through a laser information acquisition camera; a data communication module with a multi-interface design, connecting to the camera, inertial measurement unit, autocollimator, optoelectronic tracking device, and power supply unit respectively, to realize real-time acquisition and transmission of multi-source data; a synchronization module that ensures system time synchronization based on a high-precision clock source; a data calculation module that constructs a three-dimensional spatial pointing model by fusing laser coordinates, inertial navigation attitude, autocollimation optical axis data, and optoelectronic tracking device miss distance information, and accurately calculates the azimuth / pitch angle deviation between the multispectral optical axis of the optoelectronic tracking device and the reference axis; and a power monitoring module equipped with dual-redundant detection circuits to monitor the power supply status in real time. This invention effectively improves the optical axis calibration accuracy and system reliability of the optoelectronic tracking device through multi-source data fusion and high-precision calculation.

The application discloses a method for measuring super-large curvature radius, and relates to the field of optical measurement, which comprises the following steps: placing two autocollimators in parallel on one side of an optical element to be measured, calibrating the parallel state by using optical flat crystals; then placing the autocollimators near the curved surface to be measured, synchronously adjusting the pitch angle and position to make the light spots on the same CCD axis; calculating the centroid offset of the reflected light spots, and reducing the noise influence by combining with a denoising algorithm; finally, calculating the curvature radius according to the distance between the two autocollimators and the centroid offset distance of the light spots; the method is compatible with concave-convex mirror measurement, does not need to replace equipment or adjust the optical path, has a simple optical path structure, and the algorithm is easy to realize; the method does not depend on a high-precision optical platform, can be applied in an optical workshop, compared with the traditional autocollimation method, does not need a large-stroke displacement table, and can realize the measurement of the super-large curvature radius only by fine adjustment, so that the operation is simplified, the repeatability is good, and the precision is high.