12 results about "Laser transmitter" patented technology

The invention belongs to the technical field of measurement and calibration, and discloses a laser ranging calibration device. The laser ranging calibration device comprises an experiment table, a laser emitter, a laser receiver, a data processor and a reflector controller are arranged on the experiment table, and the data processor is used for calculating the time difference between the moment when the laser emitter emits a laser signal and the moment when the laser receiver receives the reflected laser signal, calculating measurement distances and calibration values and then saving the corresponding calibration values. The invention further discloses a calibration method using the laser ranging calibration device. By means of the laser ranging calibration device, according to different reflectivities and different incidence angles, corresponding calibration values can be calculated and then saved, multiple groups of calibration data can be obtained, and in actual measurement, all thesaved data can be used for calibration.

A procedure for calibrating a vehicle onboard sensor 202 by facilitating the placement of a calibration fixture 110 on a floor relative to a stationary vehicle 100 using a laser emitter 102 secured to a front steerable wheel 104 of the vehicle on the same lateral side as the vehicle onboard sensor. A beam projection axis X of the laser projector is aligned at a known orientation relative to a geometric characteristic of the vehicle 100, such that the beam projection axis X is directed over a placement location P of the calibration fixture on the floor, either inherently or by guided steering of the supporting steerable wheel. A distance between the calibration fixture 110 and a reference point associated with the vehicle 100 is measured, and a current position of the calibration fixture on the floor along the beam projection axis X is adjusted as required to position the calibration fixture for calibration of the vehicle sensor 202 at a selected distance from the reference point along the beam projection axis X,

A stable optical reference oscillator (SORO) consisting of conventional low power CW source of coherent optical radiation having a relatively narrow bandwidth is mixed, i.e., beat against a sample of an incoherent laser transmit signal and the phase of the resultant signal is recorded. This is then compared to the phase of an ideal pulse of a perfect laser transmitter which was previously generated and recorded. The result is a phase correction term which is used in the subsequent signal processing of the received signals to realign the received laser pulses so that they are phase coherent.

A method of multiplexing optical signals in a node of an optical network including as inputs a plurality of electrical signals, a plurality of laser transmitters, and as outputs a plurality of optical fibers, (a) generating clock pulses as a first clock frequency; (b) dividing the clock pulses respectively into a number of parallel trigger outputs; (c) sampling the electrical signals respectively by triggering on the parallel trigger outputs; (d) converting the sampled electrical signals to sampled optical signals by modulating respectively the laser transmitters with the sampled electrical signals and outputting respectively the sampled optical signals on the optical fibers; (e) combining the sampled optical signals onto a single optical fiber.

The invention discloses a 3D printer with a scanning function. The 3D printer comprises a scanning box body, an infrared camera device and infrared laser transmitters, wherein a door body is hinged toone side of the front end of the scanning box body; a panel is arranged on the other side of the front end of the scanning box body; a strong magnet is arranged at the connection part of the door body and the panel; a heat dissipation window and a charge interface are arranged at the back end of the scanning box body; the charge interface is arranged at the lower part of the heat dissipation window; heat dissipation holes are uniformly formed in the heat dissipation window; a rotating platform is arranged in the middle of the inner bottom of the scanning box body; the infrared camera device is arranged in the middle of the upper part in the scanning box body; and the infrared laser transmitters are arranged on the two sides of the infrared camera device. The 3D printer is simple in structure, has the characteristic that price is low under the precondition that a basic scanning function is achieved, and has a wide application market and quite good popularization value.

The invention relates to a template perpendicularity and lateral curvature detection tool and a use method thereof. The detection tool comprises a first detection ruler, a second detection ruler, a bubble level, a laser range finder, a laser transmitter and a laser transmitter receiving disc, wherein the first detection ruler and the second detection ruler have the same structure; the two bubble levels and the two laser range finders are respectively fixed on the first detection ruler and the second detection ruler; and the laser emitter and the laser emitter receiving disc are respectively and correspondingly arranged on the first detection ruler and the second detection ruler. The detection tool has the advantages that during detection, the length of the vertical rod can be adjusted according to the height of a wall column formwork to be detected, climbing operation of an operator is avoided, the working safety of the detector is improved, and through cooperation of the first detection ruler and the second detection ruler, perpendicularity detection and curvature detection of the template can be carried out at the same time, the working process is simplified, and then the workingefficiency of operators is improved.

The invention discloses a multi-technical-parameter matching type laser shock molding die in the technical field of advanced manufacture. The multi-technical-parameter matching type laser shock molding die comprises a working table, wherein a computer is arranged at the left side of the top of the working table; an inner cavity of a fixed table is provided with a laser transmitter; a moving table is arranged at the top of a base; the right side wall of the moving table is provided with a fine adjusting gear; the left side of a bottom plate is provided with a die groove; the bottom of the die groove is provided with a base plate; ventilation pads are uniformly arranged between the bottom plate and the base plate; the top of the die groove is provided with a pressing plate; the bottom of the pressing plate is provided with a constraining layer; the two ends of the top of the pressing plate are each provided with a fastening screw; and through holes are formed in the outer wall of the bottom plate. The air discharging problem of a molding cavity is solved; gaps exist between through holes in the base plate and projections on the bottom plate, so that air discharging is very uniform and smooth, and better molding is facilitated; and the die is convenient to mount and disassemble, and the mounting and disassembling efficiency is increased.

The invention relates to a variable-angle range finder. The variable-angle range finder comprises a measuring support rod, a first laser emitter, a second laser emitter, a double-axis tilt angle sensor, a controller and a display device, wherein a fixed block fixedly sleeves one end of the measuring support rod, and the first laser emitter is rotatably connected with the fixed block through a first rotating mechanism; a sliding block slidably sleeves a rod body of the measuring support rod, the second laser emitter is rotatably connected with the sliding block through a second rotating mechanism, and the double-axis tilt angle sensor is fixedly connected with the second laser emitter; an input end of the controller is electrically connected with the double-axis tilt angle sensor and is used for receiving an electric signal of an angle acquired by the double-axis tilt angle sensor; and the display device is electrically connected with an output end of the controller.

The invention belongs to the technical field of steel processing accessory devices and particularly relates to an automobile edging mechanism which can position steel conveniently to improve the usingreliability and comprises a rack, four groups of stand columns, a mounting plate, a top plate and a hydraulic cylinder, wherein limiting holes penetrating through up and down are formed in the left front end, the right front end, the left rear end and the right rear end of the mounting plate; linear bearings are mounted in the four groups of limiting holes; the bottom output end of the hydrauliccylinder penetrates through the top plate from the top end of the top plate and is connected with the middle of the top end of the mounting plate; an upper die is arranged at the bottom end of the mounting plate; a lower die matched with the upper die is arranged at the top end of the rack; the automobile edging mechanism further comprises a base, a fixed plate, a positioning plate, two groups ofthreaded pipes, two groups of threaded rods, two groups of ball bearing, a mounting frame and a linear laser emitter; two groups of transverse rails are arranged on the rear side of the top end of therack; sliding blocks are mounted on the two groups of rails in a sliding manner; the linear laser emitter projects a transverse laser ray on the lower die; and the transverse laser ray is positionedright below the upper die.

The invention relates to a CTS, CTP and die-cutting sample-making three-in-one plate-making machine which comprises a camera bellows and a laser combiner arranged in the camera bellows. A working table top used for mounting a plate is arranged in the camera bellows. Two guide rails are arranged on the two opposite sides inside the camera bellows, a cross beam is slidably arranged between the two guide rails, and the laser combiner is slidably arranged on the cross beam. The laser combiner comprises a laser transmitter and a laser head assembly rotationally arranged at the bottom of the laser transmitter. A laser beam transmitted by the laser head assembly is irradiated on the plate, and the laser head assembly comprises at least one or more of a CTS laser head, a CTP laser head and a die-cutting laser head. According to the CTS, CTP and die-cutting sample-making three-in-one plate-making machine, the working efficiency and universality of plate-making printing are improved, and the production cost is reduced.