Binocular type laser distance measuring and speed measuring instrument
A technology of binoculars and laser ranging, used in instruments, measuring devices, radio wave measuring systems, etc., can solve the problems of large speed measurement error and speed measurement angle limitation, and achieve the effect of small energy loss, complete functions and good observation.
Inactive Publication Date: 2008-05-14
南阳孚达光电技术股份有限公司
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Both of the above two speedometers have limitations on the angle of speed measurement. The larger the angle between the target movement direction and the optical path axis of the speedometer, the greater the speed measurement error.
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[0018] The structural features of the present invention will be described in detail in conjunction with the accompanying drawings and embodiments, and the characteristics and advantages of the present invention will be more clear through the further description below.
[0019] see figure 1 , figure 2 , Figure 5 , the first embodiment of the binoculars-type laser ranging speed measuring instrument of the present invention, the structure includes: binoculars body 10, binoculars optical path 20, system controller 30, light emitting circuit 40, light emitting circuit 50 , Two sets of time counters 60, light receiving circuit 70, display 80, power supply 90.
[0020] Wherein, described binoculars 10 are existing hand-held binoculars for observation (see figure 1 ), in addition to being used for observation, instead of observing the optical path 20 (see Figure 5 ) is also used to set the system controller, two sets of light emitting circuits, light receiving circuits, two set...
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The invention relates to a binocular-type laser-used distance and speed measurer, mainly including a binocular, a system controller, two sets of transmitting circuits, an optical receiving circuit and two sets of time counters, a liquid crystal display screen and a power supply, applying time method and independent and time-sharing structure as well as system software to transmit high frequency laser beam to the target, and obtaining the distance and moving speed of the target from the time between transmission and reception of reflected echo signal and the time difference between light beam transmission twice of the target in two positions. It is applied to earth observation in multiple fields, and integrated with observing, and distance and speed measuring functions, especially suitable for the traffic policeman to measure the speed of vehicle on the road, and for frontier defence and customs to locate the targets in the region where the obstacles are numerous, and it has the advantages of convenience to carry, increased observation indexes, low requirements on measuring environment and conditions, extremely low losses, etc.
Description
Technical field: [0001] The invention belongs to the technical field of optical earth observation, and relates to a binoculars-type laser ranging speed measuring instrument. Background technique: [0002] There are two kinds of ranging principles of existing laser range finders: phase method and time method. The phase method uses a continuously emitting laser to modulate the amplitude of the laser beam and measure the phase delay generated by the modulated light going back and forth to the measuring line once, and then according to The wavelength of the modulated light is converted to the distance represented by this phase delay. That is, the indirect method is used to measure the time required for the light to travel through the survey line. The time method uses a timer to measure the time required for a round trip between two points A and B when the speed of light c propagates in the air. If the time is t, then the distance between A and B is D, and D=ct / 2. [0003] Beca...
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IPC IPC(8): G01S17/02
Inventor 崔农
Owner 南阳孚达光电技术股份有限公司