Method for using photoelectric device to determine complete rotation arrival and rotating angle of turntable in north seeker
A technology of optoelectronic device and angle of rotation, applied in the direction of using optical devices, measuring devices, instruments, etc., can solve the problems of high cost and low competitiveness, and achieve the effect of low cost, high precision and cost reduction
Active Publication Date: 2014-12-10
SHAANXI BAOCHENG AVIATION INSTR
View PDF3 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
When these technical measures are used in low-to-medium precision gyro north finders, their competitiveness is reduced due to the high cost
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0030] Attached below Figure 1-13 An embodiment of the present invention is described.
[0031] A method of using a photoelectric device to determine the arrival and rotation angle of a turntable in a north finder, the steps are as follows:
[0032] 1) Install a dual-channel photoelectric sensor 1 and a rotatable turntable 2 on the north finder box 9, install a grating 3 on the turntable 2, and there is only one light-passing slot 4 on the grating 3; the groove wall of the light-passing slot 4 is extended The line extends to the center of the raster 3;
[0033] 2) After the turntable 2 starts to rotate, when the light-passing slot 4 passes through the U-shaped detection slot of the photoelectric sensor 1, the dual-channel photoelectric sensor 1 generates electrical signals for the light-on path and the light-off path to identify and judge the arrival of the full rotation of the inner turntable;
[0034] 3) Using the set time for the turntable 2 to rotate a full circle, subd...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
Provided is a method for using a photoelectric device to determine complete rotation arrival and a rotating angle of a turntable of a north seeker. The method includes that a two-way photoelectric sensor and the rotatable turntable are mounted on a north seeker box, and an optical grating is mounted on the turntable and provided with only one light through groove; after the turntable starts to rotate, when the light through groove penetrates through a detection groove of the photoelectric sensor, the two-way photoelectric sensor generates connection light way and disconnection light way electric signals to recognize and judge complete rotation arrival of the turntable; set time of the turntable to rotate a circle is utilized to subdivide into multiple equal time periods, and actual angle corresponding relationship of each time period of the turntable is calculated; and simultaneously, the time periods are used as sampling time intervals of gyro sampling during north seeking, and angles obtained by calculating not measuring are used during north seeking calculating to complete north seeking calculation. The method for using the photoelectric device to determine complete rotation arrival and the rotating angle of the turntable of the north seeker is low in cost, high in detection accuracy, capable of detecting rotating direction of the turntable and solving the problem of measuring current rotating angle and is suitable for north seeker products with slightly lower accuracy.
Description
technical field [0001] The invention belongs to the technical field of inertial navigation equipment, and in particular relates to a method for determining the full rotation arrival and rotation angle of a turntable in a north finder by using a photoelectric device. Background technique [0002] In the medium-high precision gyro north-finder using continuous rotation error modulation, angle-measuring devices such as two-speed rotary transformers or precision gratings are usually used to measure the precise angular position of the turntable rotation during north-seeking work. When these technical measures are used in low- and medium-precision gyro north finders, their competitiveness is reduced due to their high cost. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method for determining the full-rotation arrival and rotation angle of the turntable in the north-finder by using a photoelectric device, and a detec...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/26G01C17/00
Inventor 赵治伟陈磊江许卫东黄凯赵红敏刘剑锋郑群英
Owner SHAANXI BAOCHENG AVIATION INSTR