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A measuring device and measuring method for the length of a corner cube prism and a standard rod
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A corner cube prism and length measurement technology, which is applied to measurement devices, optical devices, geometric characteristics/aberration measurement, etc. Achieve accurate measurement results
Active Publication Date: 2021-08-03
BEIJING AEROSPACE INST FOR METROLOGY & MEASUREMENT TECH +1
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[0007] The object of the present invention is to provide a kind of corner cube length standard rod length measuring device and its measuring method, in order to solve the problem that it is difficult to accurately obtain the optical center distance of two corner cube prisms on the corner cube standard rod by using a coordinate measuring machine at present
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Embodiment 1
[0048] see Figure 1-2 , the present embodiment provides a corner cube length standard rod length measuring device, including a base 6, an optical aiming device 16, a calibration device, an orientation sliding device and a distance measuring device;
[0049] The directional sliding device is slidably installed on the base 6;
[0050] Described calibration device is installed on the described orientation sliding device, and the corner cube length standard rod 1 of pre-calibration is placed on described calibration device, wherein, calibration device is used to realize that the corner cube length standard rod 1 along described orientation Orientation calibration of the sliding direction of the sliding device;
[0051] Described optical aiming device 16 is installed on the described base 6, and is relatively arranged on one side of orientation sliding device, and described optical aiming device 16 is used for aiming at the optical center of the corner cube at the two ends of the...
Embodiment 2
[0072] The present embodiment is based on embodiment 1, specifically provides a kind of measuring method of corner cube length standard rod length measuring device, comprising:
[0073] S1, placing the corner cube length standard rod 1 in the "V" bayonet of the supporting block 5, and adjusting the calibration device so that the central axis of the corner cube length standard rod 1 is parallel to the sliding direction of the directional slide device;
[0074] S2, use the optical sighting device 16 to aim at the optical center of the corner cube at the front end of the corner cube length standard rod 1, and read the measurement data on the laser interference distance measuring device 17 for the first time (you can also place it on the laser interference distance measuring device 17 The reading is cleared), record the measurement data as L 0 ;
[0075] S3, the optical aiming device 16 remains stationary, moves the directional sliding device until the optical aiming device 16 is...
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Abstract
The invention relates to the technical field of precision engineering measurement, and provides a corner cube prism length standard rod length measuring device and a measuring method thereof. The length measuring device includes a base, an optical aiming device, a calibration device, an orientation sliding device and a distance measuring device ; Slide and install the directional sliding device on the base; the calibration device is installed on the directional sliding device, and a pre-calibrated corner cube length standard rod is placed on the calibration device; the optical sighting device is installed on the base, and is relatively arranged on the directional sliding device One side of the device; the distance measuring device is used to detect the sliding distance of the directional sliding device; the present invention has simple structure and convenient operation, and realizes the optical center of the corner cube at both ends of the diagonal cube length standard rod by adopting the indirect distance measurement method Accurate measurement of spacing.
Description
technical field [0001] The invention relates to the technical field of precision engineering measurement, in particular to a measuring device for measuring the length of a corner cube prism and a measuring method thereof. Background technique [0002] In the field of precision engineering measurement technology, the photogrammetrysystem, as a representative of high-precision large-scale measuring instruments, plays an important role in the field of geometric measurement. The accuracy of the photogrammetrysystem needs to be calibrated with the length standard rod of the corner cube, and the calibration accuracy of the length standard rod of the corner cube is an important factor affecting the calibration accuracy of the photogrammetrysystem. [0003] As known, the corner cube is a tetrahedral structure, and the bottom surface of the corner cube is an equilateral triangle, and the other three sides of the corner cube are three mutually perpendicular isosceles right triangle...
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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/02G01M11/02
CPCG01B11/02G01M11/0242
Inventor 缪寅宵宋金城刘柯郭力振朱浩
Owner BEIJING AEROSPACE INST FOR METROLOGY & MEASUREMENT TECH
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