A dual optical path laser scanning diameter measurement system and method based on three standard rod method
A laser scanning and standard bar technology, applied in the field of measurement and control, can solve the problem of low measurement accuracy, and achieve the effects of expanding the measurement range, improving the measurement accuracy, and strong anti-interference ability.
Active Publication Date: 2020-03-24
HUBEI UNIV OF TECH
View PDF1 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The measurement upper limit of the existing dual optical path laser scanning caliper system is not affected by the diameter of the plano-convex lens, which solves the problem of using a small lens to measure large diameters, but ignores the influence of the synchronous motor speed, resulting in low measurement accuracy
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
[0029] In order to facilitate those of ordinary skill in the art to understand and implement the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the implementation examples described here are only used to illustrate and explain the present invention, and are not intended to limit this invention.
[0030] please see figure 1 , a dual optical path laser scanning caliper system based on the three standard rod method provided by the present invention is composed of a laser emitting part, a detecting part and a light receiving part; the laser emitting part is composed of a laser and a scanning rotating mirror; the scanning rotating mirror is composed of an octagonal prism and a motor; the detection part is composed of a first lens, a second lens, a third lens, a half-reflective prism and a full-reflection prism; the light-receiving part is composed of a fir...
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
The invention discloses a tri-standard-rod-method-based double-light-path laser scanning calibration system and method. The system is composed of a laser emitting part, a detecting part and a light receiving part. The laser emitting part is composed of a laser device and a scanning rotating mirror. The detecting part consists of a first lens, a second lens, a third lens, a semi-transparent semi-reflective prism, and a total-reflective prism. The light receiving part consists of a first photodiode, a second photodiode, and a data processing unit. Light emitted by the laser device passes throughthe scanning rotating mirror to generate a scanning beam; the firs lens processes the scanning beam into a parallel beam; the semi-transparent semi-reflective prism and the total-reflective prism carry out process to form two-path parallel beams; high-speed scanning is carried out on a standard rod and a tested workpiece in a measurement region; with the two lenses, the parallel beams are focusedto two photodiodes; and optical signals obtained by the two photodiodes are converted into electrical signals and the electrical signals are transmitted to a data processing unit to display the measured diameter. Therefore, the influences caused by the environment and accidental errors are reduced.
Description
technical field [0001] The invention belongs to the technical field of measurement and control, and relates to a laser scanning diameter measuring system and method, in particular to a dual optical path laser scanning diameter measuring system and method based on a three-standard rod method. Background technique [0002] There are two main categories of dimension measurement methods: contact measurement methods and non-contact measurement methods. Typical contact measurement methods, such as vernier calipers, micrometers, and three-coordinate measuring machines, generally have a measurement accuracy of a few microns. However, due to their slow measurement speed, they will cause wear to the workpiece and affect the measurement accuracy, so they cannot be measured in real time. Non-contact measurement has the characteristics of high speed and high precision, and gradually spreads in various high-precision detection fields. Among them, laser caliper measurement is a non-contact...
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): G01B11/08
CPCG01B11/08
Inventor 付波毛嫚嫚赵熙临权轶何莉陈卓刘济源王子鹏徐光辉
Owner HUBEI UNIV OF TECH