Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Dual-field variable-focus 3D measurement system

A three-dimensional measurement, dual field of view technology, applied in measurement devices, instruments, optical devices, etc., can solve the problem that a single system is difficult to take into account the imaging accuracy and imaging field of view, etc., to achieve continuous variable angle dynamic three-dimensional vision imaging, The effect of fast and high-precision extraction and improved measurement accuracy

Inactive Publication Date: 2015-07-29
TONGJI UNIV
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the system adopts a dual-focal-length fixed-focus scheme, and it is difficult for a single system to take into account both imaging accuracy and imaging field of view.

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Dual-field variable-focus 3D measurement system
  • Dual-field variable-focus 3D measurement system
  • Dual-field variable-focus 3D measurement system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Example 1: see first Figure 1-Figure 5 shown. figure 1 It is a scheme diagram of the dual-view zoom three-dimensional measurement system of the present invention. figure 2 It is a three-dimensional rendering of the dual-field variable-focus three-dimensional measuring device of the present invention. image 3 It is a three-dimensional rendering of the primary and secondary mirror imaging measurement system of the present invention. Figure 4 It is a three-dimensional rendering of the two-dimensional tracking mirror device of the present invention. Figure 5 It is a block diagram of the adaptive control system of the present invention. Depend on Figure 1-Figure 5 It can be seen that the dual-field zoom three-dimensional measurement system of the present invention is composed of a primary and secondary mirror imaging measurement system 01, a two-dimensional tracking and rotating mirror device 02, and an adaptive control system. in:

[0039] The primary and secon...

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

No PUM Login to View More

Abstract

The invention relates to a double-field variable-focus three-dimensional measurement system. The system comprises a primary-secondary mirror imaging measuring system, a two-dimensional tracking rotating-mirror device and an adaptive control system. The primary-secondary mirror imaging measuring system is composed of a telephoto subsystem, a short-focus subsystem and a launching light source. The telephoto is composed of a main lens, a first spectroscope, a second spectroscope and a detector. The short-focus system is composed of the main lens, the first spectroscope, the second spectroscope and the detector. The two-dimensional tracking rotating-mirror device is composed of a reflector, a electric rotating motor, a regulating handle, an upper half shaft, a lower half shaft and a horizontal shaft. The adaptive control system is composed of a computer, an input and output (I / O) control circuit, an electromotor and a signal processing and controlling circuit. The system has the advantages of being tight in arrangement, high in measuring efficiency, convenient to measure and is suitable for the three-dimensional measuring of moving and static objects.

Description

technical field [0001] The invention relates to a three-dimensional measuring device, in particular to a dual-field variable-focus three-dimensional measuring system. Background technique [0002] Commonly used object 3D data acquisition methods can be divided into two categories: contact and non-contact. The advantages of the contact measurement method are high measurement accuracy, good repeatability, and strong adaptability, but it cannot perform precise measurements on soft objects, and the measurement speed is slow, the measurement data density is low, and the measurement process requires manual intervention. These shortcomings limit it. The application of the non-contact measurement method is to obtain the three-dimensional information of the object through some physical phenomenon that interacts with the surface of the object, such as sound, light, electromagnetic, etc., among which the modern three-dimensional shape measurement method developed by applying the optica...

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
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/24
Inventor 李安虎李志忠
Owner TONGJI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com