影像测量仪技术基础之基本结构

影像测量仪技术基础的基本结构

  影像测量仪一般由机械主体、标尺系统、影像检测系统、驱动控制系统和影像测量软件组成，如下图所示：

  1.机械主题⒉。 标尺系统 3. 驱动控制系统 4. 图像检测系统 5. 图像测量软件

  1.机械体

  机械主体是影像测量仪的主要部分。 它由结构型式、导轨和传动机构组成。 为了平衡Z轴的重量，有时需要增加一个平衡组件。 结构型式是影像测量仪的主要组成部分，一般由工作台、立柱或桥架、外壳等组成。 测量仪器的工作台在导轨上运动，导轨一般采用滚动导轨、滑动导轨或气浮导轨。 传动机构一般包括丝杠、光杆、齿形带、齿条和小齿轮等不同形式。

 2.标尺系统

  尺子。 系统是决定影像测量仪精度的重要组成部分。 影像测量仪的标尺。 该系统一般使用光栅尺。 它是一种位移传感器，有些测量仪器还带有数显电气装置。

  3.图像检测系统

  图像检测系统是图像测量仪的关键部分。 它不同于普通的三坐标测量机。 该系统安装在机械主体的多个轴上，利用Z轴的上下运动来调整高度位置。 采集到的图像数据的质量直接影响图像测量仪的测量精度和重复性。 因此，图像检测系统的作用不容忽视。

  图像检测系统一般由照明装置、镜头、图像传感器、图像采集卡等组成。 影像测量仪一般提供三种照明方式：面光、轮廓光和同轴光。 影像测量仪使用的镜头通常是单目显微镜镜头，成像倍率可以通过控制系统进行调节。 图像传感器一般采用CCD（Charge Coupled Device），采集图像并将其转换为电子信号，传输到图像采集卡进行进一步处理。

  4.驱动控制系统

  驱动控制系统是连接视频测量仪硬件和软件的纽带，是驱动和控制视频测量仪运动的部分。 尤其是在自动影像测量仪中，包括电子、机械和光学元件等都需要使用电子控制。 驱动控制系统一般由驱动电机和一些控制板组成。 驱动电机提供动力，控制板负责发送控制指令。 驱动控制系统的主要功能包括：机器XYZ轴的运动控制，读取XYZ轴的坐标，控制镜头的变焦，调节光源的开关和亮度，监控机器的状态。 实时图像测量仪。

  5.图像测量软件

  图像测量软件可以根据输入的工件图像测量各种几何量。 不同厂家的测量软件开发思路不同，导致使用过程和功能不同。 但这些测量软件应该能够满足基本的测量功能，如几何测量、图像处理分析、自动编程控制、机器控制等，以及统计分析等高级功能。 此外，测量软件还应该能够输入和输出绘图数据，输出测量报告。 此外，一些厂商还可以根据客户的需求提供特定的功能。 例如，天准Vispec影像测量软件可提供图纸比对、全景扫描等功能，以及专为计量行业开发的测试筛自动校准、半径模板自动校准等功能。 功能。

  影像测量仪技术基础的基本结构信息由TTC影像测量仪提供。英斯特力仪器是一家集研发、生产及销售于一体的 影像测量仪，拉力试验机, 硬度计 ,探伤仪, 粗糙度仪, 测厚仪, 金相设备厂家, 致力于为客户提供更好的检测仪器。

Basic structure of image measuring instrument technology foundation  

Image measuring instrument is generally composed of mechanical theme, scale system, image detection system, drive control system and image measurement software, as shown below:  

1. Mechanical Subject ⒉. Scale system 3. Drive control system 4. Image detection system 5.  Image measurement software  

1.  mechanical  

Mechanical main body is the main part of the image measuring instrument, composed of structure, guide rail and transmission mechanism, in order to balance the weight of the Z axis sometimes also need to add balance parts.  The structure is the main part of the image measuring instrument, which is generally composed of workbench, column or bridge frame and shell.  The table of the measuring instrument moves on the guide rail, which generally adopts rolling guide rail, sliding guide rail or air float guide rail.  Transmission mechanism generally includes lead screw, light bar, tooth belt, rack and pinion and other different forms.  

2. Scale system  

The system is an important part to determine the accuracy of image measuring instrument.  The scale of an image measuring instrument.  System - generally using grating ruler.  For displacement sensor, some measuring instrument also has digital display electrical device.  

3. Image detection system  

Image detection system is an image measuring instrument area.  Different from the key part of the ordinary coordinate measuring machine.  The system is mounted on several axes of the main body of the machine to adjust the height position by moving z-axis up and down.  The acquisition of image data directly affects the measurement accuracy and repeatability of the image measuring instrument.  Therefore, the role of image detection system can not be ignored.  

The image detection system generally consists of a lighting device, a leneserrata image sensor and an image acquisition card.  Image measuring instrument - provides surface light, contour light, coaxial light three illumination modes.  The lens used in an image measuring instrument is usually a single-purpose microscopic lens that can be controlled to adjust the magnification of the image.  CCD (Charge Coupled Device) is generally used as the image sensor. It collects images and converts them into electronic signals, which are sent to the image acquisition card for further processing.  

4.  Drive control system  

The driving control system is the link between the hardware and software of the image measuring instrument, and it is the part that pushes and controls the motion of the image measuring instrument.  Especially in the automatic image measuring instrument, including electronic, mechanical and optical components need to use electronic control.  The drive control system is generally composed of a drive motor and some control board cards. The drive motor provides power, and the control board cards are responsible for sending control commands.  The main functions of the drive control system include: the motion control of machine XYZ axis, the coordinate reading of XYZ axis, the multiplication control of the lens, the switch and brightness adjustment of the light source, the real-time monitoring of the state of the image measuring instrument, etc.  

5.  Image measurement software  

Image measurement software can measure various geometric quantities according to the input workpiece image.  Different manufacturers of measurement software development ideas are different, resulting in its use process, function are also different.  But these measurement software should be able to meet the basic measurement functions, such as geometric measurement, image processing and analysis, automatic programming control, machine control, and advanced functions such as statistical analysis.  In addition, the measurement software should also be able to input and output drawing data, output measurement reports.  In addition, some manufacturers can also provide specific functions according to customer needs, such as celestial alignment Vispec image measurement software can provide drawing comparison, panoramic scanning and other functions, as well as test screen automatic calibration, radius sample automatic calibration and other functions specially developed for the measurement industry.  

The basic structure information of image measuring instrument technology foundation is provided,TTC image measuring instrument preferred.