(1）构成
影像测量仪是一种由高解析度CCD彩色镜头、连续变倍物镜、彩色显示器、视频十字线显示器、精密光栅尺、多功能数据处理器、数据测量软件与高精密工作台结构组成的高精度光学影像测量仪器。
加工定制:否
分辨率:0.001 (mm)
测量行程:250*150*200 ( mm)
品牌:英斯特力
型号:VME-4030
放大倍率:光学0.7-4.5X
影像28-180X
操作方式:手动
测量精度:(3+L/200)um
外形尺寸（长*宽*高):1000*650*1650 (mm)
JVB250的规格参数:
①测量范围:X坐标:250mmY坐标:150mm
调焦行程:7坐标:200mm
x、Y、坐标分辨率:0.0005mm
③仪器准确度:(3+L/200) um其中L为被测长度，单位mmCCD摄像机:1/3”彩色摄像机，象素数:795(H)×596(V)
⑤物镜放大率:0.7~4.5×连续变倍，影像放大28~～180倍。与放大率对应的物镜工作距离:75mm～90mn
⑦与放大率对应的物面最大高度:150mm~～130mm工作台承重:30kg
金属工作台尺:450mm×300mm
⑩主机外形尺寸:580mm× 750mm×660mm
(2）工作原理
影像测量仪是基于机器视觉的自动边缘提取、自动理匹、自动对焦、测量合成、影像合成等人工智能技术，具有点哪走哪自动测量、CNC走位自动测量、自动学习批量测量的功能，影像地图目标指引，全视场鹰眼放大等优异的功能。同时，基于机器视觉与微米精确控制下的自动对焦过程，可以满足清晰影像下辅助测量需要，亦可加入触点测头完成坐标测量。支持空间坐标旋转的优异软件性能，可在工件随意放置或使用夹具的情况下进行批量测量与SPC结果分类。
被测工件置于工作台上，在投射或反射光照明下，工件影像被摄像头摄取并传送到计算机，此时可使用软件的影像、测量等功能，配合对工作台的坐标采集，对工件进行点、线、面全方位测量。
影像测量仪是利用表面光或轮廓光照明后，经变焦距物镜通过摄像镜头，摄取影像再通过S端子传送到电脑屏幕上，然后以十字线发生器在显示器上产生的视频十字线为基准对被测物进行瞄准测量。并通过工作台带动光学尺，在X、Y方向上移动由DC-3000多功能数据处理器进行数据处理，通过软件进行演算完成测量工作。影像测量主要是利用变焦距物镜将物体放大，再将其投影到屏幕上进行的工具。
影像测量，即通过CCD摄取外界物体图像，通过光电转换，将图像数据信息传送给计算机，通过计算机上的图像处理软件进行图像处理、几何计算，最后得出物体位置信息、轮廓尺寸参数等物体信息，再利用后续的专用反馈控制系统对机床加工进行反馈控制，具有非接触性、实时性以及高精度性等特点。影像测量系统的大体框架如图所示:
图像采集系统包括光学成像系统（照明光源)、图像传感器、光学镜头以及图像采集卡，系统采集的图像质量直接影响到后续处理过程的准确性，是高精度测量的重要前提，图像处理算法的优劣也直接影响系统的实时性和精度。
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。
(1)
Image measuring instrument is a kind of high precision optical image measuring instrument composed of high resolution CCD color lens, continuous zoom objective lens, color display, video crosshair display, precision grating ruler, multi-function data processor, data measuring software and high precision table structure.
Processing and customization: no
Resolution :0.001 (mm)
Measuring stroke :250*150*200 (mm)
Brand: Inst Force
Model: the VME - 4030
Magnification: optical 0.7-4.5x
Images of 28-180 - x
Operation mode: manual
Measurement accuracy :(3+L/200)um
Dimensions (L * W * H):1000*650*1650 (mm)
JVB250 specification parameters:
① Measuring range :X coordinate :250mmY coordinate :150mm
Focusing stroke :7 Coordinates :200mm
X, Y, coordinate resolution :0.0005mm
③ Instrument accuracy :(3+L/200) um where L is the measured length, unit mmCCD camera :1/3 "color camera, pixel number :795(H)×596(V)
⑤ Magnification of the objective lens :0.7~4.5× continuous multiplication, image magnification 28~ 180 times. The working distance of the objective lens corresponding to the magnification :75mm ~ 90Mn
⑦ And magnification corresponding to the maximum height of the surface :150mm~ 130mm workbench bearing :30kg
Metal table size :450mm x 300mm
⑩ Host dimensions :580mm× 750mm×660mm
(2) Working principle
Image measuring instrument is automatic edge detection based on machine vision, automatic horse, af, measuring synthesis, synthetic images, such as artificial intelligence technology, with which automatic measurement points which take walk, CNC automatic measurement, automatic learning batch measuring function, image map goal guidance, the whole field of excellent functions such as eagle eye amplification. At the same time, the automatic focusing process based on machine vision and micron precise control can meet the need of auxiliary measurement under clear image, and can also be added to the contact probe to complete coordinate measurement. Excellent software performance to support spatial coordinate rotation, batch measurement and SPC result classification in the case of workpiece placement or use of fixture.
The measured workpiece is placed on the workbench, under the projection or reflected light lighting, the workpiece image is captured by the camera and transmitted to the computer. At this time, the software image, measurement and other functions can be used to cooperate with the coordinate acquisition of the workbench to measure the workpiece point, line and plane in all directions.
Image measuring instrument is to use surface light or contour illumination, the longitude variable focal length objective lens through the camera lens, image and then transmitted to the computer screen through the S terminal, and then to the crosshair generator generated on the display of the video crosshair as the benchmark for the measured object aiming measurement. And drive the optical ruler through the workbench, move in the X and Y direction by THE DC-3000 multi-functional data processor for data processing, through the software calculus to complete the measurement work. Image measurement is mainly the use of zoom objective to enlarge the object, and then its projection onto the screen tool.
Image measurement, image by CCD to absorb external object, through the photoelectric conversion, the image data information transmitted to the computer, through the computer for image processing, image processing software on the geometric calculation, finally it is concluded that the object position information, the size of the contour parameters such as object, using special follow-up feedback control system to feedback control of machine tool processing, It has the characteristics of non-contact, real-time and high precision. The general framework of the image measurement system is shown in the figure below:
1-220404044250Z2.png
The image acquisition system includes optical imaging system (lighting source), image sensor, optical lens and image acquisition card. The image quality collected by the system directly affects the accuracy of the subsequent processing process, which is an important prerequisite for high-precision measurement. The quality of the image processing algorithm also directly affects the real-time performance and accuracy of the system.
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