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[Image measurement] is a new term in the field of industrial detection and metrology technology today. It represents advanced measurement technologies where digital technology is incorporated into industrial inspection and metrology and spatial geometry calculations are performed. Because of its cutting-edge nature is not known to the general public, nowadays a lot of [image alignment measuring projectors] are fashionable, and they are called "image measuring instruments" in the name of their own.
The real [image measuring instrument] (aka image mapper) is based on the CCD digital imagery and relies on the powerful software capabilities of computer screen measurement techniques and spatial geometry calculations. After the computer is installed with dedicated control and graphic measurement software, it becomes the measuring brain with the software's soul and is the main body of the entire device. It can quickly read the displacement value of the optical ruler, and can obtain the desired result instantaneously through the software module operation based on the spatial geometry; and generates a graphic on the screen for the operator to map and compare, so as to be able to intuitively distinguish There may be deviations in the measurement results. All of this is accomplished in real time in front of today's powerful computer computing capabilities, and the operator himself cannot detect it. This kind of precision instrument that can use CCD digital image, through computer software operation to meet the needs of complex measurement is the real sense of the image measuring instrument, the second element, the third element.....
It can be seen that the computer in the image measuring instrument not only performs simple numerical display, but more importantly, has basic functions such as spatial geometry calculation, graphic display, dimension labeling, and output of CAD graphics, all of which rely on powerful special software.
[Image alignment measuring projector] has a very prominent feature, namely: with [digital display screen] and then computer. This feature is very funny because, since there is a computer monitor, then [digital display screen] should be meaningless, and the format and capacity of the information that the computer can display is really beyond the digital display screen. The computer in the image projection measuring instrument is poor enough to be equivalent to a television or monitor with a cross generator. It is used only as a "shooting range" for visual alignment and as an impersonal device. There is no "wisdom" of electronics and machinery. Therefore, it is not difficult to distinguish between true and false image measuring instruments. First of all, it is to see whether it has a digital display screen, and secondly whether it has spatial geometric calculation capability. 
VM Series Automatic Image Measuring Instrument
Once upon a time, faced with the high-tech thresholds of light, machine, electricity, and software, many companies stopped. The veil of measurement software has almost become an insurmountable barrier that blocks the arrival. Nowadays, it is difficult for the software to be scary. Those “block building technologies†once faced with pressures from various aspects and are struggling. The new round of R&D competition has been quietly formed. This year, the birth of a new generation of image measuring instruments (also known as CNC imagers) with digital capabilities has brought this technology and market competition to the climax and theme. It can be said that bid farewell to the era of hand cranking, to digital, intelligent, automated era of image measuring instrument is the true sense of the second element, the third dimension. And behind the "higher speed, accuracy, and convenience", ±2um measurement accuracy, 750mm/min measurement speed and other desirable performance parameters, where to go, map synchronization, free placement of parts, etc. Efficient and convenient In order to change the limitations of the hand-worn era, the measurement projector was left behind as a standard in accuracy, speed, and operation performance. Only then did the image measuring instrument have the ability and strength to end the measurement of the projector and the microscope of the tool. Technology" mission. And the positioning of the price is in line with the consumption level of the Chinese market, and thus begins to have the competitiveness of mainstream products. Orderly competition can benefit the public and bring the distance between China's industrial testing equipment and international standards to a big step closer. It is moving in the direction of international standards.
The Difference between Digital Image Measuring Instrument (CNC Version) and Hand-type Image Measuring Instrument
The image measuring instrument (also known as image-type precision plotter) is a qualitative leap on the basis of measuring projectors. It upgrades the industrial metrology method from the traditional optical projection alignment to a computer generated based on the digital imaging era. Screen measurement. It is worth mentioning that there is a transitional product on the market with both a digital display and a computer. Strictly speaking, this device that only uses the computer as a sighting tool is not an image measuring instrument and can only be called an "image measuring projector" or an "image alignment projector." In other words: Image measuring instrument is based on computer screen measurement technology and powerful space geometry calculation software. Image measuring instrument is divided into digital image measuring instrument (also known as CNC image instrument) and hand-type image measuring instrument. The difference between them is mainly reflected in the following aspects:
One: The digitized CNC technology achieves which point:
The operation of the hand-cranked image measuring instrument in measuring the distance between the two points A and B is as follows: first shake the X and Y direction handles to align with point A, operate the computer by hand and click the mouse to determine; then shake hands to point B, Repeat the above actions to determine point B. Every time you click the mouse, the optical scale displacement value of the point is read into the computer. When all the points are read in, the computer automatically calculates and obtains the measurement result. All functions and operations are separated.
The digital CNC image measuring instrument is different. It is based on micron-level precise numerical control hardware and humanized operation software. It completely integrates various functions and becomes a truly modern precision instrument. With the basic ability of infinitely variable speed, soft motion, where to go, electronic lock, synchronous reading, etc.; after the mouse moves to find the two points A, B you want to measure, the computer has calculated the measured results for you and displayed The graphics are for verification and shadow synchronization, and it is only a few seconds for beginners to measure the distance between two points.
Two: Digital technology enables workpieces to be placed randomly:
When performing a benchmark measurement, the hand-held image measuring instrument needs to shake the working platform and then pass judgment points to judge the required points. The digital image measuring instrument can use software technology to complete the complex conversion between the space coordinate system rotation and the multi-coordinate system. The measured workpiece can be freely placed, the coordinate origin and the reference direction are randomly established and the measured values ​​are obtained, and the markers are displayed on the screen at the same time. , intuitively see the coordinate direction and measurement point, making the most common reference distance measurement becomes very simple and intuitive.
Three: Digital technology can carry out rapid CNC measurement:
Hand-type image measuring instrument needs manual manual one-by-one hand movement when performing batch measurement of the same workpiece. Sometimes one day has to tens of tens of thousands of laps, and still can only accomplish limited measurement of dozens of complex workpieces. low efficiency.
The digital image measuring instrument can establish CNC coordinate data by means of sample measurement, drawing calculation, CNC data import, etc. The instrument automatically moves to a target point and completes various measurement operations, thereby saving manpower and improving efficiency. Dozens of times the working capacity of the hand-held image measuring instrument, the operator is easy and efficient.
Image measuring instrument and image alignment projector (true and false image measuring instrument)